Liquid ejecting apparatus and method of forming adjustment pattern

Patent metadata

Field	Value
Publication number	US-10214012-B2
Application number	US-201815873628-A
Country	US
Kind code	B2
Filing date	Jan 17, 2018
Priority date	Jan 18, 2017
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

A liquid ejecting apparatus includes a head unit that ejects ink onto a medium, a transport unit that transports the medium, and a control unit that forms an adjustment pattern on the medium, and the control unit forms, as the adjustment pattern, a pattern including a first pattern that is formed in a transport direction, a plurality of scales that are formed in the transport direction, and a second pattern that is formed at a position corresponding to the scales in the transport direction while the position thereof in a main-scanning direction that intersects the transport direction is changed.

First claim

What is claimed is:

1. A liquid ejecting apparatus comprising:
an ejecting unit that ejects liquid onto a medium;
a transport unit that transports the medium; and
a control unit that forms an adjustment pattern on the medium,
wherein the control unit forms, as the adjustment pattern, a pattern including a first pattern that is formed in a first direction, a plurality of scales that are formed in the first direction, and a second pattern that is formed at a position corresponding to the scales in the first direction while changing the position thereof in a second direction that intersects the first direction.

2. The liquid ejecting apparatus according to claim 1 ,
wherein the control unit forms, as the second pattern, a continuous line that intersects the first pattern.

3. The liquid ejecting apparatus according to claim 1 ,
wherein the control unit forms, as the second pattern, a plurality of lines in the first direction while changing positions thereof in the first direction and the second direction.

4. The liquid ejecting apparatus according to claim 1 ,
wherein the adjustment pattern is configured such that an adjustment value is able to be acquired from one pair of the first pattern and the second pattern.

5. The liquid ejecting apparatus according to claim 1 ,
wherein the ejecting unit is configured to eject the liquid while moving in the second direction, and
wherein the control unit forms, as the adjustment pattern, a pattern for adjusting ejection timing of the liquid by the ejecting unit.

6. The liquid ejecting apparatus according to claim 1 ,
wherein the ejecting unit includes at least a first head and a second head, and
wherein the control unit forms, as the adjustment pattern, a first adjustment pattern for adjusting ejection timing of the liquid from the first head and a second adjustment pattern for adjusting ejection timing of the liquid from the second head.

7. The liquid ejecting apparatus according to claim 1 ,
wherein the transport unit transports the medium in the second direction, and
wherein the control unit forms, as the adjustment pattern, a pattern for adjusting the amount of transport of the medium.

8. A method of forming an adjustment pattern by a liquid ejecting apparatus that includes an ejecting unit that ejects liquid onto a medium and a transport unit that transports the medium, the method comprising:
forming, as an adjustment pattern, a pattern including a first pattern that is formed in a first direction, a plurality of scales that are formed in the first direction, and a second pattern that is formed at a position corresponding to the scales in the first direction while changing the position thereof in a second direction that intersects the first direction.

Assignees

• Seiko Epson Corp

Inventors

• HOCHI Hiroya

Classifications

• B41J2029/3935

  by means of printed test patterns · CPC title

• B41J2/13 Primary

  for inclination of printed pattern · CPC title

• B41J19/145

  Dot misalignment correction · CPC title

• B41J29/393

  Devices for controlling or analysing the entire machine {; Controlling or analysing mechanical parameters involving printing of test patterns} · CPC title

• B41J2/145

  Arrangement thereof · CPC title