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Patent Searching and Data


Title:
COLOR ELECTROPHOTOGRAPHIC METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/1990/004810
Kind Code:
A1
Abstract:
In a conventional color electrophotographic method using a single transfer system, a color toner which cannot provide the highest image density until as many as four to six toner layers are superposed has been employed. Therefore, the color tone of a mixed color image formed by the superposition of toner images having different colors is likely to change or non-uniformity of color is likely to occur. The present invention uses a color toner only a single layer of which provides substantially the highest image density to eliminate the drawback described above to thereby make it possible to reproduce a mixed color image using a single transfer system. According to the present invention, a full color image having a gradation can be reproduced clearly.

Inventors:
TAKASHIMA YUJI (JP)
YAMAMOTO HAJIME (JP)
Application Number:
PCT/JP1988/001104
Publication Date:
May 03, 1990
Filing Date:
October 28, 1988
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
International Classes:
G03G9/097; G03G13/01; (IPC1-7): G03G13/01; G03G9/08
Foreign References:
JPS63144360A1988-06-16
JPH06388571A
JPS58202458A1983-11-25
JPS57130043A1982-08-12
JPS59161983A1984-09-12
Other References:
See also references of EP 0406414A4
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