Brother DCP 8085DN, Service Manual

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2-24
Confidential
3.4.2 Cartridge life
A new toner cartridge can print approximately 3,000 (standard toner) or approximately 8,000
(high yield toner) A4 or Letter size single-sided pages at normal duty (ISO/IEC19752). In the
case of low-duty printing, if the number of printed pages are reached the cartridge life,
"
Replace Toner " message appears on the LCD before the toner runs out because the
developer roller surface or other toner sealing is worn out due to a rotation of the rollers.
<Cartridge Life>
The toner cartridge life varies according to the average number of printing per job.
As the deterioration of toner will be less in case of printing more pages continually once time
than usual, the more printing pages per job, the more printable pages of toner cartridge.
Increasing the number of times of power switch ON and warming operation in company with
opening or closing cover will also cause the deterioration of toner, so the more frequency
those operations be taken, the less pages the toner cartridge can print.
Memo :
• If reached the cartridge life end, " Replace Toner " message appears even if the
toner is contained.
Table: The relationship between the average printing pages per job and the toner cartridge life
Average printed pages
(page/job)
1 2 3 4 5 6 7 8
Cartridge Life (Standard) 3,500 5,274 6,346 7,064 7,579 7,966 8,267 8,508
Cartridge Life (High Yield) 9,500 14,315 17,225 19,174 20,571 21,621 22,439 23,094
Table: The toner cartridge lives in case of pressing power switch Off/ON before printing.
Average printed pages
(page/job)
1 2 3 4 5 6 7 8
Cartridge Life (Standard) 1,925 3,263 4,246 5,000 5,596 6,079 6,478 6,814
Cartridge Life (High Yield) 5,225 8,856 11,526 13,571 15,189 16,500 17,584 18,496
Toner life
Full
Low
Empty
pages
Cartridge Life End
Toner Empty Toner Empty
Low-duty
High-duty
Normal-duty
(ISO/IEC19752)