Photocopying – Contact printing – Light boxes
Patent
1991-10-02
1993-06-29
Braun, Fred L.
Photocopying
Contact printing
Light boxes
355235, 355311, G03G 1504, G03G 2100
Patent
active
052238997
ABSTRACT:
A document scanning apparatus includes a first scanner for reciprocating an optical member and for exposing an original document put on a document platen, and a second scanner for feeding an original document to an exposure position and for exposing the original document at the exposure position. A selector selects either the first scanner in a stationary exposure mode or the second scanner in a dynamic exposure mode. In the stationary exposure mode, a controller causes forward movement of the reciprocating optical member to stop and the reciprocating member to move backward in accordance with a detection signal signifying that the trailing edge of a recording sheet has passed a predetermined position in the transport path for the recording sheet. In the dynamic exposure mode, the controller controls the second scanner to feed successive original documents in accordance with the same detection signal for the trailing edge of the recording sheet.
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Amanuma Takahiko
Ariga Masao
Hattori Hiroyuki
Kishi Hirotoshi
Kurita Kenji
Braun Fred L.
Canon Kabushiki Kaisha
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