US 7,596,327 B2
Developing cartridge and image forming apparatus
Naoya Kamimura, Nagoya (Japan)
Assigned to Brother Kogyo Kabushiki Kaisha, (Japan)
Filed on Sep. 26, 2006, as Appl. No. 11/526,599.
Claims priority of application No. 2005-282341 (JP), filed on Sep. 28, 2005.
Prior Publication US 2007/0140743 A1, Jun. 21, 2007
Int. Cl. G03G 15/00 (2006.01); G03G 15/08 (2006.01)
U.S. Cl. 399—12  [399/13; 399/254] 19 Claims
OG exemplary drawing
 
1. A developing cartridge comprising:
a developer container that contains a developer;
a developer carrier that carries the developer;
an agitation member that comprises a rotary shaft, agitates the developer in the developer container and supplies the developer to the developer carrier;
a drive member that is fixed at one end of the rotary shaft and configured to directly transmit a driving force to the rotary shaft; and
a detected portion that is provided at the other end of the rotary shaft and comprises a phase information provision portion that contributes to detect that a rotation phase of the rotary shaft falls in a preset reference phase.