Title:
ELECTROPHOTOGRAPHIC IMAGE FORMING DEVICE AND CARTRIDGE
Document Type and Number:
WIPO Patent Application WO/2020/189798
Kind Code:
A1
Abstract:
[Problem] To further develop the prior art. [Solution] This cartridge comprises: a holding part for stably holding a second unit at a separation position and a development position by a first unit, the holding part being movable between a first position and a second position; and a contact force receiving part capable of receiving contact force for moving the holding part from the first position to the second position in order to move the second unit to the development position when the second unit is located at the separation position. When a tangent to the surface of a photoreceptor at an intersection point farther away from the rotation center of a charging member out of intersection points of a straight line connecting the rotation center of the charging member and the rotation center of the photoreceptor and the surface of the photoreceptor when viewed along the direction of the rotation axis of a development member is defined as a predetermined tangent, and a region where the rotation center of the charging member is not disposed when a region is divided with the predetermined tangent as a boundary is defined as a predetermined region, the contact force receiving part is disposed in the predetermined region when viewed along the direction of the rotation axis of the development member when the second unit is located at the separation position.
Inventors:
FUKUI YUICHI (JP)
TOBA SHINJIRO (JP)
KAWANAMI TAKEO (JP)
NISHIDA SHINICHI (JP)
EGAMI YASUYUKI (JP)
TOBA SHINJIRO (JP)
KAWANAMI TAKEO (JP)
NISHIDA SHINICHI (JP)
EGAMI YASUYUKI (JP)
Application Number:
PCT/JP2020/012812
Publication Date:
September 24, 2020
Filing Date:
March 17, 2020
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
G03G21/16; G03G21/18
Foreign References:
| JP2019003197A | 2019-01-10 | |||
| JP2019040221A | 2019-03-14 | |||
| JP2018180556A | 2018-11-15 | |||
| JP2015169876A | 2015-09-28 | |||
| JP2015084013A | 2015-04-30 | |||
| JP2008170950A | 2008-07-24 | |||
| JP2006259448A | 2006-09-28 | |||
| JP2010054828A | 2010-03-11 | |||
| US20160179051A1 | 2016-06-23 | |||
| JP2007213024A | 2007-08-23 | |||
| JP2014067005A | 2014-04-17 |
Other References:
See also references of EP 3944025A4
Attorney, Agent or Firm:
TAKAO Masayuki (JP)
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