| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a toner cartridge or a print unit exceeding a service time limit from being erroneously used regarding an image forming process cartridge, a print unit, a developer cartridge and an image forming apparatus. <P>SOLUTION: The image forming process cartridge 1 is provided with an engagement control mechanism 4 whose position is changed with the lapse of time in either of the print unit 2 or the developer cartridge 3 which are integrated, and provided with a recessed part 5 set in positional relation that the engagement control mechanism 4 can be housed only during preset elapsed time in the other. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
