Photocopying – Contact printing – Light boxes
Patent
1992-06-05
1992-11-24
Pendegrass, Joan H.
Photocopying
Contact printing
Light boxes
271202, 271270, 355295, 355309, G03G 1520
Patent
active
051667355
ABSTRACT:
A sheet transport system incorporating a control for matching drive speeds imparted to a sheet extending between adjacent workstations is disclosed. The copy sheet is engaged by a receiving surface disposed between the workstations and is adhered to the receiving surface by vacuum. The copy sheet follows a path offset from a linear path extending between the workstations. Fuser rolls are driven at a slightly higher speed to tension the copy sheet and lift it from the transport surface. The lifting is detected by a sensor for sensing the vacuum in a plenum communicated with the receiving surface. The drive speed of the fuser rolls is controlled in accordance with the signal from the sensor.
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Horgan Christopher
Pendegrass Joan H.
Xerox Corporation
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