Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1989-10-04
1991-04-09
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 59, 430 83, G03G 5047, G03G 509
Patent
active
050064355
ABSTRACT:
An electrophotographic photosensitive member has a charge-generating layer which includes selected photosensitive pigment particles and a compound which is a tetracyanoanthraquinodimethane compound, an anthraquinone compound, a dicyanovinyl compound, or a special quinone compound. The compound is incorporated in an amount in a range from 0.01 to 2 molar equivalents, preferably 0.1 to 1 molar equivalent, to the pigment, which has a positive hole transporting property. The photosensitive member has a charge-transporting layer and can also have a protective layer. The pigment is a phthalocyanine series pigment, a squarylium series pigment, or a perylene series pigment. A process of using the photosensitive member includes reversal development and multicolor toner transfer. It is found that the process is adaptable to change in size of the transfer medium.
REFERENCES:
patent: 3877935 (1975-04-01), Regensberger et al.
patent: 4390609 (1983-06-01), Wiedemann
patent: 4882254 (1989-11-01), Loutfy et al.
Akasaki Yutaka
Aonuma Hidekazu
Hongo Kazuya
Marumo Teruumi
Nukada Katsumi
Fuji 'Xerox Co., Ltd.
Martin Roland
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