Image forming apparatus

Details Image forming apparatus Image forming apparatus

1994-02-23

1995-09-12

Reinhart, Mark J.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

347115, B41J 2435

Patent

active

054501180

ABSTRACT:
An image forming apparatus has a structure in which a gradation is reproduced when a laser beam, which is pulse-width-modulated corresponding to an image signal, scans the surface of a recording media. The image forming apparatus includes a pulse width modulation circuit having an automatic adjustment function to automatically adjust an input/output characteristics using a calibration signal as a trigger signal. The image forming apparatus further includes a calibration signal generator which generates a calibration signal just before an image formation.

REFERENCES:
patent: 5043745 (1991-08-01), Inoue et al.
patent: 5260799 (1993-11-01), Loce et al.

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