Drive circuit, light print head, and image forming apparatus

Details Drive circuit, light print head, and image forming apparatus Drive circuit, light print head, and image forming apparatus

2011-08-02

2011-08-02

Pham, Hai C (Department: 2861)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

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C347S247000

Reexamination Certificate

active

07990407

ABSTRACT:
A drive circuit is provided for supplying a drive current to drive a plurality of driven elements each having two main electrodes. The drive circuit includes a switch circuit for receiving a drive signal; and a constant voltage circuit connected to the switch circuit for adjusting the drive current at a constant level.

REFERENCES:
patent: 5969744 (1999-10-01), Sakashita et al.
patent: 6710794 (2004-03-01), Yamazaki et al.
patent: 7286259 (2007-10-01), Ohno et al.
patent: 2004/0228057 (2004-11-01), Mayama et al.
patent: 2004-195796 (2004-07-01), None

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