Patent ID: 7570891
Filing Date: 2009-08-04
Classification: G03G

Abstract:
1. A process cartridge for use in an image forming apparatus, comprising: an image carrier cartridge having an image carrier configured to carry an electrostatic latent image thereon, the image carrier cartridge configured to be removably installed in a main body frame of the image forming apparatus; and a developing cartridge including a developer chamber configured to hold developer and a developing carrier configured to perform development by supplying the developer to the electrostatic latent image formed on the image carrier, the developing cartridge configured to be removably set in the image carrier cartridge; wherein the image carrier cartridge further includes a shielding member configured to move between a blocking position where the shielding member blocks light emitted from a detector provided in the main body frame of the image forming apparatus and an unblocking position where the shielding member does not block the light emitted from the detector, and the shielding member is in the blocking position when the developing cartridge is removed from the image carrier cartridge and is in the unblocking position when the developing cartridge is set in the image carrier cartridge.