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40672201TX Rev.4
6 - 6
6.12 Toner Cartridge/Image Drum unit useful life
6.12.1 Toner Cartridge
Useful life of Toner Cartridge is as below.
1,875 pages/4% duty
(Duty means the ratio of black area in the white area)
Note 1: The first toner cartridge installed a new image drum unit will have a
decreased yield because the image drum unit itself has to be filled.
Note 2: 1,875 pages will be specified as an average of 5 cartridge's usage
6.12.2 Image Drum unit
Useful life of Image drum is as below.
4,500 pages/1 page per job.
8,000 pages/3 pages per job.
10,000 pages/Continuous print