CN101604138A - Cleaning balde, image processing system, cartridge processing and image forming method - Google Patents
Cleaning balde, image processing system, cartridge processing and image forming method Download PDFInfo
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- CN101604138A CN101604138A CNA2009101459803A CN200910145980A CN101604138A CN 101604138 A CN101604138 A CN 101604138A CN A2009101459803 A CNA2009101459803 A CN A2009101459803A CN 200910145980 A CN200910145980 A CN 200910145980A CN 101604138 A CN101604138 A CN 101604138A
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Abstract
The present invention is cleaning balde, image processing system, cartridge processing and image forming method.A kind of cleaning balde, its surface with the parts that are cleaned contacts, upward powder is removed from this surface that is cleaned, it is characterized in that, have the elastic body scraper plate, the friction factor of the front end transition part of this elastic body scraper plate is below 0.5, and the superficial layer with the front end transition part covering that covers described elastic body scraper plate, the bed thickness of this superficial layer at distance elastic body front end 50 μ m places is more than the 1 μ m below the 50 μ m, and this superficial layer is harder than described elastic body scraper plate.
Description
Technical field
The present invention relates to be used for printer, the cleaning balde of the image processing system of facsimile recorder and duplicating machine etc. has image processing system, cartridge processing and the image forming method of this cleaning balde.
Background technology
Before, in the image processing system of electrofax form, as the image carrier of photoreceptor of the part that is cleaned etc., after toner thereon is transferred on transfer paper and the transfer article, be attached with unwanted residual toner on the surface, this residual toner is removed with cleaning device.
Who knows people, the cleaning member in such cleaning device, and from simple in structure, the viewpoint that clean-up performance is good is generally used rectangular cleaning balde.Such cleaning balde is made of the rectangle elastic body of the grade of polyurethane.The bottom of cleaning balde is by the holding components support, and the transition part of front end contacts with the outer peripheral face of image carrier, and the remaining toner that falls on the image carrier scrapes and removes.
In addition, in recent years, in order to adapt to the requirement of high image quality, occurred using by polymerization etc. and made the image processing system that small particle diameter is close to circular poly-and toner (to call polymerization toner in the following text).This polymerization toner is compared with crushed toner in the past, has the high characteristics of transfer efficiency, can adapt to the requirement of described high image quality thus.But, the occasion of polymerization toner, the difficulty that when its surface from image carrier being removed, will become with cleaning balde, thus will clean bad problem.This is because the good polymerization toner of small particle diameter and circularity can be from the sliding cause of leaking of the small gap between cleaning balde and the image carrier.
Leak in order to restrain this cunning, just be necessary to improve the contact pressure of image carrier and cleaning balde.But, as improve the contact pressure of cleaning balde, will be shown in Fig. 6 a like that, image carrier 23 uprises with the friction of cleaning balde 262, cleaning balde 262 is pulled to the moving direction of image carrier 23, the front end transition part of cleaning balde 23 will curl, and will produce noise with the recovery of the cleaning balde 262 of this antagonism of curling.Further, under the state that curls, proceed cleaning balde as the transition part of the front end of cleaning balde 262, will be as Fig. 6 (b), the local abrasion takes place in the place that occur in terminal number μ m before leaving.In this case, as further cleaning, this local abrasion will become big again.Drop (Fig. 6 c) of front end transition part 262c finally will take place.Dropping of this fore-end will cause that cleaning is bad.
In patent documentation 1, put down in writing at least and the superficial layer that film hardness is pencil hardness B-6H has been set at cleaning balde that constitutes by rubber and the contacted part of image carrier.The occasion of superficial layer that has the film hardness of the pencil hardness B-6H harder in the contact site setting of cleaning balde and image carrier than rubber, with compare with the occasion that the contact site of image carrier is not provided with this superficial layer at cleaning balde, can improve the wearing quality of cleaning balde.In addition, the friction force of the contact portion of cleaning balde and image carrier can also be reduced, the curling of front end transition part of cleaning balde can be restrained thus well.Further, the superficial layer of the pencil hardness of pencil hardness B-6H is yielding firmly and not, has so just further restrained the bending of cleaning balde front end transition part.
In addition, patent documentation 2 after having put down in writing the UV cured material that will contain siloxane elastic scraper being flooded swelling, carries out ultraviolet treatment with irradiation, and the surface forms the cleaning balde of hardened layer.So, the also high hardened layer of elastic scraper hardness that has than UV cured material composition just can be set, the antifriction consumption will improve, and curling of the front end transition part of cleaning balde also just can be inhibited.
No. 3602898 communique of [patent documentation 1] special permission
[patent documentation 2] spy opens the 2004-233818 communique
In general, we know that the bounce-back elastic force of the elastomeric material that is used for cleaning balde is big more, the front end transition part of cleaning balde just is easy to produce small vibrations for image carrier, and the effect that makes the rebound of the contacted toner particle of cleaning balde will become big more, and it is high more that clean-up performance will become.In addition, we know that also the wearing quality of the cleaning balde of the rubber that the use bounce is big more is low more.Thus, in patent documentation 1, put down in writing, formed hard superficial layer, so just be to use the big elastomeric material of bounce-back property, also can be restrained the abrasion of cleaning balde at the front end transition part of cleaning balde.Thereby can keep spatter property.
But big if the bounce-back elasticity of elastomeric material becomes, the small vibrations of the fore-end of cleaning balde will become excessive, make us the unhappy noise that gets thereby might send.As long-time use the superficial layer abrasion will take place, the front end transition part of elastic scraper exposes, and this part of exposing is held body with the picture load and contacted.At this moment, the friction factor of the front end transition part of elastic scraper is big, and exposed portions serve becomes big with the friction force that the picture load is held body, and this exposed portions serve is pulled to the moving direction that the picture load is held body, and the part of exposing is out of shape to the photoreceptor moving direction.At this moment, exposed portions serve to expose area very little, so the distortion of this part of exposing is just small.Exposed portions serve can reset into original shape after the microdeformation of photoreceptor moving direction.This action repeats, and microvibration will take place exposed portions serve.This microvibration will produce undesirable vibrations sound.In addition, this exposed portions serve is by the gyratory directions traction to image carrier, and generation is curling damaged sometimes, as this damaged generation, can cause cleaning bad.
The present invention just makes in view of above background and forms.Purpose of the present invention just provides a kind of generation of both having restrained abnormal sound, cleaning balde, image processing system, cartridge processing and image forming method that again can the long term maintenance spatter property.
Summary of the invention
In order to reach described purpose, the inventor has proposed following technical scheme:
1. cleaning balde, its surface with the parts that are cleaned contacts, and goes up from this surface that is cleaned powder is removed, it is characterized in that,
Have the elastic body scraper plate, the friction factor of the front end transition part of this elastic body scraper plate is below 0.5, and
Have the superficial layer that the front end transition part that covers described elastic body scraper plate covers, the bed thickness of this superficial layer at distance elastic body front end 50 μ m places is more than the 1 μ m below the 50 μ m, and this superficial layer is harder than described elastic body scraper plate.
2. according to above-mentioned 1 cleaning balde, it is characterized in that from survey in the elastic body scraper plate apart from this front end 5mm with the tan Δ peak temperature in the interior zone than apart from the distance of this elastic body front end greater than low 3 ℃ to 7 ℃ of the tan Δ peak temperature in the zone of 5mm.
3. according to above-mentioned 2 cleaning balde, it is characterized in that, as with as described in elastic scraper apart from the tan Δ spike problem in the zone more than its front end 5mm as T1, the tan Δ peak temperature of described superficial layer as T2, is then satisfied t2 〉=t1+40.
4. according to above-mentioned 1 cleaning balde, it is characterized in that described rubber flap comprises the elastomeric material that contains urethane groups, and JIS-A hardness is more than 65 ° below 80 °, the bounce-back elastic modulus is below 80%.
5. according to above-mentioned 1 cleaning balde, it is a kind of from ultraviolet curable resin to it is characterized in that described superficial layer comprises at least, heat reactive resin or fluorine-containing heat reactive resin a kind of.
6. according to above-mentioned 5 cleaning balde, it is characterized in that it comprises the ultraviolet curable resin that each the glue receipts or other documents in duplicate unit as described ultraviolet curable resin has the number-average molecular weight of 300-1500.
7. according to above-mentioned 1 cleaning balde, the front end transition part that it is characterized in that described elastic body scraper plate is by with at least a dip treating of having carried out that is selected from isocyanate compound, fluorine compounds, silicone compounds.
8. according to above-mentioned 7 cleaning balde, the number-average molecular weight that it is characterized in that carrying out the isocyanate compound that described dip treating uses is below 500.
9. an image processing system comprises
Image carrier;
Make the charging device of this image carrier surface charging;
Make the electrostatic latent image of the surface formation electrostatic latent image of charged image carrier form device;
The electrostatic latent image development that forms on this image carrier surface is formed the developing apparatus of toner image;
The lip-deep toner image of this image carrier is transferred to transfer device on the transfer article; And
Contact with the surface of this image carrier, the cleaning balde that will remove attached to the lip-deep residual toner of this image carrier is characterized in that having used above-mentioned 1 cleaning balde as this cleaning balde.
10. a cartridge processing comprises
Image carrier;
And have by contact the cleaning device of the cleaning balde that the toner that will remain in the image carrier surface removes with image carrier surface, it is easy to dismantle to image processing system, it is characterized in that described cleaning balde, is above-mentioned 1 cleaning balde.
11. an image forming method comprises
Surface at image carrier forms toner image;
This toner image is transferred on the transfer article from the supporting body surface;
To remove attached to the lip-deep residual toner of this image carrier with cleaning balde, and it is characterized in that described cleaning balde, be above-mentioned 1 cleaning balde.
At this, the bounce-back elasticity of elastomeric material has correlationship with the viscoelastic tan Δ of expression rubber peak temperature, and tan Δ peak temperature is high more, and bounce-back elasticity is low more, and tan Δ peak temperature is low more, and bounce-back elasticity is high more.
The inventor is by meticulous research, learn that the elastic body scraper plate transition part as elastomeric material is constituted nearby improves processing, make the tan Δ peak temperature nearby of this front end transition part hang down 3 ℃ to 7 degree with the tan Δ peak value that does not carry out improved zone, good spatter property can be both kept exactly, the generation of unusual sound can be restrained again.
In described technical scheme, as proving in the experiment of carrying out in the back, by using the rectangular elastic body scraper plate that constitutes by elastomeric material, what cover that this rectangle elastic body scrapes the front edge of board transition part is the superficial layer also harder than this elastic body, this is elastomeric nearby by degenerative treatments, makes from this front end to hang down 3 ℃ to 7 degree to the elastomeric interior 5mm of survey with tan Δ peak temperature the interior zone and the tan Δ peak temperature that does not carry out improved zone.So good spatter property can be both kept exactly, the generation of unusual sound can be restrained again.
According to technique scheme, the result of confirmatory experiment described later is such, the invention provides a kind of cleaning balde, its surface with the parts that are cleaned contacts, from this surface that is cleaned powder is removed, it is characterized in that, this cleaning balde is hanged down friction treatment, the friction factor that makes its front end transition part is below 0.5, and formation is with the superficial layer of the front end transition part covering of described elastic body scraper plate, this surface bed thickness is that this superficial layer is harder than described elastic body scraper plate, and is made up of ultraviolet hardening resin below the above 50 μ m of 1 μ m.Thus, can in the generation of restraining vibrations and unusual sound, restrain the abrasion of the part of cleaning balde front end face.
In addition, the result of confirmatory experiment as described later, the bed thickness that makes superficial layer is 1～50[μ m], just can restrain curling of superficial layer well, make the antifriction consumption of superficial layer become good, and can restrain low to the tracing ability of the change of the off-centre of photoreceptor etc., can keep good spatter property for a long time.
In addition, by forming superficial layer with ultraviolet hardening resin, as long as the resin that is coated with at the front end transition part of elastic body scraper plate is shone with ultraviolet ray, just can form and have the superficial layer of scraping the hardness of plate hight than elastic body, just can carry out the manufacturing of cleaning balde at an easy rate thus.
Further, the result of confirmatory experiment is such as described later, the friction factor that makes the front end transition part of elastic body scraper plate is below 0.5, even because long-term the use, the superficial layer abrasion, the front end transition part of elastic body scraper plate exposes, because this part of exposing is low with the friction force of the parts surface that is cleaned, can restrain the part of exposing and be drawn, and be out of shape to the moving direction of the parts that are cleaned.Its result can restrain the small variations of the part of exposing, and can restrain the generation that shakes sound thus.In addition, can also restrain curling of the part exposed, and the exposed portions serve shortcoming, its result, the Ke Yi Long phase is kept good spatter property.
That is,, can reach the generation that both can restrain noise according to the present invention, again can the good spatter property of long term maintenance.
Description of drawings
Fig. 1 is the enlarged configuration figure of cleaning balde
Fig. 2 is the summary construction diagram of major part of the printer of example of the present invention.
The key diagram of Fig. 3 (a) and Fig. 3 (b) circularity assay method
Fig. 4 is the stereographic map of cleaning balde.
Fig. 5 tandem type full-colour image forms the major part structural drawing of device.
Fig. 6 (a) is the figure of expression cleaning balde front end transition part rolled state; Fig. 6 (b) is the figure of the part abrasion of the front end face of explanation cleaning balde; The figure that Fig. 6 (c) drops for the transition part of representing cleaning balde.
Embodiment
Below, describe the present invention being applicable to printer (hereinafter to be referred as printer) example as image processing system.
Fig. 2 is the summary construction diagram of the major part of the printer of this example of expression.Printer carries out duplicating of single look, carries out the formation of image according to the view data that the image reading unit that does not have expression among the figure reads.
As shown in Figure 2, printer has the drum type photoreceptor 3 as image carrier.Though the photoreceptor among the figure is a drum type, also can be sheet, endless belt-shaped.
Around the photoreceptor 3, dispose charging device, make latent image become the developing apparatus 5 of toner image, toner image is transferred to as the transfer device on the transfer paper of transfer article 7, the disengaging pawl 8 that transfer paper is separated from image carrier 3, make charger 9 before the cleaning of charged polarity unanimity of toner residual on the image carrier after the transfer printing, with the cleaning device 6 that toner residual on the photoreceptor after the transfer printing 3 is removed, lubricant coating device 10 and with photoreceptor 3 disappear the electricity the electric light 11 etc. that disappears.
Developing apparatus 5 has the developer roll 51 as developer carrier.At this developer roll 51, the power supply of not expressed from figure applies with bias voltage.In the shell of developing apparatus, transport supply spiral 52 and the agitating auger 53 that is stirred with mutually opposite direction while be provided with the developer that dress is deposited.In addition, also be provided with the doctor 54 that the thickness of the developer of carrying on the developer roll 51 is stipulated.Be transported the electric charge of specified polarity on the toner band in the developer that 53 two spirals of spiral 52 and agitating auger transport and stir.Developer is developed roller 51 and draws, by the doctor specific thickness, the respective regions relative with photoreceptor 3 attached to the latent image on the photoreceptor 3 on.
In addition, coating brush 101 the residual toner after the transfer printing on the photoreceptor 3 is grabbed random in, can will remove attached to the part of residual toner after the transfer printing that brushes.
Charger 71 before the transfer printing, disengaging pawl 8, charger 9 before the cleaning is to dispose as required.
In these Charging systems, particularly contact electrification mode, or non-contacting near configuration mode, more welcome, they have the charge efficiency height, and the ozone generating capacity is few, can make the advantage of equipment miniaturization.
In addition, the light source of the exposure device of not expressing among the figure and the electric light 11 that disappears etc. can use fluorescent lamp, tungsten lamp, Halogen lamp LED, mercury vapor lamp, sodium vapor lamp, light emitting diode (LED), semiconductor laser (D), the shiner of electric fluorescent (EL) etc.
In addition,, also can use various filters, for example sharply cut light filter, frequency range light filter, near infrared cutting light filter, two tropism's light filters, interference light filter, cnversion filter for colour temperature etc. for the light that only makes desired frequency range shines.
In these light sources, light emitting diode and semiconductor laser irradiation can be high, and have the wavelength of 600-800nm, and institute thinks preferred light source.
Below the image of printer formed action describe.
After the operating portion of not expressing from figure obtains printing the signal of beginning, charging device 4, developer roll 51, charger 71 before the transfer printing, transfer printing charger 72, separating charger 73, cleaning charger 5 is applied in the voltage or the electric current of regulation respectively in turn at the time point of regulation.Equally, the exposure device and the electric light 11 that disappears etc. also are applied with assigned voltage or electric current at the time point of stipulating respectively in turn.In addition, synchronous therewith, photoreceptor 3, the photoreceptor CD-ROM drive motor (not expressing among the figure) that is used as driving means drives, and turns round with the direction that arrow in scheming is represented.
The photoreceptor 3 that forms electrostatic latent image is developed the magnetic brush swiping of the developer that forms on the roller 51 in the part relative with developing apparatus.At this moment, the electronegative toner on the developer roll 51 is because the development bias voltage of the regulation that is applied on the developer roll 51 is shifted to the electrostatic latent image side, thus toner imageization (development).So, in embodiment of the present invention, the electrostatic development that forms on the photoreceptor 3 is developed by electronegative toner upset by developing apparatus 5.In the present embodiment, be to describe, but be not limited to this with N/P (the local toner that current potential is low adheres to) noncontact charged roller mode.
The toner image that forms on the photoreceptor 3 is transferred to, and the sheet feed section of not expressing from figure is sent on the transfer paper of the transfer area that forms between photoreceptor 3 and the transfer printing charger by last contraposition roller 12 and following contraposition roller 13 relative portions.At this moment, transfer paper is got synchronously with the subtend portion of following contraposition roller 13 at last contraposition roller 12, and is supplied to.In addition, to the transfer paper transfer printing time, apply the bias voltage of regulation.Be transferred the transfer paper of toner image, separated pawl 8 and separating charger 73 separate from photoreceptor 3, are transported to the fixing device of not expressing among the figure as the photographic fixing means.Then, transfer paper applies heat and pressure by this fixing device, and on transfer paper, paper is discharged to outside the machine toner image by photographic fixing.
On the other hand, lubricant is coated by lubricant coating device 10 in the surface of the photoreceptor 3 after the transfer printing, and cleaning device 6 is removed the remaining toner after the transfer printing, disappears with the electric light 11 that disappears then.
In addition, in this printer, can photoreceptor 3 and as the charging device for the treatment of apparatus, developing apparatus 5, cleaning device 6, lubricant coating device 10 grades are stored in the framework 2, are used as cartridge processing 1, do as a whole mounted and removable to device body.But, also can be with photoreceptor 3, developing apparatus 5, cleaning device 6, lubricant coating device 10 carry out new and old exchange respectively.
Below, the toner that is suitable for this printer is described.As being suitable for the toner that printer of the present invention uses, in order to improve picture quality, the preferred use is easy to obtain high rounding, the outstanding turbid polymerization of the toner of small particle diameterization, emulsion polymerization method, the polymerization toner of dispersin polymerization manufactured.
Particularly, circularity is more than 0.97, volume average particle size 5.5[μ m] following polymerization toner position is preferred.By using average circularity is more than 0.97, volume average particle size 5.5[μ m] following toner, can form and have the more image of high image resolution.
At this, " circularity " is the average circularity with flow-type particle picture analytical equipment FPIA-2000 (East Asia medical electric corporate system, trade name) instrumentation.Specifically, in container, remove impure solid content ground 100-150[ml in advance] water in, will be as the surfactant of spreading agent, alkyl benzene sulfonate 0.1-0.5[ml preferably] add, further will measure sample (toner) 0.1-0.5[g] about adding.After this, this toner being dispersed in wherein suspension with the about 1-3 of ultrasonic decollator minute dispersion treatment, is ten thousand/μ of 3000-1[l with concentration] dispersion liquid be contained on the described analytical equipment, the shape and the distribution of toner are measured.Then, based on this measurement result, with the outer perimeter of the toner projection of shape of the reality of Fig. 3 (a) expression as C1, with projected area as S, the girth of the real circle of Fig. 3 (b) identical with this projected area S expression is asked the C2/C1 of this moment as C2, with its mean value as circularity.
About volume average particle size, can with can and his (コ one Le -) method is asked for.Specifically, with can and the number of the toner that his many sizes (コ one Le one マ Le チ サ イ ザ one) 2e type (can and he corporate system) is measured distributes and the data of volume distributed median, send into personal computer by interface (day section's machine corporate system) and resolve and obtain.In more detail, be with 1 grade sodium chloride make the 1%NaCl aqueous solution as electrolytic solution.Then, to this electrolytic aqueous solution 100-150[ml] in add surfactant, particularly alkyl benzene sulfonate 0.1-5[ml as spreading agent].Further, to the toner 2-20[mg that wherein adds as detected sample], with the dispersion treatment of the about 1-3 branch of ultrasonic decollator.Then, in another beaker, add electrolytic aqueous solution 100-200[ml], the solution after wherein adding dispersion treatment and obtain decide concentration, be added in described can and on his multi-dimension measurement instrument (コ one Le one マ Le チ サ イ ザ one) the 2e type.The space is 100[μ m], the particle diameter of 50,000 toner particles is measured.Measure 2.00-2.52[μ m] less than; 2.52-3.17[μ m] less than; 3.17-4.00[μ m] less than; 4.00-5.04[μ m] less than; 5.04-6.35[μ m] less than; 6.35-8.00[μ m] less than; 8.00-10.08[μ m] less than; 10.08-12.70[μ m] less than; 12.70-16.00[μ m] less than; 16.00-20.20[μ m] less than; 20.20-25.40[μ m] less than; 25.40-32.00[μ m] less than; 32.00-40.30[μ m] less than 13 intervals.Promptly with particle diameter 2.00[μ m] above 32.0[μ m] following toner particle is as object.Then, based on the relational expression of " volume average particle size=∑ XfV/ ∑ fV ", volume average particle size is calculated.But X is the representative diameter of a section, and V is the suitable volume of the representative diameter of each section, and f is the particle number of each section.
Such polymerization toner, even want with cleaning balde 62 it to be removed from photoreceptor 3 surfaces like that as described, this polymerization toner can not be removed fully from photoreceptor 3 surfaces, thus it is bad that cleaning takes place.Therefore,, improve spatter property, will produce the problem of cleaning balde 62 too early abrasions as improving by cleaning balde 62 is pressed with contacting of photoreceptor 3.In addition, the friction force of cleaning balde 62 and photoreceptor 3 will improve, and the front end transition part that cleaning balde 62 contacts with photoreceptor 3 will be drawn to the moving direction towards photoreceptor 3, thereby the front end transition part takes place to curl.The front end transition part of cleaning balde 62 takes place to curl, and produces strange sound and vibration, the various problems such as damaged of front end transition part.
Therefore, in the present embodiment, be provided with the superficial layer also higher of the front end transition part that covers cleaning balde 62 than the hardness of elastic body scraper plate 622.
Fig. 4 is the oblique view of cleaning balde 62.Fig. 1 is the amplification assumption diagram of cleaning balde 62.Cleaning balde 62 is that the support 621 of the rectangular shape that constitutes of the rigid material by metal and rigid plastic etc. and the elastic body scraper plate 622 of rectangular shape constitute.The front end transition part 62c of 62b closely is close to and has formed the superficial layer 623 that covers front end transition part 62c below all and scraper plate at the front end face 62a of cleaning balde 62.
Elastic body scraper plate 622 is distolaterally fixed the other end of support 621, the shell support of the device 6 that is cleaned at one of support 621 with sticker.
As elastic body scraper plate 622, for the off-centre of following photoreceptor 3 and the small fluctuating of photosensitive surface etc., preferred high anti-flexible elastic body, this is advisable with the rubber with urethane groups.Particularly, the hardness in the time of 25 ℃ is 65-80 degree (JISA), and the bounce-back elastic modulus is 80[%] following urethane rubber is for preferred.Hardness as urethane rubber surpasses 80 degree, lack flexibility, for example, when support 621 has Wei Xiao Pour oblique with being mounted, being easy to take place on the direction of principal axis of cleaning balde 62 distolateral and his distolateral contacting presses the contact that is difficult to obtain homogeneous on the different so-called inclined to one side contact ， Shaft directions to press.Its result might make the low of spatter property change.On the other hand, hardness 65 degree less than Games close, as contacting compression set when even the Gao De polymerization toner also can clean, cleaning balde 62 will turn over, the front end transition part 62c of cleaning balde 62 floats, 62b just contacts with photoreceptor 3 below the scraper plate of cleaning balde 62, and phenomenon of colliding in so-called midfield has just taken place for this.As the phenomenon of colliding in the midfield has taken place, and the contact area of cleaning balde 62 and photosensitive surface will dramatically increase, even cleaning balde 62 usefulness are pushed energetically, the contact contact is pressed diminish, and it is low that spatter property becomes.
In addition, the bounce-back elastic modulus as surpass 80 (%], when cleaning balde 62 takes place to curl, just be easy to send very big unusual sound.
So, as the rubber that contains urethane groups, use the hardness in the time of 25 ℃ to be 65-85 degree (JISA), the bounce-back elastic modulus is 80[%] following rubber, just can both suppress the generation of unusual sound, can obtain good spatter property again.
In addition, as the material of superficial layer 623, resin is preferred, and ultraviolet curable resin is for more preferably.Use ultraviolet curable resin, only the resin that the front end transition part 62c of cleaning balde 62 is being paid shines with ultraviolet ray, just can obtain having the superficial layer 623 of the hardness of being hoped, thereby cheapness makes cleaning balde 62.
As described ultraviolet curable resin, the monomer of a suitable molecular weight 300-1500 of functional group is preferred.Molecular weight surpasses above 1500 as described, and superficial layer 623 is too fragile, and the front end transition part 62c of cleaning balde 62 curls, and the such front end face abrasion of Fig. 6 (b) can take place exactly, for a long time keeping clean property.But low as molecular weight ratio 300, it is too upright and outspoken that superficial layer 623 becomes.It is too upright and outspoken that superficial layer 623 becomes, the antifriction consumption of superficial layer 623 can low, the vibrations sound will become and be easy to take place.Its reason also is not clear especially, but may be following reason.Promptly the Games of the cleaning balde that is only obtained by elastomeric material in the past closes, and the front end transition part is pulled to the photoreceptor moving direction, when the front end transition part returns to the original form thereafter, thereby sends the vibrations sound.On the other hand, too upright and outspoken Games closes, even the front end transition part is pulled to the photoreceptor moving direction, is out of shape also very smallly, and the result is the small vibrations of front end transition part, also sends the vibrations sound.
In addition, too upright and outspoken Games closes, and the front end transition part of cleaning balde is not towards the distortion of photoreceptor moving direction and do not move with photosensitive surface, thus with photosensitive surface swiping ceaselessly.Thus, opposite antifriction consumption becomes low.That is, the transition part that make cleaning balde makes the front end transition part of cleaning balde be in unconvoluted degree to the distortion of photoreceptor moving direction, just can restrain the front end transition part of cleaning balde and the swiping of photoreceptor thus, thereby the antifriction consumption is improved.
In addition, as become too upright and outspoken, can become low the followability of the change of off-centre of photoreceptor etc.Its result can not obtain well getting spatter property.
In addition,, use the monomer of the suitable molecular weight 300-1500 of a functional group, can obtain not making to amount of crimp the superficial layer of front end transition part to the hardness of photoreceptor moving direction distortion with the front end transition part of cleaning balde as ultraviolet curable resin.Its result can not shake sound, and the antifriction consumption is good, the cleaning balde that the local abrasion of front end face is inhibited.In addition, can also well follow the change of off-centre of photoreceptor etc.
In addition, described ultraviolet curable resin monomer, the monomer that can be mixed with two or more, making the suitable number-average molecular weight of each functional group is 300-1500.
In addition, in described ultraviolet curable resin, can add fluororesin with the purpose of reduction with the friction factor of photoreceptor 3, the low-friction coefficient of silicone resin etc. changes into branch.In addition, for the stickability that makes the elastic body scraper plate 622 that is made of rubber makes progress, can add isocyanate compound.
In addition, preferably from front end transition part 62c with the possibility that contacts with photoreceptor 3 to leaving 50[μ m at least] the position, below front end face 62a and scraper plate, form superficial layer on the 62b.Thus, even truncated in the surface of front end transition part 62c, elastic body scraper plate 622 directly contacts with photoreceptor 3, even moreover front end transition part 62c curl, the Games that leaves number [μ m] at the front end transition part 62c from front end face 62a contacts with photoreceptor 3, because there is superficial layer 62 at this place
3 form, thereby can restrain the local abrasion of front end face 62a.Thus, just can restrain the cleaning balde 62 that the local abrasion owing to front end face 62a causes front end transition part 62c owe.In addition, because the alignment error of photoreceptor 3 and the alignment error of cleaning balde 62 etc., can make the contact of cleaning balde 62 press necessity to uprise abovely, cleaning balde 62 is necessary above crooked, cleaning balde contacts with photoreceptor 3 in the place that the front end transition part 62c of 62b below scraper plate leaves number [μ m], because this place also has superficial layer 623 to form, thereby can restrain the local abrasion below the scraper plate.
In addition, the bed thickness of superficial layer 623,1-50[μ m] preferred.Bed thickness 1[μ m] below, the rigidity of superficial layer 623 dies down, and the front end transition part 62c of cleaning balde 62 becomes and is easy to curl.In addition, surpass 50[μ m as bed thickness], toner to slip out change many, clean the bad generation that just is easy to.Superficial layer 623 can form with spraying coating and dip coated, fluent material is being paid so that form superficial layer 623, but front end transition part 62c is because capillary relation is difficult to form diaphragm.Thus, become far away along with must leave distance from front end transition part 62c, the bed thickness of superficial layer 623 increases.If in distance front end transition part 62c distance is 50[μ m] the position, bed thickness is 50um when above, the angle Bian of the front end transition part 62c of cleaning balde 62 is the Blunt angle.The occasion at the Jiao degree Bian Wei Blunt angle of front end transition part 62c and front end transition part 62c compare into the Games at right angle closes, and the space X of the upstream side of the contact site that front end face 62a and photoreceptor 3 form (Fig. 1 with reference to) stenosis is narrow.Thus, carry out cleaning action for a long time, toner will be piled up in the space, the place that the toner in the space X that clogs does not just go, and the toner in the X of space will be pulled to the downstream side of photoreceptor 3 at leisure, cleans bad generation.
In addition, as surpassing 50[μ m], it is too upright and outspoken that cleaning balde becomes, such as described, and the vibrations sound just is easy to take place, and the antifriction consumption is low, and followability is low.
As long-term use, superficial layer 623 is by abrasion, and the front end transition part of elastic body scraper plate 622 exposes, and the exposed division of the front end transition part of this elastic body scraper plate 622 will contact with photosensitive surface.And, such as described, in spraying coating and dip coated; fluent material is adhered to form superficial layer 623; but front end transition part 62c is owing to capillary relation, and diaphragm is difficult to form, and the bed thickness of the superficial layer 623 of front end transition part is compared also thin with other parts.Thus, the front end transition part of elastic body scraper plate 622 can expose too early.
At this moment, the Games that the front end transition part of elastic body scraper plate 622 is not hanged down the frictionization processing closes, the friction factor height of the part of exposing, and the friction of part that this exposes and photoreceptor 3 is big, and thus, the part of exposing spurs to the photoreceptor moving direction.At this moment, because the area of exposed portions serve is very little, the distortion of the part of exposing is small.Its result, the part of exposing has microdeformation, and the vibrations sound will take place.Further, this exposed portions serve is curled sometimes.Exposed portions serve one takes place to curl, and the exposed portions serve of curling of elastic body scraper plate 622 and the boundary part stress of superficial layer 623 are big, and the exposed portions serve of curling will owe, and it is bad that cleaning takes place.
Therefore, the front end transition part of elastic body scraper plate 622, with spraying coating, dip coated etc., with at least a isocyanate compound that is selected from, fluorine compounds, the low friction treatment that the compound of silicone compounds immerses becomes below 0.5 friction factor.Thus, owing to the front end transition part of the elastic body scraper plate 622 that long-time abrasion is exposed and the friction force of photoreceptor 3 die down, and can restrain the distortion to the photosensitive surface moving direction of the part of exposing.Its result restrains the generation of vibrations sound.In addition, can restrain exposed portions serve the exposed portions serve of curling and curling owe.Further, because the friction factor of the front end transition part of elastic body scraper plate 622 is become below 0.5, exposed portions serve is difficult to be truncated by photoreceptor 3, thereby improves the antifriction consumption of cleaning balde 62.
In addition, as superficial layer 623 further by abrasion, when the major part of the front end transition part of elastic body scraper plate 622 was exposed, because elastic body scraper plate 622 softnesses, so the front end transition part is easy to the distortion of photoreceptor moving direction, the front end transition part was easy to curl.But,, thereby can restrain of the distortion of the front end transition part of elastic body scraper plate 622 to the photoreceptor moving direction because the friction factor of front end transition part is low.Further, than the front end transition part of elastic body scraper plate 622 the upright and outspoken superficial layer 623 that does not also disappear, can restrain of the distortion of front end transition part to the photoreceptor moving direction owing to abrasion in photoreceptor moving direction more downstream side.So, the friction factor of front end transition part is in below 0.5, and the Overlay of the superficial layer 623 of the downstream side on the photoreceptor moving direction, just can restrain curling of front end transition part, can restrain the abrasion of the part of front end face.Its result has just restrained the front end transition part and has owed, and can keep long clean-up performance.
At this, in general, the bounce-back elasticity of the elastomeric material that cleaning balde uses is big more, and the easy more microvibration of the front end transition part of cleaning balde makes the effect of the toner rebound that contacts with cleaning balde will be big more, and it is high more that clean-up performance also will become.In addition, use the cleaning balde of the big elastomeric material of bounce-back elasticity more, its antifriction consumption is low more.Thus, form hard superficial layer,, also can restrain the abrasion of cleaning balde, thereby can keep long-term spatter property even use the big elastomeric material of bounce-back elasticity as front end transition part at cleaning balde.But the bounce-back elasticity of elastomeric material is big more, and the microvibration of the front end transition part of cleaning balde will become excessive, thereby might send the beastly unusual sound of vibrations sound etc.In addition, the bounce-back elasticity of elastomeric material has correlationship with the viscoelastic tan Δ peak temperature of expression elastomeric material, and tan Δ peak temperature is high more, and bounce-back elasticity is low more, and tan Δ peak temperature is low more, and bounce-back elasticity is high more.
Inventor of the present invention, carried out conscientiously research, find, as Fig. 1 represent, as to peak temperature-6[℃ of tan Δ] near the leading section (the front end transition part) of the elastic body scraper plate that constitutes of above rubber improves processing, the tan Δ peak temperature that makes the 62d of improvement portion is than low 3[℃ of the tan Δ peak temperature in the place of not improving processing] to 7[℃], just can promptly keep good spatter property, can restrain the unusual sound generation of vibrations sound etc. again.
Below, inventor of the present invention is carried out, the confirmatory experiment of the generation of the long-term spatter property of cleaning balde and vibrations sound etc. describes.In this confirmatory experiment, make the material of elastic body scraper plate, the composition of the impregnant that uses is handled near the improvement of the leading section (the front end transition part) of elastic body scraper plate, and the material of superficial layer that covers the front end transition part of elastic body scraper plate is carried out various variations, carries out durability experiment.
[elastic body scraper plate]
As elastic body scraper plate 622, used 25[℃] time rerum natura be 7 kinds of following urethane rubbers.
Urethane rubber 1: hardness 70 degree, bounce-back elasticity 50[%] (Japan's rubber industry system)
Urethane rubber 2: hardness 72 degree, bounce-back elasticity 31[%] (Japan's rubber industry system)
Urethane rubber 3: hardness 71 degree, bounce-back elasticity 18[%] (Japan's rubber industry system)
Urethane rubber 4: hardness 77 degree, the anti-elasticity 27% (Xin Jiteku (シ Application ジ one テ Star Network) system) of sending out
Urethane rubber 5: hardness 70 degree, the anti-elasticity 68% (Xin Jiteku (シ Application ジ one テ Star Network) system) of sending out
Urethane rubber 6: hardness 75 degree, bounce-back elasticity 50[%] (Japan's rubber industry system)
Urethane rubber 7: hardness 77 degree, the anti-elasticity 17% (Xin Jiteku (シ Application ジ one テ Star Network) system) of sending out
The hardness of urethane rubber is the duro-meter (sclerometer) with Shimadzu Seisakusho Ltd.'s system, measures by JIS K6253.With about 2[mm] thin slice overlapping, thereby make the thick 6[mm of becoming of sample] more than.
The bounce-back elasticity of urethane rubber is made made no .221 elasticity tester (レ ジ リ エ Application ス テ ス ) with the smart mechanism of Japan, measures by JIS K6255.With about 2[mm] thin slice overlapping, thereby make the thick change of sample 4[mm] more than.
[impregnant]
Impregnant is as follows.
[superficial layer]
Superficial layer is as follows.
Low frictional factor adjuvant copolymer A 1 in the superficial layer 5 is the multipolymer of following compounds.(a-1) of this compound and have the side chain (a-2) that has acryloxy (a-3):
The weight-average molecular weight of using GPC method (gel permeation chromatography) to obtain copolymer A 1 is 37,000 (polystyrene conversion), and molecular weight distributing index (Mw/Mn) is used for 1.9.
1(a-1) of the copolymer A 1 of H-NMR. trying to achieve: weight ratio (a-2) is 1: 1.73.
Below, the structure of the image processing system that carries out confirmatory experiment is described.
Use any of described urethane rubber 1-3, make thick 2[mm] the elastic body scraper plate of rectangular shape, in the leading section 5m m with this elastic body scraper plate, be immersed in any of impregnant 1-3 10 fens, thereafter, the elastic body scraper plate is put into temperature adjustment to 100[℃] calibration cell in 10 minutes, the isocyanates that contains in urethane rubber and the impregnant reacts, to described leading section 5[mm] handle with interior.In addition, as isocyanates, MDI, HDI equimolecular quantity being easy to below 500 flooded, and is preferred thing.Then, the improvement of the leading section of elastic body scraper plate scope in ultraviolet curable resin coating, make any thickness of superficial layer 1-3 become 10[μ m].Specifically, to the elastic body scraper plate of forming by various urethane rubbers, from 2 direction 10[mm/s of scraper plate face and front end face] the fog gun translational speed carry out 2 coatings, after 3 minutes dryings, with ultraviolet exposure (140[W/cm] * 5[m/min] * 5 times).But, advise with Masking strip below the scraper plate and put, at front end 3[mm] and the amplitude degree, form superficial layer.Ultraviolet curable resin preferably when polymerization three-dimensional glue receipts or other documents in duplicate unit molecular weight be the urethane acrylate of 300-1500, described molecular weight with 1000-1500 for more preferably.
The elastic body scraper plate that has formed such superficial layer is bonded on the sheet metal support that can be contained on the colored compounding machine imagio of the Ricoh's system Neo C455 with cementing agent, makes and study cleaning balde.The cleaning balde of making is installed in the colored compounding machine imagioNeo C455 (structure same with Fig. 2) of Ricoh's system.In addition, cleaning balde is installed will be made line pressure: 20[g/cm], cleaning angle: 79 degree.
In the confirmatory experiment, the toner that uses polymerization to make.In addition, the rerum natura of toner is as follows.
Toner parent: circularity 0.98, mean grain size 4.9[μ m]
Additive: small particle diameter silica 1 .5 portion (Larry, storehouse An Te (Network ラ リ ア Application ト) makes H 2000)
0.5 one of small particle diameter titanium dioxide (too with card (テ イ カ) system MT-150AI)
Big particle diameter silica 1 .0 portion (electrochemical industry system UFP-30H)
The evaluation environment of confirmatory experiment: 20[℃] 65[%RH], logical paper slip spare: image area rate 5[%] and pattern carries out printing/pattern 3 times, prints 500,000 pieces (A4 horizontal strokes).Then, carry out the evaluation of following project.
[assessment item].
Clean bad generation: have or not (image area ratio 5[%] pattern output visualization)
Scrape front edge of board abrasion area: the abrasion area that side is seen below the scraper plate
In addition, the bed thickness of superficial layer, with system Ma Yiku Lao Sikaopu (the マ イ Network ロ ス コ one) VHX-100 of the department of showing mercy (キ one エ Application ス), and the section of the elastic body scraper plate of same coating is measured in addition.Section forms sample with day cutting out with in the great waves paddy (ト リ ミ Application グ) blades advance the SEM sample production of EM system.
In addition, the friction factor of elastic scraper front end transition part can corporate system friction abrasion experimental machine (scraper stent is being adorned) be measured with new eastern science strain formula.Specifically, on glass plate, form " photoreceptor of drawing up " with the congruent diaphragm of photosensitive body surface surface layer.Cleaning balde with to install with above-mentioned same contact conditions (angle: 79 °, line pressure: 20[g/cm]).Make glass plate motion, thus the dynamic friction coefficient when recording this.
In addition, the mensuration of the tan Δ peak temperature of elastic body scraper plate is carried out in the following sequence by old JIS-K7198.
(1) in the fixed impregnant with urethane rubber Jin Stains 10 minutes, pull on the back with 100[℃] electric furnace carry out calcining in 15 minutes., carry out 1 week place, the preparation sample thereafter.(2) this sample is cut 40[mm] * 5[mm] one section, be contained on the determination of viscoelasticity device DMS6100 of SII corporate system.(3) stretching mode, sinusoidal wave mensuration mode, programming rate 3[℃/minute], cycle 1[Hz], from-50[℃] to+80[℃] and carry out determination of viscoelasticity, ask tan Δ peak temperature with its measurement result.
The result of embodiment 1-22 and comparing embodiment 1-10 is expressed as follows.
Table 1-1
| Embodiment | Urethane rubber | Impregnant | Superficial layer | The hardness of urethane rubber | The bounce-back elastic modulus (%) of urethane rubber |
| Embodiment 1 | ??1 | ??1 | ??1 | ??70 | ??50 |
| Embodiment 2 | ??1 | ??2 | ??2 | ??70 | ??50 |
| Embodiment 3 | ??1 | ??3 | ??3 | ??70 | ??50 |
| Embodiment 4 | ??1 | ??4 | ??4 | ??70 | ??50 |
| Embodiment 5 | ??1 | ??5 | ??4 | ??70 | ??50 |
| Embodiment 6 | ??2 | ??2 | ??4 | ??72 | ??31 |
| Embodiment 7 | ??3 | ??2 | ??4 | ??71 | ??18 |
| Embodiment 8 | ??4 | ??2 | ??4 | ??77 | ??27 |
| Embodiment 9 | ??4 | ??4 | ??4 | ??77 | ??27 |
| Embodiment 10 | ??5 | ??4 | ??4 | ??70 | ??68 |
| Embodiment 11 | ??3 | ??1 | ??5 | ??71 | ??18 |
| Embodiment 12 | ??3 | ??6 | ??3 | ??71 | ??18 |
| Embodiment 13 | ??3 | ??7 | ??3 | ??71 | ??18 |
| Embodiment 14 | ??3 | ??7 | ??6 | ??71 | ??18 |
| |
??3 | ??8 | ??3 | ??71 | ??18 |
| |
??3 | ??8 | ??6 | ??71 | ??18 |
| Embodiment 17 | ??3 | ??9 | ??6 | ??71 | ??18 |
| Embodiment 18 | ??3 | ??7 | ??1 | ??71 | ??18 |
| Embodiment 19 | ??3 | ??8 | ??6 | ??71 | ??18 |
| Embodiment 20 | ??3 | ??10 | ??7 | ??71 | ??18 |
| Embodiment 21 | ??7 | ??7 | ??1 | ??77 | ??17 |
| Embodiment 22 | ??7 | ??9 | ??3 | ??77 | ??17 |
| Comparing |
??1 | ??- | ??- | ??70 | ??50 |
| Comparing |
??1 | ??1 | ??- | ??70 | ??50 |
| Comparing |
??1 | ??- | ??1 | ??70 | ??50 |
| Comparing |
??1 | ??1 | ??2 | ??70 | ??50 |
| Comparing |
??1 | ??4 | ??- | ??70 | ??50 |
| Relatively more real | ??3 | ??7 | ??- | ??71 | ??18 |
| Execute example 6 | |||||
| Comparing |
??6 | ??- | ??1 | ??75 | ??50 |
| Comparing |
??1 | ??7 | ??- | ??70 | ??50 |
| Comparing embodiment 9 | ??3 | ??- | ??- | ??71 | ??18 |
| Comparing |
??7 | ??- | ??1 | ??77 | ??17 |
Table 1-2
| Embodiment | The coefficient of friction of front end | The Tan Δ peak temperature of urethane rubber (℃) | The Tan Δ peak temperature of front end (℃) | Surface layer thickness (μ m) apart from front end 50 μ m places |
| |
??0.3 | ??-19 | ??-20 | ??5 |
| |
??0.15 | ??-19 | ??-20 | ??7 |
| |
??0.12 | ??-19 | ??-20 | ??8 |
| |
??0.1 | ??-19 | ??-21 | ??8 |
| |
??0.15 | ??-19 | ??-21 | ??9 |
| |
??0.15 | ??-8 | ??-11 | ??5 |
| |
??0.15 | ??-6 | ??-9 | ??5 |
| |
??0.12 | ??+1 | ??-4 | ??5 |
| Embodiment 9 | ??0.1 | ??+1 | ??-3 | ??5 |
| |
??0.12 | ??-20 | ??-21 | ??5 |
| |
??0.1 | ??-6 | ??-11 | ??3 |
| |
??0.12 | ??-6 | ??-12 | ??5 |
| |
??0.3 | ??-6 | ??-11 | ??10 |
| |
??0.15 | ??-6 | ??-11 | ??10 |
| |
??0.12 | ??-6 | ??-9 | ??10 |
| |
??0.12 | ??-6. | ??-9 | ??10 |
| Embodiment 17 | ??0.1 | ??-6 | ??-13 | ??10 |
| Embodiment 18 | ??0.15 | ??-6 | ??-11 | ??10 |
| Embodiment 19 | ??0.12 | ??-6 | ??-11 | ??10 |
| Embodiment 20 | ??0.1 | ??-6 | ??-9 | ??10 |
| Embodiment 21 | ??0.1 | ??+5 | ??0 | ??10 |
| Embodiment 22 | ??0.1 | ??+5 | ??-1 | ??10 |
| Comparing |
??1.2 | ??-19 | ??- | ??- |
| Comparing |
??0.3 | ??-19 | ??-20 | ??- |
| Comparing |
??1.2 | ??-19 | ??- | ??5 |
| Comparing |
??0.3 | ??-19 | ??-20 | ??70 |
| Comparing |
??0.1 | ??-19 | ??-21 | ??- |
| Comparing |
??0.3 | ??-6 | ??-11 | ??- |
| Comparing |
??1.2 | ??-18 | ??- | ??10 |
| Comparing |
??0.2 | ??-19 | ??-20 | ??- |
| Comparing embodiment | ??1.2 | ??-6 | ??- | ??- |
| ??9 | ||||
| Comparing |
??1.2 | ??-18 | ?- | ??10 |
Table 1-3
| Embodiment | Friction amplitude (μ m) after 50,000 images are exported | Friction amplitude (μ m) after 500,000 images are exported | Cleanliness | Noise | Appendix |
| Embodiment | |||||
| 1 | ??15 | ??100 | Good | Do not have | |
| |
??10 | ??100 | Good | Do not have | |
| |
??10 | ??100 | Good | Do not have | |
| |
??10 | ??100 | Good | Do not have | |
| |
??15 | ??100 | Good | Do not have | |
| |
??10 | ??75 | Good | Do not have | |
| |
??10 | ??75 | Good | Do not have | |
| |
??10 | ??50 | Good | Do not have | |
| Embodiment 9 | ??15 | ??50 | Good | Do not have | |
| |
??10 | ??100 | Good | Do not have | |
| |
??10 | ??75 | Good | Do not have | |
| |
??10 | ??75 | Good | Do not have | |
| |
??10 | ??100 | Good | Do not have |
| |
?10 | ??75 | Good | Do not have | |
| |
?10 | ??100 | Good | Do not have | |
| |
?10 | ??100 | Good | Do not have | |
| Embodiment 17 | ?10 | ??50 | Good | Do not have | |
| Embodiment 18 | ?15 | ??100 | Good | Do not have | |
| Embodiment 19 | ?10 | ??50 | Good | Do not have | |
| Embodiment 20 | ?15 | ??100 | Good | Do not have | |
| Embodiment 21 | ?10 | ??50 | Good | Do not have | |
| Embodiment 22 | ?10 | ??75 | Good | Do not have | |
| Comparing |
?20 | ??400 | Bad 2 places of banded cleaning | Do not have | Front end has abrasion and local |
| Comparing embodiment | |||||
| 2 | ?50 | ??300 | The muscle shape cleans bad 2 places | Do not have | Front end has abrasion and local |
| Comparing embodiment | |||||
| 3 | ?50 | ??250 | Bad 2 places of banded cleaning | Have | |
| Relatively more real | ?150 | ??500 | Banded cleaning is bad | Have |
| Execute example 4 | 5 | ||||
| Comparing embodiment | |||||
| 5 | ??50 | ??300 | The muscle shape cleans bad 3 places | Do not have | Front end has abrasion and local |
| Comparing embodiment | |||||
| 6 | ??15 | ??300 | The muscle shape cleans bad 2 places | Do not have | Front end has abrasion and local |
| Comparing embodiment | |||||
| 7 | ??10 | ??250 | Bad 2 places of banded cleaning | Have | |
| Comparing |
??15 | ??400 | The muscle shape cleans bad 2 places | Do not have | Front end has abrasion and local abrasion |
| Comparing embodiment 9 | ??15 | ??300 | The muscle shape cleans bad 2 places | Do not have | Front end has abrasion and local |
| Comparing embodiment | |||||
| 10 | ??10 | ??250 | Bad 2 places of banded cleaning | Have |
The front end transition part closely is close in the comparative example 3 that does not carry out tan Δ temperature decline processing, and the Bands shape cleans bad generation, and vibrations sound beastly in addition also can confirm.In addition, as observing the front end transition part of cleaning balde, shortcoming is identified.This is because long-term the use, the superficial layer abrasion, the front end transition part of elastic scraper exposes, the all tan Δ temperature of cleaning balde is low, in other words, the bounce-back elasticity coefficient height that cleaning balde is all, so, the microvibration of the part that this exposes excessive the result that becomes sends vibrations sound beastly.In addition, the exposed portions serve of elastic scraper is curled, and this curling exposed portions serve owes, and the front end transition part shortcoming of cleaning balde obtains confirming.The such cleaning bad phenomenon that must lack and bring the Bands shape.
In addition, comparative example 2,5,6,8 expressions like that, even closely being close at the front end transition part, the improvement processing that tan Δ temperature is reduced carries out, because the front end transition part is not provided with superficial layer, the microvibration of front end transition part is excessive, even can restrain the unusual sound of vibrations sound etc., but the local abrasion meeting of front end face takes place, and the cleaning of strip is bad also can be produced.
On the other hand, in embodiment 1-22, vibrations sound beastly does not confirm.In addition, when the cleaning balde after confirmatory experiment is ended was confirmed, the superficial layer of front end transition part was fallen by abrasion, and the front end transition part of elastic scraper exposes.So, in embodiment 1-22, although carried out front end transition part that the improvement of elastic scraper handles and photoreceptor and contacted, the cleaning of local abrasion of front end face and Bands shape strip is bad not to be identified.This be because, in embodiment 1-22, front end transition part exposed division than elastic body scraper plate on the photoreceptor moving direction also will be at the superficial layer of downstream side, restrained of the distortion of the front end transition part of the elastic body scraper plate that exposes to the photoreceptor moving direction, thus, the front end face of cleaning balde does not produce local abrasion.
Vibrations sound beastly in embodiment a-e, does not take place in the result from the confirmatory experiment of table 2 expression, does not produce the local abrasion of front end face, can the good spatter property of long term maintenance.In addition, because dipping improve to handle, the elastic body scraper plate is from the abrasion speed Di of body Minus, so the life-span is not compared and will grow more than 2 times than flooding the common elastic body scraper plate (comparative example 1 and comparative example 3 etc.) that improves processing.
Promptly, only the leading section (the front end transition part closely is close to) at such elastic body scraper plate of present embodiment descends tan Δ temperature, in other words, the improvement that uprises of bounce-back elasticity is handled, can make cleaning balde high durable and spatter property and two aspects be improved simultaneously.
In addition, the design conditions of cleaning balde (with the contact method of photoreceptor) etc. there is no need change, so favourable to cost degradation.
In the present embodiment, form the example of device for so-called black white image.But colored image processing system also can.Below, form with regard to coloured image that Games that device is suitable for the unique point of present embodiment closes
Concrete example describes.
Fig. 5 is the figure that in the full-colour image formation device of so-called tandem type the present invention is suitable for.
In Fig. 5, (3Y 3K) is the photoreceptor 3C of drum type, 3M, 3Y to symbol for 3C, 3M, 3K, they dispose Bands electric installation 4C, 4M, 4Y, 4K, developing apparatus 5C in the direction of the clock at least along the revolution of the direction of arrow among the figure around it, 5M, 5Y, 5K, cleaning device 6C, 6M, 6Y, 6K.
From this Bands electric installation 4C, 4M, 4Y, 4K and developing apparatus 5C, 5M, 5Y, the photoreceptor of 5K Zhi Inter the inside side, the exposure device of not expressing among the figure is laser LC, LM, LY, the LK irradiation, at photoreceptor 3C, 3M, 3Y, the last formation of 3K electrostatic latent image.Then, with photoreceptor 3C, 3M, 3Y, 3K are 4 cartridge processing 1C at center, 1M, and 1Y, 1K disposes side by side along the transfer printing moving belt 14 that transports means as the transfer printing material.Transfer printing moving belt 14 and each cartridge processing 1C, 1M, 1Y, the developing apparatus 5C of 1K, 5M, 5Y, 5K and cleaning device 6C, 6M, 6Y, photoreceptor 3C between the 6K, 3M, 3Y, 3K contact, the surface of contact (the inside) of the inboard on the sensitization side of transfer printing moving belt 14 has the transfer device 7C of the transfer bias of being applied with, 7M, 7Y, 7K.Each cartridge processing 1C, 1M, 1Y, 1K is except the color difference of the toner of developing apparatus inside, and other are identical.
In the color electronography image processing system of the structure that Fig. 5 represents, it is as follows that image forms action.At first, each cartridge processing 1C, 1M, 1Y, among the 1K, photoreceptor 3C, 3M, 3Y, the 3K quilt is rotating Bands electric installation 4C in the direction of arrows, 4M, 4Y, 4K Bands, the then laser LC of the exposure device (not expressing among the figure) of the inboard of photoreceptor configuration, LM, LY, LK makes corresponding image of all kinds and forms electrostatic latent image.
Then, developing apparatus 5C, 5M, 5Y, 5K makes image development, becomes the toner picture.Developing apparatus 5C, 5M, 5Y, 5K is respectively with C (dark green), M (magenta), Y (Huang), the developing apparatus that the toner of K (deceiving) develops, at 4 each photoreceptor 3C, 3M, 3Y, the toner picture of all kinds of the last formation of 3K is overlapping on transfer paper.
Transfer paper P has paper supply to roll 15 to send from the paper storehouse, in a single day stops at last registration roller 12 and following registration roller 13, is harmonious with opportunity of image formation on the described photoreceptor, is transferred moving belt 14 and sends here.The transfer paper P that keeps on the transfer printing moving belt 14 is by conveyance, at each photoreceptor 3C, and 3M, 3Y, the contact position of 3K (transfer printing portion), each colour toners looks like to carry out transfer printing.
Toner picture on the photoreceptor, by being applied to transfer device 7C, 7M, 7Y, the transfer bias of 7K and with photoreceptor 3C, 3M, 3Y, 3K and the electric field that forms of potential difference (PD), be transferred on the transfer paper P.By 4 transfer printing portion, the toner of 4 looks is sent to fixing device 16 as overlapping recording chart P then, and toner fixing is discharged to the row's paper portion that does not express among the figure.In addition, transfer printing portion is each photoreceptor 3C of transfer printing not, 3M, 3Y, the last remaining remaining toner of the 3K device 6C that is cleaned, and 6M, 6Y, 6K reclaims.In addition, in the example of Fig. 5, image formation unit from transfer paper carriage direction upstream side to downstream side, C (dark green), M (magenta), Y (Huang), the series arrangement of K (deceiving), but be not limited to this order, look Cis can set arbitrarily.
In addition, among Fig. 5,, suitable slit (10-200 μ m degree) is arranged between the two though the Bands electric installation contacts with photoreceptor, thus, when both abrasion amounts lower, Bands electricity parts the toner conjunctiva also few.
The color printer of the present embodiment that Fig. 5 represents has each cartridge processing 1C, 1M, and 1Y, the cleaning device 6C of 1K, 6M, 6Y among the 6K, is provided with following cleaning balde.Promptly, this cleaning balde contacts with the surface of the parts that are cleaned, from the surface of these parts that are cleaned powder is removed, it is characterized in that, this cleaning balde comprises the rectangular elastic body scraper plate that elastomeric material constitutes, cover this rectangle elastic body and scrape the front edge of board transition part, the superficial layer also harder than this elastic body, this is elastomeric nearby by degenerative treatments, makes from this front end to hang down 3 ℃ to 7 degree to the elastomeric interior 5mm of survey with tan Δ peak temperature the interior zone and the tan Δ peak value that does not carry out improved zone.
The color printer of present embodiment, owing to have described structure, can restrain the generation of the unusual sound of vibrations sound etc., the front end transition part of cleaning balde does not curl, can the good spatter property of long term maintenance, can restrain the bad generation of cleaning on the photoreceptor 3 for a long time.
Below, the present invention is applicable to that another embodiment of electrophotographic printer as image processing system (below, claim printer) describes.In addition, the printer of the basic structure of the printer of present embodiment and above-mentioned embodiment is basic identical, in this description will be omitted.
Then, the confirmatory experiment to the long-term spatter property of checking cleaning balde and the generation of vibrations sound etc. describes.In this confirmatory experiment, the material of elastic body scraper plate, the composition of the impregnant of usefulness is handled in the improvement of the leading section of elastic body scraper plate (the front end transition part closely is close to), and the material of the superficial layer of the front end transition part of covering elastic body scraper plate has been carried out various variations, has carried out durability experiment.
[elastic body scraper plate]
As elastic body scraper plate 622, use 25[℃] rerum natura be 4 kinds of following urethane rubbers.
| Urethane rubber | Hardness (degree) | Bounce-back elastic modulus (%) | Manufacturing firm |
| ??8 | ??70 | ??50 | Japan rubber industrial group |
| ??9 | ??71 | ??18 | Japan rubber industrial group |
| ??10 | ??75 | ??50 | Japan rubber industrial group |
| ??11 | ??77 | ??17 | (Xin Jiteku (シ Application ジ one テ Star Network) system) |
The hardness of urethane rubber is made sclerometer with Shimadzu Seisakusho Ltd., measures by JIS K6253.Make sample and about 2[mm] sheet material overlapping, making its thickness is 6[mm] more than.
The bounce-back elasticity of urethane rubber is to make made no .221 rebound test instrument with the smart mechanism of Japan, measures by JIS K6255.With sample and about 2[mm] tablet superimposed, the thickness that makes them is 4[mm] more than.
[impregnant]
As impregnant, with following thing.
Impregnant 11-14 is as follows:
Superficial layer 8-11 has following composition.
Below, the structure of the image processing system that carries out confirmatory experiment is described.
Use any of described urethane rubber 8-11, make thick 2[mm] the elastic body scraper plate of rectangular shape, in the leading section 5mm with this elastic body scraper plate, be immersed in any of impregnant 1-14 10 fens, thereafter, the elastic body scraper plate is put into temperature adjustment to 100[℃] calibration cell in 10 minutes, the isocyanates that contains in urethane rubber and the impregnant reacts, to described leading section 5[mm] handle with interior.In addition, as isocyanates, MDI, HDI equimolecular quantity being easy to below 500 flooded, and is preferred thing.
Then, the improvement of the leading section of elastic body scraper plate scope in ultraviolet curable resin coating, make any thickness of superficial layer 8-11 become 10[μ m].Specifically, to the elastic body scraper plate of forming by various urethane rubbers, from 2 direction 10[mm/s of scraper plate face and front end face] the fog gun translational speed carry out 2 coatings, after 3 minutes dryings, with ultraviolet exposure (140[W/cm] * 5[m/min] * 5 times).But, advise with Masking strip below the scraper plate and put, at front end 3[mm] and the amplitude degree, form superficial layer.
Glue receipts or other documents in duplicate unit molecular weight during the ultraviolet curable resin polymerization is that the urethane acrylate of 300-1500 is preferred, and described molecular weight 1000-1500 more preferably.
The elastic body scraper plate that has formed such superficial layer is bonded on the sheet metal support that can be contained on the colored compounding machine imagio of the Ricoh's system Neo C455 with cementing agent, makes and study cleaning balde.Making is studied cleaning balde be installed in the colored compounding machine imagioNeo C455 (structure same) of Ricoh's system, make embodiment 6-10, the image processing system of comparative example 4-6 with Fig. 2.In addition, cleaning balde is installed will be made line pressure: 20[g/cm], cleaning angle: 79 degree.
In confirmatory experiment, used polymerization to make the toner of system.In addition, the rerum natura of toner is as follows.
Toner parent: circularity 0.98, mean grain size 4.9[μ m]
Additive: small particle diameter silica 1 .5 part (Larry, storehouse An Te (Network ラ リ ア Application ト) makes H2000)
0.5 part of small particle diameter titanium dioxide (too with card (テ イ カ) system MT-150AI)
Big particle diameter silica 1 .0 part (electrochemical industry system UFP-30H)
Confirmatory experiment is estimated environment: 20[℃] 65[%RH], actual print conditions: image area rate 5[%] and pattern, 3 printings/time, print 500,000 pieces (A4 horizontal strokes) altogether.Then, following project is estimated.
[assessment item]
Clean bad generation: have or not (image area ratio 5[%] pattern output visualization)
Scrape front edge of board abrasion area: the abrasion area that side is seen below scraper plate
In addition, the mensuration of the bed thickness of superficial layer is by measuring the section that is coated with the elastic body scraper plate that makes in addition equally with system Ma Yiku Lao Sikaopu (the マ イ Network ロ ス コ one) VHX-100 of department (キ one エ Application ス) that shows mercy.Sample cuts out section advance EM system SEM sample production with name paddy (ト リ ミ Application グ) blades in the great waves with day.
In addition, the mensuration of the tan Δ peak temperature of elastic body scraper plate and superficial layer etc. is undertaken by old JIS-K7198.
The result of embodiment 23-27 and comparative example 11-13 is illustrated in down in the tabulation.
Table 2-1
| Embodiment | Urethane rubber | Impregnant | |
| Embodiment | |||
| 23 | ??9 | ??11 | ??8 |
| Embodiment 24 | ??9 | ??12 | ??10 |
| Embodiment 25 | ??10 | ??14 | ??11 |
| Embodiment 26 | ??11 | ??11 | ??8 |
| Embodiment 27 | ??11 | ??13 | ??9 |
| Comparing |
??8 | ??11 | ??- |
| Comparing |
??9 | - | - |
| Comparing |
??10 | - | 8 |
Table 2-2
| Embodiment | The Tan Δ peak temperature of urethane rubber (℃) | The Tan Δ peak temperature of improvement end (℃) | The Tan Δ peak temperature of superficial layer (℃) | Thickness (μ m) apart from the superficial layer in front end 50 μ m places |
| |
??-6 | ??-11 | ??60 | ??10 |
| Embodiment 24 | ??-6 | ??-11 | ??50 | ??10 |
| Embodiment 25 | ??-6 | ??-9 | ??50 | ??10 |
| Embodiment 26 | ??+5 | ??-9 | ??60 | ??10 |
| Embodiment 27 | ??+5 | ??-13 | ??45 | ??10 |
| Comparing |
??-19 | ??-20 | ??- | ??- |
| Comparing |
??-6 | ???- | ??- | ??- |
| Comparing |
??-18 | ???- | ??60 | ??10 |
Table 2-3
| Embodiment | The amplitude (μ m) of 500,000 image output back abrasion | Cleanliness | Noise beastly | The abrasion of front end and |
| Embodiment | ||||
| 23 | ??100 | Good | Do not have | Do not have |
| Embodiment 24 | ??50 | Good | Do not have | Do not have |
| Embodiment 25 | ??100 | Good | Do not have | Do not have |
| Embodiment 26 | ??50 | Good | Do not have | Do not have |
| Embodiment 27 | ??75 | Good | Do not have | Do not have |
| Comparing |
??400 | Band-shape cleans bad 2 places | Do not have | |
| Comparing embodiment | ||||
| 12 | ??300 | Muscle-shape cleans bad 2 places | Do not have | |
| Comparing embodiment | ||||
| 13 | ??250 | Band-shape cleans bad 2 places | Have | Do not have |
The improvement that tan Δ temperature that the front end transition part closely is close to is descended handle in comparative example 13, it is bad that Bands shape cleaning has taken place, and also confirmed vibrations sound beastly in addition.In addition, observed front end transition part damaged of cleaning balde.This is, for a long time make superficial layer that abrasion take place, and disappear, when the front end transition part of elastic scraper exposes, the all tan Δ temperature of cleaning balde is low, in other words, and the bounce-back elasticity height that cleaning balde is all, the microvibration of the part that this exposes excessive the result that becomes, thus vibrations sound beastly has taken place.In addition, the exposed portions serve of elastic scraper is curled, and this exposed portions serve of curling owes, thereby can observe the shortcoming of the front end transition part of cleaning balde.Because this shortcoming has caused the bad generation of cleaning of Bands shape.
In addition, as comparative example 11 expressions, even handle in the improvement that the front end transition part descends tan Δ temperature, because the superficial layer of front end transition part is not set, promptly allow to excessive and the unusual sound vibrations sound that takes place etc. are restrained to the microvibration of front end transition part, the local abrasion of front end face also can take place, thereby the cleaning that strip takes place is bad.
On the other hand, at embodiment 23-27, vibrations sound beastly is not identified.In addition, the superficial layer of front end transition part is disappeared by abrasion, and the front end transition part of elastic body scraper plate does not expose.So, although the elastic body scraper plate contacts with photoreceptor, the cleaning that does not also confirm local abrasion of front end face and Bands shape strip is bad.This is because of the superficial layer at photoreceptor moving direction downstream side, has restrained the distortion of front end transition part on the photoreceptor moving direction of the elastic body scraper plate that exposes.
In embodiment 23-27, vibrations sound beastly does not take place, the local abrasion of front end face does not take place, maintenance can good for a long time spatter property.
Promptly, as present embodiment, the tan Δ temperature of the leading section (the front end transition part closely is close to) of elastic body scraper plate is descended, in other words, the improvement that uprises of bounce-back elastic modulus is handled, just can make cleaning balde high durable and spatter property and two sides be improved simultaneously.In addition, improve processing by dipping, the elastic body scraper plate can reach than using not flood and improve the long life-span more than 2 times of the common elastic body scraper plate of handling (comparative example 12 and comparative example 13) from the cleaning balde of the abrasion speed step-down (embodiment 22-27) of body.
In addition, high 40[℃ of the tan Δ peak temperature that tan Δ peak temperature by making superficial layer is handled than the improvement of not carrying out the elastic body scraper plate] more than, can obtain preventing making the sufficient mechanical property of curl (drawing in) of the front end transition part of elastic body scraper plate.
In addition, also there is no need to make necessity of the changes such as design conditions (with the contact method of photoreceptor) of cleaning balde, thus can cost degradation.
Hereto, be illustrated with regard to the example of the image processing system of so-called black and white, but colored image processing system too.
Each cartridge processing 1C that color printer had of the present embodiment that Fig. 5 represents, 1M, 1Y, the cleaning device 6C of 1K, 6M, 6Y, among the 6K, be provided with following such cleaning balde, promptly, the elastic body scraper plate of the rectangular shape that this cleaning balde is formed by elastomeric material and, has the front end transition part that covers the elastic body scraper plate, the superficial layer harder than elastic body scraper plate constitutes, the front end transition part of elastic body scraper plate closely is close to have carried out improving to be handled, leave the inboard 5[mm of front end transition part elastic body scraper plate] with interior place than low 3[℃ of the tan Δ peak temperature that tan Δ peak temperature is not carried out the place that described improvement handles] to 7[℃], further, the tan Δ peak temperature of the superficial layer of the covering end harder than rubber flap is than high 40[℃ of the tan Δ peak temperature in the place of the improvement processing of not carrying out the elastic body scraper plate] more than.
The color printer of present embodiment, has described structure, thus, even improve the line pressure of the cleaning balde that can clean polymerization toner, also can restrain the generation of the unusual sound of vibrations sound etc., curling of the front end transition part of portion's generation cleaning balde can be kept long-term good spatter property, thereby restrains the bad generation of cleaning on photoreceptor 3 for a long time.
According to each embodiment, contact with the surface of photoreceptor 3 as the parts that are cleaned, the cleaning balde of the powder toner being removed from photosensitive surface 62, the elastic body scraper plate 622 of the rectangular shape of forming by rubber and, with such formation that the front end transition part 62c of elastic body scraper plate 622 covers, hardness ratio elastic body scraper plate 622 is also wanted hard superficial layer 623 and structure.The front end transition part of elastic body scraper plate 622 closely is close to have carried out improving to be handled, the inboard 5[mm from front end transition part 62c to the elastic body scraper plate] to be hanged down 3[℃ with the tan Δ peak temperature in interior place by the described tan Δ peak temperature that does not improve the place of handling] to 7[℃], thus, as described confirmatory experiment clear and definite, promptly can restrain the generation of unusual sound, can keep long-term good spatter property again.
In addition, according to each embodiment, the tan Δ peak temperature of described elastomeric material is-6[℃] and above for preferred.
In addition, according to the present invention, in the elastic body scraper plate 622, the tan Δ peak temperature that will not carry out the place that described improvement handles is as t1, the tan Δ peak temperature of superficial layer 623 is during as t2, the relation of t2 〉=t1+40 is set up, and can give the sufficient mechanical property of the front end transition part 62c that prevents elastic body scraper plate 622 curl (drawing in) thus.
In addition, according to each embodiment, as described elastomeric material owing to use elastomeric material with urethane groups, even photoreceptor off-centre etc. can be carried out soft cleaning balde distortion, can keep thus fixed contact press, obtain good spatter property.
In addition, according to each embodiment, (leading section of elastic body scraper plate) closely is close in described improvement processing at the front end transition part, with being selected from isocyanate compound, fluorine compounds, at least a kind of silicone compounds is carried out dip treating, thus, the friction factor of the front end transition part of elastic body scraper plate is dropped to below 0.5.
In addition, according to each embodiment, the number-average molecular weight that is used for the described isocyanate compound that described improvement handles is serving as preferred below 500.
In addition, such as described according to each embodiment, the JIS-A hardness of described elastomeric material is with 65[°] above 80[°] following serve as preferred.
In addition, according to each embodiment, the bounce-back elastic modulus of described elastomeric material is with 80[%] following serve as preferred.
In addition, according to each embodiment, superficial layer 623 uses ultraviolet curable resins, heat reactive resin, or fluorine class heat reactive resin forms, and just can be easily at the front end transition part 62c of elastic body scraper plate 622 formation superficial layer 623.
In addition, according to each embodiment,,, can make superficial layer 623 have the hardness of appropriateness by the ultraviolet curable resin that uses per 1 glue receipts or other documents in duplicate unit to have the number-average molecular weight of 300-1500 as described ultraviolet curable resin.Thus, curling of front end transition part 62c can be inhibited.In addition, can carry out the appropriateness distortion, can in the generation of restraining the vibrations sound, make the antifriction consumption of superficial layer 623 become good thus to the photoreceptor moving direction.
In addition, according to each embodiment, in image processing system, by with the not transfer printing residual toner of described cleaning balde 62 with photosensitive surface, can the long term maintenance high quality images.
In addition, according to each embodiment,, form integrative-structure with described cleaning balde 62, thereby can obtain the good cartridge processing of spatter property as cartridge processing 1.
Claims (11)
1. cleaning balde, its surface with the parts that are cleaned contacts, and goes up from this surface that is cleaned powder is removed, it is characterized in that,
Have the elastic body scraper plate, the friction factor of the front end transition part of this elastic body scraper plate is below 0.5, and
Have the superficial layer that the front end transition part that covers described elastic body scraper plate covers, the bed thickness of this superficial layer at distance elastic body front end 50 μ m places is more than the 1 μ m below the 50 μ m, and this superficial layer is harder than described elastic body scraper plate.
2. according to the cleaning balde of claim 1, it is characterized in that from survey in the elastic body scraper plate apart from this front end 5mm with the tan Δ peak temperature in the interior zone than apart from the distance of this elastic body front end greater than low 3 ℃ to 7 ℃ of the tan Δ peak temperature in the zone of 5mm.
3. according to the cleaning balde of claim 2, it is characterized in that, as with as described in elastic scraper apart from the tan Δ spike problem in the zone more than its front end 5mm as T1, the tan Δ peak temperature of described superficial layer as T2, is then satisfied t2 〉=t1+40.
4. according to the cleaning balde of claim 1, it is characterized in that described rubber flap comprises the elastomeric material that contains urethane groups, and JIS-A hardness is more than 65 ° below 80 °, the bounce-back elastic modulus is below 80%.
5. according to the cleaning balde of claim 1, it is a kind of from ultraviolet curable resin to it is characterized in that described superficial layer comprises at least, heat reactive resin or fluorine-containing heat reactive resin a kind of.
6. according to the cleaning balde of claim 5, it is characterized in that it comprises the ultraviolet curable resin that each the glue receipts or other documents in duplicate unit as described ultraviolet curable resin has the number-average molecular weight of 300-1500.
7. according to the cleaning balde of claim 1, it is characterized in that the front end transition part at least a dip treating of having carried out that is selected from isocyanate compound, fluorine compounds, silicone compounds of described elastic body scraper plate.
8. according to the cleaning balde of claim 7, the number-average molecular weight that it is characterized in that carrying out the isocyanate compound that described dip treating uses is below 500.
9. an image processing system comprises
Image carrier;
Make the charging device of this image carrier surface charging;
Make the electrostatic latent image of the surface formation electrostatic latent image of charged image carrier form device;
The electrostatic latent image development that forms on this image carrier surface is formed the developing apparatus of toner image;
The lip-deep toner image of this image carrier is transferred to transfer device on the transfer article; And
Contact with the surface of this image carrier, the cleaning balde that will remove attached to the lip-deep residual toner of this image carrier is characterized in that having used the cleaning balde of claim 1 as this cleaning balde.
10. a cartridge processing comprises
Image carrier;
And have by contact the cleaning device of the cleaning balde that the toner that will remain in the image carrier surface removes with image carrier surface, it is easy to dismounting to image processing system, it is characterized in that described cleaning balde, is the cleaning balde of claim 1.
11. an image forming method comprises
Surface at image carrier forms toner image;
This toner image is transferred on the transfer article from the supporting body surface;
To remove attached to the lip-deep residual toner of this image carrier with cleaning balde, and it is characterized in that described cleaning balde, be the cleaning balde of claim 1.
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| JP2008-155454 | 2008-06-13 | ||
| JP2008155454 | 2008-06-13 | ||
| JP2008155454 | 2008-06-13 | ||
| JP2008304279 | 2008-11-28 | ||
| JP2008304279 | 2008-11-28 | ||
| JP2008-304279 | 2008-11-28 |
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| CN2009101459803A Expired - Fee Related CN101604138B (en) | 2008-06-13 | 2009-06-15 | Cleaning blade and image forming apparatus, process cartridge, and image forming method using the same |
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