Pressure developing device

Details Pressure developing device Pressure developing device

1990-01-09

1991-07-02

Mathews, A. A.

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Contact printing

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355 27, 100160, 100168, 430138, G03B 2752, B30B 304

Patent

active

050293109

ABSTRACT:
In a pressure developing device, employed in an image recording unit, including a pair of pressure developing rollers for pressurizing a material on which a visible image is to be developed through elastic springs, provided are backup rollers arranged to be brought into contact with each of the pair of pressure developing rollers. Thus, a pressure force generated between the pair of pressure developing rollers are uniformly applied to the material along a direction which the pair of pressure developing rollers are extended. Further, a pressure force, i.e., a length of each of the elastic springs is arranged to be adjusted from the outside of the pressure developing device with a simple operation by means of a screw and so forth.

REFERENCES:
patent: 4568167 (1986-02-01), Sorli
patent: 4714943 (1987-12-01), Sakakibara et al.
patent: 4827312 (1989-05-01), Ogiwara et al.
patent: 4901103 (1990-02-01), Hayakawa et al.
patent: 4908633 (1990-03-01), Ohashi et al.
patent: 4945374 (1990-07-01), Yamamoto et al.

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