Photocopying – Contact printing – Light boxes
Patent
1993-08-30
1995-04-25
Moses, R. L.
Photocopying
Contact printing
Light boxes
198825, 198840, 474123, G03G 2100
Patent
active
054103894
ABSTRACT:
A system to support a moving photoreceptor belt in an electrophotographic printing machine while minimizing lateral forces applied thereon. Pairs of idler rolls are located in contact with the inner surface of the belt in an arrangement in which the axes of rotation of the idlers are skewed in substantially equal but opposite angles from a direction perpendicular to the direction of belt motion. As the resultant lateral forces between the belt and rolls act in a direction nearly parallel to the axes of rotation of the idlers, the opposing skew essentially cancels the side force of each pair of idlers which promotes good belt tracking. As the idlers are freely rotating, drag and tensioning forces on the belt are also minimized.
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Kepner Kevin R.
Moses R. L.
Xerox Corporation
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