Photocopying – Contact printing – Light boxes
Patent
1991-09-05
1992-09-29
Grimley, A. T.
Photocopying
Contact printing
Light boxes
271225, 271277, 271301, 271308, 355308, 355309, 355321, G03G 2100
Patent
active
051517450
ABSTRACT:
An apparatus for advancing a sheet in a predetermined path is described. The apparatus includes a mechanism for advancing the sheet in the path. The apparatus further includes a first mechanism for controlling movement of the sheet while it is being advanced in the path, the first controlling mechanism being in contact with the sheet in a first mode of operation and being spaced apart from the sheet in a second mode of operation. Moreover, the apparatus includes a second mechanism for controlling movement of the sheet while it is being advanced in the path, the second controlling mechanism being in contact with the sheet in a first mode of operation and being spaced apart from the sheet in a second mode of operation. The apparatus additionally includes an intermediate member movable between a first location and a second location, each of the controlling mechanisms being positioned in one of its respective modes of operation in response to the intermediate member being positioned at its first location and being positioned in the other of its respective modes of operation in response to the intermediate member being positioned at its second location.
REFERENCES:
patent: 3999987 (1976-12-01), Davis et al.
patent: 4073489 (1978-02-01), Idstein et al.
patent: 4641830 (1987-02-01), Okuda et al.
patent: 4761003 (1988-08-01), Barrois et al.
Cassano James R.
Dastin Richard M.
Durland Scott C.
Swanson Roger M.
Grimley A. T.
Maginot Paul J.
Smith Matthew S.
Xerox Corporation
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