Patent ID: 7693442
Filing Date: 2010-04-06
Classification: G03B,G03G

Abstract:
1. A developing cartridge, comprising: a case including a first sidewall and a second sidewall opposite to the first sidewall; a developing roller disposed between the first sidewall and the second sidewall, the developing roller including a developing roller shaft configured to rotate and a developing roller member configured to carry a developing agent thereon, the developing roller member being provided around the developing roller shaft, the developing roller shaft rotating about a first axis line; an electrode disposed on the first sidewall adjacent to the developing roller shaft, the electrode being electrically connected to the developing roller member; a driven coupling disposed on the second sidewall, the driven coupling configured to rotate about a second axis line; and a supply roller configured to supply the developing agent to the developing roller, the supply roller being disposed parallel to the developing roller, wherein the supply roller includes a supply roller shaft configured to rotate, a supply roller member configured to supply the developing agent to the developing roller, the supply roller member being provided around the supply roller shaft, and a supply roller gear connected so as to rotate together with the supply roller shaft, wherein the electrode is electrically connected to the supply roller shaft, wherein the electrode has a first portion configured to surround a circumferential portion the developing roller shaft and a second portion configured to surround a circumferential portion of the supply roller shaft, wherein the electrode has a contact portion disposed above the first portion and the second portion, and wherein at least a part of the electrode is disposed to intersect with the second axis line.