Dustproof transparent member

Details Dustproof transparent member Dustproof transparent member

1990-06-29

1991-10-22

Griffin, Donald A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

355215, G01D 1514, G03G 2100

Patent

active

050599917

ABSTRACT:
A dustproof transparent member is fitted to a window in an optical system container of e.g. an optical scanning unit in a laser beam printer. On the surface of the dustproof transparent member, a layer of transparent conductive material is formed.
The body of the printer and the dustproof transparent member are electrically connected to make their electric potentials equal, thereby preventing floating substances in the atmosphere from electrostatically sticking to the dustproof transparent member.

REFERENCES:
patent: 4560999 (1985-12-01), Tokuhara
patent: 4723150 (1988-02-01), Lutus et al.
patent: 4823002 (1989-04-01), Saito
patent: 4837598 (1989-06-01), Nonami
patent: 4970552 (1990-11-01), Okamoto et al.
German Offial Action with partial translation.

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