Title:
DEVELOPING CARTRIDGE
Document Type and Number:
WIPO Patent Application WO/2020/195288
Kind Code:
A1
Abstract:
A developing cartridge is attachable to a drum cartridge including a photosensitive drum. The developing cartridge includes a developing roller, a casing and a cam. The developing roller is rotatable about a first axis extending in a first direction. The developing roller is configured to be positioned at a contact position where the developing roller is in contact with the photosensitive drum. The developing roller is also configured to be positioned at a separated position where the developing roller is separated from the photosensitive drum. The casing is configured to accommodate therein developing agent. The cam is movable relative to the casing between a first position and a second position in the first direction. The second position is a position further in a direction from one side toward another side in the first direction than the first position. The cam has a sloped surface sloping with respect to the first direction. In a state of attachment of the developing cartridge to the drum cartridge, the developing roller is positioned at the contact position at the first position of the cam. A portion of the developing cartridge is in contact with the drum cartridge and functions as a pivot center so that the casing and the developing roller are pivotally moved about the pivot center when the cam is moved from the first position to the second position. In the state of attachment of the developing cartridge to the drum cartridge, the developing roller is positioned at the separated position at the second position of the cam.
Inventors:
OOKA KAZUAKI (JP)
Application Number:
PCT/JP2020/005458
Publication Date:
October 01, 2020
Filing Date:
February 13, 2020
Export Citation:
Assignee:
BROTHER IND LTD (JP)
International Classes:
G03G21/18; G03G15/08
Domestic Patent References:
| WO2019187234A1 | 2019-10-03 |
Foreign References:
| US20110222903A1 | 2011-09-15 | |||
| JPH10222042A | 1998-08-21 | |||
| US20130322918A1 | 2013-12-05 | |||
| US20160252877A1 | 2016-09-01 | |||
| JP2011059510A | 2011-03-24 | |||
| EP3571551A1 | 2019-11-27 | |||
| US20110222903A1 | 2011-09-15 |
Other References:
See also references of EP 3948430A4
Attorney, Agent or Firm:
KITAZAWA, Kazuhiro et al. (JP)
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