Image forming apparatus

Details Image forming apparatus Image forming apparatus

2007-07-17

2007-07-17

Pham, Hai (Department: 2861)

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

C347S251000

Reexamination Certificate

active

10892152

ABSTRACT:
A photosensitive body has a photosensitive layer. An optical scanning device has a deflector deflecting a light flux emitted from a light source, and scans the surface of the photosensitive body by the thus-deflected light flux. A dot is formed at a center between adjacent light fluxes as a result of the adjacent light fluxes being overlapped with one another in a sub-scan direction. A ratio of a static beam-spot diameter Ws in the sub-scan direction on the surface of the photosensitive body defined by 1/e2of the maximum value in the exposure distribution of the beam spot to an interval L between adjacent scan lines satisfies the following formula: 1.2<Ws/L<4.5.

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