Patent JPS547337A successfully refreshed from Google Patents.
JPS547337A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Two-color copying method
Assignee: Ricoh Co Ltd
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Filing: 1977-06-20
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Granted: —
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Expires: 1997-06-20
Abstract
Abstract PURPOSE: To form a 2-color image in a short copying time by one development using 2color toners different from each other in charging polarity, by employing a photoreceptor having a photoconductive layer with positive and negative charging characteristics equal to each other, and by forming a 2-color latent image consisting of positive and negative voltage static images. COPYRIGHT: (C)1979,JPO&Japio
Inventors
- 👤 Koji Sakamoto
- 👤 Seiichi Miyagawa
- 👤 Susumu Tatsumi
- 👤 Yoshihiro Ogata
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-09 19:30
CPC Classifications
—
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