Apparatus and method for inhibiting dust adherence to the contac

Details Apparatus and method for inhibiting dust adherence to the contac Apparatus and method for inhibiting dust adherence to the contac

1995-06-02

1996-11-19

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355 30, 361214, G03G 1504

Patent

active

055768040

ABSTRACT:
A moving optical system assembly is disposed under a contact glass for supporting a document on the upper surface of a frame of a copying machine, and comprises a moving frame 2 equipped with a source of light 4, and a document sensor arm 10 which undergoes expansion or contraction accompanying the movement of the moving frame 2, wherein a transparent electrically conducting film 20 is laminated on the upper surface of the document sensor arm 10. This assembly effectively prevents dust from adhering on the lower surface of the contact glass.

REFERENCES:
patent: 4298279 (1981-11-01), Yoshimura et al.
patent: 4837598 (1989-06-01), Nonami
patent: 5059991 (1991-10-01), Morisawa
patent: 5117259 (1992-05-01), Etou et al.
patent: 5298938 (1994-03-01), Tanabe
patent: 5398099 (1995-03-01), Nagamochi et al.

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