Electrophotographic recording apparatus having a plurality of de

Details Electrophotographic recording apparatus having a plurality of de Electrophotographic recording apparatus having a plurality of de

1992-09-15

1994-04-26

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355260, G03G 1501

Patent

active

053071476

ABSTRACT:
An electrophotographic recording apparatus is provided having a reduced overall size. The space around a photosensitive member required for the developing unit to be located is minimized, more particularly, it i minimized in the lengthwise directional space. In the electrophotographic recording apparatus having a photosensitive member which moves at a predetermined speed; an exposure device for exposing the photosensitive member; a developing unit for developing an electrostatic latent image obtained by the exposure; and a transferring device for transferring a developed visible image to a recording paper sheet or the like, the developing unit is composed of developing devices, a plurality of supporting members for supporting the developing devices and an element for rotating the supporting members. The supporting members can be rotated while making a portion adjacent to a widthwise directional end of the photosensitive member to be a supporting point in a range from a state where the surface of the photosensitive member and the surface of a developing roll of each developing device run parallel to each other to a state where they are positioned substantially perpendicular to each other.

REFERENCES:
patent: 4697915 (1987-10-01), Hayashi et al.
patent: 4937626 (1990-06-01), Kohtani et al.
patent: 5053820 (1991-10-01), Preszler et al.
patent: 5111245 (1992-05-01), Dececca et al.
patent: 5172165 (1992-12-01), Hatakeyama et al.
patent: 5177507 (1993-01-01), Ng

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