Thermal marking system for photographic media

Details Thermal marking system for photographic media Thermal marking system for photographic media

1985-10-02

1986-12-16

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

With film severing

346 76PH, 355 41, 355 50, G03B 2900

Patent

active

046293124

ABSTRACT:
A photographic printer of the type wherein a web of photographic material is advanced to and from an exposure station and wherein individual exposure areas of the photographic material are selectively marked by a thermal marking system. The thermal marking system of the present invention includes a thermally activated marking tape and a thermal print head which selectively applies thermal energy to portions of the tape. A frictional engagement between the photographic material and tape results in a movement of the tape with the photographic media when the media is driven through the printer. In a preferred embodiment, the friction between the tape and media is selectively established by intermittently establishing an intimate contact between them.

REFERENCES:
patent: 3947109 (1976-03-01), Kinder et al.
patent: 3951545 (1976-04-01), Lucht
patent: 4073588 (1978-02-01), Zangenfeind et al.
patent: 4239377 (1980-12-01), Rasmussen, Jr.
patent: 4264197 (1981-04-01), Pone et al.
patent: 4403854 (1983-09-01), Von Stein et al.
patent: 4506824 (1985-03-01), Bartz
patent: 4531135 (1985-07-01), Toshima

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