Light beam scanning apparatus and image forming apparatus

Details Light beam scanning apparatus and image forming apparatus Light beam scanning apparatus and image forming apparatus

1997-11-14

1999-07-27

Le, N.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

347248, 250235, 2502081, H04N 117

Patent

active

059298910

ABSTRACT:
A beam position detector output processor converts an output from a beam position detector into beam position information. A main control unit detects a total offset value of a plurality of operational amplifiers constituting the processor. The detected offset value is used to compensate a determination reference value used to control the sub-scanning position of a beam, or the beam position information obtained from the beam position detector output processor. As a result, the offsets of the operational amplifiers constituting the beam position detector output processor are compensated.

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