Liquid ejecting apparatus

Details Liquid ejecting apparatus Liquid ejecting apparatus

2008-07-23

2010-06-29

Nguyen, Lamson D (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S041000

Reexamination Certificate

active

07744189

ABSTRACT:
A controller of a liquid ejecting apparatus forms first inspection patterns on a medium in a head moving direction while moving a liquid ejecting head in a forward direction. Corresponding second inspection patterns are formed on the medium in the head moving direction while moving the liquid ejecting head in a backward direction. When forming the patterns, the controller sets a voltage of a drive pulse corresponding to a preferable combination of the first and second inspection patterns, as a normally-used voltage used for normal forming. The controller differentiates the voltages of the drive pulses used for forming the inspection pattern for every combination of the first and second inspection patterns. The second inspection patterns correspond to the first inspection patterns at timings when positions of the second inspection patterns in the head moving direction are theoretically aligned with the positions of the first inspection patterns.

REFERENCES:
patent: 6491373 (2002-12-01), Fujita et al.
patent: 6726303 (2004-04-01), Otsuki
patent: 6739699 (2004-05-01), Sender et al.
patent: 7377613 (2008-05-01), Yamazaki et al.
patent: 11-058729 (1999-03-01), None

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