JP2006297726A - Liquid ejector, recorder, method of removing liquid and method of removing ink - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent adhesion of a liquid adhering to discharge follower rollers 232 to a recording paper 180. <P>SOLUTION: The ink-jet recorder 10 which ejects the liquid to the recording paper 180 is equipped with a recording head 172 which ejects the liquid to one face of the recording paper 180 while moving back and forth on the recording paper 180, a transfer part 150 which transfers the recording paper 180 to a position opposed to the recording head 172, a discharge part 160 with the discharge follower rollers and discharge driving rollers 230, and a control part 300 which discharges the recording paper 180 in a state with the ejection action of the recording head 172 being stopped on the basis of an indication that the liquid should be removed from the discharge follower rollers. The discharge follower rollers are arranged at the one face side of the recording paper 180 and rotate freely. The discharge driving rollers 230 are arranged oppositely to the discharge follower rollers and are rotary driven. The discharge part 160 discharges the recording paper 180 by holding the recording paper 180 between the discharge follower rollers and the discharge driving rollers 230. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a liquid ejecting apparatus, a recording apparatus, a liquid removing method, and an ink removing method. More specifically, the present invention relates to a liquid ejecting apparatus, a recording apparatus, a liquid removal method, and a liquid ejecting apparatus that perform a recording operation by transporting a sheet-shaped or plate-shaped recorded object and attaching a liquid to the recorded object. The present invention relates to an ink removing method.

  In many liquid ejecting apparatuses such as an ink jet recording apparatus, a transport mechanism including a pair of rollers that rotate with each other is used for feeding, transporting, or discharging a recording material. Here, at least one of the rollers is a driving roller that is rotationally driven by some driving means. The rollers other than the driving roller are driven rollers that are mounted so as to freely rotate in accordance with the rotation of the driving roller or the conveyance of the recording material.

  Further, the driven roller is disposed at a position facing the driving roller with the recording material sandwiched therebetween, an opposed driven roller that presses the recording material against the driving roller, and the recording roller alone at a position different from the driving roller. In contact therewith, an independent driven roller for preventing the movement of the recording material is included. The recording material is pressed against the driving roller by a part of the driven rollers, and is conveyed according to the rotation of the driving roller.

  The discharge driven roller used for discharging the recording material in this type of liquid ejecting apparatus contacts the recording surface of the recording material to which the liquid ejected from the liquid ejecting head has already adhered. For this reason, a part of undried liquid may adhere to the discharge driven roller. Further, the liquid adhering to the discharge driven roller eventually dries and solidifies, and further liquid adheres thereto. Accordingly, as the operation time of the liquid ejecting apparatus is accumulated, the liquid residue is accumulated on the transport driven roller.

  If the liquid or its residue adheres to the discharge driven roller in this way, the discharge driven when any environmental conditions such as vibrations due to the operation of the liquid ejecting apparatus or changes in printing conditions due to changes in the recording material change. In some cases, the liquid adhering to the roller or its residue may adhere to the recording surface of the recording material.

Japanese Patent Application Laid-Open Publication No. 2003-228561 discloses a technique for removing ink adhering to a discharge driven roller. According to Patent Document 1, in an ink jet recording apparatus, a paper pressing roller is rotated at a low speed without performing a recording operation, and a cleaning member is brought into contact with the paper pressing roller in the meantime, thereby removing ink attached to the paper pressing roller. The Note that the paper pressing roller referred to in Patent Document 1 corresponds to a discharge driven roller that comes into contact with a recording surface after recording.
JP 2002-003003 A

  Here, in an ink jet recording apparatus, ink may be densely applied over the entire recording surface like a photographic image. When the discharge driven roller comes into contact with such a recording surface and the undried ink adheres to the discharge driven roller, the roller marks formed on the recording surface become very conspicuous. Therefore, there is an ink jet recording apparatus used as a so-called spur type discharge driven roller in which the contact area of the discharge driven roller with respect to the recording material is reduced in order to reduce the roller trace.

  The spur-type discharge driven roller has a sharp needle-like contact portion on its peripheral surface. However, even with this spur-type discharge driven roller, when it comes into contact with undried liquid, the liquid may adhere to the needle-like contact portion. For this reason, as the operation time accumulates, the liquid accumulates on the contact portion, and when the accumulated liquid eventually becomes large, the liquid is transferred to the recording material side and a clear roller mark may be generated.

  In such a case, since the spur-type discharge driven roller has a sharp needle-like contact portion, as described in Patent Document 1, ink can be removed only by rotating the cleaning member in contact with the roller. Is difficult.

  In order to solve the above problems, as a first embodiment of the present invention, there is provided a liquid ejecting apparatus that ejects liquid onto a recording material, wherein the liquid is applied to one surface of the recording material while reciprocating on the recording material. A liquid ejecting head that ejects, a transport unit that transports a recording material to a position facing the liquid ejecting head, a discharge driven roller that is arranged on one side of the recording material, and that freely rotates, and faces the discharge driven roller And a discharge drive roller that is rotationally driven. The recording medium is sandwiched between the discharge driven roller and the discharge drive roller, and the liquid is removed from the discharge section that discharges the recording medium and the discharge driven roller. According to an instruction to the effect, a liquid ejecting apparatus is provided that includes a control unit that ejects a recording material in a state where the ejecting operation of the liquid ejecting head is stopped. As a result, the liquid and its residue adhering to the transport driven roller can adhere to the recording material, and the ink or its residue can be removed from the discharge driven roller.

  In the liquid ejecting apparatus, the discharge driven roller includes a disk-shaped disk portion, and a plurality of needle-shaped contact portions that are arranged on the peripheral surface of the disk portion and have tips that penetrate the recording material, The contact portion may penetrate deeper into the recording material based on an instruction to remove the recording medium. As a result, the recording material is wiped up to a portion not in contact with the recording material in a normal discharging operation involving the ejecting operation of the liquid ejecting head, so that the liquid adhering to the discharging driven roller is more completely removed.

  In the liquid ejecting apparatus, based on an instruction that the liquid is to be removed, the control unit is configured such that the recording medium is sandwiched between the discharge driving roller and the discharge driven roller before the recording medium is discharged. The recorded matter may be conveyed at least one reciprocation over the entire length in the conveyance direction. In the liquid ejecting apparatus, the recording unit is sandwiched between the discharge driving roller and the discharge driven roller by the time the recording unit is discharged based on an instruction to remove the liquid. The operation of transporting at least one reciprocation in a section shorter than the total length in the transport direction of the recording material may be repeated. As a result, the ink removing operation is repeated, and the effect of removing the liquid from the transport driven roller by the recording material becomes higher.

  According to a second aspect of the present invention, there is provided a recording apparatus that ejects ink onto a recording material, a recording head that ejects ink onto one surface of the recording material while reciprocating on the recording material, and a recording head A transport unit that transports a recording material to an opposed position, a discharge driven roller that is arranged on one side of the recording material, and that freely rotates, and is disposed to face the discharge driven roller and is driven to rotate. The recording head is sandwiched between the discharge driven roller and the discharge drive roller, the discharge unit for discharging the recorded material, and the instruction to remove the liquid from the discharge driven roller, There is provided a recording apparatus including a control unit that discharges a recording material in a state where an ejection operation is stopped. Thereby, also in the recording apparatus, the ink attached to the conveyance driven roller can be attached to the recording material, and the ink can be removed from the discharge driven roller.

  As a third aspect of the present invention, there is provided a discharge driven roller that rotates in contact with the recording surface after the liquid ejecting head ejects the liquid onto the recording surface of the recording material conveyed in the conveying direction by the conveying unit. In a liquid ejecting apparatus that ejects a recording material by a discharge unit including the liquid ejecting apparatus, a method of removing liquid adhering to a discharge driven roller of the discharge unit, the liquid ejecting based on an instruction to remove the liquid from the discharge driven roller A discharging step of conveying the recording material by the discharging unit while the ejection operation of the head is stopped and discharging the recording material by attaching the liquid adhering to the discharge driven roller to the recording material. Thereby, the effect similar to the 1st form can be acquired.

  As a fourth aspect of the present invention, a discharge driven roller that rotates in contact with the recording surface after ejecting ink to the recording surface of the recording material conveyed in the conveyance direction by the conveyance unit is included. In a liquid ejecting apparatus that discharges a recording material by a discharge unit, a method of removing ink adhering to a discharge driven roller of a discharge unit, and based on an instruction that the ink should be removed from the discharge driven roller, A discharge step of conveying the recording material by the discharging unit in a state where the discharging operation is stopped and discharging the recording material by attaching the ink attached to the discharge driven roller to the recording material. Thereby, the effect similar to a 2nd form can be acquired.

  The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

  Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the invention according to the scope of claims, and all combinations of features described in the embodiments are included. It is not necessarily essential for the solution of the invention.

  FIG. 1 is a perspective view of an overview of an ink jet recording apparatus 10 that is an example of a liquid ejecting apparatus. As shown in FIG. 1, the ink jet recording apparatus 10 includes a lower case 100 serving as a base of the entire apparatus, an upper case 110 that forms a casing together with the lower case 100, and a paper attached to the rear part of the lower case 100. A support 120 and a discharge tray 130 formed on the front surface of the lower case 100 are provided. In addition, the inkjet recording apparatus 10 includes a platen 140 disposed horizontally in the lower case 100, a conveyance unit 150 disposed behind the platen 140, and a discharge unit 160 disposed in front of the platen 140. Is provided inside. Further, a carriage 170 is disposed above the platen 140.

  In the ink jet recording apparatus 10 as described above, the recording paper 180 accommodated in the paper support 120 is sent one by one onto the platen 140 by the transport unit 150 and is sent out to the discharge tray 130 by the discharge unit 160. Further, a carriage 170 driven by a carriage motor (not shown) is reciprocated above the platen 140 in a direction orthogonal to the conveyance direction of the recording paper 180.

  Therefore, the entire upper surface of the recording paper 180 can be scanned by the carriage 170 by alternately conveying the recording paper 180 and reciprocating the carriage 170. Further, the carriage 170 includes a recording head as a liquid ejecting head on the lower surface thereof, and ink can be ejected and adhered to an arbitrary region on the upper surface of the recording paper 180.

  FIG. 2 is an exploded perspective view showing the conveyance mechanism 20 for the recording paper 180 in the ink jet recording apparatus 10. In order to make the relationship with the ink jet recording apparatus 10 shown in FIG. 1 easier to understand, a platen 140 and a carriage 170 that are not directly involved in the conveyance of the recording paper 180 are also drawn.

  As shown in the figure, the transport mechanism 20 includes a paper support 120 exposed behind the ink jet recording apparatus 10, a feeding roller 210 disposed adjacent to the lower end of the paper support 120, and a feeding roller 210. It includes a conveyance drive roller 220, a platen 140, and a discharge drive roller 230 that are sequentially disposed in front. Here, the feed roller 210 is rotationally driven by a motor 240. Further, the conveyance drive roller 220 and the discharge drive roller 230 are also rotationally driven by a motor (not shown).

  The feeding roller 210 is combined with a feeding driven roller 212 that faces the recording paper 180 across the feeding path to form a feeding unit. That is, in the feeding unit, the recording paper 180 is pressed against the feeding roller 210 by the feeding driven roller 212 and is taken into the ink jet recording apparatus 10 by friction with the feeding roller 210 that is rotationally driven. Is fed to a conveyance unit 150 arranged downstream of the first.

  The conveyance driving roller 220 is combined with a conveyance driven roller 222 that is opposed to the recording paper 180 across the conveyance path of the recording paper 180 to form a conveyance unit 150. In the transport unit 150, the recording paper 180 is pressed against the transport drive roller 220 by the transport driven roller 222 and is transported toward the platen 140 by friction with the transport drive roller 220 that is rotationally driven.

  The discharge unit 160 formed on the downstream side of the platen 140 includes a discharge drive roller 230 and a plurality of driven rollers. The discharge drive roller 230 includes a shaft 231 having a constant diameter and an elastic roller 233 partially attached thereto, and the diameter of the portion where the elastic roller 233 is attached is large.

  On the other hand, the driven roller has a position different from the elastic roller 233 on the recording surface of the recording paper 180 and the opposed driven roller 232 arranged to face the elastic roller 233 across the discharge path of the recording paper 180. And an independent driven roller 234. However, the opposed driven roller 232 and the independent driven roller 234 are members having the same diameter. In the following description, when the opposed driven roller 232 and the independent driven roller 234 are collectively referred to as “discharge driven roller”.

  FIG. 3 is a partially enlarged view showing the discharge unit 160 viewed from the arrow A side shown in FIG. As shown in the figure, a counter driven roller 232 arranged to face the elastic roller 233 is in contact with the elastic roller 233 at a portion where the elastic roller 233 is mounted and the diameter is enlarged.

  On the other hand, the independent driven roller 234 is not in contact with any part of the discharge driving roller 230 in a portion where the elastic roller 233 is not attached. Accordingly, the independent driven roller 234 touches the recording paper 180 and rotates according to the conveyance.

  Here, all the discharge driven rollers are supported from above by a common frame 235 and abut against the discharged recording paper 180 from above. This means that each discharge driven roller comes into contact with the recording surface of the recording paper 180.

  FIG. 4 is a longitudinal sectional view in which the discharge unit 160 is mainly cut by a vertical plane parallel to the opposed driven roller 232. As shown in the figure, the counter driven roller 232 sandwiches the recording paper 180 from above and below together with the elastic roller 233 attached to the discharge driving roller 230. Accordingly, the recording paper 180 is pressed against the elastic roller 233 by the opposed driven roller 232. Since the discharge drive roller 230 is driven to rotate as described above, the recording paper 180 is discharged toward the left side in the drawing as the discharge drive roller 230 rotates.

  Here, the ink ejected from the recording head 172 mounted on the bottom of the carriage 170 that is partially visible on the right side in the drawing is attached to the recording paper 180 discharged by the discharge unit 160. Therefore, the counter driven roller 232 comes into contact with the recording surface of the recording paper 180 to which ink is attached. Although not shown in this figure, the independent driven roller 234 also contacts the recording surface of the recording paper 180 in the same manner.

  FIG. 5 is a diagram independently showing the shape of a member used as a discharge driven roller including the opposed driven roller 232 and the independent driven roller 234 in the ink jet recording apparatus 10 as described above. As shown in the figure, the discharge driven roller is formed of a metal disk part 238 having a plurality of sharp contact parts 239 formed around it, and a pair of resin disk parts 236 sandwiching the metal disk part 238 from both sides. ing. In addition, a shaft hole 237 that penetrates the resin disk portion 236 and the metal disk portion 238 is provided at the center.

  As described above, the members used for the opposed driven roller 232 and the independent driven roller 234 have undulations on the circumferential surface thereof, and the tip of the contact portion 239 is sharply pointed. Accordingly, even if the cleaning member is rotated while contacting the peripheral portion as described in Patent Document 1, it is difficult to wipe the peripheral surface thoroughly. Moreover, it is dangerous for the user to expose the sharp contact portion 239.

  In the ink jet recording apparatus 10 including the transport mechanism 20 configured as described above, first, the recording paper 180 is stacked and stored on the paper support 120. When the recording operation is started, first, the uppermost recording sheet 180 is sandwiched between the feeding roller 210 and the feeding driven roller 212 and taken into the ink jet recording apparatus 10. It is sandwiched between the transport driven rollers 222 and sent out onto the platen 140.

  On the other hand, in the ink jet recording apparatus 10, a carriage 170 is disposed above the platen 140. A recording head 172 is mounted on the lower surface of the carriage 170, and ink is ejected from the recording head 172 toward the lower side of the carriage 170 in the recording operation.

  Therefore, the ink ejected from the recording head 172 provided on the upper carriage 170 is sprayed on the recording paper 180 during the period when it is located on the platen 140. At this time, the platen 140 supports the recording paper 180 from below, and keeps the distance between the recording head 172 and the recording paper 180 constant.

  Further, the recording sheet 180 that has passed under the carriage 170 is eventually sandwiched between the discharge driving roller 230 and the opposed driven roller 232 and is sent out of the ink jet recording apparatus 10. At this time, the independent driven roller 234 touches the recording paper 180 and rotates according to the movement accompanying the discharge. With these series of operations, the recording operation by the ink jet recording apparatus 10 is completed.

  In the above-described series of recording operations, the discharge driven roller contacts the recording surface of the recording paper 180 after ink is attached by the recording head 172. Accordingly, when the ink adhering to the recording paper 180 is not dried or peeled off, the ink adheres to the discharge driven roller. Further, as described above, since the contact portion 239 that protrudes partially is formed on the peripheral surface of the discharge driven roller, even if the cleaning member fixed to the rotating discharge driven roller is brought into contact, the adhered ink Or the residue cannot be removed completely.

  On the other hand, in the ink jet recording apparatus 10, the recording paper 180 is fed, transported and discharged in a state where the ink ejection by the recording head 172 is stopped, and the discharge driven roller is wiped by the recording paper 180. Can do. Most of the ink residue adhering to the discharge driven roller stays on the surface of the discharge driven roller because it is solidified, but since it is already dry, it has no adhesion. Accordingly, the recording paper 180 is easily peeled off when brought into contact therewith. By such an ink removing operation, it is possible to remove the ink adhering to the discharge driven roller or its residue.

  FIG. 6 is a block diagram schematically showing the structure of the control unit 300 mounted on the ink jet recording apparatus 10. As shown in FIG. 1, the ink jet recording apparatus 10 controls the components of the ink jet recording apparatus 10 under the control of the central control unit 310 that receives instructions and recording data from the user 301 and the central control unit 310. And an individual control unit 311.

  The central control unit 310 exchanges signals with various inputs / outputs provided in the ink jet recording apparatus 10 in addition to the instructions from the user 301 and the recording data. That is, it receives signals from various input units such as the hardware switch 312, the print amount counter 314, and the sensors 316 mounted on the ink jet recording apparatus 10, and also generates a message to be returned to the display unit 380. The central control unit 310 is also equipped with a built-in program 318, which activates the built-in program when an instruction from the user 301 is detected or when a specific condition is detected from various input units. It is also possible to cause the recording device 10 to autonomously execute a specific operation.

  In addition to the power switch, the hardware switch 312 directly activates and executes functions implemented in the ink jet recording apparatus 10 according to the model. Specific examples include those that cancel the recording operation that is being executed, those that perform a forced paper discharge operation, and those that perform settings for the inkjet recording apparatus 10 alone. The printing amount counter 314 stores the effective operating time of the ink jet recording apparatus 10 by monitoring the number of conveyed recording sheets 180, the amount of consumed ink, etc., although the specifications differ depending on the model. Further, the sensors 316 monitor the operation state of each part of the ink jet recording apparatus 10 such as the presence / absence of the recording paper 180, the position of the recording paper on the conveyance path, and the amount of ink.

  On the other hand, in the individual control unit 311, the conveyance control unit 320 integrally controls the feeding unit 350, the conveyance unit 150, and the discharge unit 160 of the ink jet recording apparatus 10 illustrated in FIG. 2. By this control, the recording paper 180 is fed, conveyed, and discharged.

  In the individual control unit 311, the carriage control unit 330 controls the operation of the carriage motor 360 in response to the feeding, transporting, and discharging of the recording paper 180 by the transport control unit 320, and executes the reciprocating movement of the carriage 170. Or stop. Further, before or after the start of the recording operation, the movement of the carriage 170 is also controlled in operations other than the recording operation, such as returning the carriage 170 to the home position.

  Further, in the individual control unit 311, the recording head control unit 340 controls the recording head driving unit 370 to operate the recording head 172 mounted on the carriage 170. That is, in addition to discharging or stopping ink, an ink discharge amount, a flushing operation for nozzle cleaning, and the like are realized.

  The ink removal operation described above can be implemented as the built-in program 318 in the control unit 300 as described above. That is, the ink removing operation of the ink jet recording apparatus 10 is the same as the normal recording operation in the path from feeding, transporting, and discharging the recording paper 180 except that the operation of the recording head 172 is stopped. is doing.

  Therefore, in the ink removal operation, the carriage control unit 330 and the print head control unit 340 do not issue operation instructions. Therefore, the carriage motor 360 does not operate and the carriage 170 does not move. Further, since the recording head 172 does not operate, ink is not ejected. In this state, when the conveyance control unit 320 issues the same instruction as the normal recording operation to the feeding unit 350, the conveyance unit 150, and the discharge unit 160, the recording sheet 180 is conveyed as a blank sheet, and the discharge unit It passes through 160 and is discharged. As described above, the ink removing operation can be realized by individually controlling each function provided in the ink jet recording apparatus 10.

  Various triggers for instructing activation and execution of the built-in program 318 related to the ink removal operation can be set. That is, for example, by installing the hardware switch 312 for starting and executing the ink removal operation, the user 301 of the ink jet recording apparatus 10 can execute the ink removal operation at an arbitrary timing.

  Further, based on information from the printing amount counter 314, the central control unit 310 can be set to automatically start and execute the built-in program 318 when a predetermined amount of recording operation is performed. Alternatively, the central control unit 310 can be set to automatically start and execute the built-in program 318 at a specific timing such as when the ink jet recording apparatus 10 is turned on or when the ink cartridge is replaced. Furthermore, some of these starting and executing means can be implemented simultaneously.

  For example, the discharge driving roller 230 is reversed several times during the ink removal operation described above, and the blank recording paper 180 is reciprocated within a range where the recording paper 180 is in contact with the discharge driven roller, thereby wiping the discharge driven roller. Can be repeated. As a result, the effective length of the recording paper 180 involved in wiping the transport driven roller is extended, and the ink removing effect is further enhanced. The reciprocating conveyance of the recording paper 180 may be reciprocated over the entire length in the conveyance direction of the recording paper 180, or may be gradually discharged while repeating the reciprocating operation partially. In any case, for example, by setting the length of the recording paper 180 in contact with the conveyance driven roller to about 10 to 30 times the length of the recording paper 180 in the conveyance direction, the ink attached to the conveyance driven roller can be sufficiently obtained. Can be removed.

  In some inkjet recording apparatuses 10, the height of the discharge driven roller can be changed according to the thickness of the recording paper 180 to be handled. In such an ink jet recording apparatus 10, the discharge driven roller can be pressed as close as possible to the discharge drive roller 230 and strongly pressed against the blank recording paper 180 during the ink removal operation. Accordingly, the contact portion 239 of the discharge driven roller can be deeply penetrated into the recording paper 180.

  By such control, the peripheral surface of the discharge driven roller can be wiped without any problem, and the recording paper 180 can be wiped more strongly. In addition, the wiping range can be expanded in the radial direction of the discharge driven roller. Even in the ink jet recording apparatus 10 that does not have the function of changing the discharge driven roller, the same effect can be obtained by using the thick recording paper 180 during the ink removing operation.

  As described above in detail, the liquid ejecting apparatus according to the present invention has a function of removing the liquid adhering to the transport driven roller or the residue thereof using the recording paper. Therefore, there is no need to expose the transport driven roller for liquid removal. In addition, since the recording operation can be performed with a clean conveyance driven roller, high-quality image recording can be performed.

  The ink jet recording apparatus has been described as an example. Specific examples of the liquid ejecting apparatus to which the present invention can be applied include a color material ejecting apparatus, an organic EL display, and an FED (surface emitting) in the production of a color filter for a liquid crystal display. Examples thereof include an electrode forming apparatus in the production of a display) and the like, a sample ejection head used for biochip production, and the like.

  The technical scope of the present invention is not limited to the scope described in the above embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

FIG. 2 is a perspective view illustrating an overall structure of the ink jet recording apparatus 10. FIG. 3 is an exploded perspective view in which the transport mechanism 20 is mainly extracted from the ink jet recording apparatus 10. The figure which expands and shows the discharge part 160 partially. FIG. 6 is a longitudinal sectional view of the discharge unit 160 cut along a plane parallel to the opposed driven roller 232. The perspective view which shows independently the shape of a discharge driven roller. 3 is a schematic diagram illustrating a structure of a control unit 300 of the ink jet recording apparatus 10. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Inkjet recording apparatus, 20 conveyance mechanism, 100 lower case, 110 upper case, 120 paper support, 130 discharge tray, 140 platen, 150 conveyance part, 160 discharge part, 170 carriage, 172 recording head, 180 recording paper, 210 Feed roller, 212 Feed driven roller, 220 Conveyance drive roller, 222 Conveyance drive roller, 230 Discharge drive roller, 231 shaft, 233 Elastic roller, 232 Counter driven roller, 234 Independent driven roller, 235 Frame, 236 Resin disk part, 237 Shaft hole, 238 Metal disk part, 239 Contact part, 240 Motor, 300 Control part, 301 User, 310 Central control part, 311 Individual control part, 312 Hardware switch, 314 Print amount counter, 316 Sensors, 3 8 stored programs, 320 transport control unit, 330 a carriage control unit, 340 recording head control unit 350 feeding section, 360 a carriage motor, 370 a recording head drive unit

Claims (7)

A liquid ejecting apparatus that ejects liquid onto a recording material,
A liquid ejecting head for ejecting liquid onto one surface of the recording material while reciprocating on the recording material;
A transport unit that transports the recording object to a position facing the liquid ejecting head;
A discharge driven roller that is disposed on the one surface side of the recording material and that freely rotates; and a discharge driving roller that is disposed to face the discharge driven roller and is driven to rotate. The discharge driven roller and the A discharge unit that sandwiches the recording material with a discharge driving roller and discharges the recording material;
A liquid ejecting apparatus comprising: a control unit that ejects the recording material in a state where the ejecting operation of the liquid ejecting head is stopped based on an instruction to remove liquid from the ejected driven roller. The discharge driven roller has a disk-shaped disk part, and a plurality of needle-shaped contact parts arranged on the peripheral surface of the disk part and penetrating the recording material,
The liquid ejecting apparatus according to claim 1, wherein the contact portion penetrates deeper into the recording material based on an instruction to remove the liquid.   Based on an instruction that the liquid is to be removed, the control unit holds the recording material between the discharge driving roller and the discharge driven roller until the recording material is discharged. The liquid ejecting apparatus according to claim 1, wherein the recording material is conveyed at least one reciprocation over the entire length in the conveying direction.   Based on an instruction that the liquid is to be removed, the control unit holds the recording material between the discharge driving roller and the discharge driven roller until the recording material is discharged. The liquid ejecting apparatus according to claim 1, wherein the liquid ejecting apparatus repeats an operation of transporting at least one reciprocation in a section shorter than the entire length of the recording material in the transport direction. A recording apparatus for recording by discharging ink onto a recording material,
A recording head for ejecting ink onto one surface of the recording material while reciprocating on the recording material;
A transport unit for transporting the recording object to a position facing the recording head;
A discharge driven roller that is disposed on the one surface side of the recording material and that freely rotates; and a discharge driving roller that is disposed to face the discharge driven roller and is driven to rotate. The discharge driven roller and the A discharge unit that sandwiches the recording material with a discharge driving roller and discharges the recording material;
A recording apparatus comprising: a control unit that discharges the recording material in a state where the discharge operation of the recording head is stopped based on an instruction to remove liquid from the discharge driven roller. After the liquid is ejected by the liquid ejecting head to the recording surface of the recording material conveyed in the conveying direction by the conveying unit, the recording material is discharged by a discharge unit including a discharge driven roller that rotates in contact with the recording surface. In the liquid ejecting apparatus for discharging the liquid, a method of removing the liquid adhering to the discharge driven roller of the discharge unit,
Based on an instruction to remove the liquid from the discharge driven roller, the recording material is transported by the discharge unit in a state where the ejection operation of the liquid jet head is stopped, and the liquid adhering to the discharge driven roller is removed. A liquid removing method comprising a discharging step of discharging the recording material while adhering to the recording material. After discharging ink by a recording head to the recording surface of the recording material conveyed in the conveying direction by the conveying unit, the recording material is discharged by a discharge unit including a discharge driven roller that rotates in contact with the recording surface. In the liquid ejecting apparatus for discharging, a method for removing ink adhering to the discharge driven roller of the discharge unit,
On the basis of an instruction to remove ink from the discharge driven roller, the recording material is transported by the discharge unit in a state where the discharge operation of the recording head is stopped, and the ink adhered to the discharge driven roller is removed from the discharge driven roller. An ink removing method comprising a discharging step of discharging the recording material while adhering to the recording material.

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