Recording apparatus having a movable cleaner blade

Details Recording apparatus having a movable cleaner blade Recording apparatus having a movable cleaner blade

1996-04-17

1999-02-23

Grimley, Arthur T.

Electrophotography

Cleaning of imaging surface

Retractable cleaning arrangement

399350, 399351, 399358, 399360, G03G 2100

Patent

active

058753826

ABSTRACT:
To provide a reasonable and economical recording apparatus wherein an inevitable fluctuation of an intermediate transfer drum or the like does not adversely influence other elements. A recording apparatus wherein a toner image on a photosensitive drum (11) is primarily transferred to an intermediate transfer drum (21) and the toner image on the intermediate transfer drum (21) is secondarily transferred to a recording medium (100), characterized in that the apparatus comprises an intermediate transfer drum shifting device (40, 70) for shifting the intermediate transfer drum (21), during the primary transfer, into a first state wherein the intermediate transfer drum (21) is brought into press-contact with the photosensitive drum (11), and, during the secondary transfer, into a second state wherein the intermediate transfer drum (21) is brought into press-contact with the recording medium (100) but not brought into press-contact with the photosensitive drum (11).

REFERENCES:
patent: 4131359 (1978-12-01), Honda
patent: 4518976 (1985-05-01), Tarumi et al.
patent: 4702591 (1987-10-01), Tsuda et al.
patent: 4768062 (1988-08-01), Tanzawa et al.
patent: 4860053 (1989-08-01), Yamamoto et al.
patent: 5107304 (1992-04-01), Haneda et al.
patent: 5237374 (1993-08-01), Ueno
patent: 5374982 (1994-12-01), Boockholdt
patent: 5442422 (1995-08-01), Owens, Jr. et al.
patent: 5446528 (1995-08-01), Nagase et al.
Official Action in German Patent Application Serial No. 195 06 828.9-51; Mar. 25, 1996.

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