Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Process of making developer composition
Patent
1997-03-13
1998-12-08
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Process of making developer composition
G03G 9087
Patent
active
058466835
ABSTRACT:
The extra-fine toner arising in the toner producing process, is returned to the mixing step where it is mixed again with the binder resin and the coloring agent, and the compound is sent out to the kneading step. In this procedure, the particle size of the binder resin is set in accordance with the particle size and blending amount of the extra-fine toner, the kind of the binder resin, etc. By using the binder resin having the thus determined particle size, the amount of the binder to be fed into the mixer or the amount of the compound ejected from the mixer are maintained uniform. Further, when the extra-fine toner is mixed with the starting materials, the blending ratio of the extra-fine toner to the starting material is set between 5 wt. % and 10 wt. %, and the blending ratios of the charge control agent and the coloring agent are set equal to those of the normal process where no recycled toner is added.
REFERENCES:
patent: 5589310 (1996-12-01), Uno et al.
patent: 5637734 (1997-06-01), Ikushima et al.
Akazawa Yoshiaki
Morinishi Yasuharu
Murakami Toshihiko
Nakamura Tadashi
Ogawa Satoshi
Conlin David G.
Goodrow John
Neuner George W.
Sharp Kabushiki Kaisha
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