Image forming apparatus having a function for checking to copy a

Details Image forming apparatus having a function for checking to copy a Image forming apparatus having a function for checking to copy a

1986-05-05

1988-02-02

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355133, G03G 1500

Patent

active

047231491

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.

REFERENCES:
patent: 3977785 (1976-08-01), Harris
patent: 4486090 (1984-12-01), Warhol
patent: 4586811 (1986-05-01), Kubo et al.
IBM Tech. Disc. Bull., "Preventing Copying of Classified Information", vol. 19, No. 4, Sep. '76, p. 1469.

Affiliated with

Also associated with

Rating

Image forming apparatus having a function for checking to copy a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image forming apparatus having a function for checking to copy a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus having a function for checking to copy a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1637946