Photocopying – Projection printing and copying cameras – With developing
Patent
1987-03-11
1992-05-05
Hayes, Monroe H.
Photocopying
Projection printing and copying cameras
With developing
355 78, 355 63, 355106, 430138, G03B 2732, G03B 2752
Patent
active
051112370
ABSTRACT:
A light-and pressure-sensitive recording sheet and an original, overlapping each other, are introduced into an image forming apparatus, and are exposed to radiation on a transparent drum by means of a light source in the drum, whereupon a latent image, based on the contents of the original, is formed on the recording sheet. Then, the recording sheet is separated from the original by means of a separator, and is passed between a pair of pressure rolls. When the recording sheet is exposed, microcapsules thereon change their hardness. These microcapsules are ruptured selectively by pressure applied to the sheet. As a result, a chromogenic material, contained in the microcapsules, and a developer material, on the surface of a substrate of the recording sheet, react with each other, so that the sheet surface changes its color. Thus, the latent image is developed to accomplish copying in accordance with the original.
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Akao Michitoshi
Hayashi Shigeyuki
Kawahara Hiroshi
Komiya Ryohei
Sakai Jun
Brother Kogyo Kabushiki Kaisha
Hayes Monroe H.
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