Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Patent
1988-04-25
1989-07-25
Wintercorn, Richard A.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Automatic circuit-interrupting devices
355100, 430138, G03B 2732, G03B 2752
Patent
active
048518816
ABSTRACT:
In an optical printing system for printing an image on a recording sheet, adopted as the recording sheet is a sheet coated with microcapsules on one surface thereon. Each microcapsule envelopes a first component which changes color when reacts with a second component. The second component may be coated on the recording sheet or may be coated on a separate developing sheet. The microcapsule further envelopes a third component which varies the mechanical strength of microcapsule when light is projected thereto. An image is formed on the recording sheet by selectively exposing a light thereto in accordance with the image to be printed thereon, and the microcapsules on the recording sheet whose mechanical strength is low are then ruptured by rupturing means. Thereby, the color is developed or the recording sheet on the first component with the second component. The printing operation of the printing system is executed by control means in accordance with a predetermined sequence.
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Kobayakawa Koji
Komiya Ryohei
Matsumoto Yumio
Sago Akira
Sakai Jun
Brother Kogyo Kabushiki Kaisha
Wintercorn Richard A.
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