IP Library › Granted Patent US 10,625,501
Granted Patent B2
US 10,625,501 · App. 15/991,778 · Granted Apr 21, 2020

Recording apparatus

Inventors: Hikari Shomura (Inzai, JP); Kazunori Mori (Matsumoto, JP)
Assignee: Seiko Epson Corporation
B41J2/04573B41J2/04556B41J2/155B41J2/2132B41J11/0045B41J13/02
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Quick Facts
Patent No.
US 10,625,501
App. No.
15/991,778
Granted
Apr 21, 2020
Kind
B2
Abstract

When a wave shape is formed in a sheet of paper, a suppression of a reduction in recording quality that is caused by a shape of the paper is achieved, and thus, favorable recording quality is obtained.

Claims (48)

1. A recording apparatus comprising:

a liquid discharge unit which is provided with a plurality of liquid discharging nozzles which discharge a liquid onto a medium which is transported;

an upstream-side transport unit which is provided on an upstream side of the liquid discharge unit in a medium transport direction;

a downstream-side transport unit which is provided on a downstream side of the liquid discharge unit in the medium transport direction; and

a forming unit which is provided on the upstream side of the liquid discharge unit and the upstream-side transport unit in the medium transport direction and forms in the medium, alternately in a width direction which intersects the medium transport direction, first convex portions which extend along the medium transport direction and are convex in one surface of the medium and second convex portions which extend along the medium transport direction and are convex in another surface of the medium,

wherein the upstream-side transport unit is a transport roller pair, and a plurality of the transport roller pairs which nip and transport the medium are disposed along the width direction,

wherein the transport roller pairs nip either the first convex portions or the second convex portions which are formed in the medium, and

wherein a control unit which controls discharging of the liquid of the liquid discharging nozzles controls the discharging of the liquid of the liquid discharging nozzles according to shapes of the first convex portions and the second convex portions which are formed in the medium between the upstream-side transport unit and the downstream-side transport unit.

2. The recording apparatus according to claim 1 ,

wherein the control unit controls the discharging of the liquid of the liquid discharging nozzles according to a contact state of the medium with respect to the upstream-side transport unit or the downstream-side transport unit.

3. The recording apparatus according to claim 1 ,

wherein the control unit controls the discharging of the liquid of the liquid discharging nozzles according to a contact state of the medium with respect to the forming unit.

4. The recording apparatus according to claim 1 ,

wherein the control unit ensures that a discharge amount of the liquid with respect to positions between the first convex portions and the second convex portions is greater than a discharge amount of the liquid with respect to the first convex portions and the second convex portions.

5. The recording apparatus according to claim 1 ,

wherein when forming a plurality of dots on the medium using the discharging of the liquid along the width direction, the control unit thins the liquid discharging nozzles to be used during dot formation onto the first convex portions and the second convex portions.

6. The recording apparatus according to claim 1 ,

wherein the control unit contracts a size of a recording region in the width direction based on recording data corresponding to a width of the medium which is contracted by the forming unit.

7. The recording apparatus according to claim 1 ,

wherein when performing recording on a second surface which is a surface of an opposite side to a first surface of the medium on which recording is first performed, the control unit controls the discharging of the liquid of the liquid discharging nozzles according to a discharge amount of the liquid onto the first surface.

8. The recording apparatus according to claim 1 ,

wherein the control unit controls the discharging of the liquid of the liquid discharging nozzles according to a state corresponding to any one of

a first state in which the medium is in contact with the forming unit and the upstream-side transport unit and a leading end of the medium does not reach the downstream-side transport unit,

a second state in which the medium is in contact with the forming unit, the upstream-side transport unit, and the downstream-side transport unit,

a third state in which a rear end of the medium leaves the forming unit and the medium is in contact with the upstream-side transport unit and the downstream-side transport unit, and

a fourth state in which the rear end of the medium leaves the upstream-side transport unit and the medium is in contact with the downstream-side transport unit.

9. The recording apparatus according to claim 8 ,

wherein the liquid discharge unit is provided with a plurality of nozzle rows along the width direction, where a plurality of the liquid discharging nozzles are arranged along the medium transport direction in each nozzle row,

wherein in the first state and the second state, the control unit uses the liquid discharging nozzles closer to an outside in the width direction going toward the downstream side in the medium transport direction of the liquid discharging nozzles to be used during predetermined dot formation,

wherein in the third state, the control unit uses the liquid discharging nozzles which have a same position in the width direction of the liquid discharging nozzles to be used during the predetermined dot formation, and

wherein in the fourth state, the control unit uses the liquid discharging nozzles closer to an inside in the width direction going toward the downstream side in the medium transport direction of the liquid discharging nozzles to be used during predetermined dot formation.

10. The recording apparatus according to claim 1 ,

wherein the forming unit includes the upstream-side forming unit which is provided on the upstream side of the upstream-side transport unit in the medium transport direction and a downstream-side forming unit which is provided between the liquid discharge unit and the downstream-side transport unit in the medium transport direction, and

wherein the control unit controls the discharging of the liquid of the liquid discharging nozzles according to a state corresponding to any one of

a first state in which the medium is in contact with the upstream-side forming unit and the upstream-side transport unit and the leading end of the medium does not reach the downstream-side forming unit,

a second state in which the medium is in contact with the upstream-side forming unit, the upstream-side transport unit, and the downstream-side forming unit,

a third state in which the medium is in contact with the upstream-side forming unit, the upstream-side transport unit, the downstream-side forming unit, and the downstream-side transport unit,

a fourth state in which the rear end of the medium leaves the upstream-side forming unit and the medium is in contact with the upstream-side transport unit, the downstream-side forming unit, and the downstream-side transport unit, and

a fifth state in which the rear end of the medium leaves the upstream-side transport unit and the medium is in contact with the downstream-side forming unit and the downstream-side transport unit.

11. The recording apparatus according to claim 10 ,

wherein the liquid discharge unit is provided with a plurality of nozzle rows along the width direction, where a plurality of the liquid discharging nozzles are arranged along the medium transport direction in each nozzle row,

wherein in the first state, the control unit uses the liquid discharging nozzles closer to an outside in the width direction going toward the downstream side in the medium transport direction of the liquid discharging nozzles to be used during predetermined dot formation,

wherein in the second state and the third state, the control unit uses the liquid discharging nozzles which have a same position in the width direction of the liquid discharging nozzles to be used during the predetermined dot formation, and

wherein in the fourth state and the fifth state, the control unit uses the liquid discharging nozzles closer to an inside in the width direction going toward the downstream side in the medium transport direction of the liquid discharging nozzles to be used during predetermined dot formation.

12. The recording apparatus according to claim 1 ,

wherein the downstream-side transport unit is output roller pairs which nip and transport the medium and is formed by nipping portions which nip one of the first convex portions and the second convex portions and escape portions which allow the other to escape being disposed alternately along the width direction when nipping the medium.

13. The recording apparatus according to claim 12 ,

wherein the nipping portions in the transport roller pairs and the nipping portions in the output roller pairs are disposed at corresponding positions in the width direction.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 29, 2018
From: SHOMURA, HIKARI; MORI, KAZUNORI
To: SEIKO EPSON CORPORATION
Reel/Frame 045925/0324 →
Priority Claims (1)
JP 2017-108352 · May 31, 2017 · national
Continuity (1)
Related Publication 20180345692A1 · Dec 6, 2018