Duplicator having function concerning specific mark put on recording sheet and image forming apparatus having function of processing confidential documents
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United States of America Patent
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-
Aug 25, 1998
Grant Date -
N/A
app pub date -
Jul 20, 1994
filing date -
Jul 23, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A specific mark adding unit adds a specific mark to a read-in image and a specific mark detecting unit detects the specific mark present in a read-in image. Further, a control unit changes a mode in which a read-in image is duplicated from an ordinary duplicating mode into a specific duplicating mode, the mode changing being made if the specific mark detecting unit has detected the specific mark present in the read-in image. The specific mode comprises a mode in which the read-in image is invalidated in data before being used in the duplicating operation. A unit is further provided causing the specific-mark adding function of the specific mark adding unit either to be activated or not to be activated. A unit is further provided causing the mode changing function of the mode changing unit either to be activated or not to be activated.
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