Cartridge Life - Konica Minolta Bizhub 20p Service Manual

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3.3.2 Cartridge life

A new toner cartridge can print approximately 8,000 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" is indicated by lighting Toner LED before the
toner runs out because the developer roller surface or other toner sealing is worn out due to
a rotation of the rollers.
Toner life
Full
Low
Empty
Memo :
• If reached the cartridge life end, "Replace Toner" message appears even if the
toner is contained.
<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.
Table: The relationship between the average printing pages per job and the toner cartridge life
Average printed pages
(page/job)
Cartridge Life
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.
Table: The toner cartridge lives in case of pressing power switch Off/ON before printing.
Average printed pages
(page/job)
Cartridge Life
High-duty
Toner Empty
1
9,500
1
5,225
Normal-duty
(ISO/IEC19752)
Low-duty
Toner Empty
2
3
4
14,315 17,225 19,174 20,571 21,621 22,439 23,094
2
3
4
8,856
11,526 13,571 15,189 16,500 17,584 18,496
2-12
Cartridge Life End
pages
5
6
7
5
6
7
Confidential
8
8

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