| 摘要 |
FIELD: electrophotographic devices. ^ SUBSTANCE: image-forming device provided with cartridge mounted in it, is made for forming image at different speeds. Cartridge has part of processing members for maintaining operation of image forming and memorizing medium which has memory area for storing data. The data relates to conditions of image forming by processing units for any speed of image forming. Device has control unit for setting conditions of image forming by processing units correspondingly to speeds of forming of image based on data memorized in memory unit. Memorizing medium can additionally have second memory area for storing data which relates to threshold value of cartridge's factor of usage value and third memory area for storing data related to threshold value of cartridge's factor of usage value. Cartridge's factor of usage, which depends on speed of image forming, is compensated. ^ EFFECT: improved efficiency of operation. ^ 25 cl, 9 dwg |
