JP2022099916A - Ink jet recording device - Google Patents

Abstract

To provide an ink jet recording device capable of efficiently recovering ink at the time of flushing.SOLUTION: An ink jet recording device 1 is equipped with a recording head 51, a first carrying belt 8, and an ink receiving portion 10. The ink receiving portion 10 receives ink passing through an opening portion 82 of the first carrying belt 8 at the time of flushing when the ink is discharged to the recording head 51 at a timing different from a discharge timing with respect to paper S. The ink receiving portion 10 is equipped with a rotation body 101, and a scraping portion 102. The rotation body 101 rotates so that a surface opposing the first carrying belt 8 moves relative to the recording head 51, and the ink passing through the opening portion 82 adheres to the surface. The scraping portion 102 scrapes the ink adhered to the surface of the rotation body 101.SELECTED DRAWING: Figure 8

Description

The present invention relates to an inkjet recording device.

In the inkjet recording device, in order to reduce and prevent clogging of the nozzle due to drying of the ink, flushing (empty ejection) is performed to periodically eject the ink from the nozzle. An example of such an inkjet recording device is disclosed in Patent Document 1.

The conventional inkjet recording apparatus disclosed in Patent Document 1 prevents an increase in the viscosity of a recording head that ejects ink to a recording medium for recording, and an ink ejection port in order to obtain ejection stability of the recording head. It is equipped with a capping unit. The capping portion covers the ejection port surface of the recording head with a cap, and pressurizes the ink to forcibly discharge thickened ink and air bubbles from the ejection port to the outside. The waste liquid (ink) discharged into the cap by the ink pressurization is sucked by the pump and moved to the discharge portion.

Japanese Unexamined Patent Publication No. 8-150734

However, in the prior art, there is a problem that the waste liquid discharged into the cap is thickened ink and cannot be smoothly moved by suction by a pump. In order to smoothly move the thickened ink by suction by a pump, it is necessary to reduce the dye concentration of the ink by, for example, a cleaning liquid. In this case, a large amount of cleaning liquid is required, and the capacity of the waste liquid tank becomes large, which may increase the size of the apparatus.

The present invention has been made in view of the above points, and is an inkjet capable of efficiently recovering ink at the time of flushing in which ink is ejected to a recording head at a timing different from the timing of ejecting ink to a recording medium. It is intended to provide a recording device.

In order to solve the above problems, the inkjet recording apparatus of the present invention includes a recording head, a transport belt, and an ink receiving unit. The recording head has a plurality of nozzles for ejecting ink. The transport belt is endless and has a plurality of openings through which the ink discharged from the recording head passes, and transports the recording medium to a position facing the recording head. The ink receiving portion is arranged below the recording head across the transport belt, and is opened at the time of flushing to eject the ink to the recording head at a timing different from the timing of ejecting the ink to the recording medium. Receives the ink that has passed through the section. The ink receiving portion includes a rotating body and a scraping portion. The rotating body rotates so that the surface facing the transport belt moves relative to the recording head, and the ink that has passed through the opening adheres to the surface. The scraping portion scrapes the ink adhering to the surface of the rotating body.

According to the configuration of the present invention, the ink ejected from the recording head at the time of flushing can be recovered by using the rotating body and the scraping portion. That is, it is possible to efficiently recover the ink ejected during flushing.

It is a schematic sectional drawing of the inkjet recording apparatus of embodiment of this invention. It is a top view around the recording part and the 1st belt transport part of the inkjet recording apparatus of FIG. It is a schematic block diagram of the inkjet recording apparatus of FIG. It is explanatory drawing which shows typically the structure along the paper transfer path from the paper supply part to the 2nd belt transfer part of FIG. It is a front view around the recording part and the 1st belt transport part of FIG. It is a top view of the 1st conveyor belt of the 1st belt conveyor part of FIG. It is a top view of the 1st belt transport part of FIG. 5 in the state of removing the 1st conveyor belt. It is an enlarged front view of the ink receiving part of the 1st belt transport part of FIG. It is an enlarged front view of the ink receiving part of the 1st belt transport part of the modification.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the following contents.

FIG. 1 is a schematic cross-sectional view of the inkjet recording apparatus 1 of the embodiment. FIG. 2 is a plan view of the periphery of the recording unit 5 and the first belt transport unit 41 of the inkjet recording apparatus 1 of FIG. FIG. 3 is a schematic block diagram of the inkjet recording apparatus 1 of FIG. The inkjet recording device 1 is, for example, an inkjet recording type printer. As shown in FIGS. 1, 2, and 3, the inkjet recording device 1 includes a device main body 2, a paper supply unit 3, a paper transport unit 4, a recording unit 5, a drying unit 6, and a control unit 7. , Equipped with.

The device main body 2 includes an operation unit 21. For example, the operation unit 21 is arranged at the upper part of the front surface of the apparatus main body 2, and sets recording conditions such as the type and size of the paper (recording medium) used for recording, enlargement / reduction, necessity of double-sided recording, execution command, and the like. Is directly accepted from the user himself. It should be noted that image data, recording conditions, execution commands, and the like may be received from an external computer via a network line or the like.

The paper supply unit 3 accommodates a plurality of sheets (recording media) S, and separates and sends out the sheets S one by one at the time of recording. The paper transport unit 4 conveys the paper S fed from the paper supply unit 3 to the recording unit 5 and the drying unit 6, and further discharges the paper S after recording and drying to the paper ejection unit 22. When double-sided recording is performed, the paper transport unit 4 distributes the paper S after recording and drying on the first side to the reverse transport unit 44 by the branch portion 43, and further switches the transport direction to reverse the front and back of the paper S. It is conveyed to the recording unit 5 and the drying unit 6 again.

The paper transport unit 4 has a first belt transport unit 41 and a second belt transport unit 42. The first belt transport unit 41 and the second belt transport unit 42 adsorb and hold the paper S on the upper outer surface (surface) of the endless belt and transport the paper S. The first belt transport unit 41 is arranged below the recording unit 5 to transport the paper S. The second belt transport unit 42 is located on the downstream side in the paper transport direction with respect to the first belt transport unit 41, and is arranged in the drying unit 6 to transport the paper S.

The recording unit 5 faces the paper S that is adsorbed and held on the upper surface of the first belt transport unit 41 and is transported, and is arranged above the first belt transport unit 41 with a predetermined interval. The recording unit 5 has a line-type inkjet recording head 51. As shown in FIG. 2, the recording head 51 includes recording heads 51B, 51C, 51M, and 51Y corresponding to each of the four colors of black, cyan, magenta, and yellow. A plurality (for example, three) of the recording heads 51 of each color are arranged in a staggered manner along the paper width direction Dw orthogonal to the paper transport direction Dc.

The recording head 51 has a plurality of ink ejection nozzles 52 at the bottom thereof. The plurality of ink ejection nozzles 52 are arranged side by side along the paper width direction Dw, and can eject ink over the entire recording area on the paper S. That is, the recording head 51 has a plurality of ink ejection nozzles 52 for ejecting ink on the paper S. The recording unit 5 sequentially ejects ink from the four-color recording heads 51B, 51C, 51M, and 51Y toward the paper S conveyed by the first belt conveying unit 41, and records a full-color image or a monochrome image on the paper S. ..

The drying unit 6 is arranged on the downstream side in the paper transport direction with respect to the recording section 5, and a second belt transport section 42 is provided. The paper S on which the ink image is recorded in the recording unit 5 is sucked and held by the second belt transport unit 42 in the drying unit 6 to be conveyed, and the ink is dried.

The control unit 7 includes a CPU, other electronic circuits, and electronic components (all not shown). The CPU controls the operation of each component provided in the inkjet recording device 1 based on the control program and data stored in the storage unit 71, and performs processing related to the function of the inkjet recording device 1. Each of the paper supply unit 3, the paper transport unit 4, the recording unit 5, and the drying unit 6 receives a command individually from the control unit 7 and records on the paper S in conjunction with each other.

Further, the control unit 7 performs flushing (empty ejection) to eject ink to the recording head 51 at a timing different from the ink ejection timing (during recording) for the paper S. By flushing, clogging of the ink ejection nozzle 52 due to drying of the ink can be reduced and prevented.

The storage unit 71 is composed of a combination of a non-volatile storage device such as a program ROM (Read Only Memory) and a data ROM (not shown) and a volatile storage device such as a RAM (Random Access Memory).

FIG. 4 is an explanatory diagram schematically showing a configuration along a paper transport path from the paper supply section 3 to the second belt transport section 42 of FIG. 1. For convenience of explanation, the ink (water droplet shape) ejected from the recording head 51 is drawn on the lower side of the recording head 51 in FIG. 4, but the ink actually ejected is the ink drawn in FIG. Much smaller than (water drop shape). The same applies to FIG. 5 used in a later description.

As shown in FIG. 4, the inkjet recording apparatus 1 includes a resist roller pair 45, a resist sensor 46, a first paper sensor 47, and a second paper sensor 48.

The resist roller pair 45 is arranged on the downstream side of the paper feeding unit 3 in the paper transport direction Dc. The recording unit 5 and the first belt transport unit 41 are arranged in the immediate vicinity of the resist roller pair 45 on the downstream side of the paper transport direction Dc. The paper S sent out from the paper supply unit 3 passes through the paper transport unit 4 and reaches the position of the resist roller pair 45. The control unit 7 corrects the diagonal feed of the paper S by the resist roller pair 45, measures the timing with the ink ejection operation of the recording unit 5, and feeds the paper S toward the first belt transport unit 41.

The resist sensor 46 is arranged in the immediate vicinity of the upstream side of the paper transport direction Dc of the resist roller pair 45. The resist sensor 46 detects the paper S that is sent out from the paper supply unit 3 and reaches the position of the resist roller pair 45. The control unit 7 controls the rotation of the resist roller pair 45 based on the detection signal of the paper S received from the resist sensor 46.

The first paper sensor 47 is arranged on the downstream side of the resist roller pair 45 in the paper transport direction Dc and on the upstream side of the first belt transport unit 41 in the paper transport direction Dc. The first paper sensor 47 is a line sensor that detects the position in the width direction of the paper S sent from the resist roller pair 45 to the first belt transport unit 41. Based on the detection signal of the paper S received from the first paper sensor 47, the control unit 7 ejects ink from the ink ejection nozzle 52 corresponding to the paper width among the plurality of ink ejection nozzles 52 of each of the recording heads 51 of each color. The operation can be controlled and the image can be recorded on the paper S.

The second paper sensor 48 is arranged on the downstream side of the paper transport direction Dc of the first paper sensor 47 and on the upstream side of the paper transport direction Dc of the recording unit 5 and above the first belt transport unit 41. The second paper sensor 48 is a sensor that detects the position of the paper S transported by the first belt transport unit 41 in the transport direction. Based on the detection signal of the paper S received from the second paper sensor 48, the control unit 7 receives the ink ejection nozzle 52 for the paper S that has reached the position facing each of the recording heads 51 of each color by the first belt transport unit 41. Controls the ink ejection operation from.

The first belt transport unit 41 is arranged below the recording unit 5. The first belt transport unit 41 attracts and holds the paper S on its upper surface, and transports the paper S along the paper transport direction Dc. The first belt transport unit 41 includes a first transport belt (conveyor belt) 8, a roller 412, a first belt sensor 413, and a second belt sensor 414.

The first transport belt 8 is an endless belt and is erected by four rollers 412 arranged inside. The roller 412 is arranged inside the first transport belt 8 and is rotatably supported around a rotation axis extending along the paper width direction Dw (see FIG. 2). One of the four rollers 412 is a drive roller, and the first transfer belt 8 is rotated by the drive roller so that the upper side moves in the paper transfer direction Dc. The first transport belt 8 has a plurality of holes 81 penetrating the front and back surfaces and a plurality of openings 82 (openings group 83) (see FIG. 6). The first transport belt 8 transports the paper S to a position facing the recording head 51.

The first belt sensor 413 is arranged on the downstream side of the paper transport direction Dc of the recording unit 5 and above the first belt transport unit 41. The second belt sensor 414 is inside the first conveyor belt 8 and is on the upstream side in the rotation direction of the first conveyor belt 8 of the roller 412 adjacent to the upstream end of the paper transport direction Dc on the upper side of the first conveyor belt 8. Placed in. The first belt sensor 413 and the second belt sensor 414 detect the position of the opening group 83 (see FIG. 6), which is a collection of a plurality of openings 82 provided in the first conveyor belt 8. The first belt sensor 413 has the same function as the second paper sensor 48.

The second belt transport unit 42 is arranged in the drying unit 6. The second belt transport unit 42 sucks and holds the paper S on its upper surface, and transports the paper S along the paper transport direction Dc. The second belt transport unit 42 includes a second transport belt 421 and a roller 422.

The second transport belt 421 is an endless belt and is erected by two rollers 422 arranged inside. The roller 422 is arranged inside the second transport belt 421 and is rotatably supported around a rotation axis extending along the paper width direction Dw (see FIG. 2). One of the two rollers 422 is a drive roller, and the second transfer belt 421 is rotated by the drive roller so that the upper side moves in the paper transfer direction Dc.

The drying unit 6 has a dryer 61. The paper S on which the image is recorded by the recording unit 5 is dried by the dryer 61 during transportation by the second belt transport unit 42 in the drying unit 6, and is transported to the downstream side of the paper transport direction Dc of the drying unit 6. To.

FIG. 5 is a front view of the periphery of the recording unit 5 and the first belt transport unit 41 of FIG. FIG. 6 is a plan view of the first conveyor belt 8 of the first belt conveyor 41 of FIG. As shown in FIG. 5, the inkjet recording device 1 includes a paper suction unit (recording medium suction unit) 9 and an ink receiving unit 10.

The paper suction unit 9 is the upper part inside the first transport belt 8 and faces one surface (upper inner surface, back surface) on the opposite side of the paper transport surface (upper outer surface, front surface) of the first transfer belt 8. Is placed. The paper suction unit 9 includes a housing 91 and an intake fan 92.

The housing 91 has a suction space 911 inside the housing 91, which is surrounded on all sides by the side wall 91a. In the suction space 911, the first transport belt 8 and the recording head 51 do not face each other on the upstream side and the downstream side of the paper transport direction Dc with respect to the facing section So where the first transport belt 8 and the recording head 51 face each other. It is located in the opposite section Sn. The suction spaces 911 provide the paper transport of the first transport belt 8 at five locations from the lower side of the black recording head 51B on the upstream side of the paper transport direction Dc to the lower side of the yellow recording head 51Y on the downstream side of the paper transport direction Dc. It faces one surface (upper inner surface, back surface) on the opposite side of the surface (upper outer surface, front surface).

The housing 91 has a plurality of intake holes 912 located on the upper surface thereof and above the suction space 911. The plurality of intake holes 912 penetrate the housing 91 in the vertical direction.

The intake fan 92 is located inside the housing 91 and below the suction space 911. As shown in FIG. 6, the first transport belt 8 has a plurality of holes 81 and a plurality of openings 82. The hole 81 and the opening 82 penetrate the front and back of the first transport belt 8. When the intake fan 92 is driven, the paper suction unit 9 sucks air through the intake holes 912, the holes 81, and the opening 82 to suck the paper S into the paper transport surface (upper outer surface, surface) of the first transport belt 8. ).

The plurality of holes 81 and the plurality of openings 82 attract the paper S to the upper outer surface (surface) which is the paper transport surface of the first transport belt 8 by sucking air by the paper suction section 9. The opening area of the opening 82 is larger than the opening area of the hole 81. Ink discharged from the recording head 51 passes through the opening 82 during flushing. The opening 82 constitutes the opening group 83 by gathering a plurality of (for example, 10) openings 82.

The ink receiving portion 10 is arranged below the recording head 51 across the first transport belt 8. That is, the ink receiving portion 10 is arranged below the facing section So where the first transport belt 8 and the recording head 51 face each other. A suction space 911 is adjacent to each of the upstream side and the downstream side of the paper transport direction Dc of the ink receiving portion 10. The ink receiving portion 10 receives the ink that has passed through the opening 82 of the first transport belt 8 at the time of flushing.

FIG. 7 is a plan view of the first belt transport unit 41 of FIG. 5 in a state where the first transport belt 8 is removed. FIG. 8 is an enlarged front view of the ink receiving portion 10 of the first belt transporting portion 41 of FIG. The ink receiving unit 10 includes a rotating body 101, a scraping unit 102, and a storage unit 103, and these three components are provided as one set. The ink receiving unit 10 includes one set of a rotating body 101, a scraping unit 102, and a storage unit 103 for each of the three recording heads 51 of each color. The set of the rotating body 101, the scraping unit 102, and the storage unit 103 faces the recording head 51 in the vertical direction.

The rotating body 101 is arranged immediately below the upper surface of the housing 91. The housing 91 has a plurality of window portions 913 arranged above the rotating body 101 on the upper surface thereof. The window portion 913 is provided with the same number as the set of the rotating body 101, the scraping portion 102, and the storage portion 103. The plurality of window portions 913 penetrate the housing 91 in the vertical direction. The rotating body 101 faces one surface (upper inner surface, back surface) on the opposite side of the paper transport surface of the first transport belt 8 through the window portion 913.

The rotating body 101 is rotatably supported around a rotation axis extending along the paper width direction Dw (see FIG. 7), similarly to the four rollers 412 arranged inside the first transport belt 8. The rotating body 101 rotates in the same direction as the first transport belt 8. More specifically, the rotating body 101 rotates so that the surface facing the first transport belt 8 moves relative to the recording head 51. In other words, the rotating body 101 rotates so that the surface facing the recording head 51 moves relative to the recording head 51 through the opening 82 of the first transport belt 8. The rotating body 101 has substantially the same length as the recording head 51 along the paper width direction Dw, and faces all of the plurality of ink ejection nozzles 52 of the recording head 51 in the vertical direction. Ink that has passed through the opening 82 of the first transport belt 8 adheres to the surface of the rotating body 101.

The scraping portion 102 is arranged below the rotating body 101 in close proximity to the surface of the rotating body 101 so as to come into contact with the ink adhering to the surface of the rotating body 101. The scraping portion 102 may be arranged so as to be in contact with the surface of the rotating body 101. The scraping portion 102 is supported by the support member 104. The scraping portion 102 may be pushed by the support member 104 and pressed against the surface of the rotating body 101 with a predetermined force. The scraping portion 102 extends along the paper width direction Dw and has substantially the same axial length as the rotating body 101. The scraping unit 102 scrapes the ink adhering to the surface of the rotating body 101. If the scraping portion 102 is in contact with the surface of the rotating body 101, it is possible to prevent the ink from remaining on the surface of the rotating body 101.

The storage unit 103 is arranged below the rotating body 101 and the scraping unit 102. The storage portion 103 extends along the paper width direction Dw and has substantially the same axial length as the rotating body 101 and the scraping portion 102. The storage unit 103 stores the ink scraped from the rotating body 101 by the scraping unit 102. The storage unit 103 can be attached to and detached from the device main body 2.

According to the above configuration, the ink ejected from the recording head 51 at the time of flushing can be carried to the storage unit 103 by using the rotating body 101 and the scraping unit 102 and can be recovered. That is, it is possible to efficiently recover the ink ejected during flushing.

The rotating body 101 is composed of, for example, an ink recovery belt. The ink recovery belt (rotating body 101) has an endless shape and is erected by two rollers 1011 arranged inside. The roller 1011 is arranged inside the rotating body 101 and is rotatably supported around a rotation axis extending along the paper width direction Dw (see FIG. 7). One of the two rollers 1011 is a drive roller, and the rotating body 101 is rotated by the drive roller so that the upper side moves in the paper transport direction Dc.

The ink ejected when the opening 82 reaches a position on the first transport belt 8 where the ink ejected during flushing can pass passes through the opening 82 and adheres to the surface of the rotating body 101. do. Then, as the rotating body 101 rotates, the surface facing the first transport belt 8 moves relative to the recording head 51. That is, the ink that has passed through the opening 82 next adheres to another position on the surface of the rotating body 101.

The rotation direction of the rotating body 101 may be the same as the rotation direction of the first transport belt 8. Specifically, the surface of the rotating body 101 facing each other at the position where the flushing is received and the first transport belt 8 may move in the same direction. According to this configuration, even if the ink adhering to the rotating body 101 adheres to the first conveyor belt 8, the ink adhesion range of the first conveyor belt 8 can be reduced. Further, even if the rotating body 101 and the first transport belt 8 come into contact with each other, the impact can be reduced.

The ink recovery belt (rotary body 101) has substantially the same length as the recording head 51 along the paper transport direction Dc and the paper width direction Dw, and is vertically and vertically aligned with all of the plurality of ink ejection nozzles 52 possessed by the recording head 51. Oppose in the direction. Further, the ink recovery belt (rotating body 101) faces one surface (upper inner surface, back surface) on the opposite side of the paper transport surface of the first transport belt 8 at a predetermined interval.

According to the above configuration, the entire ink ejection surface at the bottom of the recording head 51 can be made to face the rotating body 101 with a simple configuration. This makes it possible to easily attach the ink ejected by all the ink ejection nozzles 52 of the recording head 51 to the rotating body 101.

The storage unit 103 has a liquid retention member 1031 and a holder 1032. Both the liquid-retaining member 1031 and the holder 1032 are formed in a substantially plate shape extending in the paper transport direction Dc and the paper width direction Dw. The liquid retaining member 1031 is arranged immediately below the scraping portion 102. The liquid-retaining member 1031 is made of, for example, felt, sponge, non-woven fabric, or the like, and absorbs and holds the ink scraped from the surface of the rotating body 101 by the scraping portion 102. The holder 1032 holds the liquid-retaining member 1031 on its upper surface. According to this configuration, the ink ejected from the recording head 51 during flushing can be easily recovered by removing the liquid retaining member 1031 from the apparatus main body 2 together with the holder 1032.

FIG. 9 is an enlarged front view of the ink receiving portion 10 of the first belt transporting portion 41 of the modified example. In the modified example, the storage unit 103 has a tank 1033. The tank 1033 extends in the paper width direction Dw. The tank 1033 has an inflow port 1033a provided just below the scraping portion 102. The inflow port 1033a is located at the top of the tank 1033 and opens upward. The ink scraped from the surface of the rotating body 101 by the scraping portion 102 flows into the tank 1033 from the inflow port 1033a. Tank 1033 stores ink. According to this configuration, the ink ejected from the recording head 51 during flushing can be easily recovered by removing the tank 1033 from the apparatus main body 2.

The rotating body 101 starts and stops rotating at the same timing as the first transport belt 8. The rotating body 101 starts rotating at the same time as the rotation of the first transport belt 8 starts, for example, at the start of a print job. Further, the rotating body 101 stops rotating at the same time as the rotation of the first transport belt 8 is stopped, for example, at the end of the print job. According to this configuration, it is possible to efficiently collect the ink ejected at the time of flushing without requiring complicated control.

Further, the rotating body 101 may be rotated only at the time of flushing. For example, when flushing between papers, the rotating body 101 rotates only between the papers to be flushed. That is, the rotating body 101 does not rotate, for example, at the ink ejection timing (during recording) with respect to the paper S. According to this configuration, the period in which the rotating body 101 rotates can be shortened, and the wear of the rotating body 101 and the scraping portion 102 can be suppressed. Therefore, the life of the rotating body 101 and the scraping portion 102 can be extended.

Further, the rotation speed of the rotating body 101 is slower than the rotation speed of the first transport belt 8. According to this configuration, the frictional force generated between the rotating body 101 and the scraping portion 102 can be reduced, and the wear of the rotating body 101 and the scraping portion 102 can be suppressed. Therefore, the life of the rotating body 101 and the scraping portion 102 can be extended.

Further, by reducing the rotation speed of the rotating body 101 as much as possible, it is possible to suppress the scattering of the ink adhering to the surface of the rotating body 101 due to the rotation of the rotating body 101. Further, by slowing the rotation speed of the rotating body 101 as much as possible, it is possible to suppress the generation of an air flow in the vicinity of the rotating body 101, and it is possible to prevent the ink in the middle of falling from adhering to an unintended place. Is.

Although the embodiments of the present invention have been described above, the scope of the present invention is not limited to this, and various modifications can be made without departing from the gist of the invention.

For example, the rotating body 101 may be a roller-shaped member. In this case, a roller whose rotation axis extends along the paper width direction Dw may be arranged for one recording head 51. In that case, a plurality of rollers whose diameter is smaller than the size of the paper transport direction Dc of the window portion 913 may be juxtaposed along the paper transport direction Dc.

The present invention can be used in an inkjet recording device.

1 Inkjet recording device 2 Device body 5 Recording unit 8 First transport belt (conveyor belt)
9 Paper suction unit (recording medium suction unit)
10 Ink receiving part 51 Recording head 52 Ink ejection nozzle 81 Hole part 82 Opening part 101 Rotating body 102 Scraping part 103 Storage part 104 Support member 1011 Roller 1031 Liquid retention member 1032 Holder 1033 Tank 1033a Inlet Dc Paper transport direction Dw Paper width Direction S paper (recording medium)

Claims (8)

A recording head with multiple nozzles that eject ink,
An endless transport belt having a plurality of openings through which the ink discharged from the recording head passes and transporting the recording medium to a position facing the recording head.
The ink that is arranged below the recording head across the transport belt and has passed through the opening at the time of flushing to eject the ink to the recording head at a timing different from the timing of ejecting the ink to the recording medium. Ink receiving part to receive and
Equipped with
The ink receiving portion is
A rotating body in which the surface facing the transport belt rotates so as to move relative to the recording head, and the ink that has passed through the opening adheres to the surface.
A scraping portion that scrapes off the ink adhering to the surface of the rotating body, and
An inkjet recording device characterized by being equipped with. The inkjet recording apparatus according to claim 1, wherein the rotation direction of the rotating body is the same as the rotation direction of the conveyor belt. The inkjet recording apparatus according to claim 1 or 2, wherein the rotating body is composed of an endless ink recovery belt. The inkjet recording apparatus according to any one of claims 1 to 3, wherein the rotation speed of the rotating body is slower than the rotation speed of the conveyor belt. Further provided with a storage unit for storing the ink scraped from the rotating body,
The inkjet recording apparatus according to any one of claims 1 to 4, wherein the storage unit has a liquid-retaining member that absorbs and holds the ink. Further provided with a storage unit for storing the ink scraped from the rotating body,
The inkjet recording apparatus according to any one of claims 1 to 5, wherein the storage unit has a tank for storing the ink. The inkjet recording apparatus according to any one of claims 1 to 6, wherein the rotating body starts and stops rotation at the same timing as the conveyor belt. The inkjet recording apparatus according to any one of claims 1 to 6, wherein the rotating body rotates only at the time of flushing.

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