Image forming apparatus which monitors hardware errors of a controller of a copying-inhibited function
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United States of America Patent
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Jun 17, 1997
Grant Date -
N/A
app pub date -
Mar 28, 1995
filing date -
Mar 30, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A controller accurately discriminates a copying-inhibited document prepared by using paper on which a copying-inhibited pattern is printed or copied on the entire surface, executes the copying inhibition control, detects a hardware error, and executes the copying inhibition control upon detection of the hardware error by recognizing a copied document as a copying-inhibited document and executing copying inhibition control when a copying-inhibited document detected signal is inputted during an operation for reading a copied document from the copying-inhibited document discriminator, and also by determining that a hard error has occurred in the copying inhibition discriminating board, giving a warning through an operation displaying unit, and executing a copying inhibition control when a copying-inhibited document signal or a copying-inhibited document not-detected signal is inputted during a period other than that for reading a copied document.
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