Recording apparatus and recording position correcting method...

Details Recording apparatus and recording position correcting method... Recording apparatus and recording position correcting method...

2005-03-29

2005-03-29

Pham, Hai (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S014000, C347S037000

Reexamination Certificate

active

06871931

ABSTRACT:
There is provided a recording apparatus that carries out recording using a plurality of recording heads wherein the recording positions of the heads are automatically and accurately corrected, the heads being used to record inks of different colors. To accomplish this, offset measurement patterns with different ink colors are each adjusted so that a read output waveform and a threshold cross each other at a position intermediate between falling edges of the output waveform. Thus, an edge portion of each pattern is accurately detected.

REFERENCES:
patent: 6353485 (2002-03-01), Kaneko
patent: 6561613 (2003-05-01), Cunnagin et al.
patent: 6607260 (2003-08-01), Ikeda
patent: 2000-238339 (2000-09-01), None

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