Recording apparatus and method for controlling recording apparatus

Abstract

The invention relates to a recording apparatus and a control method of the recording apparatus. The recording apparatus includes: a conveyor belt; a recording unit; a de-energizing unit for de-energizing the medium; a cleaning unit that cleans the conveyor belt; and a control unit that, in a state where the recording unit is located at the separation position, rotates the conveyor belt until a contact portion of the conveyor belt, which is in contact with the static elimination unit when the static elimination unit is reset from the retracted position to the static elimination position, passes through the cleaning unit.

Description

Technical Field

[0001] The present invention relates to a recording device and a control method for the recording device. Background Art

[0002] Patent Document 1 discloses a recording device including a conveyor belt that conveys a medium by electrostatic adsorption, a recording unit that records an image on the medium, and a static elimination unit that eliminates static electricity from the medium. The static elimination unit eliminates static electricity from the medium on the conveyor belt, and the medium is easily adsorbed to the conveyor belt.

[0003] The static elimination unit is configured to move between a static elimination position in contact with the conveyor belt and a retracted position retracted from the conveyor belt. For example, when a medium jam occurs, the static elimination unit moves to the retracted position. The static elimination unit separates from the conveyor belt, making it easy to remove the medium.

[0004] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2022-116534

[0005] In such a recording device, foreign substances such as paper dust, fibers, and dust generated from the medium may adhere to the static elimination unit. When the static elimination unit moves, the foreign substances may fall from the static elimination unit onto the conveyor belt. When the conveyor belt with the foreign substances attached rotates, the foreign substances may adhere to the recording unit. When foreign substances adhere to the recording unit, the recording quality may deteriorate. Summary of the Invention

[0006] A recording device for solving the above technical problems includes: a conveyor belt that conveys a medium by electrostatic adsorption; a recording unit that records an image on the medium conveyed by the conveyor belt; a static elimination unit that is located upstream of the recording unit in the conveyance direction of the medium and eliminates static electricity from the medium conveyed to the conveyor belt; a cleaning unit that cleans the conveyor belt by contacting the conveyor belt; and a control unit. The recording unit is configured to move between a recording position close to the conveyor belt and a separation position separated from the conveyor belt, the static elimination unit is configured to move between a static elimination position in contact with the conveyor belt and a retracted position retracted from the conveyor belt. When the static elimination unit is retracted from the static elimination position to the retracted position and then reset from the retracted position to the static elimination position, the control unit rotates the conveyor belt in a state where the recording unit is located at the separation position until a contact portion of the conveyor belt that contacts when the static elimination unit is reset to the static elimination position passes through the cleaning unit.

[0007] A control method for a recording device that solves the above technical problems, wherein the recording device includes: a conveyor belt that conveys a medium by electrostatic adsorption; a recording unit that records an image on the medium conveyed by the conveyor belt; a static elimination unit that is located upstream of the recording unit in the conveying direction of the medium and eliminates static electricity from the medium conveyed to the conveyor belt; and a cleaning unit that cleans the conveyor belt by contacting the conveyor belt. The recording unit is configured to move between a recording position close to the conveyor belt and a separation position separated from the conveyor belt. The static elimination unit is configured to move between a static elimination position in contact with the conveyor belt and a retracted position retracted from the conveyor belt. The control method of the recording device includes the following steps: when the static elimination unit is retracted from the static elimination position to the retracted position and then reset from the retracted position to the static elimination position, the conveyor belt is rotated in a state where the recording unit is located at the separation position until the contact portion of the conveyor belt that comes into contact when the static elimination unit is reset to the static elimination position passes through the cleaning unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a schematic diagram showing an embodiment of a recording device.

[0009] Figure 2 is when the recording unit moves from Figure 1 the state shown to the separation position.

[0010] Figure 3 is a cross-sectional view showing the static elimination unit and the cleaning unit.

[0011] Figure 4 is when the static elimination unit moves from Figure 3 the state shown to the retracted position.

[0012] Figure 5 is a side view at the start of the displacement operation.

[0013] Figure 6 is a side view at the end of the displacement operation.

[0014] Figure 7 is a side view when the contact portion passes through the cleaning unit.

[0015] Figure 8 is a flowchart showing the recovery operation.

[0016] Figure 9 is showing the Figure 8 different recovery operations.

[0017] Figure 10 is showing the Figure 8 and Figure 9 different recovery operations.

[0018] Figure 11 is a flowchart showing recovery operations different from Figure 8 , Figure 9 and Figure 10 .

[0019] Explanation of Reference Numerals

[0020] 11: Recording device; 12: Housing; 13: Receiving section; 14: Conveyor path; 15: Conveyor section; 16: Roller; 17: Conveyor belt; 18: First pulley; 19: Second pulley; 20: Charging section; 21: Stacker; 22: Recording section; 23: Nozzle surface; 24: Nozzle; 25: Cover; 26: Control section; 27: Counting section; 28: Peeling section; 31: Cleaning section; 32: Cleaning blade; 33: Blade portion; 34: Support portion; 35: Cleaning guide section; 36: Cleaning box; 41: Static elimination mechanism; 42: Static elimination section; 43: Brush portion; 44: Bracket portion; 45: Rotating shaft; 46: Reset mechanism; 47: Link member; 48: Spring member; 49: Recovery section; 50: Recovery wiper; 51: Wiper portion; 52: Holding portion; 53: Recovery box; 99: Medium; A1: Contact portion; D1: Conveying direction; P1: Recording position; P2: Separation position; Q1: Standby position; Q2: Closed position; R1: Static elimination position; R2: Retracted position. Detailed Description of the Invention

[0021] Hereinafter, an embodiment of the recording device will be described with reference to the accompanying drawings. The recording device is, for example, an inkjet printer that records images such as characters and photographs by ejecting ink, which is an example of a liquid, onto a medium such as paper or cloth.

[0022] Recording Device

[0023] As Figure 1 shown, the recording device 11 includes a housing 12.

[0024] The recording device 11 includes a receiving section 13. The receiving section 13 is configured to receive the medium 99. The receiving section 13 is, for example, a cassette that can be pulled out from the housing 12. The receiving section 13 receives a plurality of stacked media 99.

[0025] The recording device 11 includes a conveyor path 14. The conveyor path 14 is a path for conveying the medium 99. The conveyor path 14 extends inside the housing 12. The conveyor path 14 extends, for example, in a manner that discharges the medium 99 from the receiving section 13 to the outside of the housing 12. An image is recorded while the medium 99 is being conveyed on the conveyor path 14. By conveying the medium 99 on the conveyor path 14, the medium 99 is discharged to the outside of the housing 12.

[0026] The recording device 11 includes a conveying unit 15. The conveying unit 15 is configured to convey a medium 99. The conveying unit 15 conveys the medium 99 from the housing unit 13 along a conveying path 14. The conveying unit 15 has, for example, one or more rollers 16. The rollers 16 are located at positions along the conveying path 14.

[0027] The conveying unit 15 has a conveyor belt 17. The conveyor belt 17 is configured to convey the medium 99 by electrostatic adsorption. The conveyor belt 17 causes the medium 99 to be adsorbed to the outer peripheral surface of the conveyor belt 17 by electrostatic force. Thereby, the conveyor belt 17 supports the medium 99. In one example, the conveyor belt 17 supports the medium 99 in a posture inclined with respect to the horizontal. By electrostatic adsorption, the posture of the medium 99 is stabilized.

[0028] The conveyor belt 17 conveys the medium 99 by rotation. In Figure 1 this case, the conveyor belt 17 conveys the medium 99 by rotating clockwise. The conveyor belt 17 conveys the medium 99 in the conveying direction D1. In one example, the conveying direction D1 is a direction toward the upper oblique. The conveyor belt 17 conveys in the conveying direction D1 by electrostatic adsorption so that the medium 99 does not fall.

[0029] The conveying unit 15 has one or more pulleys. In one example, the conveying unit 15 has a first pulley 18 and a second pulley 19. In one example, the first pulley 18 and the second pulley 19 are arranged in sequence along the conveying direction D1. The conveyor belt 17 is wound around the pulleys. While the pulleys rotate, the conveyor belt 17 rotates.

[0030] The recording device 11 has a charging unit 20. The charging unit 20 contacts the conveyor belt 17. Specifically, the charging unit 20 contacts the outer peripheral surface of the conveyor belt 17. The charging unit 20 charges the conveyor belt 17. By charging the conveyor belt 17 by the charging unit 20, the medium 99 is electrostatically adsorbed on the conveyor belt 17. The charging unit 20 is, for example, a roller to which a voltage is applied. The charging unit 20 rotates while the conveyor belt 17 rotates.

[0031] The recording device 11 includes a stacker 21. The medium 99 on which an image is recorded is loaded on the stacker 21. The stacker 21 is installed on the housing 12. The stacker 21 receives the medium 99 discharged out of the housing 12 through the conveying path 14.

[0032] The recording device 11 includes a recording unit 22. The recording unit 22 is configured to record an image on the medium 99. In one example, the recording unit 22 is configured to eject liquid onto the medium 99. The recording unit 22 is a so-called head. The recording unit 22 records an image on the medium 99 by ejecting liquid onto the medium 99. The recording unit 22 is not limited to liquid, and may also record an image on the medium 99 by toner, carbon paper, ink ribbon, etc.

[0033] The recording unit 22 is located along the conveyance path 14. The recording unit 22 faces the conveyor belt 17. The recording unit 22 records an image on the medium 99 conveyed by the conveyor belt 17. Specifically, the recording unit 22 ejects liquid onto the medium 99 on the conveyor belt 17.

[0034] The recording unit 22 has a nozzle surface 23. One or more nozzles 24 are formed on the nozzle surface 23. In one example, a plurality of nozzles 24 are open on the nozzle surface 23. The recording unit 22 ejects liquid from the nozzles 24. In one example, the recording unit 22 ejects liquid from the nozzles 24 in a direction inclined with respect to the horizontal and the vertical. Specifically, the recording unit 22 ejects liquid obliquely downward from the nozzles 24.

[0035] As Figure 1 and Figure 2 shown, the recording unit 22 is configured to move between a recording position P1 and a separation position P2. The recording position P1 is a position where the recording unit 22 approaches the conveyor belt 17. When recording an image on the medium 99 on the conveyor belt 17, the recording unit 22 is located at the recording position P1. The separation position P2 is a position where the recording unit 22 is separated from the conveyor belt 17. The distance between the recording unit 22 located at the separation position P2 and the conveyor belt 17 is larger than the distance between the recording unit 22 located at the recording position P1 and the conveyor belt 17. The recording unit 22 is located at the separation position P2 during standby.

[0036] The recording unit 22 is configured to move in a direction perpendicular to the nozzle surface 23. The recording unit 22 is displaced between the recording position P1 and the separation position P2 by moving in a direction perpendicular to the nozzle surface 23.

[0037] The recording apparatus 11 may also include a cover 25. The cover 25 is configured to contact the recording unit 22. Specifically, the cover 25 closes the recording unit 22 located at the separation position P2. Closing means covering the nozzles 24 by contacting the recording unit 22 with the cover 25. In one example, the cover 25 closes the recording unit 22 by contacting the nozzle surface 23. By closing, the possibility of the nozzles 24 drying out is reduced.

[0038] The cover 25 is configured to move between a standby position Q1 and a closing position Q2. The standby position Q1 is a position where the cover 25 stands by. When the recording unit 22 is located at the recording position P1, the cover 25 is located at the standby position Q1. The closing position Q2 is a position between the recording unit 22 and the conveyor belt 17. When the recording unit 22 is located at the separation position P2, the cover 25 is located at the closing position Q2. The recording unit 22 is closed by the cover 25 when it is located at the separation position P2.

[0039] The recording device 11 includes a control unit 26. The control unit 26 controls the recording device 11. The control unit 26 may be composed of one or more processors that execute various processes according to a computer program. The control unit 26 may also be composed of one or more dedicated hardware circuits such as an ASIC that executes at least a part of various processes. The control unit 26 may also be composed of a circuit including a combination of a processor and a hardware circuit. The processor includes a CPU and memories such as a RAM and a ROM. The memories store program codes or instructions configured to cause the CPU to execute processes. The memories, i.e., computer-readable media, include all readable media accessible by a general-purpose or dedicated computer.

[0040] The recording device 11 may also include a counting unit 27. The counting unit 27 is configured to count the number of sheets of the medium 99 conveyed. The counting unit 27 counts the number of sheets of the medium 99 conveyed by the conveyor belt 17. In one example, the counting unit 27 is composed of the control unit 26. The control unit 26 functions as the counting unit 27 by executing a predetermined program code. For example, the counting unit 27 counts the number of conveyed sheets based on a job received by the control unit 26. The job is a signal including an instruction to record an image. The counting unit 27 may also be a sensor that detects the medium 99 conveyed in the conveyance path 14.

[0041] As Figure 3 shown, the recording device 11 may also include a peeling unit 28. The peeling unit 28 is configured to peel the medium 99 from the conveyor belt 17. The peeling unit 28 contacts the outer peripheral surface of the conveyor belt 17. The peeling unit 28 and the second pulley 19 are located at positions sandwiching the conveyor belt 17. The peeling unit 28 peels the medium 99 from the conveyor belt 17, for example, by contacting the recorded medium 99. In one example, the peeling unit 28 is a squeegee.

[0042] The recording device 11 includes a cleaning unit 31. The cleaning unit 31 is configured to clean the conveyor belt 17. The cleaning unit 31 cleans the conveyor belt 17 by contacting it. Cleaning means removing foreign matter attached to the conveyor belt 17. In the conveyor belt 17, there are cases where foreign matters such as paper powder, fibers, and dust generated from the medium 99 adhere. When foreign matters adhere to the conveyor belt 17, it is possible that the foreign matters on the conveyor belt 17 adhere to the recording unit 22 and the medium 99 is difficult to be adsorbed to the conveyor belt 17. By cleaning the conveyor belt 17 with the cleaning unit 31, the possibility of such a situation occurring is reduced.

[0043] The cleaning unit 31 contacts the conveyor belt 17. The cleaning unit 31 contacts the outer peripheral surface of the conveyor belt 17. In one example, the cleaning unit 31 contacts a portion of the conveyor belt 17 that moves in a direction opposite to the conveyance direction D1. The cleaning unit 31 cleans a portion of the conveyor belt 17 immediately before adsorbing the medium 99. Thereby, the conveyor belt 17 can adsorb the medium 99 at the portion immediately after being cleaned by the cleaning unit 31.

[0044] The cleaning unit 31 has a cleaning blade 32. The cleaning blade 32 is in contact with the conveyor belt 17. Specifically, the cleaning blade 32 is in contact with the outer peripheral surface of the conveyor belt 17. The cleaning blade 32 scrapes foreign matter from the conveyor belt 17.

[0045] The cleaning blade 32 has a blade portion 33 and a support portion 34. The blade portion 33 is in contact with the outer peripheral surface of the conveyor belt 17. The blade portion 33 is formed of, for example, a resin sheet. The support portion 34 supports the blade portion 33.

[0046] The cleaning unit 31 has a cleaning guide portion 35. The cleaning guide portion 35 supports the conveyor belt 17. The cleaning guide portion 35 is in contact with the inner peripheral surface of the conveyor belt 17. The cleaning guide portion 35 and the cleaning blade 32 are located at positions sandwiching the conveyor belt 17. The cleaning guide portion 35 supports the portion of the conveyor belt 17 that is pressed by the cleaning blade 32. Thereby, the cleaning blade 32 can be in strong contact with the conveyor belt 17, and thus it is easy to remove foreign matter from the conveyor belt 17.

[0047] The cleaning unit 31 has a cleaning box 36. The cleaning box 36 is located at a position to receive the foreign matter scraped by the cleaning blade 32. The cleaning box 36 houses the foreign matter scraped by the cleaning blade 32. The cleaning box 36 supports the cleaning blade 32. Specifically, the support portion 34 is fixed to the cleaning box 36.

[0048] The recording device 11 includes a static elimination mechanism 41. The static elimination mechanism 41 is configured to eliminate static electricity from the medium 99. Specifically, the static elimination mechanism 41 eliminates static electricity from the medium 99 on the conveyor belt 17. When the medium 99 adheres to the conveyor belt 17, it is charged in the same manner as the conveyor belt 17. At this time, the medium 99 is charged in a manner that reduces the adsorption force of the conveyor belt 17. By eliminating static electricity from the medium 99 by the static elimination mechanism 41, the adsorption force of the conveyor belt 17 can be maintained.

[0049] The static elimination mechanism 41 has a static elimination portion 42. The static elimination portion 42 eliminates static electricity from the medium 99 conveyed to the conveyor belt 17. The static elimination portion 42 eliminates static electricity from the medium 99 by coming into contact with the medium 99 on the conveyor belt 17.

[0050] The static elimination portion 42 is located upstream of the recording portion 22 in the conveying direction D1. The static elimination portion 42 comes into contact with a portion of the conveyor belt 17 between the portion wound around the first pulley 18 and the portion facing the recording portion 22. The static elimination portion 42 eliminates static electricity from the medium 99 just after it is adsorbed by the conveyor belt 17. Thereby, in a state where the medium 99 is strongly adsorbed to the conveyor belt 17, the recording portion 22 can record an image on the medium 99.

[0051] The charge removing unit 42 has a brush portion 43 and a support portion 44. The brush portion 43 is the portion that contacts the medium 99. The brush portion 43 includes, for example, conductive resin fibers. By bringing the brush portion 43 into contact with the medium 99, charge is removed from the medium 99. In the brush portion 43, the medium 99 is discharged, and on the other hand, foreign matter adheres. The support portion 44 holds the brush portion 43.

[0052] The charge removing unit 42 may also have a rotating shaft 45. The charge removing unit 42 is configured to rotate about the rotating shaft 45. The rotating shaft 45 is configured to rotate integrally with the brush portion 43, for example.

[0053] As Figure 3 And Figure 4 shown, the charge removing unit 42 is configured to move between a charge removing position R1 and a retracted position R2. The charge removing position R1 is the position where the medium 99 is discharged. In the charge removing position R1, the charge removing unit 42 contacts the conveyor belt 17. In the charge removing position R1, the charge removing unit 42 may contact the medium 99 on the conveyor belt 17. The charge removing unit 42 is located at the charge removing position R1 when an image is recorded on the medium 99. For example, when the recording unit 22 is located at the recording position P1, the charge removing unit 42 is located at the charge removing position R1. The charge removing unit 42 is usually located at the charge removing position R1. The retracted position R2 is the position where the charge removing unit 42 retracts from the conveyor belt 17. In the retracted position R2, the charge removing unit 42 does not contact the conveyor belt 17.

[0054] The charge removing unit 42 is displaced from the charge removing position R1 to the retracted position R2 at a predetermined timing. For example, when maintenance of the recording device 11 is required, the charge removing unit 42 is located at the retracted position R2. For example, when a jam of the medium 99 occurs on the conveyor belt 17, the charge removing unit 42 is displaced from the charge removing position R1 to the retracted position R2. For example, when foreign matter is recovered to a recovery unit 49 described later, the charge removing unit 42 is displaced from the charge removing position R1 to the retracted position R2. After the charge removing unit 42 retracts from the charge removing position R1 to the retracted position R2, it is reset from the retracted position R2 to the charge removing position R1.

[0055] The charge removing unit 42 moves between the charge removing position R1 and the retracted position R2 by rotating about the rotating shaft 45. In Figure 3 it, the charge removing unit 42 rotates clockwise when being displaced from the charge removing position R1 to the retracted position R2. The charge removing unit 42 rotates counterclockwise when being displaced from the retracted position R2 to the charge removing position R1. The charge removing unit 42 may also be configured to be displaced to the charge removing position R1 and the retracted position R2 by linear movement, for example. The charge removing unit 42 is displaced by the power of a motor (not shown), for example.

[0056] The rotation direction of the charge removing unit 42 when it is reset from the retracted position R2 to the charge removing position R1 is opposite to the rotation direction of the conveyor belt 17. InFigure 3 In this case, when the electrifying unit 42 is displaced from the retracted position R2 to the electrifying position R1, the rotation direction is counterclockwise. In contrast, the rotation direction of the conveyor belt 17 is clockwise. The electrifying unit 42 contacts the conveyor belt 17 in the middle of being displaced from the retracted position R2 to the electrifying position R1. That is, the electrifying unit 42 contacts the conveyor belt 17 before moving to the electrifying position R1. As the conveyor belt 17 rotates, the electrifying unit 42 receives frictional force from the conveyor belt 17 and is displaced from the retracted position R2 to the electrifying position R1. Therefore, the electrifying unit 42 is easily reset from the retracted position R2 to the electrifying position R1 by contacting the rotating conveyor belt 17.

[0057] The electrifying mechanism 41 may also have a reset mechanism 46. The reset mechanism 46 is a mechanism for resetting the electrifying unit 42 from the retracted position R2 to the electrifying position R1. For example, the reset mechanism 46 imparts power to the electrifying unit 42 to rotate the electrifying unit 42 in the direction of displacement from the retracted position R2 to the electrifying position R1. Thereby, the electrifying unit 42 is easily reset from the retracted position R2 to the electrifying position R1.

[0058] The reset mechanism 46 has a link member 47 and a spring member 48. The link member 47 is attached to the electrifying unit 42. Specifically, the link member 47 is attached to the electrifying unit 42 so as to rotate integrally with the rotating shaft 45. The spring member 48 is connected to the link member 47. For example, one end of the spring member 48 is connected to the link member 47, and the other end of the spring member 48 is connected to the housing 12. The spring member 48 stretches the link member 47. Specifically, the spring member 48 stretches the link member 47 so that the electrifying unit 42 rotates in the direction of displacement from the retracted position R2 to the electrifying position R1. In Figure 3 this case, the spring member 48 stretches the link member 47 so that the link member 47 rotates counterclockwise.

[0059] The electrifying mechanism 41 may also have a recovery unit 49. The recovery unit 49 is configured to recover foreign matter from the electrifying unit 42. In one example, the recovery unit 49 recovers foreign matter from the electrifying unit 42 by contacting the electrifying unit 42 that moves between the electrifying position R1 and the retracted position R2. The recovery unit 49 recovers foreign matter from the electrifying unit 42, thereby maintaining the electrifying performance of the electrifying unit 42.

[0060] The recovery unit 49 has a recovery wiper 50. The recovery wiper 50 recovers foreign matter from the electrifying unit 42 by contacting the electrifying unit 42. Specifically, the recovery wiper 50 recovers foreign matter attached to the brush portion 43 by contacting the brush portion 43. For example, the recovery unit 49 may also recover foreign matter from the electrifying unit 42 by sucking the brush portion 43.

[0061] The recovery wiper 50 has a wiper portion 51 and a holding portion 52. The wiper portion 51 contacts the static elimination portion 42. Specifically, the wiper portion 51 contacts the brush portion 43 during the displacement of the static elimination portion 42. The wiper portion 51 contacts the brush portion 43 during the process of the static elimination portion 42 displacing from the static elimination position R1 to the retracted position R2 and during the process of the static elimination portion 42 displacing from the retracted position R2 to the static elimination position R1. The wiper portion 51 is located at a position overlapping the movement locus of the brush portion 43. The wiper portion 51 is formed of, for example, a resin sheet. The holding portion 52 holds the wiper portion 51.

[0062] The recovery portion 49 may also have a recovery box 53. The recovery box 53 is located at a position to receive the foreign matter recovered by the recovery wiper 50. The recovery box 53 receives the foreign matter falling from the brush portion 43 through the contact of the recovery wiper 50 with the brush portion 43. The recovery box 53 houses the foreign matter scraped by the recovery wiper 50. The recovery box 53 supports the recovery wiper 50. Specifically, the holding portion 52 is fixed to the recovery box 53.

[0063] Operation of the recording device

[0064] Next, the operation of the recording device 11 will be described. The recording device 11 executes a predetermined operation through the control unit 26.

[0065] The control unit 26 executes a displacement operation. The displacement operation is an operation in which the static elimination portion 42 displaces from the static elimination position R1 to the retracted position R2 and then displaces from the retracted position R2 to the static elimination position R1. The displacement operation is an operation in which the static elimination portion 42 makes a round trip from the static elimination position R1 to the static elimination position R1. During the displacement operation, the static elimination portion 42 may, after displacing from the static elimination position R1 to the retracted position R2, leave an interval and displace from the retracted position R2 to the static elimination position R1. During the displacement operation, the static elimination portion 42 may, after displacing from the static elimination position R1 to the retracted position R2, displace from the retracted position R2 to the static elimination position R1 without interruption. For example, in the case of recovering foreign matter from the static elimination portion 42, the control unit 26 executes the displacement operation. By executing the displacement operation, the static elimination portion 42 contacts the recovery wiper 50. Thereby, along with the execution of the displacement operation, the recovery portion 49 recovers foreign matter from the static elimination portion 42.

[0066] The displacement operation is not limited to an operation in which the static elimination portion 42 makes one round trip, and may be an operation in which the static elimination portion 42 makes multiple round trips. In this case, since the number of times the static elimination portion 42 contacts the recovery wiper 50 increases, it is easy to remove foreign matter from the static elimination portion 42.

[0067] The control unit 26 performs a displacement operation at a predetermined timing. The control unit 26 recovers foreign matter from the static elimination unit 42 at a predetermined timing. In one example, when the number of conveyed sheets counted by the counting unit 27 reaches a predetermined number, the control unit 26 performs a displacement operation. The predetermined number is, for example, the number of sheets expected to accumulate foreign matter in the brush portion 43.

[0068] In the recording apparatus 11, when performing a displacement operation, foreign matter may adhere to the conveyor belt 17. When the static elimination unit 42 is displaced, foreign matter may fall from the brush portion 43 onto the conveyor belt 17. When the static elimination unit 42 is displaced from the static elimination position R1 to the retracted position R2, foreign matter may adhere to the conveyor belt 17. When the static elimination unit 42 is displaced from the retracted position R2 to the static elimination position R1, foreign matter may adhere to the conveyor belt 17. In particular, when the brush portion 43 is separated from the conveyor belt 17 and when the brush portion 43 is in contact with the conveyor belt 17, foreign matter easily adheres to the conveyor belt 17.

[0069] The control unit 26 performs a cleaning operation while performing a displacement operation. That is, when the static elimination unit 42 is retracted from the static elimination position R1 to the retracted position R2 and then the static elimination unit 42 is reset from the retracted position R2 to the static elimination position R1, the control unit 26 performs a cleaning operation. The cleaning operation is an operation of removing foreign matter adhering to the conveyor belt 17 due to the displacement operation from the conveyor belt 17. The control unit 26 rotates the conveyor belt 17 during the cleaning operation. Thereby, the cleaning unit 31 recovers foreign matter from the conveyor belt 17. During the cleaning operation, after the control unit 26 recovers foreign matter from the conveyor belt 17, the control unit 26 stops the conveyor belt 17. Through the cleaning operation, the conveyor belt 17 can convey the medium 99 in a state where foreign matter is removed.

[0070] The control unit 26 starts the cleaning operation at a predetermined timing with respect to the displacement operation.

[0071] The control unit 26 may also start the cleaning operation before the displacement operation starts. For example, the control unit 26 may start the cleaning operation before starting the displacement operation when an execution instruction for the displacement operation is input. The control unit 26 may also start the rotation of the conveyor belt 17 before the static elimination unit 42 is retracted from the static elimination position R1 to the retracted position R2. That is, the control unit 26 may retract the static elimination unit 42 from the static elimination position R1 to the retracted position R2 after starting the rotation of the conveyor belt 17.

[0072] The control unit 26 may also start the cleaning operation during the displacement operation. For example, the control unit 26 may start the rotation of the conveyor belt 17 after the static elimination unit 42 is retracted from the static elimination position R1 to the retracted position R2. Specifically, the control unit 26 may start the rotation of the conveyor belt 17 after the static elimination unit 42 is displaced from the static elimination position R1 to the retracted position R2 and before the static elimination unit 42 is reset from the retracted position R2 to the static elimination position R1.

[0073] The control unit 26 may also start the cleaning operation after the displacement operation. For example, the control unit 26 may also start the rotation of the conveyor belt 17 after retracting the static elimination unit 42 from the static elimination position R1 to the retracted position R2. Specifically, the control unit 26 may also start the rotation of the conveyor belt 17 after retracting the static elimination unit 42 from the static elimination position R1 to the retracted position R2 and then resetting the static elimination unit 42 from the retracted position R2 to the static elimination position R1.

[0074] The control unit 26 may also start the cleaning operation simultaneously with the displacement operation. For example, the control unit 26 may also start the rotation of the conveyor belt 17 while retracting the static elimination unit 42 from the static elimination position R1 to the retracted position R2. The control unit 26 may also start the rotation of the conveyor belt 17 while resetting the static elimination unit 42 from the retracted position R2 to the static elimination position R1.

[0075] By performing the cleaning operation in parallel with the displacement operation, the foreign matter falling from the static elimination unit 42 is dispersed on the conveyor belt 17. That is, the possibility of foreign matter concentrating at one place on the conveyor belt 17 is reduced. Thereby, the foreign matter adhering to the conveyor belt 17 is easily removed by the cleaning unit 31. In addition, by performing the cleaning operation in parallel with the displacement operation, the time required until the cleaning operation ends is shortened compared with the case where the cleaning operation is performed after the displacement operation ends.

[0076] As Figure 5 、 Figure 6 and Figure 7 shown, the control unit 26 rotates the conveyor belt 17 by a predetermined amount during the cleaning operation. Specifically, during the cleaning operation, the control unit 26 rotates the conveyor belt 17 until the contact portion A1 passes through the cleaning unit 31. The contact portion A1 is a part of the conveyor belt 17. The contact portion A1 is the portion of the conveyor belt 17 that the static elimination unit 42 contacts at the end of the displacement operation. That is, the contact portion A1 is the portion of the conveyor belt 17 that the static elimination unit 42 contacts when it is reset to the static elimination position R1. When the static elimination unit 42 reciprocates multiple times during the displacement operation, the contact portion A1 is the portion of the conveyor belt 17 that the static elimination unit 42 contacts when it is finally reset to the static elimination position R1. By passing the contact portion A1 through the cleaning unit 31, the foreign matter adhering to the conveyor belt 17 during the displacement operation is removed by the cleaning unit 31. Therefore, the possibility of conveying the medium 99 with foreign matter adhering to the conveyor belt 17 is reduced. The control unit 26 stops the conveyor belt 17 after the contact portion A1 has passed through the cleaning unit 31.

[0077] The control unit 26 may also rotate the conveyor belt 17 in such a way that the contact portion A1 passes through the cleaning unit 31 multiple times during the cleaning operation. In this case, foreign matter is further removed from the conveyor belt 17. After the contact portion A1 has passed through the cleaning unit 31 multiple times, the control unit 26 stops the conveyor belt 17.

[0078] The control unit 26 may rotate the conveyor belt 17 after a predetermined time has passed since the static elimination unit 42 has been reset from the retreat position R2 to the static elimination position R1. In this case, the contact portion A1 passes through the cleaning unit 31. Alternatively, the conveyor belt 17 may be rotated after a predetermined time has passed since the static elimination unit 42 has been reset from the retreat position R2 to the static elimination position R1, so that the contact portion A1 passes through the cleaning unit 31 multiple times.

[0079] When the control unit 26 performs the cleaning operation, the recording unit 22 is located at the separated position P2. That is, the control unit 26 performs the cleaning operation with the recording unit 22 located at the separated position P2. Before starting the cleaning operation, the control unit 26 moves the recording unit 22 to the separated position P2. The control unit 26 rotates the conveyor belt 17 with the recording unit 22 located at the separated position P2.

[0080] During the cleaning operation, the conveyor belt 17 rotates, so that foreign matter on the conveyor belt 17 passes between the recording section 22 and the conveyor belt 17. At this time, when the recording section 22 is located at the recording position P1, the foreign matter on the conveyor belt 17 may adhere to the recording section 22. When foreign matter adheres to the recording section 22, it may affect the recording quality. In particular, when foreign matter adheres to the nozzle surface 23, the nozzle 24, etc., it is possible that the liquid cannot be ejected normally from the nozzle 24. By performing the cleaning operation in a state where the recording section 22 is located at the separation position P2, the possibility of foreign matter adhering to the recording section 22 is reduced. In particular, in one example, the recording section 22 is closed when it is located at the separation position P2, so that foreign matter is more difficult to adhere to the recording section 22.

[0081] Next, the recovery action is described. The recovery action is an action of recovering foreign matter from the static elimination unit 42. The recovery action is an action including a displacement action and a cleaning action. When the number of conveyed sheets counted by the counting unit 27 reaches a predetermined number of sheets, the recovery action is performed. The recovery action can also be performed based on a user's instruction. Figure 8 , Figure 9 , Figure 10 and Figure 11 The flowchart shown is an example of a recovery operation. Figure 8 The flowchart shown is used for explanation.

[0082] like Figure 8 As shown, the control unit 26 moves the recording unit 22 to the separated position P2 in step S11.

[0083] In step S12 , the control unit 26 causes the cover 25 to close the recording unit 22 .

[0084] The control unit 26 starts the cleaning operation in step S13. Specifically, the control unit 26 starts the rotation of the conveyor belt 17. That is, the control unit 26 starts the rotation of the conveyor belt 17 before retracting the static elimination unit 42 to the retracted position R2.

[0085] The control unit 26 starts the displacement operation in step S14. Specifically, the control unit 26 retracts the static elimination unit 42 from the static elimination position R1 to the retracted position R2.

[0086] The control unit 26 ends the displacement operation in step S15. Specifically, the control unit 26 resets the static elimination unit 42 from the retracted position R2 to the static elimination position R1. At this time, the contact portion A1 is determined on the conveyor belt 17.

[0087] The control unit 26 ends the cleaning operation in step S16. Specifically, the control unit 26 rotates the conveyor belt 17 before the contact portion A1 passes through the cleaning unit 31. After the contact portion A1 has passed through the cleaning unit 31, the control unit 26 stops the conveyor belt 17. After the control unit 26 finishes the process of step S16, it ends the recovery operation.

[0088] Next, Figure 9 、 Figure 10 and Figure 11 the flowcharts shown will be described. Figure 9 、 Figure 10 and Figure 11 Compared with the flowchart shown in Figure 8 , the execution timing of the cleaning operation relative to the displacement operation is different for each of the flowcharts shown in Figure 9 , Figure 10 and Figure 11 . Therefore, for each of the flowcharts shown in Figure 8 , the points different from the flowchart shown in

[0089] As shown in Figure 9 , the control unit 26 executes step S21 after step S12. That is, the control unit 26 starts the displacement operation after closing the cover 25 of the recording unit 22. At this time, the control unit 26 retracts the static elimination unit 42 from the static elimination position R1 to the retracted position R2.

[0090] The control unit 26 starts the cleaning operation in step S22. Specifically, the control unit 26 starts the rotation of the conveyor belt 17. That is, the control unit 26 starts the rotation of the conveyor belt 17 after retracting the static elimination unit 42 to the retracted position R2.

[0091] The control unit 26 ends the displacement operation in step S23. Specifically, the control unit 26 resets the static elimination unit 42 from the retracted position R2 to the static elimination position R1. At this time, the contact portion A1 is determined on the conveyor belt 17.

[0092] The control unit 26 ends the cleaning operation in step S24. Specifically, the control unit 26 rotates the conveyor belt 17 before the contact portion A1 passes through the cleaning unit 31. The control unit 26 stops the conveyor belt 17 after the contact portion A1 has passed through the cleaning unit 31. After completing the processing of step S24, the control unit 26 ends the recovery operation.

[0093] As Figure 10 shown, the control unit 26 executes step S31 after step S12. That is, after closing the cover 25 over the recording unit 22, the control unit 26 starts the displacement operation. At this time, the control unit 26 retracts the static elimination unit 42 from the static elimination position R1 to the retracted position R2.

[0094] The control unit 26 ends the displacement operation in step S32. Specifically, the control unit 26 resets the static elimination unit 42 from the retracted position R2 to the static elimination position R1. At this time, the contact portion A1 is determined on the conveyor belt 17.

[0095] The control unit 26 starts the cleaning operation in step S33. Specifically, the control unit 26 starts the rotation of the conveyor belt 17. That is, after resetting the static elimination unit 42 to the static elimination position R1, the control unit 26 starts the rotation of the conveyor belt 17.

[0096] The control unit 26 ends the cleaning operation in step S34. Specifically, the control unit 26 rotates the conveyor belt 17 before the contact portion A1 passes through the cleaning unit 31. The control unit 26 stops the conveyor belt 17 after the contact portion A1 has passed through the cleaning unit 31. After completing the processing of step S34, the control unit 26 ends the recovery operation.

[0097] As Figure 11 shown, the control unit 26 executes step S41 after step S12. That is, after closing the cover 25 over the recording unit 22, the control unit 26 starts the displacement operation and the cleaning operation. In short, while retracting the static elimination unit 42 from the static elimination position R1 to the retracted position R2, the control unit 26 starts the rotation of the conveyor belt 17.

[0098] The control unit 26 ends the displacement operation in step S42. Specifically, the control unit 26 resets the static elimination unit 42 from the retracted position R2 to the static elimination position R1. At this time, the contact portion A1 is determined on the conveyor belt 17.

[0099] The control unit 26 ends the cleaning operation in step S43. Specifically, the control unit 26 stops the conveyor belt 17 after the contact portion A1 has passed through the cleaning unit 31. After completing the processing of step S43, the control unit 26 ends the recovery operation.

[0100] Functions and effects of the embodiment

[0101] Next, the functions and effects of the above embodiments will be described.

[0102] (1) When the control unit 26 causes the charge removal unit 42 to retract from the charge removal position R1 to the retracted position R2 and then causes the charge removal unit 42 to reset from the retracted position R2 to the charge removal position R1, the conveyor belt 17 is rotated in a state where the recording unit 22 is located at the separation position P2 until the contact portion A1 passes through the cleaning unit 31. In the case where the charge removal unit 42 retracts from the charge removal position R1 to the retracted position R2 and in the case where the charge removal unit 42 resets from the retracted position R2 to the charge removal position R1, foreign matter is likely to adhere to the conveyor belt 17 from the charge removal unit 42. By rotating the conveyor belt 17, the foreign matter adhering to the conveyor belt 17 is removed by the cleaning unit 31. According to the above configuration, since the conveyor belt 17 rotates in a state where the recording unit 22 is located at the separation position P2, the foreign matter adhering to the conveyor belt 17 is difficult to adhere to the recording unit 22. Therefore, the possibility of foreign matter adhering to the recording unit 22 is reduced.

[0103] (2) After the control unit 26 causes the charge removal unit 42 to retract from the charge removal position R1 to the retracted position R2, the rotation of the conveyor belt 17 is started in a state where the recording unit 22 is located at the separation position P2. According to the above configuration, the foreign matter adhering to the conveyor belt 17 when the charge removal unit 42 retracts from the charge removal position R1 to the retracted position R2 can be effectively removed by the cleaning unit 31.

[0104] (3) While the control unit 26 causes the charge removal unit 42 to retract from the charge removal position R1 to the retracted position R2, the rotation of the conveyor belt 17 is started in a state where the recording unit 22 is located at the separation position P2. According to the above configuration, the foreign matter adhering to the conveyor belt 17 when the charge removal unit 42 retracts from the charge removal position R1 to the retracted position R2 can be effectively removed by the cleaning unit 31.

[0105] (4) After starting the rotation of the conveyor belt 17 in a state where the recording unit 22 is located at the separation position P2, the control unit 26 causes the charge removal unit 42 to retract from the charge removal position R1 to the retracted position R2. According to the above configuration, the foreign matter dropped when the charge removal unit 42 retracts from the charge removal position R1 to the retracted position R2 can be dispersed on the conveyor belt 17. That is, the possibility of foreign matter concentrating at one place on the conveyor belt 17 is reduced. Thus, the foreign matter adhering to the conveyor belt 17 is easily removed by the cleaning unit 31.

[0106] (5) After the contact portion A1 has passed through the cleaning unit 31, the control unit 26 stops the conveyor belt 17. According to the above configuration, the conveyor belt 17 can convey the medium 99 in a state where foreign matter has been removed.

[0107] (6) After the contact portion A1 has passed through the cleaning unit 31 multiple times, the control unit 26 stops the conveyor belt 17. According to the above configuration, the foreign matter adhering to the conveyor belt 17 can be repeatedly removed by the cleaning unit 31.

[0108] (7) The charge removal unit 42 is configured to move between the charge removal position R1 and the retracted position R2 by rotating about the rotation axis 45. According to the above configuration, with a simple configuration, the charge removal unit 42 can move between the charge removal position R1 and the retracted position R2.

[0109] (8) The rotation direction of the conveyor belt 17 is opposite to the rotation direction of the charge removal unit 42 when the charge removal unit 42 is reset from the retracted position R2 to the charge removal position R1. When the charge removal unit 42 is being reset from the retracted position R2 to the charge removal position R1, the charge removal unit 42 contacts the conveyor belt 17. At this time, the charge removal unit 42 receives a frictional force from the rotating conveyor belt 17. According to the above configuration, the charge removal unit 42 can be easily reset to the charge removal position R1 due to the frictional force received from the conveyor belt 17.

[0110] (9) The recovery unit 49 contacts the charge removal unit 42 that moves between the charge removal position R1 and the retracted position R2, and recovers foreign matter from the charge removal unit 42. According to the above configuration, the possibility of the charge removal performance of the charge removal unit 42 being reduced is decreased.

[0111] (10) When the number of conveyed sheets counted by the counting unit 27 reaches a predetermined number, the control unit 26 causes the charge removal unit 42 to retract from the charge removal position R1 to the retracted position R2. According to the above configuration, the recovery unit 49 can recover foreign matter from the charge removal unit 42 at an appropriate timing.

[0112] (11) The recording unit 22 is closed by the cover 25 when it is in the separation position P2. According to the above configuration, in a state where the recording unit 22 is closed by the cover 25, the conveyor belt 17 can be rotated until the contact portion A1 passes through the cleaning unit 31. Thereby, the possibility of foreign matter on the conveyor belt 17 adhering to the recording unit 22 can be further reduced.

[0113] Modification example

[0114] The above-described embodiment can be implemented with the following modifications. The above-described embodiment and the following modification examples can be implemented in combination with each other within a range where there is no technical contradiction.

[0115] The control unit 26 may also displace the recording unit 22 to the separation position P2 after the start of the displacement operation during the recovery operation. During the recovery operation, it is only necessary for the recording unit 22 to be in the separation position P2 before the start of the cleaning operation. Thereby, the possibility of foreign matter on the conveyor belt 17 adhering to the recording unit 22 is reduced.

[0116] The liquid ejected from the recording unit 22 is not limited to ink. For example, it may also be a liquid in which particles of a functional material are dispersed or mixed in a liquid, etc. For example, the recording unit 22 may also eject a liquid in which materials such as electrode materials or pixel materials for manufacturing liquid crystal displays, electroluminescent displays, and surface-emitting displays are contained in a dispersed or dissolved form.

[0117] Technical idea

[0118] Hereinafter, the technical ideas and their effects grasped from the above-described embodiments and modification examples will be described.

[0119] (A) The recording apparatus includes: a conveyor belt that conveys a medium by electrostatic adsorption; a recording unit that records an image on the medium conveyed by the conveyor belt; a deelectrification unit that is located upstream of the recording unit in the conveyance direction of the medium and deelectrifies the medium conveyed to the conveyor belt; a cleaning unit that cleans the conveyor belt by contacting the conveyor belt; and a control unit. The recording unit is configured to move between a recording position close to the conveyor belt and a separation position separated from the conveyor belt. The deelectrification unit is configured to move between a deelectrification position in contact with the conveyor belt and a retracted position retracted from the conveyor belt. When the deelectrification unit is retracted from the deelectrification position to the retracted position and then reset from the retracted position to the deelectrification position, the control unit rotates the conveyor belt in a state where the recording unit is located at the separation position until a contact portion of the conveyor belt that comes into contact when the deelectrification unit is reset to the deelectrification position passes through the cleaning unit. When the deelectrification unit is retracted from the deelectrification position to the retracted position and when the deelectrification unit is reset from the retracted position to the deelectrification position, foreign matter is likely to adhere to the conveyor belt from the deelectrification unit. By rotating the conveyor belt, the foreign matter adhering to the conveyor belt is removed by the cleaning unit. According to the above configuration, since the conveyor belt rotates in a state where the recording unit is located at the separation position, the foreign matter adhering to the conveyor belt is less likely to adhere to the recording unit. Therefore, the possibility of foreign matter adhering to the recording unit is reduced.

[0120] (B) In the above-described recording apparatus, it may also be that the control unit starts the rotation of the conveyor belt in a state where the recording unit is located at the separation position after retracting the deelectrification unit from the deelectrification position to the retracted position. According to the above configuration, the cleaning unit can effectively remove the foreign matter adhering to the conveyor belt when the deelectrification unit is retracted from the deelectrification position to the retracted position.

[0121] (C) In the above-described recording apparatus, it may also be that the control unit starts the rotation of the conveyor belt in a state where the recording unit is located at the separation position while retracting the deelectrification unit from the deelectrification position to the retracted position. According to the above configuration, the cleaning unit can effectively remove the foreign matter adhering to the conveyor belt when the deelectrification unit is retracted from the deelectrification position to the retracted position.

[0122] (D) In the above-described recording apparatus, it is also possible that, after the control unit starts the rotation of the conveyor belt while the recording unit is in the separated position, the static elimination unit is retracted from the static elimination position to the retracted position. According to the above configuration, foreign matter that falls when the static elimination unit is retracted from the static elimination position to the retracted position can be dispersed on the conveyor belt. That is, the possibility of foreign matter concentrating at one place on the conveyor belt is reduced. Thereby, foreign matter attached to the conveyor belt is easily removed by the cleaning unit.

[0123] (E) In the above-described recording apparatus, it is also possible that the control unit stops the conveyor belt after the contact portion has passed through the cleaning unit. According to the above configuration, the conveyor belt can convey the medium in a state where foreign matter has been removed.

[0124] (F) In the above-described recording apparatus, it is also possible that the control unit stops the conveyor belt after the contact portion has passed through the cleaning unit multiple times. According to the above configuration, foreign matter attached to the conveyor belt can be repeatedly removed by the cleaning unit.

[0125] (G) In the above-described recording apparatus, it is also possible that the static elimination unit has: a rotating shaft, and the static elimination unit is configured to move between the static elimination position and the retracted position by rotating about the rotating shaft. According to the above configuration, with a simple configuration, the static elimination unit can move between the static elimination position and the retracted position.

[0126] (H) In the above-described recording apparatus, it is also possible that the rotation direction of the conveyor belt is a direction opposite to the rotation direction of the static elimination unit when the static elimination unit is reset from the retracted position to the static elimination position. During the process of the static elimination unit being reset from the retracted position to the static elimination position, the static elimination unit comes into contact with the conveyor belt. At this time, the static elimination unit receives frictional force from the rotating conveyor belt. According to the above configuration, the static elimination unit is easily reset to the static elimination position by the frictional force received from the conveyor belt.

[0127] (I) The above-described recording apparatus may also be provided with a recovery unit that recovers foreign matter from the static elimination unit, and the recovery unit contacts the static elimination unit that moves between the static elimination position and the retracted position to recover foreign matter from the static elimination unit. According to the above configuration, the possibility of the static elimination performance of the static elimination unit being reduced is decreased.

[0128] (J) The above-described recording apparatus may also be provided with a counting unit that counts the number of sheets of the medium conveyed, and when the number of sheets conveyed counted by the counting unit reaches a predetermined number, the control unit retracts the static elimination unit from the static elimination position to the retracted position. According to the above configuration, the recovery unit can recover foreign matter from the static elimination unit at an appropriate timing.

[0129] The above-described recording apparatus may also include a lid that closes the recording unit. The recording unit is configured to eject liquid onto a medium, and the recording unit is closed by the lid when it is in the separation position. According to the above configuration, the conveyor belt can be rotated before the contact portion passes through the cleaning unit while the recording unit is closed by the lid. As a result, the possibility of foreign matter on the conveyor belt adhering to the recording unit can be further reduced.

[0130] (L)A control method for a recording apparatus, wherein the recording apparatus includes: a conveyor belt that conveys a medium by electrostatic adsorption; a recording unit that records an image on the medium conveyed by the conveyor belt; a charge-removing unit that is located upstream of the recording unit in the conveyance direction of the medium and removes charge from the medium conveyed to the conveyor belt; and a cleaning unit that cleans the conveyor belt by contacting the conveyor belt. The recording unit is configured to move between a recording position close to the conveyor belt and a separation position separated from the conveyor belt. The charge-removing unit is configured to move between a charge-removing position in contact with the conveyor belt and a retracted position retracted from the conveyor belt. The control method of the recording apparatus includes the following steps: when the charge-removing unit is retracted from the charge-removing position to the retracted position and then reset from the retracted position to the charge-removing position, the conveyor belt is rotated in a state where the recording unit is in the separation position until the contact portion of the conveyor belt that comes into contact when the charge-removing unit is reset to the charge-removing position passes through the cleaning unit. According to the above method, the same effect as the above-described recording apparatus can be obtained.

[0131] (M)The control method of the above-described recording apparatus may also include: after the charge-removing unit is retracted from the charge-removing position to the retracted position, starting the rotation of the conveyor belt in a state where the recording unit is in the separation position. According to the above method, the same effect as the above-described recording apparatus can be obtained.

[0132] (N)The control method of the above-described recording apparatus may also include: while the charge-removing unit is retracted from the charge-removing position to the retracted position, starting the rotation of the conveyor belt in a state where the recording unit is in the separation position. According to the above method, the same effect as the above-described recording apparatus can be obtained.

[0133] (O)The control method of the above-described recording apparatus may also include: after starting the rotation of the conveyor belt in a state where the recording unit is in the separation position, retracting the charge-removing unit from the charge-removing position to the retracted position. According to the above method, the same effect as the above-described recording apparatus can be obtained.

[0134] The control method of the above recording apparatus may also include: stopping the conveyor belt after the contact portion passes through the cleaning portion. According to the above method, the same effect as the above recording apparatus can be obtained.

Claims

1. A recording device, characterized in that: have: Conveyor belts, which convey media by electrostatic adsorption; a recording unit for recording an image on a medium conveyed by the conveyor belt; a static elimination unit, located upstream of the recording unit in the conveying direction of the medium, and performing static elimination on the medium conveyed to the conveyor belt; a cleaning unit, which cleans the conveyor belt by contacting the conveyor belt; as well as Control Department, The recording unit is configured to move between a recording position close to the conveyor belt and a separation position separated from the conveyor belt. The static elimination unit is configured to move between a static elimination position in contact with the conveyor belt and a retreat position retreated from the conveyor belt. When the de-staticizing section is retracted from the de-staticizing position to the retraction position and then reset to the de-staticizing position from the retraction position, the control section rotates the conveyor belt with the recording section located at the separation position until the contact portion of the conveyor belt that was in contact with the de-staticizing section when it was reset to the de-staticizing position passes through the cleaning section.

2. The recording device according to claim 1, characterized in that The control unit starts the rotation of the conveyor belt in a state where the recording unit is located at the separated position after the control unit retreats the static eliminating unit from the static eliminating position to the retreat position.

3. The recording device according to claim 1, characterized in that The control unit causes the static elimination unit to retreat from the static elimination position to the retreat position, and starts the rotation of the conveyor belt in a state where the recording unit is located at the separated position.

4. The recording device according to claim 1, characterized in that The control unit retreats the static eliminating unit from the static eliminating position to the retreat position after the conveyor belt starts rotating in a state where the recording unit is located at the separated position.

5. The recording device according to any one of claims 1 to 4, characterized in that The control unit stops the conveyor belt after the contact portion passes through the cleaning unit.

6. The recording device according to claim 5, characterized in that The control unit stops the conveyor belt after the contact portion passes through the cleaning unit a plurality of times.

7. The recording device according to claim 1, characterized in that The static elimination unit has: Axis of rotation, The static eliminating portion is configured to move between the static eliminating position and the retreat position by rotating about the rotation axis.

8. The recording device according to claim 7, characterized in that The rotation direction of the conveyor belt is opposite to the rotation direction of the static eliminator when the static eliminator is returned from the retreat position to the static eliminator position.

9. The recording device according to claim 1, characterized in that The recording device includes a recovery unit that recovers foreign matter from the static elimination unit. The collecting portion collects foreign matter from the static eliminating portion by contacting the static eliminating portion moving between the static eliminating position and the retreat position.

10. The recording device according to claim 9, characterized in that The recording device includes a counting unit that counts the number of sheets of the medium conveyed. The control unit causes the static elimination unit to retreat from the static elimination position to the retreat position when the number of conveyed sheets counted by the counting unit reaches a predetermined number of sheets.

11. The recording device according to claim 10, characterized in that The recording device includes a cover, the cover sealing the recording unit, The recording unit is configured to eject liquid onto the medium. The recording section is closed by the cover when located at the separated position.

12. A method for controlling a recording device, characterized in that: The recording device comprises: Conveyor belts, which convey media by electrostatic adsorption; a recording unit for recording an image on a medium conveyed by the conveyor belt; a static elimination unit, located upstream of the recording unit in the conveying direction of the medium, and performing static elimination on the medium conveyed to the conveyor belt; as well as a cleaning unit, which cleans the conveyor belt by contacting the conveyor belt, The recording unit is configured to move between a recording position close to the conveyor belt and a separation position separated from the conveyor belt. The static elimination unit is configured to move between a static elimination position in contact with the conveyor belt and a retreat position retreated from the conveyor belt. The control method of the recording device includes the following steps: when the de-staticizing part is retracted from the de-staticizing position to the retraction position and then reset to the de-staticizing position from the retraction position, the conveyor belt is rotated with the recording part in the separation position until the contact portion of the conveyor belt that is in contact with the de-staticizing part when it is reset to the de-staticizing position passes through the cleaning part.

13. The control method of the recording device according to claim 12, characterized in that: The control method of the recording device includes: after the neutralization unit is retracted from the neutralization position to the retracted position, starting the rotation of the conveyor belt in a state where the recording unit is located at the separated position.

14. The recording device control method according to claim 12, characterized in that: The control method of the recording device includes: simultaneously with retracting the static eliminating section from the static eliminating position to the retracted position, starting the rotation of the conveyor belt in a state where the recording section is located at the separated position.

15. The control method of a recording device according to claim 12, characterized in that: The control method of the recording device includes: after the rotation of the conveyor belt is started in a state where the recording unit is located at the separated position, retracting the static eliminating unit from the static eliminating position to the retracted position.

16. The control method of a recording device according to any one of claims 12 to 15, characterized in that: The control method of the recording device includes stopping the conveying belt after the contact portion passes through the cleaning portion.

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