Apparatus and method for forming digital image

Details Apparatus and method for forming digital image Apparatus and method for forming digital image

1993-02-04

1994-05-10

Braun, Fred L.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

355214, 358501, 358518, 358521, G01D 1500

Patent

active

053112156

ABSTRACT:
In forming a digital image on the photoconductor wherein the intensity of the laser beam is modulated according to multi-level image data, a standard toner image is formed at an intermediate intensity at which the reproduced image density is not affected by the beam size, and the toner density is detected. On the other hand, the size of the beam for exposing the photoconductor is measured. Then, the gradation characteristic is controlled according to the toner density and the beam size. Thus, the effect of the beam size on the gradation characteristic is corrected.

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