Recording apparatus and recording method

Patent metadata

Field	Value
Publication number	US-9855774-B2
Application number	US-201615226797-A
Country	US
Kind code	B2
Filing date	Aug 2, 2016
Priority date	Aug 7, 2015
Publication date	Jan 2, 2018
Grant date	Jan 2, 2018

Abstract

A recording apparatus includes a recording head including a plurality of recording elements arranged in a predetermined direction, and a determination unit configured to determine a first mode in which a specified image is recorded or a second mode in which a pattern is recorded in each of recording scannings in forward and backward directions to form an adjustment pattern for adjusting a recording position in the intersecting direction of the recording head, and the recording position of the recording head in accordance with the formed adjustment pattern is adjusted, in which a driving unit controls driving of the recording elements in a manner that a correspondence relationship between positions in the predetermined direction and the intersecting direction among a plurality of dots that form the same column is varied or is the same in the recording scannings in the forward and backward directions in accordance with the determined mode.

First claim

What is claimed is:

1. A recording apparatus comprising:
a recording head including a plurality of recording elements configured to eject ink which are arranged in a predetermined direction, the recording elements being arranged into a plurality of groups each of which is constituted by a plurality of predetermined adjacent recording elements;
a scanning unit configured to execute a recording scanning in a forward direction and a recording scanning in a backward direction along an intersecting direction that intersects with the predetermined direction with respect to a unit area including a pixel area equivalent to a plurality of pixels on a recording medium by the recording head;
a driving unit configured to drive each of the plurality of predetermined adjacent recording elements in order at different timings in the recording scanning in the forward direction and the recording scanning in the backward direction; and
a determination unit configured to determine a first mode in which an image specified by a user is recorded by the recording scanning in the forward direction and the recording scanning in the backward direction by the scanning unit or a second mode in which a pattern is recorded in each of the recording scanning in the forward direction and the recording scanning in the backward direction by the scanning unit so as to form an adjustment pattern for adjusting a recording position in the intersecting direction of the recording head, wherein a relative position of a recording position by the recording scanning in the forward direction and a recording position by the recording scanning in the backward direction in the first mode is adjusted in accordance with information relating to the formed adjustment pattern,
wherein the driving unit is arranged to drive the plurality of predetermined adjacent recording elements in a manner that, in a case where the determination unit determines the first mode, the plurality of predetermined adjacent recording elements are driven in a first order in the recording scanning in the forward direction and the plurality of predetermined adjacent recording elements are driven in an order that is different from an inverted order of the first order in the recording scanning in the backward direction, and in a case where the determination unit determines the second mode, the plurality of predetermined adjacent recording elements are driven in a second order in the recording scanning in the forward direction and the plurality of predetermined adjacent recording elements are driven in an inverted order of the second order in the recording scanning in the backward direction.

2. The recording apparatus according to claim 1 , wherein in the second mode the driving unit is operated such that a plurality of the adjustment patterns are formed in which among the plurality of the adjustment patterns, relative positions of the pattern recorded by the recording scanning in the forward direction and the pattern recorded by the recording scanning in the backward direction in the intersecting direction are mutually different.

3. The recording apparatus according to claim 1 , further comprising a generation unit configured to generate recording data used for the recording scannings in a manner that,
in the first mode and in a case where maximum one recording is permitted in each pixel area in the unit area, a number of pixels adjacent in the intersecting direction to the pixel area of the unit area where the recording is permitted in the recording scanning in the backward direction in the pixel area of the unit area where the recording is permitted in the recording scanning in the forward direction is higher than a number of pixels adjacent in the intersecting direction to the pixel area of the unit area where the recording is permitted in the recording scanning in the backward direction.

4. The recording apparatus according to claim 1 , the driving unit is arranged to drive the plurality of predetermined adjacent recording elements in a manner that, in a case where the determination unit determines the first mode, the plurality of predetermined adjacent recording elements are driven in the first order in the recording scanning in the forward direction and the plurality of predetermined adjacent recording elements are driven in an order that is different from an inverted order of the first order and an order having offset relationship for the inverted order of the first order in the recording scanning in the backward direction.

5. The recording apparatus according to claim 1 , further comprising a sensor configured to read the formed adjustment pattern, and the information relating to the formed adjustment pattern is based on the reading result by the sensor.

6. The recording apparatus according to claim 1 , the information relating to the formed adjustment pattern is based on input by user.

7. A recording method comprising:
executing, by using a recording head including a plurality of recording elements configured to eject ink which are arranged in a predetermined direction, a recording scanning in a forward direction and a recording scanning in a backward direction along an intersecting direction that intersects with the predetermined direction with respect to a unit area including a pixel area equivalent to a plurality of pixels on a recording medium; and
driving, with regard to each of a plurality of groups constituted by a plurality of predetermined adjacent recording elements among the plurality of recording elements of the recording head used for the recording of the unit area, each of the plurality of predetermined adjacent recording elements in order at different timings in the recording scanning in the forward direction and the recording scanning in the backward direction,
wherein the plurality of predetermined adjacent recording elements are driven in a manner that, in a case where an image specified by a user is recorded by the recording scanning in the forward direction and the recording scanning in the backward direction, the plurality of predetermined adjacent recording elements are driven in an first order in the recording scanning in the forward direction and the plurality of predetermined adjacent recording elements are driven in an order that is different from an inverted order of the first order in the recording scanning in the backward direction, and in a case where a pattern is recorded in each of the recording scanning in the forward direction and the recording scanning in the backward direction to form an adjustment pattern for adjusting a recording position in the intersecting direction of the recording head, wherein a relative position of a recording position by recording scanning in the forward direction and a recording position by the recording scanning in the backward direction in the first mode is adjusted in accordance with information relating to the formed adjustment pattern, the plurality of predetermined adjacent recording elements are driven in a second order in the recording scanning in the forward direction and the plurality of predetermined adjacent recording elements are driven in an inverted order of the second order in the recording scanning in the backward direction.

8. The recording method according to claim 7 , wherein among the plurality of the adjustment patterns, relative positions of the pattern recorded by the recording scanning in the forward direction and the pattern recorded by the recording scanning in the backward direction in the intersecting direction are mutually different.

9. The recording method according to claim 7 , further comprising generating recording data used for the recording scannings for recording an image specified by a user in a manner that, in a case where

Assignees

• Canon Kk

Inventors

• Seki Satoshi
• Takahashi Kiichiro
• Tanaka Hirokazu
• Suzuki Fumiko
• Sasaki Gou
• Yamagata Mayuko
• Doi Tsukasa

Classifications

• B41J2/2132

  Print quality control characterised by dot disposition, e.g. for reducing white stripes or banding (methods for local corrections by dot omission, image edge enhancement, or multi-pass mask selection G06K15/102; colour conversion H04N1/40) · CPC title

• B41J29/393

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

• B41J2/04573

  Timing; Delays · CPC title

• B41J25/001 Primary

  Mechanisms for bodily moving print heads or carriages parallel to the paper surface · CPC title

• B41J2/04505 Primary

  aiming at correcting alignment · CPC title