Image forming apparatus having a function for checking to copy a secret document
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United States of America Patent
Stats
-
Feb 2, 1988
Grant Date -
N/A
app pub date -
May 5, 1986
filing date -
May 8, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An image forming apparatus for checking the copying of secret documents. The apparatus includes an original table on which original documents are placed. If the original document is a secret document, it is provided with a predetermined identification section. Scanning and image forming apparatus is provided which forms an image of the document when authorized to do so. In operation, secret document detecting apparatus detects whether or not a secret document identification section is present on a given document to be copied. First controlling apparatus is provided for driving the scanning apparatus prior to an image forming scan. Second controlling apparatus is provided for either enabling or disabling the image forming apparatus depending on whether a secret document is present. Third and fourth controlling apparatus is provided for driving the image forming apparatus in accordance with a displacement command of a light transmitting means which performs erasure of specified portions of the secret document by transmitting light through the original at specified erasure locations.
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Cited Art Landscape
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