Photocopying – Contact printing – Light boxes
Patent
1993-05-19
1994-02-22
Grimley, A. T.
Photocopying
Contact printing
Light boxes
270 59, 355321, G03G 2100
Patent
active
052892514
ABSTRACT:
In a copier or printer producing a sequential stream of sheets with limited time therebetween, and with compiling and finishing of those output sheets on-line while subsequent sheets are being printed, a non-slip sheet feeder normally feeding copy sheets downstream to the compiler is selectably intermittently temporarily stopped holding the lead edge area of the first copy sheet for the next set to be finished so that continued feeding of the trail end of the same sheet by a relatively closely spaced upstream feeder buckles that sheet into a buckle chamber assisted by a buckle inducing arcuate baffle extending from the other side of the sheet path. The next printed sheet is fed normally while the buckled first sheet is positively held out of its way. When the second sheet reaches the downstream feeder, it restarts to positively feed both sheets downstream to the compiler, together, but overlapped by a preset amount for registration stacking. A substantial increase is provided in the time for the preceding copy sheets to be operated on in the compiler. A plural sheet collection point may also be provided by this sheet buffering system.
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Buddendeck Gerald A.
Mandel Barry P.
Rizzolo Charles D.
Grimley A. T.
Royer William J.
Xerox Corporation
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