Structure for positioning a developing device in a recording app

Details Structure for positioning a developing device in a recording app Structure for positioning a developing device in a recording app

1995-05-16

1997-10-14

Braun, Fred L.

Electrophotography

Image formation

Development

G03G 1508

Patent

active

056781482

ABSTRACT:
A copying apparatus including a photosensitive drum having an image carrying surface and a developing unit. The developing unit includes a developer storage device, a developing roller having a developing surface for conveying a developer from the developer storage device to the image carrying surface, and a matching roller near each end of the developing roller for contacting the photosensitive drum to provide a predetermined gap between the image carrying surface and the developing surface. The developing unit is slidably supported in both a first direction parallel to the axis of rotation of the photosensitive drum and in a second direction transverse to the axis of rotation of the photosensitive drum. The copying apparatus also includes a mounting and dismounting unit which is capable of urging the matching rollers into contact with the photosensitive drum through a sliding movement of the developing unit in the second direction, as well as moving the matching rollers out of contact with the photosensitive drum through a sliding movement of the developing unit in the second direction to allow the movement of the developing unit in the first direction.

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