Photocopying – Projection printing and copying cameras – With developing
Patent
1988-01-21
1988-11-22
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
With developing
355 77, G03B 2900, G03B 2732
Patent
active
047869461
ABSTRACT:
Photographic paper (20) is delivered from a supply roll (14) in a cassette (15) in a printer (10) where variable lengths of the paper web are cut off as sheets (30) that are imaged and processed. Cassette (15), in its delivery position, is light locked to a hood (40) and to a fixed blade (26) of a cut-off knife (25). The movable blade (27) of the cut-off knife (25) has a movable portion (44 or 64) that overlaps with a fixed portion (45 or 63) of a labyrinth light lock that is closed whenever movable knife blade (27) is closed. This blocks sheet imaging light from the leading end (21) of the paper (20) on the supply side of cut-off knife (25) when shutter (32) opens for imaging sheet (30). Shutter (32) then closes, allowing knife (25) to open for advancing another length of paper (20) and cutting off a subsequent sheet (30) for imaging another print.
REFERENCES:
patent: 3460453 (1969-08-01), Gold
patent: 3467469 (1969-09-01), Hastings et al.
patent: 3536401 (1970-10-01), Mason et al.
patent: 3746444 (1973-07-01), Kahle et al.
patent: 4076411 (1978-02-01), Crayton et al.
patent: 4298272 (1981-11-01), Stievenart et al.
patent: 4408872 (1983-10-01), Vaughan
patent: 4451141 (1984-05-01), Thebault
patent: 4547065 (1985-10-01), Thebault
patent: 4618255 (1986-10-01), Miyasaka et al.
Eastman Kodak Company
Sproule Robert H.
Wintercorn Richard A.
LandOfFree
Paper delivery system for photographic printer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Paper delivery system for photographic printer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Paper delivery system for photographic printer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-438159