Developing cartridge and image forming apparatus for protecting an electrode from damage during handling

摘要

A developing cartridge includes a housing including first and second sidewalls; a developing roller, received by the sidewalls, and rotatable about a first axis line; a coupling rotatable about a second axis line parallel with the first axis line, wherein the coupling transfers rotational force to the developing roller, the rotational force being input by an drive input part, which advances and retreats, in a direction along the second axis line; and a moving member received so that the moving member can be moved along the advancing and retreating direction. The moving member has a pushing part, which is pushed toward the second sidewall, and an electrode part, which applies developing bias, and wherein when the pushing part is pushed, the moving member moves toward the second sidewall, so that the electrode part protrudes more from the second sidewall than before the pushing part was pushed.

主权项

1. A developing cartridge comprising:
a housing configured to accommodate developer therein, the housing including:
a first sidewall anda second sidewall opposed to the first sidewall; a developing roller received by the first sidewall and the second sidewall, and configured to rotate about a first axis line; a coupling disposed at the first sidewall and configured to rotate about a second axis line parallel with the first axis line, the coupling configured to transfer rotational force to the developing roller; and a moving member received by the first sidewall and the second sidewall and extending along the second axis line, the moving member configured to move between the first side wall and the second side wall along the second axis line, wherein the moving member includes:
a first part being disposed at one end of the moving member along the second axis line, anda second part being disposed at an other end of the moving member along the second axis line, the second part configured to be electrically connected to the developing roller, and the second part configured to protrude from the second sidewall based on moving of the moving member.