Document conveyor belt release mechanism

Details Document conveyor belt release mechanism Document conveyor belt release mechanism

1994-04-22

1995-09-19

Grimley, A. T.

Photocopying

Contact printing

Light boxes

271198, G03G 2100

Patent

active

054520673

ABSTRACT:
An automatic document conveyor for an image processing machine having an endless belt with a driven roller and a follower roller. The endless belt mechanism includes a front frame and a rear frame which are coupled together a distance apart in the direction substantially perpendicular to the longitudinal direction of the endless belt. First and second movable frames are coupled to first ends of each of the front frame and the rear frame and support the follower roller. A third movable frame is coupled to the second end of the front frame. The driven roller is supported by the third movable frame and the second end of the rear frame, and a drive source is coupled to the end of the driven roller adjacent the rear frame. Springs urge the three movable frames in directions tensioning the endless belt. The first and second movable frames can be moved against their springs to release the tension of the follower roller on the endless belt. The third movable frame can be moved against its spring to release the tension of the driven roller on the endless belt while retaining the coupling of the endless belt with the drive source.

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