Image forming apparatus

Details Image forming apparatus Image forming apparatus

2007-11-14

2008-11-04

Nguyen, Lamson D (Department: 2861)

Incremental printing of symbolic information

Ink jet

Medium and processing means

Reexamination Certificate

active

07445329

ABSTRACT:
A recording unit is movable in a first direction and has a plurality of dot forming portions arranged in a predetermined interval in a second direction that intersects the first direction. A conveying roller conveys the recording medium in the second direction. Recording operations and conveying operations are repeated for forming an image. A setting unit sets a number of effective dot forming portions used in a single recording operation such that a length in the second direction corresponding to the number of effective dot forming portions equals to either an even number times one half of circumference of the conveying roller or a value that is closest to an even number times one half of circumference of the conveying roller, when a required interval of dots formed on the recording medium in the second direction is less than or equal to one half of the predetermined interval.

REFERENCES:
patent: 6827421 (2004-12-01), Nunokawa et al.
patent: 6843546 (2005-01-01), Nunokawa
patent: 7387355 (2008-06-01), Kakutani
patent: 2002-283543 (1992-10-01), None
patent: 2003-320719 (2003-11-01), None

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