Image forming apparatus having an LED array head for forming ima

Details Image forming apparatus having an LED array head for forming ima Image forming apparatus having an LED array head for forming ima

1998-10-09

2000-10-24

Lee, Susan S. Y.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

347130, G03G 1304, B41J 2385

Patent

active

061375187

ABSTRACT:
In an image forming apparatus for electrophotographically forming an image with an LED (Light Emitting Diode) array having a number of LEDs arranged in an array for controllably emitting light in accordance with image data, dots to be respectively formed by the LEDs have a target dot diameter X satisfying a relation of P<X<2P where P is a pitch P between the LEDs. Despite that the dot diameters of LEDs may slightly differ from each other, an image free from noticeable white stripes or black stripes is achievable although some difference in density may occur, depending on the overlapping degree of or the distance between dots.

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patent: 6034712 (2000-03-01), Iwasaki

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