Recording apparatus having a transfer drum shifting device

Details Recording apparatus having a transfer drum shifting device Recording apparatus having a transfer drum shifting device

1995-02-24

1996-07-09

Pendegrass, Joan H.

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355274, G03G 1516

Patent

active

055349846

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: 5237374 (1993-08-01), Ueno et al.
patent: 5374982 (1994-12-01), Boockholdt

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