Image forming apparatus and method

Details Image forming apparatus and method Image forming apparatus and method

1988-07-12

1990-06-19

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

With developing

355100, 355106, 430138, G03B 2732, G03B 2752

Patent

active

049357697

ABSTRACT:
An image forming apparatus has a pair of rollers normally in contact with each other. An invisible image is formed on a light-accepting sheet in the form of a roll sheet coated with microcapsules which harden when exposed to light. The image carrying sheet is kept half-way wrapped around one of these rollers and compressed between them together with an image receiving sheet such that microcapsules remaining soft are ruptured and a visible image is formed on the image receiving sheet. After each cycle of image forming processes is completed, the roll sheet is moved backward by a specified distance to reduce waste and the rollers are moved apart so that the roll sheet can correct itself if it is beginning to wrinkle or to move sideways.

REFERENCES:
patent: 3452181 (1969-06-01), Stryjewski
patent: 3536401 (1970-10-01), Mason et al.
patent: 4444485 (1984-04-01), Kogane
patent: 4737822 (1988-04-01), Taniguchi et al.

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