JP6051709B2 - Treatment liquid application apparatus for ink jet printer and image forming system provided with the same - Google Patents

Description

  The present invention relates to a processing agent solution coating apparatus for an ink jet printer, and more particularly to a configuration of a squeeze roller that pumps the processing agent solution toward the coating roller.

  Ink-jet image forming systems, for example, have problems with initial quality such as ink droplet bleeding, density, color tone, and show-through when forming an image on a recording medium such as paper, or images such as water resistance and weather resistance. In order to solve the problems related to the robustness of the recording medium, the recording medium is provided with a processing agent liquid application device for applying a processing agent liquid such as an aggregating agent having a function of aggregating ink droplets before the ink droplets adhere to the recording medium. A method of improving the image quality by applying a treatment liquid in advance to a medium is generally put into practical use.

  The processing agent liquid coating apparatus includes a liquid supply pan for storing the processing agent liquid, a squeeze roller provided with a plurality of grooves capable of holding the processing agent liquid on an outer peripheral portion, and a processing agent liquid from an outer peripheral portion of the squeeze roller. Equipped with a coating roller that feeds and applies to the recording medium, and a pressure roller that faces and arranges the coating roller to sandwich and transport the recording medium, and applies the treatment liquid to the recording medium before printing It is configured to do.

FIG. 6 is a schematic configuration diagram of a coating unit in a conventional processing agent solution coating apparatus.
The conventional processing agent liquid application apparatus integrally includes a liquid supply pan 72 for storing the processing agent liquid 71 and a large number of pumping grooves 73 on the outer peripheral portion and stored in the liquid supply pan 72. A squeeze roller 74 that pumps up 71, a coating roller 75 that contacts the outer peripheral portion of the squeeze roller 74, transfers the treatment liquid 71 pumped up by the squeeze roller 74, and coats it on the recording medium W; A pressure roller 76 is provided so as to face the roller 75 and sandwich and transport the recording medium W between the application roller 75 and the like.

  As described above, in the conventional processing agent solution coating apparatus, the pumping groove 73 is integrally provided on the outer periphery of the squeeze roller 74, and a certain amount of the processing agent solution 71 is pumped up to the application roller 75 side. It was out.

  In addition, as a prior art document regarding the processing agent liquid coating apparatus, for example, Japanese Utility Model Publication No. 62-20840 (Patent Document 1) can be cited.

  FIG. 7 shows the relationship between the coating speed and the coating amount of the processing liquid when the contact load on the coating roller 75 in the squeeze roller 74 having a kind of groove shape is variously changed in the conventional processing liquid coating apparatus. In the characteristic diagram showing the relationship, the horizontal axis represents the coating speed of the coating roller 75, and the vertical axis represents the coating amount of the treatment liquid 71 on the recording medium W converted to A4 size.

  A characteristic curve E in the figure is a characteristic curve when the contact load of the squeeze roller 74 to the application roller 75 is weak, and a characteristic curve F is a characteristic curve when the contact load of the squeeze roller 74 to the application roller 75 is strong. The characteristic curve G is a characteristic curve when the contact load of the squeeze roller 74 to the application roller 75 is excessively strong.

  The dotted line L in FIG. 7 is a line indicating the coating amount of the processing agent liquid under conditions where it is easy to prevent ink bleeding, the dotted line H is a line indicating the coating amount of the processing agent liquid under conditions where it is difficult to prevent ink bleeding, and the arrow Y is an adjustment. Is an arrow indicating a necessary coating amount range.

  8 to 10 are enlarged views showing the state of the nip portion between the squeeze roller 74 and the application roller 75 when the contact load of the squeeze roller 74 to the application roller 75 is changed.

  If the contact load of the squeeze roller 74 with respect to the application roller 75 is too weak, as shown in FIG. 8, the amount of the processing agent liquid passing through the groove 73 cannot be regulated, and the nip state between the squeeze roller 74 and the application roller 75 is It becomes unstable, and a stable coating amount of the treatment liquid 71 cannot be secured. Since the state is unstable and the characteristics cannot be confirmed, the characteristic curve is not shown in FIG.

If the contact load of the squeeze roller 74 against the application roller 75 is too strong, the outer periphery of the application roller 75 bites into the groove 73 of the squeeze roller 74, as shown in FIG. As described above, the application speed dependency of the squeeze roller 74 with grooves increases, and there is a problem that the application amount of the processing liquid 71 varies when the inkjet printer is accelerated or decelerated or when the printing speed is switched.
The nip state at the time of the appropriate contact pressure between the grooved squeeze roller 74 and the application roller 75 is the state shown in FIG.

  Due to these characteristics, when using a squeeze roller 74 having a kind of groove shape, the amount of treatment liquid applied can be adjusted by the contact load, and the stable use region is the range of the arrow Z shown in FIG. Become.

  On the other hand, the effect of preventing bleeding with respect to the coating amount of the processing agent liquid 71 varies depending on the type of recording medium W, the printing resolution, and the like, and can be prevented by a small amount of coating (high printing resolution + recording medium a). There is an application (low printing resolution + recording medium b), and the coating amount of the treatment liquid 71 desired to be changed (adjusted) according to the type of recording medium W and the printing resolution is indicated by the arrow Y shown in FIG. Within the range.

  Here, when a large amount of the processing agent liquid 71 is applied to the (high printing resolution + recording medium a), although bleeding can be prevented, the use of the large amount of the processing agent liquid 71 increases the running cost. Become.

  Furthermore, in order to ensure the coating amount of the processing agent liquid 71 suitable for the respective conditions such as the printing resolution and the type of the recording medium W, a squeeze roller 74 having a plurality of types of groove shapes is prepared in advance. It is necessary to select a squeeze roller 74 suitable for the respective conditions such as the resolution and the type of the recording medium W and replace the squeeze roller 74 with the suitable one. For this reason, the cost of the processing agent solution coating apparatus is increased, and work such as selection and replacement of a suitable squeeze roller 74 is required, resulting in poor versatility.

  Furthermore, when a plurality of processing agent liquid application devices are installed side by side along the conveyance direction of the recording medium W, and the processing agent liquid 71 is repeatedly applied to the recording medium W to adjust the application amount. However, there are disadvantages such as an increase in the size of the entire treatment liquid coating apparatus and an increase in apparatus cost.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a processing agent liquid coating apparatus for an ink jet printer, which makes it possible to apply an appropriate amount of processing agent liquid, eliminates excessive application, and reduces running costs.

In order to achieve the above object, the present invention provides:
A liquid supply pan for storing the treatment liquid,
A squeeze roller that has a pumping groove on the outer periphery and pumps up the treatment liquid stored in the liquid supply pan;
The present invention is intended for an ink jet printer processing agent liquid coating apparatus provided with an application roller that contacts the outer periphery of the squeeze roller and transfers the processing agent liquid pumped up by the squeeze roller and applies it onto a recording medium. is there.

A plurality of the squeeze rollers are arranged with respect to one application roller, each squeeze roller has a different pumping amount of the treatment liquid, and each squeeze roller can contact and separate from the application roller. The application roller and each squeeze roller are accommodated in the liquid supply pan, each squeeze roller is composed of a first squeeze roller and a second squeeze roller, and the first squeeze roller and second squeeze roller are The liquid supply pan is disposed below the application roller with the application roller interposed therebetween, the liquid supply pan supports the first squeeze roller and the second squeeze roller, and is swingably provided. When the liquid supply pan is swung in one direction by being supported at a fixed position by a support member other than the pan, the first squeeze When the squeeze roller contacts the application roller, the second squeeze roller moves away from the application roller, and the liquid supply pan swings in the opposite direction, the second squeeze roller contacts the application roller, The first squeeze roller is configured to be separated from the application roller .

  The present invention is configured as described above, and it is possible to apply a treatment liquid with an appropriate amount corresponding to, for example, the printing resolution or the type of recording medium, in which the amount of the treatment liquid is different. Therefore, it is possible to provide a processing agent solution coating apparatus for an ink jet printer that can reduce the running cost.

It is a schematic block diagram which shows a state when a processing agent liquid is not apply | coated to a recording medium with the processing agent liquid application apparatus which concerns on the Example of this invention. It is a schematic block diagram which shows the state when a small amount of processing agent liquid is apply | coated to a recording medium with the processing agent liquid application apparatus. It is a schematic block diagram showing a state when a large amount of treatment liquid is applied to a recording medium with the treatment liquid application device. In the processing agent liquid application apparatus according to the embodiment of the present invention, a characteristic diagram showing the relationship between the application speed and the application amount of the processing agent liquid when the contact load on the application roller is variously changed in various squeeze rollers. is there. 1 is a schematic configuration diagram for explaining a flow of an image forming system according to an embodiment of the present invention. It is a schematic block diagram of the application | coating means in the conventional processing agent liquid application apparatus. FIG. 5 is a characteristic diagram showing the relationship between the application speed and the amount of treatment agent liquid applied when the contact load on the application roller is variously changed in a squeeze roller having a kind of groove shape in a conventional treatment agent solution application apparatus. is there. FIG. 10 is an enlarged view showing a joining state of a nip portion between a squeeze roller and a coating roller when a contact load of the squeeze roller with respect to the coating roller is excessively weakened in a conventional processing agent solution coating apparatus. FIG. 10 is an enlarged view showing a joining state of a nip portion between a squeeze roller and a coating roller when a contact load of the squeeze roller with respect to the coating roller is too strong in a conventional processing agent solution coating apparatus. FIG. 10 is an enlarged view showing a joining state of a nip portion between a squeeze roller and an application roller when a contact load of the squeeze roller to the application roller is appropriate in a conventional processing agent liquid application apparatus.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 5 is a schematic configuration diagram for explaining the flow of the image forming system according to the embodiment of the present invention.

  As shown in FIG. 5, the recording medium W made of, for example, a long continuous sheet fed from the paper feeding device 31 is first fed to the treatment liquid coating device 32 and is applied to the surface of the recording medium W. A pretreatment is performed by applying a treatment liquid such as an inhibitor having a function of aggregating ink droplets.

  Next, the processed recording medium W is sent to the ink jet printer 33, and ink droplets are ejected onto the surface of the recording medium W to form a desired image. The system is post-processed.

  1 to 3 are schematic configuration diagrams of a processing agent liquid coating apparatus used in the image forming system, and FIG. 1 is a diagram of the processing agent liquid coating apparatus showing a state when the processing liquid is not applied to a recording medium. FIG. 2 is a diagram of a processing agent liquid coating apparatus showing a state when a small amount of processing agent liquid is applied to a recording medium, and FIG. 3 is a processing agent liquid application showing a state when applying a large amount of processing agent liquid to the recording medium. FIG.

  As shown in these drawings, a transfer roller 1 is rotatably supported at one end of a transfer roller arm 2, and a tension spring 3 is connected to the other end of the arm 2, and the transfer roller 1 is applied to the application roller by the tensile force. It is elastically biased to the 4 side.

  Reference numeral 5 denotes a swing fulcrum of the arm 2 provided at an intermediate position of the arm 2. An eccentric cam 6 is in contact with the connecting portion between the swing fulcrum 5 of the arm 2 and the tension spring 3, and the transfer roller 1 is applied against the tensile force of the spring 3 by the rotation of the eccentric cam 6. It can be separated from the roller 4 (see FIG. 1).

  As shown in the figure, the transfer roller 1, the arm 2, the tension spring 3, and the eccentric cam 6 are disposed above the opening of the liquid supply pan 9 that stores the processing agent liquid 19.

  A first squeeze roller 7 and a second squeeze roller 8 are arranged on the lower left and right sides of the application roller 4 in parallel with the axial direction of the application roller 4. On the surface of the squeeze rollers 7 and 8, grooves (not shown) for pumping up the processing agent liquid are formed along the circumferential direction.

  The depth of the groove of the first squeeze roller 7 is 9 μm, the depth of the groove of the second squeeze roller 8 is 12 μm, and the groove of the second squeeze roller 8 is 3 μm deeper (the groove of the first squeeze roller 7). Depth <depth of the groove portion of the second squeeze roller 8). The opening width of the groove and the pitch of the groove are the same for both squeeze rollers 7 and 8.

  The groove portion is formed in a spiral shape along the circumferential direction of the squeeze rollers 7 and 8 and can be manufactured at a low cost by rolling, and the flow of the treatment liquid 19 in the axial direction of the squeeze rollers 7 and 8. For example, fluctuations in the amount of liquid passing due to clogging of foreign matters such as scattered toner can be suppressed.

  As shown in the figure, the application roller 4 and the squeeze rollers 7 and 8 are accommodated in a liquid supply pan 9, and the squeeze rollers 7 and 8 are supported by a swingable liquid supply pan 9. On the other hand, the application roller 4 is supported at a fixed position by another support member (not shown).

A first arm 10 protrudes horizontally on the side of the first squeeze roller 7 on the side of the liquid supply pan 9, and a second arm 11 protrudes on the side of the second squeeze roller 8 on the side of the liquid supply pan 9. Yes. The arms 10 and 11 can be elastically biased by compression springs 14 and 15 via pins 12 and 13. A first eccentric cam 17 and a second eccentric cam 18 are respectively installed below the pins 12 and 13.
Reference numeral 16 denotes a swing fulcrum of the liquid supply pan 9 provided on a droop line passing through an intermediate point between the first squeeze roller 7 and the second squeeze roller 8.

  As shown in FIG. 1, when the treatment liquid 19 is not applied to the recording medium W, the eccentric cams 17 and 18 have their top dead center (bottom dead center) at the same position, and the pins 12 and 13 The eccentric cams 17 and 18 are in contact with each other, and the left and right balance is achieved by the compression springs 14 and 15, and the first squeeze roller 7 and the second squeeze roller 8 are separated from the application roller 4.

  Then, the eccentric cam 6 rotates to separate the transfer roller 1 from the application roller 4 against the tension of the tension spring 3, and accordingly the recording medium W is also separated from the application roller 4.

FIG. 4 is a characteristic diagram summarizing the results of experiments on the relationship between the coating speed and the coating speed applied by the squeeze rollers 7 and 8 for each load.
Curve A in the figure is a characteristic curve when the contact load of the first squeeze roller 7 to the application roller 4 is weakened, and curve B is a characteristic curve when the contact load of the first squeeze roller 7 to the application roller 4 is increased. In this case, the second squeeze roller 8 is separated from the application roller 4 (see FIG. 2).

  Curve C is a characteristic curve when the contact load of the second squeeze roller 8 to the application roller 4 is weakened, and curve D is a characteristic curve when the contact load of the second squeeze roller 8 to the application roller 4 is increased. In this case, the first squeeze roller 7 is separated from the application roller 4 (see FIG. 3). It is.

  As apparent from FIG. 4, the variable range of application amount of the processing agent liquid 19 on the first squeeze roller 7 is the range indicated by the arrow Z, and the variable range of application amount of the processing agent liquid 19 on the second squeeze roller 8 is The range is indicated by the arrow W, and the coating amount range (the range indicated by the arrow Y) that needs to be adjusted is reliably covered.

  On the other hand, the coating amount of the treatment liquid 19 necessary to prevent bleeding depending on the type of recording medium W, printing resolution, and the like can be varied under the condition of easy to prevent bleeding: L and the condition of difficult to prevent bleeding: H. The required coating amount range is the range of the arrow Y.

  As shown in FIG. 2, when the application amount of the treatment liquid 19 is as small as 20 to 60 mg / A4 size, the first eccentric cam 17 rotates to increase the elastic biasing force of the compression spring 14. The second eccentric cam 18 is rotated to release the elastic biasing force of the compression spring 15.

  By this operation, the liquid supply pan 9 supporting the squeeze rollers 7 and 8 rotates clockwise around the swing fulcrum 16, and the first squeeze roller 7 having a shallow groove as shown in FIG. Comes into contact with the application roller 4 and the second squeeze roller 8 is separated from the application roller 4. The elastic biasing force of the compression spring 14, that is, the contact load of the first squeeze roller 7 with respect to the application roller 4 can be adjusted by the rotation angle of the first eccentric cam 17.

  As a coating operation of the treatment liquid 19, in the case of a large coating amount exceeding 60 mg / A4 size to about 100 mg / A4 size, the second eccentric cam 18 rotates and the compression spring 15 rotates as shown in FIG. While increasing the elastic biasing force, the first eccentric cam 17 rotates to release the elastic biasing force of the compression spring 14.

  By this operation, the liquid supply pan 9 supporting the squeeze rollers 7 and 8 rotates counterclockwise about the swinging fulcrum 16, and the first squeeze roller 7 is applied to the application roller as shown in FIG. The second squeeze roller 8 having a deep groove portion away from 4 contacts the application roller 4. The elastic biasing force of the compression spring 15, that is, the contact load of the second squeeze roller 8 against the application roller 4 can be adjusted by the rotation angle of the second eccentric cam 18.

  The processing agent liquid 19 is contained in the liquid supply pan 9, and the liquid level of the processing agent liquid 19 is kept constant. The squeeze rollers 7 and 8 are partly immersed in the treatment agent liquid 19, and the first squeeze roller 7 or the second squeeze roller 8 is rotated by rotating the application roller 4 with the motor 20, and the treatment agent. Due to the viscosity of the liquid 19, the treatment liquid 19 can be conveyed to the nip position between the application roller 4 and the first squeeze roller 7 or between the application roller 4 and the second squeeze roller 8.

  The treatment agent liquid 19 passes through the nip portion between the application roller 4 and the first squeeze roller 7 or between the application roller 4 and the second squeeze roller 8 to form a thin film of the treatment agent solution 19 that is uniformized on the surface of the application roller 4. To do. By pressing the recording medium W against the application roller 4 by the transfer roller 1, a thin film of the processing agent liquid 19 is transferred and applied onto the recording medium W.

  The material of the treatment liquid 19 is appropriately selected by hand taking into account, for example, the type of ink used in the ink jet printer or the material of the recording medium W.

  The liquid level position of the processing agent liquid 19 in the liquid supply pan 9 is monitored by a liquid level sensor 21. When the liquid level becomes low, the supply valve 22 is opened and the supply pump 23 is driven to process the liquid. The processing liquid 19 in the liquid tank 24 is fed into the liquid supply pan 9.

  When the predetermined liquid level position is reached, the supply valve 22 is closed and the supply pump 23 is stopped, so that the liquid level position of the processing agent liquid 19 in the liquid supply pan 9 is kept constant.

  In consideration of property deterioration due to the viscosity increase of the processing agent liquid 19, a discharge valve 25, a discharge pump 26 and a waste liquid tank 27 are provided for discharging the used processing agent liquid 19. Then, by opening the discharge valve 25 and driving the discharge pump 26, the deteriorated processing agent liquid 19 in the liquid supply pan 9 can be discharged into the waste liquid tank 27.

  In the above embodiment, the spiral groove portion is provided along the circumferential surface of the squeeze roller. However, an annular groove portion extending in the direction perpendicular to the roller axis can be provided along the circumferential surface of the squeeze roller.

  In the above-described embodiment, an example using two squeeze rollers having different groove depths is shown. However, if three or more squeeze rollers having different groove depths are used, the adjustment range of the coating amount of the processing agent liquid Can be further expanded. Also in this case, the difference in the groove depth between the squeeze rollers needs to be 3 μm or more. When three or more squeeze rollers are used, each squeeze roller may be configured to be able to contact and separate from the application roller individually.

  In the above embodiment, an example using a squeeze roller having a different depth of the groove portion is shown, but the depth of the groove portion is the same, and by changing the opening width of the groove portion, the size of the sectional area of the groove portion of the squeeze roller, That is, it is possible to vary the pumping amount of the treatment liquid.

  It is also possible to change the pumping amount of the processing agent liquid by changing the pitch of the groove portion provided in the squeeze roller, that is, using a squeeze roller having a groove portion with a short pitch and a squeeze roller having a groove portion with a long pitch. Yes, squeeze rollers having different pumping amounts can be manufactured by appropriately combining the groove depth, opening width and pitch of the squeeze roller.

  In the above embodiment, as shown in FIG. 5, an example in which the processing agent liquid coating device 32 and the ink jet printer 33 are provided separately as devices is shown, but the processing is performed upstream in the transport direction of the recording medium W in one device. The present invention can also be applied to an apparatus in which a liquid solution application unit (apparatus) is provided with an ink jet printer unit downstream thereof.

  In the above embodiment, as shown in FIG. 5, an example in which one processing agent liquid application device 32 is used is shown. However, the processing agent liquid application device or the processing agent liquid application unit is arranged in the conveyance direction of the recording medium W. The present invention can also be applied to a case where a plurality are provided along.

The operation and effect according to the claims of the present invention are as follows.
In the inventions according to claim 1 and claim 2, in one processing agent liquid application apparatus for an ink jet printer, each squeeze roller having a different pumping amount of the processing agent liquid is provided so as to be able to contact and separate from the application roller. The application amount of the treatment liquid can be used properly. For example, depending on the printing resolution and the type of the recording medium, the treatment liquid can be applied in an appropriate application amount, so that excessive application can be eliminated and the running cost can be reduced.

  In the invention according to claim 3, since the groove provided in each squeeze roller is a groove formed spirally along the circumferential direction of the squeeze roller, it can be manufactured at low cost by rolling, The fluidity of the processing agent liquid in the axial direction of the squeeze roller can be improved, and fluctuations in the liquid passage amount due to clogging of foreign substances can be suppressed.

  In the invention according to claim 4, by adjusting the depth of the groove provided in each squeeze roller by 3 μm or more and varying the pumping amount of the processing agent solution, the adjustment of the application of the processing agent solution is more reliably performed. Done.

  The invention according to claim 5 has a more specific configuration, and in one processing agent liquid application device for an ink jet printer, the application amount of the processing agent liquid can be properly used. For example, the printing resolution and the recording medium Depending on the type and the like, it is possible to apply an appropriate amount of the processing agent solution, eliminating excessive application and reducing running costs.

  In the invention according to claim 6, the contact load of the first squeeze roller to the application roller can be adjusted by the rotation angle of the first eccentric cam, and the second load relative to the application roller by the rotation angle of the second eccentric cam. Since the contact load of the squeeze roller can be adjusted, the treatment liquid can be applied satisfactorily with an appropriate contact load.

  In the invention according to claim 7, since the processing agent liquid is a bleeding inhibitor liquid that suppresses ink bleeding on the recording medium, a clear image without bleeding is formed regardless of the type of the recording medium. Can do.

  In the invention according to claim 8, there are problems in initial quality such as bleeding, density, color tone and show-through of ink droplets when forming an image on a recording medium, or image fastness such as water resistance and weather resistance. The related problems can be solved and the image quality can be improved.

1: transfer roller,
4: Application roller,
7: First squeeze roller,
8: Second squeeze roller,
9: Liquid supply pan,
10: first arm,
11: second arm,
16: Oscillating fulcrum
17: first eccentric cam,
18: Second eccentric cam,
19: Treatment solution
33: Inkjet printer,
W: Recording medium.

JP 2001-194619 A

Claims (3)

A liquid supply pan for storing the treatment liquid,
A squeeze roller that has a pumping groove on the outer periphery and pumps up the treatment liquid stored in the liquid supply pan;
In a processing agent liquid coating apparatus for an ink jet printer, comprising an application roller that contacts the outer peripheral portion of the squeeze roller and transfers the processing agent liquid pumped up by the squeeze roller and applies it onto a recording medium.
A plurality of the squeeze rollers are arranged for one application roller, each squeeze roller has a different pumping amount of the treatment liquid, and each squeeze roller is provided so as to be able to contact and separate from the application roller. ,
The application roller and each squeeze roller are accommodated in the liquid supply pan,
Each of the squeeze rollers includes a first squeeze roller and a second squeeze roller, and the first squeeze roller and the second squeeze roller are disposed below the application roller with the application roller interposed therebetween,
The liquid supply pan supports the first squeeze roller and the second squeeze roller, and is provided so as to be swingable.
The application roller is supported at a fixed position by a support member other than the liquid supply pan,
When the liquid supply pan is swung in one direction, the first squeeze roller comes into contact with the application roller, and the second squeeze roller is separated from the application roller,
When the liquid supply pan is swung in the opposite direction, the second squeeze roller comes into contact with the application roller, and the first squeeze roller is separated from the application roller. Treatment liquid application equipment. The processing agent solution coating apparatus for an ink jet printer according to claim 1,
A first eccentric cam for swinging the liquid supply pan in one direction and a second eccentric cam for swinging the liquid supply pan in the opposite direction;
The contact load of the first squeeze roller with respect to the application roller can be adjusted by the rotation angle of the first eccentric cam,
A treatment liquid coating apparatus for an ink jet printer, wherein a contact load of the second squeeze roller with respect to the coating roller can be adjusted by a rotation angle of the second eccentric cam . In an image forming system provided with a treatment liquid coating apparatus for an inkjet printer on the upstream side in the recording medium conveyance direction of the inkjet printer ,
The image forming system according to claim 1, wherein the processing agent liquid coating apparatus for an ink jet printer is the processing liquid coating apparatus for an ink jet printer.

Images