Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1995-08-09
1997-07-08
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430126, G03G 1316
Patent
active
056459661
ABSTRACT:
The improved image forming method reduces the chance of toner particles of adhering or filming on the surfaces of impression members, thereby enabling the formation of high-resolution image in a consistent and reliable manner. The method uses a charging member 4 for contact charging a latent image carrier 1, a developing member 11 for impression development of a pattern of latent electrostatic image, a transfer member 18 for impression transfer of the developed toner 10, and an impression cleaning member 23 for cleaning the latent image carrier 1 after toner transfer. The toner to be used satisfies one of the following conditions: that it should have an external additive added in an amount of 0.4 to 1.2 wt %; that it should have a volume resistivity of at least 10.sup.17 .OMEGA.cm; that it should incorporate a release agent in an amount no more than 5 wt %; or that it should not include large amounts of fine particles with a size of 5 .mu.m and less, or coarse particles with a size of 12.7 .mu.m and more.
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Patent abstract of Japan, Col. 13, No. 98, p. 31 and JP 63-279261 A (Toshiba).
Goodrow John
Seiko Epson Corporation
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