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SERVICE PROGRAM MODE
Mode No.
3
(Class 1, 2, and 3)
970
Image Area Rate
1
M
2
C
3
Y
4
Bk
971
Toner Revitalization
1
Toner Revitalization
972
Development Counter
980
1C Idling
1
1C Idling
990
Process Control Off
1
All ON/OFF Selection
(0: OFF/ 1: ON)
Function / [ Setting ]
Specifies the minimum image area (expressed as a
percentage of an A4 page) required to maintain optimum
development unit condition (
SP3–971).
[0 ~ 10.0 / 2.0 / 0.1 %/step]
After 20 sheets over a number of small jobs (or after 50
sheets in one job), if the developed area is less than the
value of this SP mode, toner is transferred to the image
transfer belt and cleaned off. This is performed during
the doctor roller reverse rotation.
[0 ~ 10.0 / 2.0 / 0.1 %/step]
[0 ~ 10.0 / 2.0 / 0.1 %/step]
[0 ~ 10.0 / 4.7 / 0.1 %/step]
Enables/disables the toner revitalization.
[0 ~ 1 / 1 / 1 /step]
• 0: Disables
• 1: Enables
Continuous printing with a relatively low coverage ratio
(CMYK less than 5% each) tends to reduce the charge
potential of the toner, because the toner remains in the
hopper for a long time. This can lead to spots on the
copy. Toner revitalization removes this defective toner
periodically.
Selects the development counter method. This counter
is only used for toner revitalization.
[0 ~ 1 / 0 / 1 /step]
0: A4 SEF 1 count
1: A4 SEF 1.4 count
If dirty background occurs after you make many copies
with A4 SEF paper, then set this to 1. Then, toner
revitalization will be done more frequently.
Enables/disables 1-color idling after paper transfer.
[0 ~ 1 / 0 / 1 /step]
• 0: Disables
• 1: Enables
Set this to 1 if the user complains about diagonal lines in
solid areas of prints that only use one toner color (M, C,
or Y).
Turns on/off process control for all process control
execution timings.
[0 ~ 1 / 0 / 1 /step] DFU
• 0: OFF (Process control enabled)
•
1: ON (Process control disabled)
5-20
10 February, 2005
Toner Revitalization:
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