Image forming device

Details Image forming device Image forming device

2006-03-21

2006-03-21

Nguyen, Thinh (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S037000

Reexamination Certificate

active

07014289

ABSTRACT:
A head (101) prints a predetermined test pattern under the control of a head control unit (204) in order to precisely detect a head deviation when a head has been changed, the printed test pattern is read by a sensor 110 and detected by a pattern detector (209). Every time an interrupt signal corresponding to the edge of a detected pattern element is input to the CPU (203), a value of a main scanning counter (205)/main scanning timer (207) (and/or a sub-scanning counter (206)/sub-scanning timer (208)) is read, the printing position of each pattern element is detected from the value, and the mounting deviation of the head is calculated based on the detection result of the printing position of each pattern element printed by the head. The vertical bar of a test pattern may be printed in multiple passes. A plurality of edges may be detected at different longitudinal positions of the bar and the detected results are averaged to determine an edge position.

REFERENCES:
patent: 4675696 (1987-06-01), Suzuki
patent: 5170416 (1992-12-01), Goetz et al.
patent: 5451990 (1995-09-01), Sorenson et al.
patent: 5600350 (1997-02-01), Cobbs et al.
patent: 5926192 (1999-07-01), Yamane
patent: 6082911 (2000-07-01), Murakami
patent: 6354691 (2002-03-01), Uchikata
patent: 6367903 (2002-04-01), Gast et al.
patent: 6390588 (2002-05-01), Ikeda
patent: 6409301 (2002-06-01), Takata et al.
patent: 0 540 244 (1993-05-01), None
patent: 0 540 244 (1993-05-01), None
patent: 0 622 236 (1994-11-01), None
patent: 0 622 236 (1994-11-01), None
patent: 0 858 897 (1998-08-01), None
patent: 0 867 298 (1998-09-01), None
patent: 7-323582 (1995-12-01), None
patent: 2000-94718 (2000-04-01), None

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