Image forming apparatus having cleaning member for cleaning char

Details Image forming apparatus having cleaning member for cleaning char Image forming apparatus having cleaning member for cleaning char

1993-09-20

1995-02-21

Beatty, Robert B.

Photocopying

Contact printing

Light boxes

250325, 355207, 355215, G03G 1500

Patent

active

053920996

ABSTRACT:
An image forming apparatus includes a charger for charging a photosensitive drum, the charger having a charging wire extending in a lengthwise direction of the photosensitive drum, an optical system for illuminating a document and introducing a reflected light to the photosensitive drum to produce a latent image of the document, a detector for detecting a target portion of the charging wire causing a white line based on a copied image on copy paper, a cleaning member movable along the charging wire and adapted for cleaning the charging wire, a driver for moving the cleaning member along the charging wire, and a controller responsive to the detector for controlling the driver to move the cleaning member to the target portion of the charging wire and clean the target portion.

REFERENCES:
patent: 3842273 (1974-10-01), Van Buskirk
patent: 3965400 (1976-06-01), Tolliver
patent: 4864363 (1989-09-01), Shinada
patent: 4885466 (1989-12-01), Koichi et al.
patent: 4924268 (1990-05-01), Ogura
patent: 5012093 (1991-04-01), Shimizu
patent: 5023748 (1991-06-01), Okamoto et al.
patent: 5170314 (1992-12-01), Saito
patent: 5182694 (1993-01-01), Endo
patent: 5194897 (1993-03-01), Yoshiyama et al.
patent: 5223896 (1993-06-01), Shimizu et al.
patent: 5250991 (1993-10-01), Ikeda

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