Photocopying – Projection printing and copying cameras – With developing
Patent
1980-01-30
1982-03-30
Franklin, Lawrence R.
Photocopying
Projection printing and copying cameras
With developing
354299, 219216, 219388, G03B 2752, H05B 100
Patent
active
043221580
ABSTRACT:
A compact thermal developer is mounted in a microfiche reader printer. The developer is a two-stage unit having a pair of roller-heater units located to pass on exposed copy sheet in one direction through succeeding stages in an over-and-under movement to develop the copy and produce a flat hard copy. Each roller-heater unit includes a roller having an outer thin friction coating rotatably supported within an arcuate recess portion of a heater bar. The heater bar and roller are arranged with roller biased toward the heater to grasp the copy sheet. The roller includes a thin aluminum tube supported by heat insulating end members mounted on a shaft with a floating connection to support the tube with a permission relative axial movement to compensate for different coefficients of thermal expansion. A thin silicone rubber coating on the tube establishes positive sheet movement while providing sufficient thermal transmission to present a thermally light background member. The roller-heater units shafts are mounted in plastic end caps supports. The microfiche reader includes a double-faced mirror unit pivotally mounted to transmit the microfiche image onto a front viewing screen or alternately to an exposure frame structure. A small mirror is pivoted from the image path in the alternate position. A copy paper roll is coupled to powered transfer and cutter assembly for moving the paper into and from the exposure frame to the developer.
REFERENCES:
patent: 3311040 (1967-03-01), Ishikawa
patent: 3575580 (1971-04-01), Anderson
patent: 3629549 (1971-12-01), Svendsen
patent: 3666247 (1972-05-01), Banks
patent: 3669707 (1972-06-01), Donnelly et al.
patent: 3725639 (1973-04-01), Seil et al.
patent: 3739143 (1973-06-01), Amundson et al.
patent: 3877805 (1975-04-01), Heldenbrand et al.
patent: 3922083 (1975-11-01), Freeman et al.
patent: 3991483 (1976-11-01), Knechtel et al.
patent: 4087676 (1978-05-01), Fukase
patent: 4114021 (1978-09-01), Nishide et al.
Frias Ronald J.
Gross Roger A.
Jagielski David
Franklin Lawrence R.
Mathews Alan
Micron Corporation
LandOfFree
Thermal film development apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermal film development apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal film development apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-380409