Image forming apparatus with security feature which prevents copying of specific types of documents
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 8, 1997
Grant Date -
N/A
app pub date -
Sep 14, 1994
filing date -
Sep 14, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a digital copier, facsimile machine, scanner, image filing apparatus or similar apparatus, an image processing device is provided with a capability of surely identifying confidential or secrecy documents which should be protected from unauthorized persons. The confidential or inhibited documents are provided with inhibition patterns by printing or copying over the entire surfaces thereof. The device prevents image data representative of this kind of documents from being improperly copied, transferred, stored or input.
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Family
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Cited Art Landscape
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