Image forming apparatus with led heads staggered in...

Details Image forming apparatus with led heads staggered in... Image forming apparatus with led heads staggered in...

2008-06-24

2008-06-24

Do, An H. (Department: 2853)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

C347S239000, C358S486000

Reexamination Certificate

active

07391430

ABSTRACT:
In an image forming apparatus, a plurality of light emitting device array units for drawing image data on a photoconductor are arranged in a main scanning direction corresponding to an axial direction of the photoconductor with staggered positioning in a sub-scanning direction. The image forming apparatus includes a ratio setting unit configured to set a ratio of fine size adjustment for finely adjusting a size of the image data, a computing unit configured to compute a displacement of the image data responsive to the ratio of fine size adjustment set by the ratio setting unit, and a fine size adjustment unit configured to change intervals of occurrences of line synchronizing signals in response to the computation by the computing unit.

REFERENCES:
patent: 5251045 (1993-10-01), Sakata
patent: 5805738 (1998-09-01), Kaburagi et al.
patent: 6400854 (2002-06-01), Kudoh
patent: 6801334 (2004-10-01), Enomoto
patent: 6894712 (2005-05-01), Ishikawa et al.
patent: 2002/0167680 (2002-11-01), Sakurai
patent: 2003/0030853 (2003-02-01), Makihira et al.
patent: 2002-19178 (2002-01-01), None
patent: 2002-283609 (2002-10-01), None

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