Fractional dot column correction for better pen-to-pen alignment

Details Fractional dot column correction for better pen-to-pen alignment Fractional dot column correction for better pen-to-pen alignment

1998-11-05

2000-11-28

Hilten, John S.

Incremental printing of symbolic information

Ink jet

Controller

40012408, 400 76, B41J 29393

Patent

active

06154230&

ABSTRACT:
Sub-pixel alignment is performed for dots from multiple printheads. In order to align, output from a first printhead is aligned with output from a second printhead, dot data is generated for the first printhead and for the second printhead. The dot data is generated from data input. The dot data indicates location of dots on a print medium. Dot shift data is used in order to make sub-pixel shifts in locations of first dots placed on the print medium by the first printhead in order to align the first dots placed on the print medium by the first printhead with second dots placed on the print medium by the second printhead. The first dots and the second dots are then placed on the print medium.

REFERENCES:
patent: 4626867 (1986-12-01), Furukawa et al.
patent: 5049898 (1991-09-01), Arthur et al.
patent: 5250956 (1993-10-01), Haselby et al.
patent: 5350929 (1994-09-01), Meyer et al.
patent: 5448269 (1995-09-01), Beauchamp et al.
patent: 5480240 (1996-01-01), Bolash et al.
patent: 5494361 (1996-02-01), Sonoda
patent: 5600350 (1997-02-01), Cobbs et al.
patent: 5604597 (1997-02-01), Imai
patent: 5847722 (1998-12-01), Hackleman

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