JP6274399B2 - Recording device - Google Patents

Description

  The present invention relates to a recording apparatus including a transport mechanism that transports a recording medium placed on a movable belt.

2. Description of the Related Art Conventionally, a recording apparatus including a transport mechanism that transports a recording medium placed on a movable belt has been used. Among such recording apparatuses, a recording apparatus including an adhesive belt coated with an adhesive that releasably adheres and holds the recording medium to the mounting surface of the recording medium is disclosed as a movable belt. Yes.
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.

  Further, in a recording apparatus provided with such an adhesive belt, a pressure unit such as a pressure roller is provided in order to attach a recording medium to the adhesive belt without causing wrinkles or floats. It is common.

JP 11-192694 A

In a recording apparatus that records by ejecting ink by reciprocally scanning the recording head in a direction that intersects the transport direction of the recording medium, it is necessary to transport the recording medium corresponding to the reciprocating scanning of the recording head. The recording medium is transported intermittently.
However, in a recording apparatus having such a configuration and provided with a pressurizing unit such as a pressure roller, the recording medium is transported intermittently, and the recording medium is subjected to an application by the pressurizing unit. A part with a long pressure time (a part that is pressurized from the pressure part when stopped) and a part with a short pressure time by the pressure part (a part that is pressurized from the pressure part only in the moving state) are generated. It was. For this reason, in the portion where the pressing time by the pressing portion is long, the thickness of the recording medium is thinner than the portion where the pressing time is short, and the thickness of the recording medium may be uneven on the adhesive belt. there were. In some cases, color unevenness also occurs in a recorded image formed on the recording medium due to thickness unevenness of the recording medium. Such color unevenness of the recorded image is particularly noticeable on the opposite side of the recording surface of the fabric when the fabric is used as the recording medium, but it may be clearly recognized on the recording surface.
Note that the recording apparatus of Patent Document 1 has no description on suppressing color unevenness of a recorded image by suppressing thickness unevenness of a recording medium.

  Accordingly, an object of the present invention is to suppress color unevenness of a recorded image by suppressing thickness unevenness of the recording medium that occurs when the recording medium is pressurized and attached to an adhesive belt.

  A recording apparatus according to a first aspect of the present invention for solving the above-described problem includes an adhesive belt on which a recording medium is placed, a transport mechanism capable of intermittently transporting the recording medium, and the recording medium And a recording mechanism that performs recording on the recording medium, and the pressing unit transports the recording medium at a contact portion with the recording medium. The length in the direction is equal to or longer than the transport distance of the recording medium in one intermittent transport accompanying recording on the recording medium.

  Here, “the transport distance of the recording medium in one intermittent transport accompanying recording on the recording medium” has the following meaning. In a recording apparatus that performs recording by reciprocally scanning a recording head in a scanning direction that intersects the conveyance direction of the recording medium, the conveyance mechanism stops conveyance of the recording medium during recording scanning (while the recording head is moving). In other words, during recording, reciprocal scanning of the recording head and conveyance of the recording medium are performed alternately. Here, it means the conveyance distance per time in the conveyance of the recording medium performed alternately.

According to this aspect, the length in the conveyance direction at the contact portion with the recording medium is equal to or longer than the conveyance distance of the recording medium per conveyance conveyed corresponding to the reciprocating scanning of the recording head. . For this reason, when the recording medium is intermittently conveyed at the time of recording, the recording medium is pressurized from the pressure unit in a state in which any part is stopped in the conveyance direction. In other words, there is no portion that is pressurized from the pressure unit only in the moving state.
For this reason, any part of the recording medium in the transport direction is subjected to a pressing force of a certain level or more, and the occurrence of uneven thickness of the recording medium can be suppressed. it can.

  The recording apparatus according to a second aspect of the present invention is the recording apparatus according to the first aspect, wherein the pressurizing unit determines the length in the transport direction at the contact portion with the recording medium in the one-time intermittent transport. It is variable according to the conveyance distance of the recording medium.

According to this aspect, the pressurizing unit can change the length in the transport direction at the contact portion with the recording medium in accordance with the transport distance of the recording medium in the one-time intermittent transport. For this reason, in the recording apparatus capable of changing the conveyance distance of the recording medium in the one-time intermittent conveyance, the conveyance failure of the recording medium that may occur due to contact between the pressure unit and the adhesive belt, and Further, it is possible to suppress damage to the recording medium, the adhesive belt, and the pressure unit.
As a specific configuration for making the length of the contact portion in the transport direction variable, for example, a member constituting the contact portion in the pressurizing portion is detachable in the transport direction or is in contact with a recording medium. A configuration in which a plurality of the members are provided so as to be movable to a position where they are not to be moved, and a configuration in which the user can attach or detach or move all or a part of the members in accordance with the transport distance of the recording medium in the one-time intermittent transport. .

  The recording apparatus according to a third aspect of the present invention is the recording apparatus according to the first or second aspect, wherein the pressurizing unit has a length in the scanning direction at a contact portion with the recording medium. It is more than the length of the scanning direction.

  According to this aspect, the entire recording medium can be pressurized in the scanning direction that intersects the transport direction. That is, since the recording medium can be pressurized with a wide contact surface, the occurrence of uneven thickness of the recording medium can be suppressed, and the uneven color of the recorded image can be suppressed.

  The recording apparatus according to a fourth aspect of the present invention is the recording apparatus according to the third aspect, wherein the pressurizing unit has a length in the scanning direction at a contact portion with the recording medium, and the scanning direction in the recording medium. It is characterized by being variable according to the width.

According to this aspect, the length of the contact portion in the scanning direction is variable according to the length of the recording medium in the scanning direction. For this reason, it is possible to suppress the conveyance failure of the recording medium that may be caused by the contact between the pressure unit and the adhesive belt, and damage to the recording medium, the adhesive belt, and the pressure unit. it can.
As a specific configuration for changing the length of the contact portion in the scanning direction, for example, a member constituting the contact portion in the pressurizing portion can be attached / detached in the scanning direction or contacted with a recording medium. For example, there may be a configuration in which a plurality of members are provided so as to be movable to a position where they are not to be moved, and a user can attach or detach or move all or part of the members depending on the recording medium to be used.

  In the recording apparatus according to a fifth aspect of the present invention, in any one of the first to fourth aspects, the pressurizing portion is chamfered on the upstream side in the transport direction at the contact portion with the recording medium. It is characterized by that.

  According to this aspect, the conveyance direction upstream side in the contact portion is chamfered. For this reason, when the recording medium is transported, the contact portion and the recording medium interfere with each other to prevent the recording medium from being transported and to damage at least one of the both. be able to.

  A recording apparatus according to a sixth aspect of the present invention is the recording apparatus according to any one of the first to fifth aspects, further comprising a moving mechanism of the pressure unit that moves the pressure unit so as to be able to contact and separate from the adhesive belt. It is characterized by providing.

  According to this aspect, when the recording medium is placed on the adhesive belt, the pressure unit is once separated from the adhesive belt, and the leading end of the recording medium is placed on the adhesive belt. Then, the recording medium can be pressurized by bringing the pressure unit close to the adhesive belt. For this reason, the operativity at the time of mounting the said recording medium on the said adhesive belt improves.

1 is a schematic side view illustrating a recording apparatus according to a first embodiment of the invention. 1 is a schematic plan view illustrating a recording apparatus according to a first embodiment of the invention. FIG. 6 is a schematic side view illustrating a recording apparatus according to a second embodiment of the invention. FIG. 6 is a schematic plan view illustrating a recording apparatus according to a second embodiment of the invention. FIG. 6 is a schematic plan view illustrating a recording apparatus according to a third embodiment of the invention. FIG. 9 is a schematic plan view illustrating a recording apparatus according to a fourth embodiment of the invention.

[Example 1] (FIGS. 1-2)
Hereinafter, a recording apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
First, the recording apparatus according to the first embodiment of the invention will be described.
FIG. 1 is a schematic side view of a recording apparatus 1 according to a first embodiment of the invention.

  The recording apparatus 1 of the present embodiment includes a set unit 2 that can send out a roll R1 of a recording medium P for recording. Further, a pressure unit 12 that presses and attaches the recording medium P to the adhesive belt 10 as a movable belt and a conveyance mechanism 3 that conveys the recording medium P in the conveyance direction A by the adhesive belt 10 are provided. Yes. In addition, a recording mechanism 4 is provided that records the recording head 7 by reciprocating scanning in a scanning direction B that intersects the conveyance direction A of the recording medium P. Further, a cleaning mechanism 15 for the adhesive belt 10 is provided. Furthermore, a winding mechanism 18 having a winding shaft 17 for winding the recording medium P and a cutter 16 for cutting the recording medium P being wound is provided.

  The set unit 2 includes a rotating shaft 5 that also serves as a setting position of the roll R1 of the recording medium P for recording, and conveys the recording medium P from the roll R1 set on the rotating shaft 5 via the driven roller 6. The structure can be sent to the mechanism 3. When the recording medium P is sent out to the transport mechanism 3, the rotating shaft 5 rotates in the rotation direction C.

  The transport mechanism 3 includes an adhesive belt 10 on which the recording medium P sent out from the setting unit 2 is placed and transported, a transport roller 8 that moves the adhesive belt 10, and a driven roller 9. The recording medium P is pressed and attached to the adhesive belt 10 by the pressing unit 12 and placed. When the recording medium P is transported, the transport roller 8 rotates in the rotation direction C.

  Here, the pressure unit 12 is chamfered on the upstream side and the downstream side in the transport direction A at the contact portion with the recording medium P. For this reason, when the recording medium P is transported, the contact portion and the recording medium P interfere with each other to prevent a transport failure of the recording medium P and damage to at least one of the both. can do.

  Further, the pressing unit 12 can be moved to and away from the adhesive belt 10 by a moving mechanism of the pressing unit 12 (not shown). For this reason, when the recording medium P is placed on the adhesive belt 10, the pressure unit 12 is once separated from the adhesive belt 10, and the tip of the recording medium P is placed on the adhesive belt 10 before being added. The recording medium P can be pressurized by bringing the pressure section 12 close to the adhesive belt 10. That is, the operability when the recording medium P is placed on the adhesive belt 10 is good.

The recording mechanism 4 includes a recording head 7, a carriage (not shown) on which the recording head 7 is mounted, and a carriage motor (not shown) that reciprocates the carriage in the scanning direction B. In FIG. 1, the scanning direction B is a direction perpendicular to the paper surface.
During recording, recording is performed by reciprocating the recording head 7. During the recording scanning (when the recording head is moving), the transport mechanism 3 stops the transport of the recording medium P. In other words, during recording, the reciprocating scanning of the recording head 7 and the conveyance of the recording medium P are alternately performed. That is, during recording, the conveyance mechanism 3 intermittently conveys the recording medium P corresponding to the reciprocating scanning of the recording head 7.

  The cleaning mechanism 15 of the adhesive belt 10 includes a cleaning unit 13 configured by connecting a plurality of cleaning rollers in the rotation axis direction, and a tray 14 containing a cleaning agent as a cleaning mechanism of the cleaning unit 13.

  The winding mechanism 18 is a mechanism that winds the recording medium P on which recording has been performed and is transported from the transport mechanism 3 via the driven roller 11. A winding paper tube or the like is set on the winding shaft 17. By winding the recording medium P around this, the recording medium P can be wound as a roll R2.

In the recording apparatus 1 of the present embodiment, the pressurizing unit 12 has a length L1 in the transport direction A at the contact portion with the recording medium P per transporting time corresponding to the reciprocating scanning of the recording head 7. It is not less than the transport distance A1 of the recording medium P. That is, the pressurizing unit 12 is configured to be able to suppress the occurrence of uneven thickness of the recording medium P depending on the pressurizing time for the recording medium P accompanying intermittent conveyance of the recording medium P.
In addition, although the pressurization part 20 of a present Example is comprised by one member, for example,

By arranging a plurality of members in the transport direction A, the length L1 in the transport direction A at the contact portion with the recording medium P may be a transport distance A1 or more.

FIG. 2 is a schematic plan view showing the recording apparatus 1 of the present embodiment.
In the recording apparatus 1 of the present embodiment, the pressure unit 12 has a length L2 in the scanning direction B at a contact portion with the recording medium P that is equal to or longer than a length L3 in the scanning direction B on the recording medium P. For this reason, the entire recording medium P can be pressurized in the scanning direction B. That is, since the pressurizing unit 12 can pressurize the recording medium P with a wide contact surface, the thickness unevenness of the recording medium P can be suppressed, and the color unevenness of the recorded image can be suppressed. Yes.

[Example 2] (FIGS. 3 to 4)
Next, a recording apparatus according to the second embodiment of the invention will be described.
FIG. 3 is a schematic side view showing a recording apparatus according to the second embodiment of the present invention, and FIG. 4 is a schematic plan view showing the recording apparatus according to the second embodiment of the present invention. 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 different from the recording apparatus 1 according to the first embodiment in that the pressurizing unit includes two members, that is, a contact member 19 with the recording medium P and a weight 20.
Incidentally, the contact member 19 with the recording medium P of the present embodiment is chamfered on the upstream side and the downstream side in the transport direction A, similarly to the pressurizing unit 12 of the first embodiment. In addition, the pressurizing unit composed of the contact member 19 and the weight 20 with the recording medium P can be moved to and away from the adhesive belt 10 by a moving mechanism of the pressurizing unit (not shown). ing. Further, the contact member 19 with the recording medium P has a length L1 in the conveyance direction A at the contact portion with the recording medium P corresponding to the recording medium 7 that is conveyed in correspondence with the reciprocating scanning of the recording head 7. It is the transport distance A1 or more of the recording medium P. Further, in the contact member 19 with the recording medium P, the length L2 in the scanning direction B at the contact portion with the recording medium P is equal to or longer than the length L3 in the scanning direction B on the recording medium P.
For this reason, the recording apparatus 1 of the present embodiment is configured to be able to suppress the occurrence of uneven thickness of the recording medium P and to suppress the uneven color of the recorded image for the same reason as the recording apparatus 1 of the first embodiment. ing.

Example 3 (FIG. 5)
Next, a recording apparatus according to the third embodiment of the invention will be described.
FIG. 5 is a schematic plan view showing a recording apparatus according to Embodiment 3 of the present invention. 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 configured such that the pressure unit can change the length in the scanning direction B at the contact portion with the recording medium P in accordance with the length in the scanning direction B on the recording medium P. This is different from the recording apparatus 1 of the first embodiment.
In the recording apparatus 1 according to the present embodiment, the pressurizing unit includes pressurizing units 21a to 21f that also serve as a contact unit. Each of the pressurizing units 21a to 21f is configured to be removable with respect to a base axis in a scanning direction B (not shown) or movable to a position not in contact with the recording medium P, and the scanning direction in the recording medium P to be used. Depending on the length of B, the length of the contact portion in the scanning direction B can be varied.
Further, the pressurizing units 21a to 21f have a moving mechanism (not shown) that can move in the scanning direction B.
For this reason, the conveyance failure of the recording medium P that may be caused by the contact between the pressure units 21a to 21f and the adhesive belt 10, and the recording medium P, the adhesive belt 10, and the pressure units 21a to 21f are damaged. It is the structure which can suppress giving.

In addition, the pressurization parts 21a-21f of a present Example chamfer the upstream and downstream of the conveyance direction A similarly to the pressurization part 12 of Example 1. FIG. Moreover, it has the structure which can move the pressurization parts 21a-21f to the adhesive belt 10 so that contact / separation is possible by the moving mechanism of a pressurization part not shown. In addition, the pressurizing units 21 a to 21 f have the length L1 in the transport direction A at the contact portion with the recording medium P, and the recording medium P per time transported corresponding to the reciprocating scanning of the recording head 7. It is more than the conveyance distance A1. Furthermore, in the pressure units 21a to 21f, the length L2 in the scanning direction B at the contact portion with the recording medium P is equal to or longer than the length L3 in the scanning direction B on the recording medium P.
For this reason, the recording apparatus 1 of the present embodiment is configured to be able to suppress the occurrence of uneven thickness of the recording medium P and to suppress the uneven color of the recorded image for the same reason as the recording apparatus 1 of the first embodiment. ing.

Example 4 (FIG. 6)
Next, a recording apparatus according to the fourth embodiment of the invention will be described.
FIG. 6 is a schematic plan view showing a recording apparatus according to Embodiment 4 of the present invention. 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 of the present embodiment has a plurality of recording modes, and the conveyance distance of the recording medium in one intermittent conveyance corresponds to the conveyance distances A1 to A3 corresponding to the plurality of recording modes. You can record differently. In addition, the pressurization unit is configured such that the length in the conveyance direction A at the contact portion with the recording medium P is variable according to the conveyance distance of the recording medium in one intermittent conveyance. This is different from the recording apparatus 1 of Example 1.
In the recording apparatus 1 according to the present embodiment, the pressurizing unit includes pressurizing units 21g to 21i that also serve as a contact unit. Each of the pressurizing units 21g to 21i is configured to be removable with respect to a base axis in a conveyance direction A (not shown) or movable to a position not in contact with the recording medium P, and the recording target in one intermittent conveyance. The length in the transport direction A at the contact portion can be changed according to the transport distances A1 to A3 of the medium. Specifically, when the conveyance distance of the recording medium in one intermittent conveyance is the conveyance distance A1, the length L1 in the conveyance direction A can be set by the pressure unit 21g. In addition, when the transport distance of the recording medium in one intermittent transport is the transport distance A2, the length L2 in the transport direction A can be set by the pressurizing unit 21g and the pressurizing unit 21h. When the transport distance of the recording medium in one intermittent transport is the transport distance A3, the length L3 in the transport direction A can be set by the pressurizing unit 21g, the pressurizing unit 21h, and the pressurizing unit 21i. .
The pressurizing units 21g to 21i have a moving mechanism (not shown) that can move in the transport direction A.
For this reason, the conveyance failure of the recording medium P that may be caused by the contact between the pressurizing units 21g to 21i and the adhesive belt 10, and the recording medium P, the adhesive belt 10, and the pressurizing units 21g to 21i are damaged. It is the structure which can suppress giving.

In addition, the pressurization parts 21g-21i of a present Example chamfer the upstream and downstream of the conveyance direction A similarly to the pressurization part 12 of Example 1. FIG. Moreover, it has the structure which can move the pressurization parts 21g-21i to the adhesive belt 10 so that contact / separation is possible by the moving mechanism of a pressurization part not shown. Furthermore, in the pressure units 21g to 21i, the length L2 in the scanning direction B at the contact portion with the recording medium P is equal to or longer than the length L3 in the scanning direction B on the recording medium P.
For this reason, the recording apparatus 1 of the present embodiment is configured to be able to suppress the occurrence of uneven thickness of the recording medium P and to suppress the uneven color of the recorded image for the same reason as the recording apparatus 1 of the first embodiment. ing.

1 recording device, 2 set section, 3 transport mechanism, 4 recording mechanism,
5 Rotating shaft of set unit 2, 6 driven roller, 7 recording head, 8 transport roller,
9 driven roller, 10 adhesive belt, 11 driven roller, 12 pressure unit,
13 cleaning units, 14 trays, 15 cleaning mechanisms, 16 cutters,
17 winding shaft, 18 winding mechanism, 19 contact member with recording medium P, 20 spindle,
21a to 21i Pressure unit, P Recording medium

Claims (6)

A transport mechanism having an adhesive belt for placing a recording medium, and capable of intermittently transporting the recording medium;
A pressure unit for attaching the recording medium to the adhesive belt;
A recording mechanism for recording on the recording medium,
In the pressurizing unit, the length in the conveyance direction of the recording medium at the contact portion with the recording medium is equal to or longer than the conveyance distance of the recording medium in one intermittent conveyance accompanying recording on the recording medium. A recording apparatus characterized by the above. The recording apparatus according to claim 1,
The pressurizing unit can vary the length in the transport direction at the contact portion with the recording medium in accordance with the transport distance of the recording medium in the one-time intermittent transport. . The recording apparatus according to claim 1 or 2,
The recording mechanism performs recording by causing the recording head to reciprocate in a scanning direction that intersects the conveyance direction of the recording medium,
The recording apparatus, wherein the pressurizing unit has a length in the scanning direction at a contact portion with the recording medium that is equal to or longer than a length in the scanning direction of the recording medium. The recording apparatus according to claim 3,
The recording apparatus according to claim 1, wherein the pressurizing unit has a variable length in the scanning direction at a contact portion with the recording medium in accordance with the scanning direction length of the recording medium. The recording apparatus according to any one of claims 1 to 4,
The recording apparatus according to claim 1, wherein the pressurizing unit is chamfered on the upstream side in the transport direction at a contact portion with the recording medium. The recording apparatus according to any one of claims 1 to 5,
A recording apparatus comprising: a mechanism for moving the pressurizing unit that moves the pressurizing unit to and from the adhesive belt.

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