发明名称 |
Toner density detection method for electrophotographic apparatus |
摘要 |
A toner density detection method for an electrophotographic apparatus in which driving of a rotary roll provided at an outlet of a special vessel is continued for a predetermined period of time (e.g., several seconds) after the operation of the electrophotographic apparatus is stopped. All or substantially all of the developing agent is thus exhausted or removed from the special vessel after the electrophotographic apparatus is stopped, so that the true permeability of the developing agent can be detected by a permeability sensor when the operation of the electrophotographic apparatus is restarted. As a result, the toner density of the developing agent can be controlled and kept normal, so that the printing quality can be stabilized.
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申请公布号 |
US5359396(A) |
申请公布日期 |
1994.10.25 |
申请号 |
US19930063426 |
申请日期 |
1993.05.19 |
申请人 |
HITACHI KOKI CO., LTD. |
发明人 |
OGURA, YOSHIO;TSUJI, YASUYUKI;YOKOKAWA, SHUUHO;TAKAHASHI, KUNITOMO;NAKAJIMA, ISAO;AKAI, MUNEYOSHI;UENO, HIROSHI;WATANABE, ISAO;ONOSE, TSUKASA |
分类号 |
G03G15/08;(IPC1-7):G03G21/00;G03G15/06 |
主分类号 |
G03G15/08 |
代理机构 |
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