Image cartridge is composed with drum cartridge and toner cartridge as above figure and it can be
separated.
Drum’s life Cycle is 34K with 5% chart as base and toner cartridge of enclosed one is 2.5K for
M401/M402/M403, and for AM is all 2.5K/5K/8.5k.
Drum cartridge does not have a separate chip, but toner cartridge has a separate information chip to
store toner counter and manufacturer information and the machine refers to the information on the
chip to determine toner replacing period and auto toner counter reset.
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