CN211808440U - Liquid ejecting apparatus - Google Patents

Abstract

The present application relates to a liquid ejecting apparatus that suppresses deposition of an attached matter on a removing portion that removes the attached matter from a medium, and reduces an effect of removing the attached matter. A liquid discharge device (1) is provided with: an ejection unit (8) that ejects a liquid onto a medium (M); a conveying unit (18) that has a conveyor belt (5) that supports the liquid-ejected medium (M), and that conveys the medium (M) in a conveying direction (A) by rotating the conveyor belt (5); a removing unit (29) that is provided upstream of the ejecting unit (8) in the conveying direction (A) and removes the adhering matter from the medium (M) by causing the adhering matter adhering to the medium (M) to adhere to itself; and a first cleaning part which cleans the removing part (29) by removing the attached matter attached to the removing part (29).

Description

Liquid ejecting apparatus

Technical Field

The utility model relates to a liquid ejecting device.

Background

Various liquid ejecting apparatuses capable of ejecting liquid to a medium to be conveyed have been disclosed. Among them are liquid ejecting apparatuses provided with a removing section for removing adhering substances from a medium. For example, patent document 1 discloses an ink jet printer including a removing unit that removes an adhering substance adhering to a printing surface of a printing medium by contacting the printing surface.

Patent document 1: japanese patent laid-open No. 2015-89636

For example, when a fabric is used as the medium, there are many cases where an attached matter such as nap is attached to the medium. If the adhering matter adheres to the medium, the discharged liquid may land on the adhering matter to degrade the quality of an image formed on the medium, or the adhering matter may contact the discharge portion to cause a discharge failure. Such deposits can be removed by using a liquid ejecting apparatus provided with a removing unit like the ink jet printer of patent document 1. However, if the deposit accumulates on the removing portion, the effect of removing the deposit is reduced, and the deposit may not be sufficiently removed.

SUMMERY OF THE UTILITY MODEL

The liquid ejecting apparatus according to the present invention is a liquid ejecting apparatus including: an ejection section that ejects liquid onto a medium; a conveying unit that has a conveyor belt that supports the medium from which the liquid is ejected, and that conveys the medium in a conveying direction by rotating the conveyor belt; a removing section provided upstream of the ejecting section in the conveying direction, the removing section removing the attached matter from the medium by attaching the attached matter to the medium to the removing section; and a first cleaning section for cleaning the removing section by removing the attached matter attached to the removing section.

Preferably, the liquid ejecting apparatus further includes a second cleaning unit that cleans the conveyor belt, the first cleaning unit includes a first brush that contacts the removing unit, and the second cleaning unit includes a second brush that contacts the conveyor belt.

Preferably, the liquid ejecting apparatus further includes a common cleaning tank that stores a cleaning liquid, and the first brush and the second brush are immersed in the cleaning liquid together.

Preferably, the liquid ejecting apparatus further includes a common blowing unit that blows air to both a region of the removing unit that has been in contact with the first brush and a region of the conveyor belt that has been in contact with the second brush.

Preferably, the liquid discharge apparatus further includes: a first cleaning tank for storing the cleaning liquid for soaking the first brush; and a second cleaning tank for storing the cleaning liquid for soaking the second brush.

Preferably, the liquid discharge apparatus further includes: a first blowing section that blows air to a region of the removing section after contact with the first brush; and a second air blowing section that blows air to a region of the conveyor belt after contact with the second brush.

Preferably, the liquid ejecting apparatus further includes a mounting portion to which the medium is mounted as a rolled medium, the mounting portion feeds the medium to the conveying portion, and the removing portion is provided at a position in contact with a rolled portion of the rolled medium mounted to the mounting portion.

Preferably, the removing unit is configured such that an annular member having an adhesive force rotates with rotation of the rolled medium, and a rotation direction of the conveyor belt is opposite to a rotation direction of the annular member.

Preferably, the mounting portion is configured to be movable in a direction approaching the removing portion provided at a lower portion of the rolled medium by the weight of the rolled medium and the mounting portion.

Drawings

Fig. 1 is a schematic side view of a liquid ejecting apparatus according to an embodiment of the present invention.

Fig. 2 is a block diagram of a liquid ejecting apparatus according to an embodiment of the present invention.

Fig. 3 is a schematic side view of a liquid ejecting apparatus according to a second embodiment of the present invention.

Description of the reference numerals

1 liquid ejecting apparatus, 2 mounting unit, 3 driven roller, 4 driving roller, 5 conveying belt, 6 medium attaching unit, 7 carriage, 8 head (ejecting unit), 9 cleaning unit (second cleaning unit), 10 cleaning brush (second brush), 11 wiper, 12 second cleaning tank, 13 second blowing unit, 14 rotating shaft, 15 arm unit, 16 cleaning tank (common cleaning tank), 17 blowing unit (common blowing unit), 18 conveying unit, 19 pressing unit, 20 removing mechanism, 21 driven roller, 22 driven roller, 23 endless belt (endless member), 24 cleaning unit (first cleaning unit), 25 cleaning brush (first brush), 26 first cleaning tank, 27 wiper, 28 first blowing unit, 29 removing unit, 30 control unit, 31 CPU, 32 system bus, 33 ROM, 34 storage unit, A 35 … head drive section, a 36 … motor drive section, a 37 … carriage motor, a 38 … feed motor, a 39 … feed motor, a 40 … brush motor, a 41 … blower drive section, a 42 … input/output section, 43 … PC, M … media, R … roll media, R1 … roll.

Detailed Description

First, the present invention will be briefly described.

In order to solve the above problem, the liquid ejecting apparatus according to the first aspect of the present invention includes: an ejection section that ejects liquid onto a medium; a conveying unit that has a conveyor belt that supports the medium from which the liquid is ejected, and that conveys the medium in a conveying direction by rotating the conveyor belt; a removing section provided upstream of the ejecting section in the conveying direction, the removing section removing the attached matter from the medium by attaching the attached matter to the medium to the removing section; and a first cleaning section for cleaning the removing section by removing the attached matter attached to the removing section.

According to this aspect, since the first cleaning portion is provided for cleaning the removing portion by removing the attached matter attached to the removing portion, the attached matter can be prevented from being deposited on the removing portion, and the effect of the removing portion in removing the attached matter can be prevented from being reduced.

A second aspect of the present invention is the liquid ejecting apparatus according to the first aspect, wherein a second cleaning portion that cleans the conveyor belt is provided, the first cleaning portion has a first brush that contacts the removing portion, and the second cleaning portion has a second brush that contacts the conveyor belt.

According to the present aspect, the removal portion can be appropriately cleaned by the first brush, and the conveyor belt can be appropriately cleaned by the second brush.

The liquid ejecting apparatus according to a third aspect of the present invention is the liquid ejecting apparatus according to the second aspect, wherein a common cleaning tank for storing a cleaning liquid is provided, and the first brush and the second brush are soaked together in the cleaning liquid.

According to this aspect, since the first brush and the second brush soaked with the cleaning liquid can be used, the cleaning effect can be improved. In addition, the first brush and the second brush can be immersed in the cleaning solution by a single common cleaning tank, so that the device structure can be simplified.

A liquid ejecting apparatus according to a fourth aspect of the present invention is the liquid ejecting apparatus according to the second or third aspect, wherein a common blowing portion is provided to blow both the area of the removing portion after contact with the first brush and the area of the conveyor belt after contact with the second brush.

According to this aspect, since the air is blown to both the area of the removing section after contacting the first brush and the area of the conveyor belt after contacting the second brush, it is possible to suppress the cleaning liquid from remaining on the removing section and the conveyor belt and wetting the medium with the cleaning liquid. Further, the area of the removing section that has contacted the first brush and the area of the conveyor belt that has contacted the second brush can be blown by a single common blowing section, and the apparatus configuration can be simplified.

The liquid ejecting apparatus according to a fifth aspect of the present invention is the liquid ejecting apparatus according to the second aspect, further comprising: a first cleaning tank for storing the cleaning liquid for soaking the first brush; and a second cleaning tank for storing the cleaning liquid for soaking the second brush.

According to this aspect, since the first brush and the second brush soaked with the cleaning liquid can be used, the cleaning effect can be improved. In addition, since the first brush can be immersed in the cleaning liquid in the first cleaning tank and the second brush can be immersed in the cleaning liquid in the second cleaning tank, the size and arrangement of the first cleaning tank and the second cleaning tank can be individually optimized.

The liquid ejecting apparatus according to a sixth aspect of the present invention is the liquid ejecting apparatus according to the second or fifth aspect, further comprising: a first blowing section that blows air to a region of the removing section after contact with the first brush; and a second air blowing section that blows air to a region of the conveyor belt after contact with the second brush.

According to this aspect, since the air is blown to both the area of the removing section after contacting the first brush and the area of the conveyor belt after contacting the second brush, it is possible to suppress the cleaning liquid from remaining on the removing section and the conveyor belt and wetting the medium with the cleaning liquid. Further, since the area of the removal portion after contact with the first brush can be blown by the first blowing portion and the area of the conveyor belt after contact with the second brush can be blown by the second blowing portion, the degree and arrangement of blowing of the first blowing portion and the second blowing portion can be optimized individually.

A seventh aspect of the present invention is the liquid ejecting apparatus according to any one of the first to sixth aspects, wherein an installation portion is provided, the roll medium as the medium is installed in the installation portion, the installation portion feeds the medium to the transport portion, and the removal portion is provided at a position in contact with a rolled portion of the roll medium installed in the installation portion.

According to this aspect, the adhering substances can be removed from the medium before the medium is sent out to the transport unit, that is, at an early stage, and the adverse effect of the adhering substances on the liquid discharge apparatus can be effectively suppressed.

In the liquid ejecting apparatus according to an eighth aspect of the present invention, in the seventh aspect, the removing unit is configured such that an annular member having an adhesive force rotates with rotation of the rolled medium, and a rotation direction of the conveyor belt is opposite to a rotation direction of the annular member.

For example, although a medium wound in a roll with the liquid landing surface as the image printing surface on the outer side is often used, according to the present invention, in the case of using such a medium wound with the liquid landing surface on the outer side, a configuration can be easily formed in which the medium is conveyed by the conveyor belt after the removal portion is brought into contact with the roll.

A liquid ejecting apparatus according to a ninth aspect of the present invention is the liquid ejecting apparatus according to the seventh or eighth aspect, wherein the mounting portion is configured to be movable in a direction approaching the removing portion provided in a lower portion of the rolled medium by a weight of the rolled medium and the mounting portion.

According to the present invention, the removing unit provided in the lower portion of the rolled medium is configured to be in contact with the rolled medium by the weight of the rolled medium and the mounting unit, and thus the rolled medium can be easily brought into contact with the removing unit.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings.

Example one (FIGS. 1 and 2)

Integral structure

First, an outline of the liquid ejecting apparatus 1 according to the first embodiment of the present invention will be described. The liquid ejecting apparatus 1 of the present embodiment is an ink jet printer capable of ejecting ink as a liquid from the head 8 to form an image on a medium M.

Fig. 1 is a schematic side view of a liquid ejecting apparatus 1 according to the present embodiment.

As shown in fig. 1, the liquid ejecting apparatus 1 of the present embodiment includes a mounting portion 2 to which a roll medium R wound from a medium M is mounted. Further, a removing mechanism 20 for removing attached matter such as lint attached to the medium M is provided at a lower portion of the mounting portion 2. The detailed structure of the removing mechanism 20 will be described later.

The liquid discharge apparatus 1 further includes a transport unit 18 capable of transporting the medium M fed from the mounting unit 2 in the transport direction a. The conveying unit 18 includes a driven roller 3 located on an upstream side in the conveying direction a, a drive roller 4 located on a downstream side in the conveying direction a, and a conveying belt 5 as an endless belt stretched over the driven roller 3 and the drive roller 4.

Here, the conveyor belt 5 is an adhesive belt coated with an adhesive on the outer surface. As shown in fig. 1, the medium M is supported and conveyed by the conveyor belt 5 in a state where the medium M is attached to the outer surface of the adhesive tape to which the adhesive is applied. The support area of the medium M on the transport belt 5 is an upper area that spans the driven roller 3 and the drive roller 4. The driving roller 4 is a roller that is rotated by the driving force of the conveyance motor 38 (see fig. 2), and the driven roller 3 is a roller that is rotated following the rotation of the conveyance belt 5 caused by the rotation of the driving roller 4. Although the conveyor belt 5 of the present embodiment is an adhesive belt, an electrostatic adsorption belt using the electrostatic support medium M or the like may be used as the conveyor belt 5 instead of the adhesive belt.

The liquid discharge apparatus 1 includes a carriage 7 and a head 8 attached to the carriage 7. The head 8 functions as an ejection unit that can eject ink onto the medium M conveyed in the conveyance direction a to print an image. The head 8 is provided at a position facing a support area of the medium M on the conveyor belt 5, and is capable of ejecting ink to the support area. At this time, the support area of the medium M on the conveyor belt 5 can be said to be an opposing area opposing the head 8. The liquid ejection device 1 of the present embodiment can print an image by ejecting ink from the head 8 onto the medium M being conveyed while reciprocating the carriage 7 in the scanning direction B intersecting the conveying direction a. With the carriage 7 having such a configuration, the liquid ejecting apparatus 1 according to the present embodiment can form a desired image on the medium M by repeatedly conveying the medium M in the conveying direction a by a predetermined conveying amount and ejecting ink while moving the carriage 7 in the scanning direction B while the medium M is stopped.

Note that the liquid ejecting apparatus 1 of the present embodiment is a so-called serial printer that alternately repeats conveyance of a predetermined amount of the medium M and scanning (reciprocating movement) of the carriage 7 to perform printing. However, a so-called line printer may be used in which printing is continuously performed while continuously conveying the medium M using a line head having nozzles formed in a line shape in the width direction of the medium M.

Further, a medium sticking portion 6 is formed at a position facing the conveyor belt 5 on the upstream side in the conveying direction a from the carriage 7. The medium M is pressed against the conveying belt 5 by the medium attaching portion 6 in the entire direction along the width direction of the medium M, that is, the scanning direction B, and thereby the medium M is attached to the conveying belt 5 in a state in which generation of wrinkles and the like is suppressed.

When discharged from the liquid discharge apparatus 1 of the present embodiment, the medium M on which an image is formed is sent to a drying device provided at a later stage than the liquid discharge apparatus 1 of the present embodiment, that is, a device for volatilizing components of ink discharged to the medium M, a winding device, that is, a device for winding the medium M on which an image is formed, and the like.

Here, as the medium M, a material to be subjected to printing can be preferably used. The material to be printed is a fabric, clothing, other clothing product, or the like to be printed. The fabric includes natural fibers such as cotton, silk, and wool, chemical fibers such as nylon, or textile, knit, nonwoven fabric, or the like in which composite fibers of these fibers are mixed. Further, the clothing and other clothing products include household goods such as T-shirts, handkerchiefs, scarves, towels, carrier bags, curtains, sheets, bedspreads after sewing, and cloth before and after cutting which is a part existing before sewing.

Further, as the medium M, in addition to the above-mentioned material to be subjected to printing, special paper for ink jet recording such as plain paper, fine paper, and glossy paper can be used. As the medium M, for example, a plastic film on which no surface treatment for inkjet printing is performed, that is, no ink absorbing layer is formed, a medium in which a plastic is coated on a substrate such as paper, or a medium in which a plastic film is adhered can be used. The plastic is not particularly limited, and examples thereof include polyvinyl chloride, polyethylene terephthalate, polycarbonate, polystyrene, polyurethane, polyethylene, polypropylene, and the like.

When the material to be subjected to printing is used as the medium M, ink penetration of the ink, that is, a phenomenon in which the ink ejected onto the medium M penetrates the back surface of the material to be subjected to printing easily occurs in the material to be subjected to printing, and therefore the conveyor belt 5 may be stained with the ink due to the ink penetration. Therefore, the liquid ejecting apparatus 1 of the present embodiment includes the cleaning portion 9 for cleaning the ink remaining on the conveying belt 5 due to the ink strike-through. The cleaning unit 9 of the present embodiment includes: three brushes 10 soaked with the cleaning liquid and brought into contact with the conveyor belt 5, three wipers 11 which wipe off the cleaning liquid adhering to the conveyor belt 5 by bringing the brushes 10 into contact with the conveyor belt 5, and a cleaning tank 16 which stores the cleaning liquid. The cleaning liquid is not particularly limited, and water or the like can be used, for example.

Further, the liquid discharge apparatus 1 of the present embodiment includes the air blowing portion 17 capable of drying the cleaning liquid that is not wiped clean by the wiper 11. The air blowing unit 17 is configured to blow air to an area of the conveyor belt 5 after contacting the brush 10 and the wiper 11.

The liquid ejecting apparatus 1 according to the present embodiment can transport the medium M in the transport direction a by rotating the drive roller 4 in the first rotation direction C1. The liquid ejecting apparatus 1 may convey the medium M in the reverse direction of the conveying direction a by rotating the drive roller 4 in the second rotating direction C2, which is the reverse direction of the first rotating direction C1. Note that the liquid ejecting apparatus 1 of the present embodiment is capable of rotating the drive roller 4 not only in the first rotation direction C1 and the second rotation direction C2 in a state where the medium M is supported by the transport belt 5, but also in the first rotation direction C1 and the second rotation direction C2 in a state where the medium M is not supported by the transport belt 5.

Electrical structure

Next, an electrical structure of the liquid ejecting apparatus 1 of the present embodiment will be described.

Fig. 2 is a block diagram of the liquid ejection device 1 of the present embodiment.

The control unit 30 is provided with a CPU31 that controls the entire liquid ejection apparatus 1. The CPU31 is connected via the system bus 32 to a ROM33 in which various control programs executed by the CPU31 are stored, and a storage unit 34 having a memory such as a RAM or an EEPROM capable of temporarily storing data.

The CPU31 is connected to a head driving unit 35 via the system bus 32, and the head driving unit 35 drives the head 8 to discharge ink.

The CPU31 is connected to the motor drive unit 36 via the system bus 32, and the motor drive unit 36 is connected to the carriage motor 37, the conveyance motor 38, the feed motor 39, and the brush motor 40.

Here, the carriage motor 37 is a motor for moving the carriage 7 on which the head 8 is mounted in the scanning direction B. The conveyance motor 38 is a motor for driving the drive roller 4. The feeding motor 39 is a rotation mechanism of the mounting unit 2, and drives the mounting unit 2 to feed the medium M to the conveyor 5. The brush motor 40 is a drive motor for rotating the brush 10 and a brush 25 (see fig. 1) described later.

Further, the CPU31 is connected to the blower unit driving unit 41 connected to the blower unit 17 via the system bus 32.

Further, the CPU31 is connected to an input/output unit 42 via the system bus 32, and the input/output unit 42 is connected to a PC43 for transmitting and receiving data such as image data and signals.

Removing mechanism

Next, the detailed structure of the removal mechanism 20 will be described with reference to fig. 1.

The removing mechanism 20 in the liquid ejecting apparatus 1 of the present embodiment includes: the sheet-like medium R is wound around the medium M, and includes a removing section 29, a pressing section 19 for pressing the rolled medium R wound around the medium M against the removing section 29, and a cleaning section 24 for cleaning the removing section 29.

The removing unit 29 includes: a driven roller 21 located on the side opposite to the conveying section 18 side, a driven roller 22 located on the conveying section 18 side, and an endless belt 23 stretched over the driven roller 21 and the driven roller 22. The endless belt 23 is configured to be capable of removing an attached matter attached to the roll medium R by being in contact with the roll medium R with an adhesive applied to a surface thereof.

Here, the driven roller 21 and the driven roller 22 are driven rollers. Thereby, the driven roller 21 and the driven roller 22 rotate together with the endless belt 23 as the roll medium R rotates. For example, as shown in fig. 1, when the roll-shaped medium R rolled with the surface on which an image is formed as the outer side is used, the roll-shaped medium R rotates in the first rotational direction C1, but the endless belt 23, the driven roller 21, and the driven roller 22 rotate in the second rotational direction C2 as the roll-shaped medium R rotates in the first rotational direction C1. Note that, in order to assist the rotation of the mounting portion 2, at least one of the driven roller 21 and the driven roller 22 may be a driving roller that rotates by the driving force of a motor or the like.

The pressing portion 19 includes a rotating shaft 14 and an arm portion 15 that couples the mounting portion 2 and the rotating shaft 14. The roll medium R attached to the mounting portion 2 rotates about the rotary shaft 14 due to the weight of the mounting portion 2 and the roll medium R, and the mounting portion 2 moves downward toward the side D. Accordingly, the rolled portion R1 of the rolled medium R is pressed against the endless belt 23. The rolled portion R1 of the rolled medium R becomes smaller in diameter as the medium M is fed out. However, with such a configuration, the mounting portion 2 moves downward D by the amount corresponding to the reduction in the diameter of the rolled portion R1, and the rolled portion R1 can be appropriately pressed against the endless belt 23.

Note that, in the present embodiment, the roll medium R is configured to move downward toward the side D by the weight of the mounting portion 2 and the roll medium R, and the roll medium R is pressed against the endless belt 23, but it may be configured to press the roll medium R against the endless belt 23 using a spring or the like as a pressing member.

The cleaning unit 24 includes a brush 25 and a wiper 27. Cleaning tank 16 and blowing unit 17 described above also constitute cleaning unit 24. In other words, the cleaning unit 24 of the present embodiment includes: a brush 25 soaked with the cleaning liquid and brought into contact with the endless belt 23, a wiper 27 for wiping off the cleaning liquid adhering to the endless belt 23 by bringing the brush 25 into contact with the endless belt 23, the cleaning bath 16 for storing the cleaning liquid, and the air blowing unit 17 for drying the cleaning liquid which is not wiped clean by the wiper 27. That is, the cleaning tank 16 also serves as a cleaning tank for the cleaning unit 9 and a cleaning tank for the cleaning unit 24, and the air blowing unit 17 also serves as an air blowing unit for the conveyor 5 and an air blowing unit for the endless belt 23 by blowing air not only to the conveyor 5 but also to the endless belt 23. Note that the air blowing unit 17 is configured to be capable of blowing air to the area of the removing unit 29 after contact with the brush 25.

To summarize this, as described above, the liquid ejection device 1 of the present embodiment includes: the ink jet head 8 that ejects ink onto the medium M and the transport unit 18 that has the transport belt 5 that supports the medium M from which ink is ejected are provided, and the transport unit 18 transports the medium M in the transport direction a by rotating the transport belt 5. Further, the cleaning unit 24 is provided with a removing unit 29 and a cleaning unit 24 as a first cleaning unit, the removing unit 29 is provided at a position upstream of the head 8 in the transport direction a, and the removing unit 29 removes the adhering matter from the medium M by adhering the adhering matter to the medium M to itself, and the cleaning unit 24 cleans the removing unit 29 by removing the adhering matter adhered to the removing unit 29.

As described above, the liquid ejecting apparatus 1 of the present embodiment is configured to include the cleaning section 24 for cleaning the removing section 29 by removing the attached matter attached to the removing section 29, so that the attached matter can be prevented from being accumulated in the removing section 29, and the effect of removing the attached matter by the removing section 29 can be prevented from being reduced. Although the liquid ejecting apparatus 1 of the present embodiment is configured to remove the attached matter on the medium M by bringing the endless belt 23 of the removing unit 29 into direct contact with the medium M, the liquid ejecting apparatus may be configured to include a removing unit that removes the attached matter without coming into direct contact with the medium M by static electricity or the like.

As described above, the liquid ejecting apparatus 1 according to the present embodiment includes the cleaning unit 9 as the second cleaning unit that cleans the conveyor belt 5, the cleaning unit 24 includes the brush 25 as the first brush that contacts the removing unit 29, and the cleaning unit 9 includes the brush 10 as the second brush that contacts the conveyor belt 5. With the liquid ejecting apparatus 1 of the present embodiment configured as described above, the removing unit 29 can be appropriately cleaned with the brush 25, and the transport belt 5 can be appropriately cleaned with the brush 10. However, the configuration of the first cleaning unit of the cleaning removal unit 29 is not limited to the configuration having the brush.

The liquid discharge apparatus 1 of the present embodiment includes the cleaning tank 16 as a common cleaning tank for storing the cleaning liquid, and the brush 25 is immersed in the cleaning liquid together with the brush 10. As described above, in the liquid discharge apparatus 1 of the present embodiment, the brush 25 and the brush 10 soaked with the cleaning liquid can be used, and thus the cleaning effect can be improved. In addition, in the liquid ejecting apparatus 1 according to the present embodiment, the brush 25 and the brush 10 can be immersed in the cleaning solution in the single cleaning tank 16, and thus the apparatus configuration can be simplified.

As described above, the liquid ejecting apparatus 1 according to the present embodiment includes the air blowing unit 17 as the common air blowing unit that blows air to both the area of the removing unit 29 that has contacted the brush 25 and the area of the conveyor belt 5 that has contacted the brush 10. In this way, in the liquid ejecting apparatus 1 according to the present embodiment, air is blown to both the area of the removing unit 29 that has contacted the brush 25 and the area of the conveyer belt 5 that has contacted the brush 10, and thus it is possible to suppress the cleaning liquid from remaining on the removing unit 29 and the conveyer belt 5 and wetting the medium M with the cleaning liquid. In addition, in the liquid ejecting apparatus 1 according to the present embodiment, the single air blowing unit 17 can blow air to the area of the removing unit 29 that has contacted the brush 25 and the area of the conveyor belt 5 that has contacted the brush 10, and thus the apparatus configuration can be simplified.

As described above, the liquid ejecting apparatus 1 according to the present embodiment includes the mounting unit 2 that mounts the roll medium R as the medium M and feeds the medium M to the conveying unit 18, and the removing unit 29 is provided at a position in contact with the rolled portion R1 of the roll medium R mounted on the mounting unit 2. With the liquid ejecting apparatus 1 according to the present embodiment, the adhering substances can be removed from the medium M before the medium M is sent to the conveying unit 18, that is, at an early stage, and the adverse effect of the adhering substances on the liquid ejecting apparatus 1 can be effectively suppressed. However, the present invention is not limited to this configuration, and the removed portion 29 may be in contact with a portion other than the rolled portion R1.

The removing unit 29 in the liquid ejecting apparatus 1 according to the present embodiment is configured such that the endless belt 23 as an endless member having an adhesive force rotates with the rotation of the roll medium R, and the rotation direction of the transport belt 5 and the rotation direction of the endless belt 23 can be set to be opposite directions. Specifically, the rotation direction of the conveyor belt 5 can be set to the first rotation direction C1, and the rotation direction of the endless belt 23 can be set to the second rotation direction C2. As shown in fig. 1, a medium M wound around the ink landing surface serving as the image printing surface is often used, but such a configuration enables a simple configuration in which the medium M is conveyed by the conveyor 5 after the removing unit 29 is brought into contact with the rolled medium R, for example, when the medium M wound around the ink landing surface is used. For example, the image forming apparatus of the present embodiment can be easily configured to include a common air blowing unit that blows air to both the area of the removing unit 29 that has contacted the brush 25 and the area of the transport belt 5 that has contacted the brush 10.

As described above, in the liquid ejecting apparatus 1 according to the present embodiment, the removing unit 29 provided below the rolled medium R is configured to be in contact with the rolled medium R due to the weight of the rolled medium R and the mounting unit 2. Specifically, the arm portion 15 rotates about the rotation shaft 14, and the mounting portion 2 moves toward the removing portion 29, i.e., toward the lower side D due to the roll medium R mounted on the mounting portion 2 and the weight of the mounting portion 2. Accordingly, the rolled portion R1 of the rolled medium R can be brought into contact with the endless belt 23. Therefore, the liquid ejecting apparatus 1 according to the present embodiment can be configured to simply bring the rolled medium R into contact with the removing section 29.

EXAMPLE two (FIG. 3)

Next, the liquid discharge apparatus 1 according to embodiment 2 will be described with reference to fig. 3.

Fig. 3 is a schematic side view of the liquid ejecting apparatus 1 according to the second embodiment, and is a view corresponding to fig. 1 of the liquid ejecting apparatus 1 according to the first embodiment. Note that the same constituent elements as those of the above-described embodiment are denoted by the same reference numerals, and detailed description is omitted.

The liquid discharge apparatus 1 of the present embodiment has the same configuration as the liquid discharge apparatus 1 of the first embodiment except for the configurations of the cleaning unit 9 and the cleaning unit 24.

As shown in fig. 3, the liquid ejecting apparatus 1 of the present embodiment includes, instead of the common cleaning tank, a first cleaning tank 26 that stores the cleaning liquid for the soaking brush 25 and a second cleaning tank 12 that stores the cleaning liquid for the soaking brush 10. As described above, in the liquid discharge apparatus 1 of the present embodiment, the brush 25 and the brush 10 soaked with the cleaning liquid can be used, and the cleaning effect can be improved, as in the liquid discharge apparatus 1 of the embodiment 1. In the liquid ejection device 1 of the present embodiment, unlike the liquid ejection device 1 of the first embodiment, the first cleaning tank 26 can be used to immerse the brush 25 in the cleaning liquid, and the second cleaning tank 12 can be used to immerse the brush 10 in the cleaning liquid, whereby the size and arrangement of the first cleaning tank 26 and the second cleaning tank 12 can be individually optimized. In addition, the cleaning liquid in first cleaning tank 26 can be different from the cleaning liquid in second cleaning tank 12.

As shown in fig. 3, the liquid ejecting apparatus 1 according to the present embodiment includes, instead of the common air blowing unit, a first air blowing unit 28 that blows air to the area of the removing unit 29 that has contacted the brush 25 and a second air blowing unit 13 that blows air to the area of the transport belt 5 that has contacted the brush 10. As described above, in the liquid ejecting apparatus 1 according to the present embodiment, similarly to the liquid ejecting apparatus 1 according to the first embodiment, the air is blown to both the area of the removing unit 29 that has contacted the brush 25 and the area of the conveyor belt 5 that has contacted the brush 10, and thus the cleaning liquid can be prevented from remaining in the removing unit 29 and the conveyor belt 5 and the medium M can be prevented from being wetted with the cleaning liquid. In the liquid ejecting apparatus 1 according to the present embodiment, unlike the liquid ejecting apparatus 1 according to the first embodiment, the area of the removing unit 29 after contact with the brush 25 can be blown by the first blowing unit 28, and the area of the transport belt 5 after contact with the brush 10 can be blown by the second blowing unit 13, so that the degree and arrangement of blowing of the first blowing unit 28 and the second blowing unit 13 can be optimized individually.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these modifications are needless to say included in the scope of the invention.

Claims (9)

1. A liquid ejecting apparatus includes:

an ejection section that ejects liquid onto a medium;

a conveying unit that has a conveyor belt that supports the medium from which the liquid is ejected, and that conveys the medium in a conveying direction by rotating the conveyor belt;

a removing section provided upstream of the ejecting section in the conveying direction, the removing section removing the attached matter from the medium by attaching the attached matter to the medium to the removing section; and

a first cleaning section for cleaning the removing section by removing the attached matter attached to the removing section.

2. The liquid ejection device according to claim 1,

the liquid ejecting apparatus further includes a second cleaning unit for cleaning the conveyor belt,

the first cleaning part has a first brush in contact with the removing part,

the second cleaning unit has a second brush that contacts the conveyor belt.

3. The liquid ejection device according to claim 2,

the liquid ejecting apparatus further includes a common cleaning tank that stores a cleaning liquid, and the first brush and the second brush are immersed in the cleaning liquid together.

4. The liquid ejection device according to claim 2 or 3,

the liquid ejecting apparatus further includes a common blowing unit that blows air to both a region of the removing unit that has contacted the first brush and a region of the conveyor belt that has contacted the second brush.

5. The liquid discharge apparatus according to claim 2, further comprising:

a first cleaning tank for storing the cleaning liquid for soaking the first brush; and

and the second cleaning tank is used for storing and soaking the cleaning liquid of the second brush.

6. The liquid discharge apparatus according to claim 2 or 5, further comprising:

a first blowing section that blows air to a region of the removing section after contact with the first brush; and

and a second blowing section that blows air to a region of the conveyor belt that has contacted the second brush.

7. The liquid ejection device according to claim 1,

the liquid ejecting apparatus further includes a mounting portion to which a rolled medium as the medium is mounted, the mounting portion feeding the medium to the conveying portion,

the removing unit is disposed at a position contacting a rolled portion of the rolled medium mounted on the mounting unit.

8. The liquid ejection device according to claim 7,

the removing part is configured such that an annular member having an adhesive force rotates with the rotation of the rolled medium,

the rotation direction of the conveyor belt is opposite to the rotation direction of the annular member.

9. The liquid ejection device according to claim 7 or 8,

the mounting portion is configured to be movable in a direction approaching the removing portion provided below the rolled medium by the weight of the rolled medium and the mounting portion.

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