Photocopying – Contact printing – Light boxes
Patent
1993-04-26
1994-08-16
Smith, Matthew S.
Photocopying
Contact printing
Light boxes
355203, 355204, 355271, 355272, 355273, 355317, 355326R, 355327, G03G 2100
Patent
active
053391365
ABSTRACT:
Drum-shaped image and transfer members are controlled by a set of sensors and flags which determine the position of the leading edge of a toner image as it approaches a transfer zone and the leading edge of a receiving sheet as it approaches the transfer zone. A logic and control controls the speed of the transfer drum as it approaches the transfer zone to assure a predetermined spacial relationship between the two leading edges. The leading edge of the receiving sheet is sensed on the transfer drum by sensing a difference in reflectivity between the sheet and a low reflectivity area which the sheet overlies.
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Johnson Kevin M.
Parsons Michael H.
Eastman Kodak Company
Smith Matthew S.
Treash Leonard W.
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