JP2000263800A - Ink jet recording apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To certainly remove a pigment component from a wiper member while certainly holding a liquid component without scaling up the whole of the subject apparatus. SOLUTION: A cleaner 30 is arranged in adjacent relation to the moving direction of a recording head 18 emitting pigment ink in a carriage 16 and the blade 38 of a wiper member 36 removes a pigment component from the ink emitting surface 18A of the recording head 18 at first by the movement of the carriage 16. The pigment component bonded to the blade 38 is removed by the cleaning surface 30A of the cleaner 30. The cleaning surface 30A is formed so as to have the surface roughness corresponding to the physical properties of ink to certainly scrape off the pigment component from the blade 38. Since the cleaning surface is formed from a porous member, it can hold the pigment component (liquid component) certainly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an ink jet recording apparatus, and more particularly, to an ink jet recording apparatus provided with a wiper member cleaning mechanism for removing dirt from a recording head for discharging a pigment-based ink.

[0002]

2. Description of the Related Art Conventionally, in an ink jet recording apparatus, in order to maintain printing accuracy, a stain on an ink ejection surface is removed by sliding a flexible blade of a wiper member against an ink ejection surface of a recording head. ing.

However, if the wiper member is used again with the dirt adhered to the blade, the dirt may adhere to the recording head. Therefore, the blade of the wiper member is brought into sliding contact with a cleaning member (hereinafter referred to as a cleaner) immediately after cleaning the ink ejection surface to remove dirt from the blade.

[0004] Ink jet recording apparatuses include a type in which a cleaner is disposed on the recording head side and a type in which a cleaner is disposed outside the printing area on the recording apparatus (platen) side.

An ink jet recording apparatus having a cleaner disposed on the recording head side can reduce the size of the apparatus itself. By disposing the apparatus on a carriage on which the recording head is mounted, it is possible to interlock with the cleaning of the recording head. As a result, the wiper is cleaned, so that the sequence is simplified. However, since the ink cartridge is provided on the carriage, there is a possibility that the ink may drop from the cleaner onto the recording paper during printing. For this reason, the cleaner needs to have the ability to hold the liquid component.

On the other hand, an ink jet recording apparatus in which a cleaner is disposed on the recording apparatus side has a problem that the apparatus becomes large and the sequence becomes complicated. However, since the cleaner has a large capacity to hold dirty ink, printing is performed. There is little concern that dirt adheres to the surface, and reliability is high.

[0007] Of the above two types, in an ink jet recording apparatus of the type in which a cleaner is provided on the recording head side and dirt on a plurality of recording heads is removed by one wiper member, the recording head and the cleaner are alternately provided on the carriage. Are located. Therefore, the wiper member alternately slides on the recording head and the cleaner by the movement of the carriage. As a result, the wiper member is cleaned by the cleaner every time the recording head is cleaned. Therefore, dirt does not adhere to the recording head via the wiper member.

FIG. 6 shows a specific example. Carriage 10
At 0, a recording head 102 for black ink, a recording head 104 for color ink, and cleaners 106 and 108 are disposed adjacent to the recording heads 102 and 104 along the moving direction of the carriage 100, respectively.

On the other hand, a wiper member 110 is provided on the main body side.

When the carriage 100 moves to the left in the drawing, the ejection surface 102A of the recording head 102 is moved.
Then, the flexible blade 112 of the wiper member 110 comes into sliding contact with the surface, thereby removing dirt on the discharge surface 102A. Blade 11
2 is the cleaning surface 106A of the cleaner 106
, The dirt attached to the blade 112 moves to the cleaner 106. In addition, blade 1
Reference numeral 12 satisfactorily removes dirt from the recording head 104. Note that dirt attached to the blade 112 from the recording head 104 is removed by the cleaner 108.

In this conventional example, the recording head 102,
Dye ink is used for 104, and cleaners 106, 1
For 08, a porous material is used. This is because it is difficult to absorb and hold the stained dye ink unless the cleaners 106 and 108 are porous materials.

As the ink, there is a pigment ink other than the dye ink. In this case, the structure of the cleaner is also different due to the difference in the physical properties of the ink. Usually, the cleaner is a plate-shaped member made of plastic (hereinafter, referred to as a plastic member)
Scraper). This is to effectively scrape pigment ink having higher granularity (easy to solidify) than the dye ink attached to the wiper member from the wiper member. However, the holding ability of the liquid component is inferior to that of the porous body.

[0013]

In recent years, pigment inks are superior in terms of character image quality as compared with dye inks. Therefore, it is desired to use pigment inks as black inks. When using pigment ink, it is customary to employ a scraper as a cleaner as described above.However, when the ink is disposed on the recording head side, the liquid component drips onto the printing surface due to its low ability to retain the liquid component. There was an inconvenience of falling down. In addition, if the scraper is provided on the main body side, the above disadvantage can be solved. However, there are disadvantages such as a complicated cleaning sequence and an increase in the size of the apparatus.

When a pigment ink is used in an ink jet recording apparatus provided with a cleaner made of a porous material, the pigment component is solidified on the surface of the porous material (hereinafter referred to as a cleaning surface) with which the wiper member contacts. The liquid adheres and prevents the liquid component from being sucked into the porous body, thereby impairing the ability of the porous body to hold the liquid component. As a result, the cleaner cannot satisfactorily remove dirt from the wiper member, and the dirty wiper member comes into sliding contact with the recording head. As a result, ink ejection failure or ejection failure occurs in the recording head. That is, there is an inconvenience that the life of the recording head is shortened (in an ink jet recording apparatus, the printing amount until the occurrence of ejection failure is reduced to about 1/3 as compared with the case where dye ink is used).

When a pigment ink is used for the black ink and a dye ink is used for the color (yellow, magenta, cyan) ink, the use of a porous material for the cleaner has the above disadvantages, and the pigment component is reduced. Attaching to the discharge surface of the recording head that discharges the dye ink through the wiper member greatly increases the deposition rate of the pigment component, or increases the amount of solidified product, thereby further shortening the life of the recording head. there were.

Further, when a scraper is used as the cleaner, the cleaning ability of the pigment ink is improved, but the cleaning ability of the dye ink is reduced because the ink is not held by suction like a porous body. In addition, since the liquid component has a lower ability to retain the liquid component than the porous body, there is a possibility that the liquid component drops from the cleaner to the printing surface.

Therefore, when a recording head that discharges pigment ink and a recording head that discharges dye ink are used in combination, a wiper member and a cleaner (scrubber) for pigment ink, and a wiper member and cleaner (porous material) for dye ink are used. Parts) must be provided separately, and there are inconveniences such as an increase in the number of parts and an increase in cost.

The present invention has been made to solve the above-mentioned disadvantages, and provides an ink jet recording apparatus capable of reliably removing a pigment component from a wiper member without increasing the size of the apparatus, and capable of retaining a liquid component. With the goal.

[0019]

To achieve the above object, the present invention provides a carriage which moves in a main scanning direction intersecting the sub-scanning direction with respect to a recording medium conveyed in the sub-scanning direction; A recording head that ejects ink from an ejection port formed on an ink ejection surface with respect to the recording medium; and a recording head that is arranged on the carriage and is adjacent to the recording head along a moving direction of the carriage. A cleaner member made of a porous body provided, and a flexible wiper member disposed on the main body side facing the carriage and slidingly contacting the ink ejection surface and the cleaner member by movement of the carriage in a non-printing area. Wherein the surface roughness of the cleaning surface of the cleaner member with which the wiper member slides is set according to the physical properties of the ink. And said that you are.

With this configuration, the recording head is cleaned by the carriage passing over the wiper member disposed on the main body side. The flexible wiper member removes stains on the ink ejection surface by first sliding on the ink ejection surface of the recording head. Subsequently, the dirt is removed by the cleaner member by sliding the wiper member against the cleaning surface of the cleaner member. At this time, the cleaning surface has a surface roughness set according to the physical properties of the ink (for example, if the ink viscosity is 1.5
If ｍ5.0 mPa · s, Ra ≧ 18 μm and Rm
ax ≧ 150 μm), so that the pigment-based component can be reliably removed (scraped) from the wiper member. In addition, the cleaning surface has an increased surface area as compared with a smooth surface. Therefore, even if the pigment-based component is slightly solidified on the cleaning surface, the cleaning surface on which the solidified pigment-based component is not adhered is sufficiently secured. Can be

That is, by making the cleaning surface have a surface roughness corresponding to the physical properties of the pigment-based ink, the pigment-based ink can be scraped off and the porous body can be scraped while taking advantage of the high ability of the porous body to retain the liquid component. Liquid components can penetrate inside.

Further, the present invention provides a carriage which moves in a main scanning direction intersecting with the sub-scanning direction with respect to a recording medium conveyed in the sub-scanning direction, and which is disposed on the carriage and which is provided with an ink with respect to the recording medium. A recording head that discharges ink from discharge ports formed on a discharge surface, and a cleaner member that is disposed on the carriage and that is made of a porous body and that is disposed adjacent to the recording head along a moving direction of the carriage. And a flexible wiper member disposed on the main body side facing the carriage and slidingly contacting the ink ejection surface and the cleaner member by movement of the carriage in a non-printing area, wherein the flexible wiper member slides on the wiper member. The cleaning surface of the cleaner member is provided with a groove extending in a direction intersecting the moving direction of the carriage. That.

With this configuration, the recording head is first cleaned by the carriage passing over the wiper member arranged on the main body side. That is, the dirt on the ink ejection surface is removed by the sliding of the flexible wiper member on the ink ejection surface of the recording head. Subsequently, the dirt is removed by the cleaner member by sliding the wiper member against the cleaning surface of the cleaner member. At this time, the wiper member comes into sliding contact with the cleaning surface after hitting the corner of the cleaner member, and again comes into contact with the corner of the groove and comes into sliding contact with the cleaning surface. Accordingly, the cleaner member scrapes the dirt (pigment-based component) of the wiper member twice with the corners in the same manner as the scraper, so that the dirt attached to the surface of the wiper member can be satisfactorily removed. Also, the cleaner member is
Since the grooves are provided, the surface area of the cleaning surface increases. Therefore, even if solidified pigment-based components adhere to the cleaning surface, the liquid component (pigment-based ink) is satisfactorily sucked.

Further, according to the present invention, there is provided a carriage which moves in a main scanning direction intersecting the sub-scanning direction with respect to a recording medium conveyed in the sub-scanning direction;
A recording head that ejects ink from an ejection port formed on an ink ejection surface with respect to the recording medium; and a recording head that is disposed on the carriage and is disposed adjacent to the recording head along a moving direction of the carriage. A cleaner member made of a porous material and a main body side facing the carriage,
A flexible wiper member slidably contacting the ink ejection surface and the cleaner member by movement of the carriage in a non-printing area, wherein the cleaning surface of the cleaner member slidably contacted by the wiper member is higher than the ink ejection surface of the recording head. Are also provided so as to protrude toward the wiper member.

With this configuration, the recording head is first cleaned by the carriage passing over the wiper member disposed on the main body side. That is, the dirt on the ink ejection surface is removed by the sliding of the flexible wiper member on the ink ejection surface of the recording head. Subsequently, the dirt is removed by the cleaner member by sliding the wiper member against the cleaning surface of the cleaner member. At this time, since the cleaner member is disposed so as to protrude further toward the wiper member than the ink discharge surface of the recording head, the wiper member is brought into strong sliding contact with the side surface of the cleaner member, and the side surface side is scraped with the pigment component. Taken. As a result, the amount of the pigment component adhering to the cleaning surface of the cleaner member is suppressed, and the cleaning surface on which the solidified pigment component does not adhere is sufficiently ensured. As a result, the pigment ink (liquid component) is sucked into the porous body (cleaner member) and is reliably held.

It should be noted that the present invention relates to an ink jet recording apparatus having a recording head for discharging a pigment-based ink and a recording head for discharging a dye-based ink. Are alternately arranged.

In such a configuration, the cleaner member according to the present invention merely changes the shape of the cleaning surface of the porous body or the arrangement of the members, so that the stain on the wiper member to which the dye-based ink has adhered is reliably sucked. Can be held inside the porous body. Accordingly, it is possible to clean the ink ejection surface of each recording head that ejects pigment-based ink and dye-based ink with one wiper member, and furthermore, the pigment-based component or dye-based component adhered to the wiper member by the same cleaner member. , And each liquid component can be sucked into the porous body and held. Therefore, the pigment-based component and the dye-based component are mixed on the recording head via the wiper member, and the solidification of the pigment-based component does not proceed, so that the recording head does not have a discharge failure.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an ink jet recording apparatus according to a first embodiment of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 2, the ink jet recording apparatus 10 has a main scanning direction (arrow) intersecting the sheet conveyance direction (sub-scanning direction, arrow A direction) above the sheet conveyed by the conveyance roller 12. A carriage 16 that is movable in the direction B is disposed. The carriage 16
The recording head 18 discharges black pigment ink toward paper, and the recording head 20 discharges yellow, magenta, and cyan dye inks toward paper.

Below the carriage 16 (on the platen side), a recording head 18, a cleaner 30, a recording head 20, and a cleaner 32 are arranged in the main scanning direction, as shown in FIG. A plurality of nozzle holes 34 for discharging ink are formed on the ink discharge surfaces 18A and 20A of the recording heads 18 and 20 in a line in a direction orthogonal to the main scanning direction.

The cleaning surface 3 of the cleaner 30
0A is the physical property of the pigment ink (ink viscosity 1.5 to 5.0).
mPa · s) (Ra = 18)
μm and Rmax = 150 μm). The cleaner 32 has the same configuration. As a method of forming the cleaning surfaces 30A and 32A in this manner,
Roughening the mold surface, or cleaning surface 30A,
A method of roughly treating the surface of 32A with a file or a solvent is considered.

As shown in FIG. 1B, the positions of the cleaning surfaces 30A and 32A of the cleaners 30 and 32 are 0.3 m more than the ink ejection surfaces 18A and 20A.
The distance m from the platen surface 50 is larger.

At the end of the ink jet recording apparatus 10 in the main scanning direction, there is a place (hereinafter referred to as a home position) 24 where the carriage 16 (recording heads 18 and 20) is located when printing is not performed. A cleaning mechanism 26 is provided at the boundary of.

The cleaning mechanism 26 includes the wiper member 3
6, a flexible blade 38 formed of a rubber member having ink resistance protrudes toward the recording head only when the recording heads 18, 20 and the like are cleaned.
8 and 20 are in sliding contact with the ink ejection surfaces 18A and 20A.

The operation of the thus configured ink jet recording apparatus will be described.

When the printing is completed, the cleaning mechanism 2
6 is activated, and the wiper member 36 is activated.
The (blade 38) protrudes toward the recording head. As a result, when the recording heads 18 and 20 move to the home positions, the blades 38 can slide on the ink ejection surfaces 18A and 20A of the recording heads 18 and 20.

On the other hand, when the carriage 16 moves from the print area to the home position 24, the carriage 1
6, the ink ejection surfaces 1 of the recording heads 18 and 20
8A, 20A and the cleaning surfaces 30A, 32A of the cleaners 30, 32 are sequentially arranged on the blade 3 of the wiper member 36.
8 comes into sliding contact.

First, the blade 38 of the wiper member 36 slidably contacts the ink ejection surface 18A of the recording head 18, thereby removing stains including pigment ink from the ink ejection surface 18A.

Next, the blade 38 slides on the cleaning surface 30A of the cleaner 30. At this time, the surface roughness of the cleaning surface 30A depends on the physical properties of the ink (ink viscosity of 1.5
~ 5.0 mPa · s) (Ra = 1)
8 μm and Rmax = 150 μm)
Dirt such as pigment ink attached to the blade 38 can be scraped off the surface of the blade 38 and transferred to the cleaning surface 30A. Further, since the cleaning surface 30A is formed sufficiently rough, the surface area of the cleaning surface 30A is sufficiently ensured, and even if a part of the pigment ink is solidified on the surface, the liquid component is made of a porous cleaner. 3
0 can be permeated and retained.

Further, the blade 38 is
Slidably in contact with the ink ejection surface 20A, and removes dye ink and the like from the ink ejection surface 20A.

Finally, when the blade 38 slides on the cleaner 32, the dirt containing the dye ink adhered to the blade 38 is removed from the cleaning surface 32 of the cleaner 32.
A penetrates the inside of the cleaner 32 made of a porous material. As a result, the blade 38 returns to a clean state.

As described above, in the ink jet recording apparatus 10 according to the present embodiment, the cleaner 3 made of a porous material is used.
Since the surface roughness of the cleaning surfaces 30A and 32A of 0 and 32 is set in accordance with the physical properties of the pigment ink, not only can the dye ink be sucked well from the blade 38 but also the pigment ink can be scraped off from the blade 38 well. Can also.
By the way, since the cleaning surfaces 30A and 32A have a sufficient surface area due to the surface roughness, the liquid components are sucked and retained inside the porous body without the cleaning surfaces 30A and 32A being blocked by deposits of the pigment ink or the like. can do. Therefore, the recording heads 18 and 20 can be used for a long time without replacing the cleaners 30 and 32.

Incidentally, the pigment component adhering to the blade 38 cannot be completely removed by the cleaner 30 and the recording head 20
Even if it adheres to the ink ejection surface 20A and solidifies, the amount is small, and by performing preliminary ejection of the recording head 20 at the home position 24, ejection failure can be avoided. Further, the pigment component remaining on the blade 38 is also reliably removed by the cleaner 32.

Next, an ink jet recording apparatus according to a second embodiment of the present invention will be described. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. In the present embodiment, only the cleaner is different from the first embodiment, and only the portion will be described.

Cleaning surface 3 of cleaners 30, 32
A groove 40 having a rectangular cross section extending in a direction orthogonal to the main scanning direction is formed in 0A and 32A (FIGS. 2A and 2B).
reference). As a method of forming the groove 40, a method in which a groove is formed is used, or a method in which a groove is formed on the cleaning surfaces 30A and 32A by cutting or a solvent is considered. The surface roughness of the cleaning surfaces 30A and 32A is Ra = 14 μm.
And Rmax = 100 μm.

The ink jet recording apparatus thus configured has the following operation.

As in the first embodiment, the wiper member 36
Blade 38 is the ink ejection surface 18A of the recording head 18.
Remove the stained pigment ink from. Next, the blade 38 to which the pigment ink has adhered comes into contact with the corner 30B of the cleaner 30, and after the pigment ink is removed (scraped),
The pigment ink comes into sliding contact with the cleaning surface 30A and further comes into contact with the corner 40B of the groove 40, and the pigment ink is scraped off again. As a result, the pigment ink is reliably removed from the blade 38. Further, by forming the groove 40, the surface area of the cleaning surface 30A is sufficiently ensured, and the penetration of the liquid component into the inside of the porous body by the precipitation (solidified) of the pigment component is not hindered.

The dye ink is removed from the ink ejection surface 20A of the recording head 20 by the blade 38 from which the pigment ink has been removed. The dye ink attached to the blade 38 penetrates from the cleaning surface 32A of the cleaning 32 into the porous body and is held.

As described above, in this embodiment, since the grooves 40 are formed in the cleaning surfaces 30A and 32A of the cleaners 30 and 32 in the direction perpendicular to the traveling direction of the carriage 16, the corners 30B of the cleaners 30 and 32, the corners of the grooves are formed. With 40B, the pigment ink can be reliably scraped off. In addition, since the surface area of the cleaning surfaces 30A and 32A is increased by the groove 40, and the surface area of the liquid component that can penetrate is sufficiently secured even by the deposition of the pigment ink, the penetration of the pigment ink or the dye ink into the porous body is achieved. Is not inhibited.

Next, an ink jet recording apparatus according to a third embodiment of the present invention will be described. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. In the present embodiment, only the cleaner is different from the first embodiment, and only the portion will be described.

The cleaning surface 3 of the cleaner 30, 32
0A and 32A are the ink ejection surfaces 1 of the recording heads 18 and 20.
It is arranged on the platen surface 50 side by about 0.5 mm from 8A and 20A (see FIG. 5B). As a method of achieving such an arrangement, a method of changing the size of the cleaners 30 and 32 or using a dispenser can be considered. In the present embodiment, the ink ejection surface 30
A, surface roughness of 32A is Ra = 14 μm and Rmax = 1
00 μm.

The operation of the ink jet recording apparatus according to this embodiment will be described.

As in the first embodiment, the blade 38 removes stains such as pigment ink from the ink ejection surface 18A of the recording head 18. Next, the blade 38 contacts the cleaner 30. At this time, the cleaning surface 3 of the cleaner 30
Since 0A is arranged on the platen surface 50 side by about 0.5 mm from the ink ejection surface 18A of the recording head 18, the blade 38 abuts against the side surface 30C of the cleaner 30, and the pigment component is scraped off. Moreover, since the pigment component is scraped off on the side surface 30C side of the cleaner 30, the amount of the pigment component adhering to the cleaning surface 30A is reduced.
As a result, the penetration (solidification) of the pigment component does not hinder the penetration of the liquid component from the cleaning surfaces 30A and 32A into the porous body.

Next, a test was conducted to confirm the action of the present invention. The test was performed using an ink jet recording apparatus using a dye ink for both the black ink and the color ink described in the conventional example (see FIG. 6). Examples 1-3
Are formed under the conditions shown in the first to third embodiments, respectively. In Comparative Example 1, the surface roughness is Ra = 15 μm and Rmax = 120 μm as in Example 1 (Conventional Example 1).
m. Table 1 shows other test conditions and test results. In the conventional example, when only the dye ink was used, the printing amount until the ejection failure occurred in the recording head was set to 1.0, and the printing amount of another example was displayed in a ratio to the printing amount.

[0055]

[Table 1]

As described above, if the black ink is simply replaced with the pigment ink in the conventional ink jet recording apparatus, the porous body (cleaner) is formed by the precipitation of the pigment ink.
The pigment component precipitates on the cleaning surface of the above and the liquid component does not permeate. As a result, it is considered that the pigment component adhering to the blade adhered to the color recording head, causing ejection failure of the recording head, and the printing amount was reduced to one third as compared with the case where only the dye ink was used. .

On the other hand, in Example 1, the cleaning surface was formed to have a surface roughness (Ra = 18 μm and Rmax = 150 μm) corresponding to the physical properties of the pigment ink (ink viscosity: 1.5 to 5.0 mPa · s). It is considered that the components were surely scraped off from the blade and the ink ejection state was kept good. Although the comparative example is improved as compared with the conventional example, it is considered that an ejection failure occurred due to insufficient surface roughness.

Further, in Examples 2 and 3, it is considered that the pigment component was well removed from the blade, and the ink ejection state was well maintained.

In the series of inventions, the surface roughness is preferably set to a suitable condition. However, the condition of the surface roughness differs depending on the physical properties of the ink and the material of other members.

[0060]

As described above, in the ink jet recording apparatus of the present invention, the wiper is changed by changing the surface roughness, shape or arrangement of the porous cleaning member used for the dye-based ink. The pigment component adhered to the member can be sufficiently scraped off and the liquid component can be permeated and held. Therefore, neither the number of components nor the cost of the ink jet recording apparatus is increased, and the apparatus is not enlarged.

[Brief description of the drawings]

FIG. 1A is a schematic bottom view of a recording head and a cleaner according to a first embodiment of the present invention, and FIG. 1B is a schematic side view showing a relationship between the recording head and a cleaner and a wiper member.

FIG. 2 is a perspective view showing an ink jet recording apparatus according to one embodiment of the present invention.

FIG. 3A is a schematic bottom view of a recording head and a cleaner according to a second embodiment of the present invention, and FIG. 3B is a schematic side view showing the relationship between the recording head, the cleaner and a wiper member.

FIG. 4 is an explanatory view showing an operation of a cleaner according to a second embodiment of the present invention with respect to a wiper member.

FIG. 5A is a schematic bottom view of a recording head and a cleaner according to a third embodiment of the present invention, and FIG. 5B is a schematic side view showing the relationship between the recording head and the cleaner and a wiper member.

FIG. 6A is a schematic bottom view of a recording head and a cleaner according to a conventional example, and FIG. 6B is a schematic side view showing a relationship between the recording head and the cleaner and a wiper member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Ink jet recording apparatus 16 Carriage 18, 20 Recording head 18A, 20A Ink ejection surface 30, 32 Cleaner (cleaner member) 30A, 32A Cleaning surface 36 Wiper member

Claims (5)

[Claims] A carriage that moves in a main scanning direction that intersects the sub-scanning direction with respect to a recording medium that is conveyed in the sub-scanning direction; and is disposed on the carriage and formed on an ink ejection surface with respect to the recording medium. A recording head that ejects ink from the ejected ejection openings, a cleaner member that is disposed on the carriage and that is made of a porous body and is disposed adjacent to the recording head along the moving direction of the carriage, and A flexible wiper member disposed on the opposite main body side and slidably contacting the ink ejection surface and the cleaner member by movement of the carriage in a non-printing area, wherein the cleaning member is slidably contacted with the wiper member. An ink jet recording apparatus, wherein the surface roughness is set according to the physical properties of the ink. 2. A carriage that moves in a main scanning direction that intersects the sub-scanning direction with respect to a recording medium that is conveyed in the sub-scanning direction, and is arranged on the carriage and formed on an ink ejection surface with respect to the recording medium. A recording head that ejects ink from the ejected ejection openings, a cleaner member that is disposed on the carriage and that is made of a porous body and is disposed adjacent to the recording head along the moving direction of the carriage, and A flexible wiper member disposed on the opposite main body side and slidably contacting the ink ejection surface and the cleaner member by movement of the carriage in a non-printing area, and cleaning the cleaner member slidably contacting the wiper member The surface is provided with a groove extending in a direction intersecting the moving direction of the carriage. Tsu door recording device. 3. A carriage that moves in a main scanning direction that intersects the sub-scanning direction with respect to a recording medium that is conveyed in the sub-scanning direction, and is arranged on the carriage and formed on an ink ejection surface with respect to the recording medium. A recording head that ejects ink from the ejected ejection openings, a cleaner member that is disposed on the carriage and that is made of a porous body and is disposed adjacent to the recording head along the moving direction of the carriage, and A flexible wiper member disposed on the opposite main body side and slidably contacting the ink ejection surface and the cleaner member by movement of the carriage in a non-printing area, wherein the cleaning member is slidably contacted with the wiper member. The surface is disposed so as to protrude toward the wiper member from the ink ejection surface of the recording head. That the ink jet recording apparatus. 4. The surface roughness is Ra ≧ 18 μm and Rm
2. The ink jet recording apparatus according to claim 1, wherein ax ≧ 150 μm. 5. A recording head for discharging a pigment-based ink,
2. An ink jet recording apparatus comprising a recording head for discharging a dye-based ink, wherein each recording head and a cleaner member are arranged alternately along a moving direction of a carriage.
The inkjet recording apparatus according to any one of claims 1 to 4, wherein