Process cartridge for an image forming apparatus

Abstract

A process cartridge removably insertable in a body of an image-forming apparatus. The process cartridge has at least one constituent element executing an image formation process, and a non-volatile memory. In the non-volatile memory, data having an identical content are stored at a plurality of mutually spaced locations, the number of which depends on a kind of the data. With respect the locations for the data of an identical content, an address shift amount from one location to another is set according to the kind of the data.

Description

[0001] This application is a divisional application of Chinese Invention Patent Application No. 200510076496.1 filed on July 24, 2001, entitled "Processing Box for Imaging Device". technical field [0002] The present invention relates to a process cartridge detachably inserted into an image forming apparatus main body, and having executable image forming process components and a nonvolatile memory storing given information associated with an address. Background technique [0003] In recent years, a process cartridge detachably inserted into an image forming apparatus main body has come into general use with the main purpose of recovering natural resources. In addition to the components necessary to complete the known electrophotographic process, including a photosensitive drum, a charging unit, an exposing unit, a developing unit, a cleaner, and a toner storage, some of these process cartridges also have non-volatile The memory stores information on the respective process c...

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Problems solved by technology

[0005] However, the aforementioned constant amount of address shifting brings about an unhelpful increase in address usage, resulting in memory inefficiency

It is inconvenient for the processing box because it is difficult to fit a large memory on it, and considering the cost

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