Ricon B156, Service Manual

Page: 247 / 781

SERVICE PROGRAM MODE
SM 5-19 B156/B220
Service
Tables
3
Mode No.
(Class 1, 2, and 3)
Function / [ Setting ]
Image Area Rate
1 M Specifies the minimum image area (expressed as a
percentage of an A4 page) required to maintain optimum
development unit condition (
Toner Revitalization:
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.
2 C [0 ~ 10.0 / 2.0 / 0.1 %/step]
3 Y [0 ~ 10.0 / 2.0 / 0.1 %/step]
970
4 Bk [0 ~ 10.0 / 4.7 / 0.1 %/step]
Toner Revitalization 971
1 Toner Revitalization Enables/disables the toner revitalization.
[0 ~ 1 /
0 / 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.
1C Idling 980
1 1C Idling 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).
Process Control Off 990
1 All ON/OFF Selection
(0: OFF/ 1: ON) 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)
2 After CH Cleaning
ON/OFF Selection
(0: OFF/ 1: ON) Turns on/off process control for the process control that
is done after charge corona wire cleaning.
[0 ~ 1 /
0 / 1 /step]
• 0: OFF (Process control enabled)
•
1: ON (Process control disabled)