Patent ID: 6925267
Filing Date: 2005-08-02
Classification: G03G

Abstract:
1. A memory device to be mounted on a process cartridge of an image forming apparatus, the process cartridge being usable with a main body of the image forming apparatus, the image forming apparatus including a photosensitive drum, charging means for charging the photosensitive drum, developing means for developing a latent image formed on the photosensitive drum with developer, a developer container, and detecting means for detecting a remaining amount of developer in the developer container, said memory device comprising: a first memory portion for storing first flag information indicating whether the remaining amount of the developer in the developer container is not more than a first value or more than the first value; and a second memory portion for storing second flag information indicating whether the remaining amount of the developer in the developer container is not more than a second value or more than the second value, wherein the second value is less than the first value, wherein the first flag information and the second flag information relate to information for warning a user about the remaining amount of the developer in the developer container.