Title:
IMAGE-FORMING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2014/077416
Kind Code:
A1
Abstract:
According to the present invention, the occurrence of charging non-uniformities in the electric potential of the photoreceptor surface is suppressed even when the temperature of a charging member newly installed as a replacement in an image-forming apparatus is lower than the temperature inside the image-forming apparatus. The image-forming apparatus has: a photoreceptor; a charging unit; an application unit for applying a charging bias to the charging unit; a toner-image formation unit for forming a toner image on the photoreceptor; a transfer unit; a fixing unit; a first housing for internally accommodating the photoreceptor and the units; a second housing having an internally disposed recording-material-accommodating section for accommodating a recording material; a first temperature detection unit provided inside the first housing; a second temperature detection unit provided inside the second housing; a mounting detection unit for detecting mounting of the charging unit to the image-forming apparatus; and a setting unit for implementing a first setting mode for setting the inter-peak voltage of an alternating-current voltage superimposed on the charging bias, the setting being made on the basis of the detection results of the first temperature detection unit, the setting unit implementing a second setting mode for setting the inter-peak voltage of the alternating-current voltage on the basis of the detection result of the lower detected temperature between the first temperature detection unit and the second temperature detection unit if the mounting detection unit has detected a mounting operation.
Inventors:
HANO MASAMI (JP)
MAKINO MASAHIRO (JP)
MAKINO MASAHIRO (JP)
Application Number:
PCT/JP2013/081460
Publication Date:
May 22, 2014
Filing Date:
November 15, 2013
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
G03G15/00; G03G15/02
Foreign References:
| JP2008191620A | 2008-08-21 | |||
| JP2002049225A | 2002-02-15 | |||
| JP2006010903A | 2006-01-12 |
Attorney, Agent or Firm:
YAMADA, RYUICHI (JP)
Ryuichi Yamada (JP)
Ryuichi Yamada (JP)
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