Multi-beam laser printer with beam spacing detection during blan

Details Multi-beam laser printer with beam spacing detection during blan Multi-beam laser printer with beam spacing detection during blan

1996-11-25

2000-08-29

Le, N.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

347257, 358296, B41J 2435

Patent

active

RE0368415

ABSTRACT:
In a laser printer wherein a photoconductive drum is scanned by utilizing a plurality of laser beams, there are detected spacings between the plural laser beams, such detection being confined to a blanking time. On the basis of the detected results, the spacings between the plural laser beams are controlled; and this state is maintained for a printing time. With this arrangement, it is possible to accurately detect the spacings between the plural laser beams thereby to obtain the practicable laser printer employing the plural laser beams.

REFERENCES:
patent: 4404521 (1983-09-01), Kitamura
patent: 4622564 (1986-11-01), Kaku

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