Concept Of Parts Life - Konica Minolta bizhub c20 Service Manual

Field Service Ver. 1.0 Sep. 2008
3.3

Concept of parts life

• Detected by the waste toner full sensor.
Waste toner • A waste toner full condition is detected when about 1,500
bottle color printed pages are produced after a waste toner near
full condition has been detected.
• Based on the fusing motor rotation data, the fuser unit driv-
ing time is counted.
Fuser unit Comparing the fuser unit driving time count value with the
number of pages printed, the machine detects the one that
reaches its life value earlier.
Ozone filter
Transfer roller • Based on the number of pages printed, the life is detected.
• Base on the intermediate transport motor rotation data, the
Transfer belt
transfer belt driving time is counted and the life is detected.
• Base on the color PC drum motor or intermediate transport
motor rotation data, the imaging unit driving time is
counted.
Imaging unit
Comparing the imaging unit driving time count value and
the number of pages printed, the machine detects the one
that reaches its life value earlier.
A. Conditions for life specifications values
• The life specification values represent the number of pages printed or figures equivalent
to it when the given conditions (see the table given below) are met. They may be more or
less, depending on the machine operating conditions of each individual user.
Item
Job type
Media size
Color ratio
Original density
Description
⎯
2 consecutive pages (2 pages/job)
A4S or LetterS
Black to Color = 6 : 4
C/W ratio = 5% each color
3. Periodical check
Color: 9,000 prints
(Continuous printing)
100,000 prints (2P/J)
(Continuous printing)
20,000 prints (2P/J)
Description
Life value
Monochrome:
36,000 prints
120,000 prints
120,000 prints
120,000 prints
120,000 prints
30,000 prints
7