| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus which has small-sized and simple constitution and can discriminates the kind of a number of cartridges. <P>SOLUTION: The image forming apparatus is provided with an image forming apparatus main body, a cartridge which is freely attachable to and detachable from the image forming apparatus main body and a discrimination means for discriminating the suitability between the cartridge and the image forming apparatus main body, wherein the discrimination means includes a first discrimination means provided with an electric key between a plurality of slit pores or recessed parts and a second discrimination means provided with a mechanical key composed of recessed and protruded parts. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
