Diazo copier

Details Diazo copier Diazo copier

1982-06-21

1984-05-22

Wintercorn, Richard A.

Photocopying

Contact printing

Machine

354300, G03D 700, G03B 2730

Patent

active

044498152

ABSTRACT:
A diazo copier having an exposure section, an ammonia developer section, a copy degassing section, and an enclosed copy receptacle. To develop an exposed copy, it is contacted with ammonia vapors in the development section. The ammonia vapors absorbed by the copy material are released by heating the copy to an elevated temperature in the degassing section from which the copy is deposited in the enclosed receptacle. The released ammonia vapors are removed from the copy by circulating a stream of air through the receptacle and around the copy.

REFERENCES:
patent: 4059409 (1977-11-01), Barto et al.
patent: 4167319 (1979-09-01), Feitzinger et al.
patent: 4273435 (1981-06-01), Hewelt et al.
patent: 4303329 (1981-12-01), Michlin
patent: 4316663 (1982-02-01), Fischer
patent: 4358193 (1982-11-01), Hale
patent: 4371247 (1983-02-01), Hewelt et al.

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