DETERMINING ADJUSTMENT VALUE FOR RECORDING POSITION DEVIATION AT PRINTING USING A PLURALITY OF KINDS OF INSPECTING PATTERNS

Title:

DETERMINING ADJUSTMENT VALUE FOR RECORDING POSITION DEVIATION AT PRINTING USING A PLURALITY OF KINDS OF INSPECTING PATTERNS

Document Type and Number:

WIPO Patent Application WO/2002/007983

Kind Code:

A1

Abstract:

An adjustment value for adjusting a main-scanning-direction recording position deviation is easily set when printing for forming dots on a printing medium by jetting ink droplets. During a bidirectional printing, patches T21-T25 and patches T31-T35 are printed in order to determine deviation distances (adjustment values) of dot forming positions in a return path. Each patch is formed based on the same printing data D1 consisting of yellow Y, light cyan LC and light magenta LM. When forming patches T21-T25, respective dots are formed in go and return paths of a main scanning; printing is done with each of dot printing positions in a return path changed slightly. Patches T31-T35 are formed in a go path only of a main scanning. Selecting a patch, having a printing result closest to those of respectively adjacent patches T31-35, out of the patches T21-T25 can determine a staggering amount (adjustment value) in ink droplet jetting timing that will minimize dot forming position deviations.

Inventors:

NUNOKAWA HIROKAZU (JP)

Application Number:

PCT/JP2001/006474

Publication Date:

January 31, 2002

Filing Date:

July 26, 2001

Export Citation:

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Assignee:

SEIKO EPSON CORP (JP)
NUNOKAWA HIROKAZU (JP)

International Classes:

B41J2/21; B41J19/14; B41J2/01; (IPC1-7): B41J19/18; B41J29/46; B41J2/01; B41J2/525

Foreign References:

EP0895869A2	1999-02-10
JPH0781190A	1995-03-28
JP2001038930A	2001-02-13
EP0982139A1	2000-03-01

Other References: