Ricoh B156 Service Manual page 247

Rev. 10/2005
Mode No.
3
(Class 1, 2, and 3)
970 Image Area Rate
1 M
2 C
3 Y
4 Bk
⇒
5 Oil End
971 Toner Revitalization
1 Toner Revitalization
⇒
972 Counting The Number Of A4/Lt SEF Developments For Toner Refresh Mode
1 Development counter
for A4/LT SEF
980 1C Idling
1 1C Idling
990 Process Control Off
1 All ON/OFF Selection
(0: OFF/ 1: ON)
2 After CH Cleaning
ON/OFF Selection
(0: OFF/ 1: ON)
SM
CÓPIA NÃO CONTROLADA
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]
When the average BK Image pixel is larger than 4.2%,
0.5% toner refresh (default) is carried out in duplex
mode. When the average BK Image pixel is 4.2% or
less, current toner refresh is carried out.
[0 ~ 10.0 / 0.5 / 0.1 %/step] (BICU v1.04, Main v1.05)
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.
Usually, 1 A4/LT SEF sheet is counted as 1, but for
machines which use this paper as their main size, a
setting of "1.2". [1 or 1.2 count/ 1 / ]
Enables/disables 1-color idling after paper transfer.
[0 ~ 1 / 0 / 1 /step]
• 0: Disables
• 1: Enables
Set to 1 if the user complains about diagonal lines in
solid areas 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)
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)
5-19
CÓPIA NÃO CONTROLADA
SERVICE PROGRAM MODE
Function / [ Setting ]
Toner Revitalization:
B156/B220