Photocopying – Contact printing – Light boxes
Patent
1994-07-25
1995-10-24
Beatty, Robert
Photocopying
Contact printing
Light boxes
271197, 271276, G03G 2100
Patent
active
054614678
ABSTRACT:
An apparatus for advancing a copy sheet includes a moving imaging member having an unfused toner image. The copy sheet is in contact with the moving imaging member to transfer the toner image from the imaging member to the copy sheet. The copy sheet is then engaged by a moving sheet transport. A vacuum draws the copy sheet toward the sheet transport while a pressure sensor detects the vacuum pressure in the transport to control the air flow through the transport so as to maintain a low and constant drive force in response to the level of vacuum sensed by the sensor. The low drive force exerted on the sheet is lower than a holding force of the sheet to the moving imaging member thus causing the sheet to slide on the transport.
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Beatty Robert
Beck J. E.
Fleischer Henry
Xerox Corporation
Zibelli R.
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