JP2015182849A - Recording device and cleaning method of transfer belt - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inhibit failures caused when a transfer belt is cleaned in a recording device including the transfer belt for transferring a recorded medium and a cleaning part for cleaning the transfer belt.SOLUTION: A recording device 1 includes: a transfer belt 3 which transfers a recorded medium M; and a cleaning part 11 which cleans the transfer belt 3. The cleaning part 11 has a spiral brush 21 where a hair-like contact part 23 is provided forming a spiral shape relative to a rotary shaft 24. The recording device 1 having the structure inhibits failures caused when the transfer belt 3 is cleaned.

Description

  The present invention relates to a recording apparatus and a method for cleaning a conveyor belt.

Conventionally, a recording apparatus that transports a recording medium by a transport belt has been used. Among these, a recording apparatus including a cleaning unit that cleans the transport belt is used.
For example, Patent Document 1 discloses a recording apparatus that includes an endless belt that conveys a recording medium while being adhesively fixed, and a cleaning unit that includes a wiping roller having a circumferential surface made of a polymer porous body. ing.

JP 11-192694 A

However, as disclosed in Patent Document 1, a conveyance belt that conveys a recording medium;
In a recording apparatus including a cleaning unit that cleans the transport belt, when the transport belt is cleaned, a frictional noise between the transport belt and the cleaning unit may be large. In addition, the conveyance belt may vibrate due to the contact between the conveyance belt and the cleaning unit, which may adversely affect the recording quality. Furthermore, a large amount of bubbles due to ink or cleaning liquid may be generated due to contact between the transport belt and the cleaning unit.
For this reason, a transport belt for transporting the recording medium, a cleaning unit for cleaning the transport belt,
In the recording apparatus having the above, it is required to suppress the above-described problems when cleaning the transport belt.

SUMMARY OF THE INVENTION An object of the present invention is to suppress problems in cleaning the transport belt in a recording apparatus that includes a transport belt that transports a recording medium and a cleaning unit that cleans the transport belt.

A recording apparatus according to a first aspect of the present invention for solving the above-described problem includes a transport belt that transports a recording medium, and a cleaning unit that cleans the transport belt, and the cleaning unit is hairy. The contact portion has a spiral brush provided spirally with respect to the rotation axis.

According to a second aspect of the present invention, there is provided a recording apparatus according to the first aspect, further comprising: a control unit that controls driving of the conveyance belt and the spiral brush, wherein the control unit is configured to intermittently drive the conveyance belt. It is controllable and it can control so that the stop time in the said intermittent drive becomes more than the rotation period of the said spiral brush.

The recording apparatus according to a third aspect of the present invention is characterized in that, in the second aspect, the control unit can control the stop time.

In the recording apparatus of the fourth aspect of the present invention, in the second or third aspect, the control unit includes:
The rotational speed of the spiral brush can be controlled.

A recording apparatus according to a fifth aspect of the present invention, in any one of the second to fourth aspects,
A recording unit capable of ejecting ink onto the recording medium transported by the transport belt, and the control unit controls the stop time and the rotational speed of the spiral brush according to the type of the ink; Can be selected.

A recording apparatus according to a sixth aspect of the present invention, in any one of the first to fifth aspects,
The angle of the spiral formed by the contact portion is 45 degrees or more and less than 90 degrees with respect to the rotation axis.

A recording apparatus according to a seventh aspect of the present invention is the recording apparatus according to any one of the first to sixth aspects,
The spiral brush is configured such that a width of the contact portion with respect to an interval between the contact portions is less than twice.

In the recording apparatus according to the eighth aspect of the present invention, in any one of the first to seventh aspects,
A foam recovery part that recovers foam generated in the contact part is provided at one end of the rotating shaft, and the spiral brush rotates the contact part from the one end toward the other end. The foam is configured to be wound in a first direction with respect to an axis, and is configured to rotate in a direction in which the bubble moves from the other end to the one end.

A recording apparatus according to a ninth aspect of the present invention, in any one of the first to seventh aspects,
A foam recovery part that recovers foam generated in the contact part is provided at both ends of the rotating shaft, and the spiral brush is configured such that the contact part is connected to the first end of the rotating shaft from one end of the rotating shaft. The contact portion is wound in a first direction toward the point, and the contact portion is wound from the first point of the rotation shaft to the other end of the rotation shaft in a second direction opposite to the first direction. The foam is configured to rotate in a direction in which the bubble moves from the first point to both ends of the rotation shaft.

According to a tenth aspect of the present invention, there is provided a conveyance belt cleaning method comprising: a conveyance belt that conveys a recording medium; and a conveyance brush having a spiral brush in which a hair-like contact portion is provided spirally with respect to a rotation axis. A cleaning method for the transport belt in a recording apparatus including a cleaning unit, wherein the transport belt is intermittently driven, and a stop time in the intermittent drive is equal to or greater than a rotation period of the spiral brush.

The method for cleaning a conveyor belt according to an eleventh aspect of the present invention is characterized in that, in the tenth aspect, the stop time is adjusted so that the stop time in the intermittent drive is equal to or greater than the rotation period of the rotating brush. To do.

According to a twelfth aspect of the present invention, in the tenth or eleventh aspect, the conveyor belt cleaning method adjusts the rotational speed of the spiral brush, and the stop time in the intermittent drive is equal to or greater than the rotational period of the rotary brush. It is characterized by.

The conveying belt cleaning method according to a thirteenth aspect of the present invention is any one of the tenth to twelfth aspects.
In one aspect, the recording apparatus includes a recording unit capable of ejecting ink onto the recording medium conveyed by the conveyance belt, and adjusts the stop time or the spiral brush according to the type of the ink The stop time in the intermittent drive is set to be equal to or longer than the rotation period of the rotary brush.

According to the present invention, in a recording apparatus that includes a transport belt that transports a recording medium and a cleaning unit that cleans the transport belt, it is possible to suppress problems in cleaning the transport belt.

1 is a schematic side view illustrating a recording apparatus according to a first embodiment of the invention. 1 is a block diagram illustrating a recording apparatus according to a first embodiment of the invention. FIG. 3 is a schematic diagram illustrating a spiral brush of the recording apparatus according to the first embodiment of the invention. FIG. 3 is a schematic diagram illustrating a spiral brush of the recording apparatus according to the first embodiment of the invention. Schematic showing the spiral brush of the recording device which concerns on Example 2 of this invention. The flowchart showing one Example of the washing | cleaning method of the conveyance belt of this invention.

Hereinafter, a recording apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
[Example 1] (FIGS. 1 to 5)
FIG. 1 is a schematic side view illustrating a recording apparatus 1 according to a first embodiment of the invention.

The recording apparatus 1 of the present embodiment includes a sending unit 2 that rotates and sends a roll-shaped recording medium M. The sending unit 2 of the present embodiment includes a tension feed path T that sends the recording medium M to the conveying belt 3 in a stretched state, and a slack feeding path S that sends the recording medium M to the conveying belt 3 in a slackened state. It is possible to send the recording medium M to the conveyor belt 3 through the two types of delivery paths.
In the recording apparatus 1 of the present embodiment, the slack sensor 15 detects whether the recording medium M is slackened more than a predetermined slack when the recording medium M is sent to the transport belt 3 in a slack state. Is provided. The slack sensor 15 is an optical sensor that can detect whether or not the recording medium M is in a predetermined position, but a sensor having a configuration other than the optical sensor of the present embodiment may be used.

The conveying belt 3 of this embodiment is an endless belt that is stretched over in a state where an adhesive is applied to the support surface 7 that supports the recording medium M and tension is applied to the driving roller 4 and the driven roller 5.
In addition, a pressure roller 6 is provided at a position facing the driven roller 5, and the delivery unit 2
The recording medium M delivered from is pressed against the conveyor belt 3 by the pressure roller 6 and is affixed to the conveyor belt 3.
Then, the recording medium M attached to the transport belt 3 is transported in the transport direction A when the transport belt 3 is rotationally moved by the driving force of the driving roller 4.

A recording unit 8 is provided at a position facing the support surface 7 of the conveyance belt 3 in the conveyance path of the recording medium M by the conveyance belt 3. The recording unit 8 includes a recording head 9 that ejects ink onto the recording medium M, and a carriage 10 that carries the recording head 9 and reciprocates in a direction B that intersects the transport direction A.
Thus, the recording unit 8 of this embodiment performs recording by reciprocating the recording head 9 in the direction B. During the recording operation, when the recording head 9 is moved in the direction B, the conveyance belt 3 stops, and when the movement of the recording head 9 in one direction of the direction B is completed, the conveyance belt 3 moves to a predetermined amount. Stop after moving. Then, after the predetermined amount of movement of the conveying belt 3 and while the conveying belt 3 is stopped, the recording head 9 moves in the direction of the direction B opposite to the one direction. That is, the conveyor belt 3 of this embodiment moves intermittently in response to the reciprocating movement of the recording head 9.

The recording apparatus 1 according to the present embodiment includes the recording head 9 that performs recording while reciprocating. However, the recording apparatus 1 includes a so-called line head in which a plurality of nozzles that eject ink are provided in a direction B intersecting the transport direction A. It may be a device.
Here, the “line head” is provided so that the nozzle area formed in the direction B intersecting the transport direction A of the recording medium M can cover the entire direction B of the recording medium M, and recording is performed. This is a recording head used in a recording apparatus that forms an image by fixing one of the head and the recording medium M and moving the other. Note that the nozzle area in the direction B of the line head may not be able to cover the entire direction B of all the recording media M supported by the recording apparatus.

Note that the recording apparatus 1 of the present embodiment is configured to be able to record up to the end of the recording medium M in the width direction (direction B). In this case, the ink ejected from the recording head 9 is discharged. There may be cases where it adheres to the conveyor belt 3. Therefore, the recording apparatus 1 according to the present embodiment is provided with a cleaning unit 11 that can clean the transport belt 3 to which the ink has adhered.

The cleaning unit 11 includes a spiral brush 21 and a cleaning liquid tank 22 capable of adhering the cleaning liquid to the spiral brush 21. The cleaning unit 11 includes a cleaning unit lifting motor 32 (see FIG. 2), and is movable in a direction in contact with the transport belt 3 and a direction in which the transport unit 3 is separated.

The recording medium M recorded by the recording head 9 is wound by the winding unit 12.
The recording apparatus 1 according to the present embodiment can wind up the recording medium M with the roll paper P interposed therebetween in order to suppress ink back-off in the recorded recording medium M wound around the winding unit 12. It is the composition. Winding the recording medium M with the roll paper P sandwiched between the roll paper delivery unit 13
The roll paper P is set on the recording medium M, and the roll paper P is placed on the surface opposite to the recording surface of the recording medium M from the transport belt 3 toward the winding unit 12. It can carry out by winding in the winding part 12 collectively.

Further, the recording apparatus 1 of this embodiment includes a CPU that controls the entire recording apparatus 1, a ROM that stores various control programs executed by the CPU, a RAM that can temporarily store data, and the like. A control unit 14 that performs drive control of each component of the drive system of the recording apparatus 1 is provided.

Next, the electrical configuration of the recording apparatus 1 of the present embodiment will be described.
FIG. 2 is a block diagram of the recording apparatus 1 of the present embodiment.

The recording apparatus 1 of the present embodiment has a control unit 14. The controller 14 is a spiral brush motor 16 that is a drive source for rotationally driving the spiral brush 21, and a cleaning source that is a drive source for moving the cleaning unit 11 in a direction in contact with the transport belt 3 and a direction in which the cleaning unit 11 is separated from the transport belt 3. A part raising / lowering motor 32, a washing part position sensor 17 for detecting the position of the washing part 11, a carriage motor 20 capable of moving the carriage 10 in the direction B, and a driving roller 4 for rotationally driving the conveyance belt 3.
Are connected to each component of the drive system of the recording apparatus 1, such as a belt motor 29 which is a drive source of the recording apparatus 1.

The control unit 14 can be connected to an external device PC 18 via an interface (not shown), and can receive instructions from the user via a GUI (graphic user interface) 19 of the PC 18. Yes.

With such a configuration, the control unit 14 according to the present exemplary embodiment allows the spiral brush motor 16, the cleaning unit lifting / lowering motor 32, the cleaning unit position sensor 17, the carriage motor 20, and the belt motor based on a user instruction input from the GUI 19. It is possible to control the drive of each component of the drive system of the recording apparatus 1 such as 29.

Further, as described above, the control unit 14 of the present embodiment can control the driving of the conveyance belt 3 and the spiral brush 21.
And the control part 14 can be controlled so that the conveyance belt 3 drives intermittently, and can be controlled so that the stop time in the said intermittent drive becomes more than the rotation period of the spiral brush 21. FIG.
For this reason, when the stop time becomes equal to or longer than the rotation period of the spiral brush 21, the spiral brush 21 makes one rotation or more during the stop time, so that a portion where the spiral brush 21 does not contact the conveyance belt 3 occurs. That is restrained. In this way, it is possible to suppress the occurrence of a poorly cleaned portion on the conveyor belt 3.

In addition, the control unit 14 of the present embodiment can control the belt motor 29 to increase the stop time as control for stopping the intermittent drive to be equal to or longer than the rotation period of the spiral brush 21. is there.
In the intermittent drive, the recording operation by the recording head 9 is performed while the conveyance belt 3 is stopped, and the movement in the intermittent drive is started with the end of the recording operation as a trigger. Therefore, the stop time in the intermittent drive varies depending on the time of the recording operation. For example, when the width (printing width) in the direction B of the recording medium M is narrow, the recording operation is completed in a short time, and therefore the intermittent drive stop time is shortened.
Therefore, in such a case, by controlling (extending) the time from the end of the printing operation to the start of the intermittent drive movement, the stop time in the intermittent drive is controlled to be equal to or longer than the rotation cycle of the spiral brush 21. Can do.
That is, without stopping the rotation speed of the spiral brush 21, the stop time in the intermittent drive can be controlled to be equal to or longer than the rotation cycle of the spiral brush 21. For this reason, by increasing the rotational speed of the spiral brush 21, it is possible to suppress the generation of bubbles due to contact between the transport belt 3 and the cleaning unit 11.

Moreover, the control part 14 of a present Example is control which shortens the said rotation period by making the rotational speed of the spiral brush 21 faster as control which makes the stop time in the said intermittent drive become more than the rotation period of the spiral brush 21. Is also possible. For example, when the printing width is narrow and the printing operation is completed in a short time, this corresponds to control for increasing the rotation speed and shortening the rotation cycle.
That is, it is possible to control the stop time in the intermittent drive to be equal to or longer than the rotation cycle of the spiral brush 21 without increasing the stop time. For this reason, it is possible to suppress a decrease in recording speed by increasing the stop time.

Further, as described above, the recording apparatus 1 according to the present exemplary embodiment includes the recording unit that can eject ink onto the recording medium M that is transported by the transport belt 3.
And the control part 14 of a present Example can select the control which lengthens the said stop time according to the kind of said ink, and the control which shortens the said rotation period by making the rotational speed of the spiral brush 21 faster. . Specifically, for example, when the ink contains a large amount of a surfactant and easily foams, the generation of bubbles is suppressed by increasing the stop time, and the ink is difficult to foam. It is possible to suppress a decrease in recording speed by increasing the rotational speed of the spiral brush 21.
Therefore, it is possible to suppress the generation of bubbles by increasing the rotation speed of the spiral brush 21 and the decrease of the recording speed by increasing the stop time while maintaining a balance according to the type of ink. can do.

Next, the spiral brush 21 of the present embodiment will be described.
3 and 4 are schematic views showing the spiral brush 21 of this embodiment, and FIG.
FIG. 4 is an enlarged sectional view of the spiral brush 21.

As shown in FIG. 3, the spiral brush 21 of this embodiment has a hair-like contact portion 23 having a rotation shaft 24.
Is provided spirally.
That is, the recording apparatus 1 according to the present embodiment includes a transport belt 3 that transports the recording medium M and a cleaning unit 11 that cleans the transport belt 3, and the cleaning unit 11 has a hair-like contact unit 23 that rotates. Shaft 24
And a spiral brush 21 provided in a spiral shape.
With such a configuration, the contact area between the conveyance belt 3 and the contact portion 23 is reduced, generation of frictional noise between the conveyance belt 3 and the cleaning unit 11, generation of vibration of the conveyance belt 3, and conveyance belt 3 and cleaning. Problems such as generation of bubbles due to contact with the portion 11 are suppressed.

In addition, as shown in FIG. 4, in the spiral brush 21 of this embodiment, the channel 30 is fixed to the rotating shaft 24 extending in the direction B, and the hair-like contact portion 23 is sandwiched between the channels 30. This is a so-called channel brush fixed by the core rod 31.
By making the spiral brush 21 of this embodiment a brush having such a configuration, the contact portion 23 is difficult to come off.
However, the brush is not limited to such a configuration.

Further, as shown in FIG. 3, the contact portion 23 of the present embodiment is provided in a spiral shape with an angle Θ of 45 degrees or more and less than 90 degrees with respect to the rotation shaft 24. In other words, the angle of the spiral formed by the contact portion 23 is 45 degrees or more and less than 90 degrees with respect to the rotation shaft 24.
With such a configuration, the contact area of the contact portion 23 with respect to the conveyance belt 3 in the rotation direction of the rotation shaft 24 is reduced. Therefore, problems such as generation of frictional noise between the conveyor belt 3 and the cleaning unit 23, generation of vibration of the conveyor belt 3, and generation of bubbles due to contact between the conveyor belt 3 and the cleaning unit 11 are suppressed.

Further, the spiral brush 21 of the present embodiment has an interval L between the contact portions 23 as shown in FIG.
The width L1 of the contact portion with respect to 2 is configured to be less than twice (that is, L1 / L2 <2).
With such a configuration, the contact area of the contact portion 23 with respect to the conveyor belt 3 is reduced. Therefore, problems such as generation of frictional noise between the conveyor belt 3 and the cleaning unit 23, generation of vibration of the conveyor belt 3, and generation of bubbles due to contact between the conveyor belt 3 and the cleaning unit 11 are suppressed.

In addition, as shown in FIG. 3, the recording apparatus 1 according to the present embodiment rotates a bubble recovery unit 25 that recovers bubbles generated in the contact unit 23 when the contact unit 23 contacts the conveyance belt 3. One end portion 26 of the shaft 24 is provided. The spiral brush 21 has a contact portion 23 at one end portion 26.
Direction R in which the foam moves from the other end 27 to one end 26 while being wound in the first direction (left-handed) with respect to the rotation shaft 24 from the other end 27 to the other end 27. It is comprised so that it may rotate. The rotation in the direction R is a left rotation when viewed from one end 26 to the other end 27 in FIG.
Thus, the spiral brush 21 rotates in the direction in which the bubbles move to the bubble recovery unit 25. For this reason, the collection | recovery property of the said foam is improved and it suppresses that the said foam adheres to the structural member etc. inside the recording device 1. FIG.

[Example 2] (FIG. 5)
Next, the recording apparatus of Example 2 will be described in detail with reference to the accompanying drawings.
FIG. 5 is a schematic front view showing the spiral brush 21 of the present embodiment. In addition, the structural member which is common in the said Example is shown with the same code | symbol, and abbreviate | omits detailed description.
The recording apparatus 1 according to the present embodiment is the same as the recording apparatus 1 according to the first embodiment except for the shape of the spiral brush 21.
It is the same composition as.

In the recording apparatus 1 of the present embodiment, the contact portion 2 is brought about by the contact portion 23 coming into contact with the transport belt 3.
3 is provided at both end portions 26 and 27 of the rotating shaft 24. The spiral brush 21 is configured such that the contact portion 23 is wound in the first direction (left-handed) from one end portion 26 of the rotation shaft 24 toward the first point 28 of the rotation shaft 24, and the contact portion 23 rotates. It is configured to be wound in a second direction (right-handed) opposite to the first direction from the first point 28 of the shaft 24 toward the other end 27 of the rotary shaft 24, and the foam is first It is configured to rotate in a direction R that moves from the point 28 to both ends 26 and 27 of the rotary shaft 24.
Thus, the spiral brush 21 rotates in the direction in which the bubbles move to the bubble recovery portions 25 at both ends 26 and 27. For this reason, the collection | recovery property of the said foam is improved and it suppresses that the said foam adheres to the structural member etc. inside the recording device 1. FIG.

[Example of Cleaning Method for Conveying Belt] (FIG. 6)
Next, an embodiment of a method for cleaning the transport belt 3 using the recording apparatus 1 of the above embodiment will be described.
FIG. 6 is a flowchart of the cleaning method for the conveyor belt 3 of this embodiment.

When the cleaning method for the transport belt 3 according to the present embodiment is started, first, in step S110, the control unit 14 acquires ink information from a chip provided in an ink cartridge set in the recording apparatus 1.

Next, in step S120, the control unit 14 determines from the ink information acquired in step S110 whether the ink in the ink cartridge set in the recording apparatus 1 is easily bubbled or difficult to bubble. Whether the ink is easy to foam or difficult to foam is stored in the ROM of the control unit 14 in the ROM or the like for each of the inks that can be used in the recording apparatus 1 of the present embodiment. This can be determined by associating which ink in the ink cartridge set in the recording apparatus 1 is the ink.

If it is determined in step S120 that the ink is difficult to foam, the process proceeds to step S130, and the spiral brush motor 16 is driven by increasing the rotational speed of the spiral brush 21.
The conveyor belt 3 is washed with the spiral brush 21.
On the other hand, if it is determined in step S120 that the ink is likely to foam, step S140 is performed.
Next, the conveyor belt 3 is cleaned with the spiral brush 21 by driving the belt motor 29 with a longer stop time in the intermittent driving of the conveyor belt 3.
Here, the conditions set in step S <b> 130 and step S <b> 140 are both conditions set so that the stop time in the intermittent drive of the transport belt 3 is equal to or longer than the rotation period of the spiral brush 21.

In step S150, the conveyor belt 3 is cleaned with the spiral brush 21 until it is determined that the cleaning of the conveyor belt 3 is finished, and the cleaning method for the conveyor belt 3 of this embodiment is completed.

As described above, in the cleaning method for the conveyor belt 3 according to the present embodiment, the conveyor belt 3 is intermittently driven as shown in Step S130 and Step S140, and the stop time in the intermittent drive is the rotation period of the spiral brush 21. That's it.
As described above, when the stop time is equal to or longer than the rotation period of the spiral brush 21, the spiral brush 21 makes one rotation or more during the stop time, and thus a portion where the spiral brush 21 does not contact the transport belt 3 occurs. This prevents the occurrence of poorly cleaned portions on the conveyor belt 3.

Further, as described above, in the method for cleaning the transport belt 3 according to the present embodiment, the stop time in the intermittent drive is set to be equal to or longer than the rotation period of the spiral brush 21 by increasing the stop time as represented in step S140. can do.
For this reason, it is possible to suppress the generation of bubbles by increasing the rotational speed of the spiral brush 21.

Further, as described above, the method for cleaning the transport belt 3 according to the present embodiment increases the rotational speed of the spiral brush 21 and shortens the rotation cycle, as represented by step S130.
The stop time in the intermittent drive can be made longer than the rotation period of the spiral brush 21.
For this reason, it is possible to prevent the recording speed from being slowed by increasing the stop time.

Further, as described above, in the method for cleaning the transport belt 3 according to the present embodiment, as shown in step S120, the stop time is increased and the rotational speed of the spiral brush 21 is increased according to the type of ink used. To shorten the rotation period.
For this reason, the occurrence of bubbles by increasing the rotation speed of the spiral brush 21 and the decrease in recording speed by increasing the stop time are balanced according to the type of ink used. Can be suppressed.

In addition, this invention is not limited to the said Example, A various deformation | transformation is possible within the range of the invention described in the claim, and it cannot be overemphasized that they are also contained in the scope of the present invention.
The present invention has been described in detail based on the specific embodiments. Here, about the present invention,
I will explain it all together again.

The recording apparatus 1 according to the first aspect of the present invention for solving the above-described problem includes a transport belt 3 that transports the recording medium M, and a cleaning unit 11 that cleans the transport belt 3. The hair-like contact portion 23 has a spiral brush 21 provided spirally with respect to the rotating shaft 24.

According to this aspect, the cleaning part 11 has the spiral brush 21 in which the hair-like contact part 23 is provided spirally with respect to the rotation shaft 24. That is, the contact area between the transport belt 3 and the contact portion 23 can be reduced. For this reason, it is possible to suppress problems such as generation of frictional noise between the conveyance belt 3 and the cleaning unit 11, generation of vibration of the conveyance belt 3, and generation of bubbles due to contact between the conveyance belt 3 and the cleaning unit 11. become.

The recording apparatus 1 according to the second aspect of the present invention includes a control unit 14 that controls driving of the conveyance belt 3 and the spiral brush 21 in the first aspect, and the control unit 14 intermittently drives the conveyance belt 3. The stop time in the intermittent drive can be controlled to be equal to or longer than the rotation cycle of the spiral brush 21.

According to this aspect, the control unit 14 can control the conveyor belt 3 to be intermittently driven,
The stop time in the intermittent drive can be controlled so as to be longer than the rotation period of the spiral brush 21. That is, when the stop time is equal to or longer than the rotation period of the spiral brush 21, the spiral brush 21 makes one rotation or more during the stop time, so that a portion where the spiral brush 21 does not contact the transport belt 3 occurs. It is possible to suppress the occurrence of poorly cleaned portions on the conveyor belt 3.

The recording apparatus 1 according to a third aspect of the present invention is characterized in that, in the second aspect, the control unit 14 can control the stop time.

According to this aspect, the control unit 14 can control the stop time. That is, without increasing the rotational speed of the spiral brush 21, the stop time in the intermittent drive is the spiral brush 2.
It can be controlled so as to be at least one rotation cycle. For this reason, it is possible to suppress the generation of bubbles by increasing the rotational speed of the spiral brush 21.

The recording apparatus 1 according to the fourth aspect of the present invention is characterized in that, in the second or third aspect, the control unit 14 can control the rotational speed of the spiral brush 21.

According to this aspect, the control unit 14 can control the rotational speed of the spiral brush 21. Thereby, since the rotation period of the spiral brush 21 can be adjusted, without extending the said stop time,
The stop time in the intermittent drive can be controlled so as to be longer than the rotation period of the spiral brush 21. For this reason, it can suppress that recording speed becomes slow by extending the said stop time.

A recording apparatus 1 according to a fifth aspect of the present invention includes, in any one of the second to fourth aspects, a recording unit 8 that can eject ink onto a recording medium M that is transported by the transport belt 3, The control unit 14 can select the control of the stop time and the control of the rotational speed of the spiral brush 21 according to the type of the ink.

According to this aspect, the control unit 14 can select between the control of the stop time and the control of the rotational speed of the spiral brush 21 according to the type of ink. Therefore, it is possible to suppress the generation of bubbles by increasing the rotation speed of the spiral brush 21 and the decrease of the recording speed by increasing the stop time while maintaining a balance according to the type of ink. can do.

In the recording apparatus 1 according to the sixth aspect of the present invention, in any one of the first to fifth aspects, the angle of the spiral formed by the contact portion 23 is 45 degrees or more with respect to the rotation axis 24.
The angle is less than degrees.

According to this aspect, the contact portion 23 is provided at an angle of 45 degrees or more and less than 90 degrees with respect to the rotation shaft 24. That is, the contact portion 23 can reduce the contact area in the rotation direction of the rotation shaft 24 with respect to the transport belt 3. For this reason, it is possible to suppress problems such as generation of frictional noise between the conveyance belt 3 and the cleaning unit 11, generation of vibration of the conveyance belt 3, and generation of bubbles due to contact between the conveyance belt 3 and the cleaning unit 11. It becomes possible.

In the recording apparatus 1 according to the seventh aspect of the present invention, in any one of the first to sixth aspects, the spiral brush 21 has a width of the contact portion L1 that is less than twice the distance L2 between the contact portions 23. It is comprised so that it may become.

According to this aspect, the spiral brush 21 is configured such that the width of the contact portion 23 with respect to the distance L2 between the contact portions 23 is less than twice. That is, the contact part 23 can reduce the contact area with respect to the conveyance belt 3. For this reason, it is possible to suppress problems such as generation of frictional noise between the conveyance belt 3 and the cleaning unit 11, generation of vibration of the conveyance belt 3, and generation of bubbles due to contact between the conveyance belt 3 and the cleaning unit 11. Become.

The recording apparatus 1 according to the eighth aspect of the present invention is the recording apparatus 1 according to any one of the first to seventh aspects, wherein the foam recovery part 25 that recovers the foam generated at the contact part 23 is connected to one end of the rotating shaft 24. The spiral brush 21 includes a contact portion 23 wound in the first direction with respect to the rotation shaft 24 from one end portion 26 toward the other end portion 27, and the foam is It is comprised so that it may rotate in the direction R which moves to the one edge part 26 from the other edge part 27, It is characterized by the above-mentioned.

According to this aspect, the spiral brush 21 has the contact portion 23 from one end portion 26 to the other end portion 27.
The foam is wound in the first direction with respect to the rotating shaft 24 and rotates in the direction R in which the bubbles move from the other end portion 27 to the one end portion 26. That is, the spiral brush 2
1 rotates in the direction in which the bubbles move to the bubble recovery unit 25. For this reason, the collection | recovery property of the said foam can be improved.

The recording apparatus 1 according to the ninth aspect of the present invention is the recording apparatus 1 according to any one of the first to seventh aspects, wherein the foam recovery part 25 that recovers the foam generated at the contact part 23 is connected to both ends of the rotary shaft 24. In the spiral brush 21, the contact portion 23 is provided on the rotary shaft 2 from one end portion 26 of the rotary shaft 24.
4 is wound in the first direction toward the first point 28, and the contact portion 23 is the first of the rotating shaft 24.
From the point 28 toward the other end 27 of the rotary shaft 24, the foam is wound in a second direction opposite to the first direction, and the bubbles are formed from both the first point 28 and the rotary shaft 24. It is comprised so that it may rotate in the direction R which moves to the edge parts 26 and 27. It is characterized by the above-mentioned.

According to this aspect, the spiral brush 21 is configured such that the contact portion 23 is wound in the first direction from the one end portion 26 of the rotation shaft 24 toward the first point 28 of the rotation shaft 24, and the contact portion 23 is formed. Rotating shaft 24
From the first point 28 toward the other end 27 of the rotating shaft 24, the second member is wound in a second direction opposite to the first direction, and the bubbles are rotated from the first point 28 to the rotating shaft 24. It is comprised so that it may rotate to the direction R which moves to both the edge parts 26 and 27. FIG. That is, the spiral brush 21 rotates in the direction in which the bubbles move to the bubble recovery unit 25. For this reason, the collection | recovery property of the said foam can be improved.

In the method for cleaning the transport belt 3 according to the tenth aspect of the present invention, the transport belt 3 that transports the recording medium M and the spiral brush 21 in which the hair-like contact portion 23 is provided spirally with respect to the rotation shaft 24. And a cleaning unit 11 for the conveying belt 3 having the above-described cleaning method for the conveying belt 3 in the recording apparatus 1. It is characterized by.

According to this aspect, the conveyance belt 3 is intermittently driven, and the stop time in the intermittent driving is set to be equal to or longer than the rotation cycle of the spiral brush 21. That is, the stop time is the spiral brush 21.
Since the spiral brush 21 makes one or more rotations during the stop time,
It can suppress that the part which the spiral brush 21 does not contact with respect to the conveyance belt 3 generate | occur | produces, and can suppress that a poor cleaning part generate | occur | produces in the conveyance belt 3. FIG.

The cleaning method for the conveyor belt 3 according to the eleventh aspect of the present invention is characterized in that, in the tenth aspect, the stop time is adjusted so that the stop time in the intermittent drive is equal to or greater than the rotation period of the rotating brush. And

According to this aspect, the stop time is adjusted so that the stop time in the intermittent drive is equal to or greater than the rotation period of the rotating brush. That is, the stop time in the intermittent drive can be made longer than the rotation period of the spiral brush 21 without increasing the rotation speed of the spiral brush 21. For this reason, it is possible to suppress the generation of bubbles by increasing the rotational speed of the spiral brush 21.

In the twelfth aspect of the present invention, the cleaning method for the conveyor belt 3 according to the tenth or eleventh aspect of the present invention adjusts the rotational speed of the spiral brush 21 so that the stop time in the intermittent drive is the rotational period of the rotary brush. It is characterized by the above.

According to this aspect, the rotational speed of the spiral brush 21 is adjusted so that the stop time in the intermittent drive is equal to or greater than the rotation period of the rotary brush. That is, the stop time in the intermittent drive can be made longer than the rotation cycle of the spiral brush 21 without lengthening the stop time. For this reason, it is possible to prevent the recording speed from being slowed by increasing the stop time.

According to a thirteenth aspect of the present invention, in the cleaning method for the conveyance belt 3 according to any one of the tenth to twelfth aspects, the recording apparatus 1 ejects ink onto the recording medium M conveyed by the conveyance belt 3. A recording unit 8 capable of adjusting the stop time or adjusting the rotational speed of the spiral brush 21 according to the type of ink, so that the stop time in the intermittent drive is equal to or greater than the rotation period of the rotary brush. It is characterized by selecting to do.

According to this aspect, the stop time is adjusted or the spiral brush 2 according to the type of the ink.
The rotation speed of 1 is adjusted to select that the stop time in the intermittent drive is equal to or greater than the rotation period of the rotary brush. Therefore, it is possible to suppress the generation of bubbles by increasing the rotation speed of the spiral brush 21 and the decrease of the recording speed by increasing the stop time while maintaining a balance according to the type of ink. can do.

In the recording apparatus according to the above-described embodiment, the spiral brush 21 is described as rotating in the direction R. However, the invention is not limited to this, and the conveyance belt 3 may be switched while switching between rotation in the direction R and reverse rotation thereof. The switching timing may be the timing of intermittent drive movement or every predetermined time.
When the rotation direction of the spiral brush 21 is switched as described above, for example, in the case of the first embodiment, the foam recovery unit 25 may be provided at both end portions 26 and 27 as in the second embodiment. By switching the direction, the effect of making the state of the cleaning liquid in the cleaning liquid tank 22 uniform or the cleaning liquid tank 22
There is also an effect of reducing bubbles generated.

1 recording device, 2 delivery section, 3 transport belt, 4 drive roller, 5 driven roller,
6 pressure roller, 7 support surface, 8 recording section, 9 recording head, 10 carriage,
11 Cleaning section, 12 Winding section, 13 Roll paper feeding section, 14 Control section,
15 Looseness sensor, 16 Spiral brush motor, 17 Cleaning part position sensor,
18 PC, 19 GUI, 20 Carriage motor, 21 Spiral brush,
22 cleaning liquid tank, 23 contact part, 24 rotating shaft, 25 foam recovery part,
26 one end of the rotating shaft 24, 27 the other end of the rotating shaft 24,
28 First point of rotating shaft 24, 29 belt motor, 30 channels,
31 core rod, 32 cleaning unit lifting motor, M recording medium, P roll paper,
S slack feed path, T tension feed path

Claims (13)

A transport belt for transporting a recording medium;
A cleaning section for cleaning the transport belt,
The recording apparatus according to claim 1, wherein the cleaning unit includes a spiral brush in which a hair-like contact portion is provided spirally with respect to the rotation axis. The recording apparatus according to claim 1,
A control unit for controlling driving of the conveyor belt and the spiral brush;
The recording apparatus, wherein the control unit is controllable so that the conveyance belt is intermittently driven, and can be controlled so that a stop time in the intermittent drive is equal to or longer than a rotation cycle of the spiral brush. The recording apparatus according to claim 2,
The recording apparatus, wherein the control unit is capable of controlling the stop time. The recording apparatus according to claim 2 or 3,
The recording apparatus, wherein the control unit is capable of controlling a rotation speed of the spiral brush. The recording apparatus according to any one of claims 2 to 4,
A recording unit capable of ejecting ink onto the recording medium transported by the transport belt;
The recording apparatus according to claim 1, wherein the control unit can select between the control of the stop time and the control of the rotational speed of the spiral brush according to the type of ink. The recording apparatus according to any one of claims 1 to 5,
The angle of the spiral formed by the contact portion is 45 degrees or more 90 degrees with respect to the rotation axis.
A recording apparatus characterized by being less than a degree. The recording apparatus according to any one of claims 1 to 6,
The recording apparatus according to claim 1, wherein the spiral brush is configured such that a width of the contact portion with respect to an interval between the contact portions is less than twice. The recording apparatus according to any one of claims 1 to 7,
A foam recovery part for recovering foam generated in the contact part is provided at one end of the rotating shaft,
The spiral brush
The contact portion is configured to be wound in the first direction with respect to the rotation shaft from the one end portion toward the other end portion, and
The recording apparatus is configured to rotate in a direction in which the bubble moves from the other end to the one end. The recording apparatus according to any one of claims 1 to 7,
A foam recovery part for recovering foam generated in the contact part is provided at both ends of the rotating shaft,
The spiral brush
The contact portion is configured to be wound in a first direction from one end portion of the rotating shaft toward the first point of the rotating shaft, and the contact portion is configured from the first point of the rotating shaft to the other end of the rotating shaft. And is wound in a second direction opposite to the first direction toward the end of the
The recording apparatus is configured to rotate in a direction in which the bubbles move from the first point to both ends of the rotation shaft. A method of cleaning the transport belt in a recording apparatus, comprising: a transport belt for transporting a recording medium; and a cleaning section for the transport belt having a spiral brush in which a hair-like contact portion is provided spirally with respect to a rotation axis. Because
A method for cleaning a conveyor belt, wherein the conveyor belt is intermittently driven, and a stop time in the intermittent drive is equal to or longer than a rotation period of the spiral brush. In the cleaning method of the conveyance belt according to claim 10,
The conveyance belt cleaning method, wherein the stop time is adjusted so that the stop time in the intermittent driving is equal to or greater than a rotation period of the rotating brush. In the cleaning method of the conveyance belt according to claim 10 or 11,
A conveyor belt cleaning method, wherein the rotational speed of the spiral brush is adjusted so that a stop time in the intermittent drive is equal to or greater than a rotation period of the rotary brush. In the cleaning method of the conveyance belt according to any one of claims 10 to 12,
The recording apparatus includes a recording unit capable of ejecting ink onto the recording medium conveyed by the conveyance belt,
According to the type of ink, the stop time is adjusted or the rotational speed of the spiral brush is adjusted so that the stop time in the intermittent drive is equal to or greater than the rotation period of the rotary brush. Method.

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