Image forming apparatus using a process unit

Details Image forming apparatus using a process unit Image forming apparatus using a process unit

G - Physics

03

G

G03G 21/00 (2006.01) B41J 29/20 (2006.01) G03G 15/00 (2006.01) G03G 15/08 (2006.01) G03G 15/22 (2006.01)

Patent

CA 2099057

In a recording apparatus for performing electrostatic recording using toner, an image forming apparatus has a process unit including, as one unit, at least a photosensitive member and a spent toner holding section, a first counter for counting a total amount of use of the photosensitive member and a second counter for counting a total amount of toner has been consumed. A determining section using the process unit determines the necessity for the process unit to be replaced with a new process unit by comparing with a total amount of use of the photosensitive member counted by the first counter with a first predetermined reference value and the total amount of consumed toner with a second predetermined reference value according to whether the total amount of use of the photosensitive member exceeds the first reference value or the total amount of toner counted exceeds the second reference value.

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