Developing method for electrophotography
Abstract
Abstract A DEVELOPING METHOD FOR ELECTROPHOTOGRAPHY COMPRISING THE STEPS OF DEVELOPING AN ELECTROSTATIC LATENT IMAGE ON A PHOTOCONDUCTIVE INSULATING LAYER WITH A LIQUID DEVELOPING AGENT CONTAINING THEREIN FINE PARTICLES HAVING A POSITIVE ELECTRICAL CHARGE AND SUBSEQUENTLY CLEANING SAID INSULATIVE LAYER CARRYING THE IMAGE THEREON, THE IMPROVEMENT WHICH COMPRISES SAID LIQUID DEVELOPING AGENT BEING COMPRISED OF A CARRIER LIQUID, FINE PARTICLES HAVING A POSITIVE ELECTRIC CHARGE CONTAINED IN SAID CARRIER LIQUID IN THE DISPERSED STATE, AND A RESIN CONTAINDE IN SAID CARRIER LIQUID IN THE DISSOLVED STATE (I) SAID CARRIER LIQUID HAVING AN ELECTRIC RESISTANCE EXCEEDING 1011 $ CM. AND BEING INSOLUBLE IN ETHYL CELLULOSE, (II) SAID FINE PARTICLES WHICH ARE CONTAINED IN THE DISPERSED STATE BEING COMPOSED OF (A) PIGMENT PARTICLES INSOLUBLE IN THE CARRIER LIQUID AND (B) ETHYL CELLULOSE PARTICLES, AND (III) AT LEAST A PART OF THE RESIN WHICH CONTAINED IN THE DISSOLVED STATE IN THE SAID LIQUID BEING INSOLUBLE IN A CLEANING LIQUID USED IN SAID CLEANING.
Inventors
- 👤 Yasuo Tamai
- 👤 Masamichi Sato
- 👤 Seiji Matsumoto
- 👤 Satoru Honjo
Bibliographic Details
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