Ricoh D127 Service Manual page 271

2201* Development Bias Adjust
Printing
Adjusts the voltage applied to the development roller for printing. Image
2201 1
density becomes higher when you specify a smaller value (a greater absolute
value). Image density becomes lower when you specify a greater value (a
smaller absolute value).
ID sensor pattern
(0:N 1:H 2:L 3:HH 4:LL)
2201 2
Adjusts the toner density control of the developer case.
[0= Normal / 1= Thick / 2= Thin / 3= More thick / 4= More thin]
ID sensor pattern
2201 3
(Temporally Input)
2210 Bias Off Time
2210 1 Charge Bias
2210 2 Development Bias
2211 PCU Reverse Interval
This value affects how many sheets are copied continuously before PCU
2211 1
reversing.
2213 Copies After Toner Near End
After "Toner Near End" detected, this value affects how many sheets are
2213 1 copied before "Toner End" will occur.
[0= 50 sheets / 1= 20 sheets]
SM Appendix
[–1500 to –200 / –650 / 10 /step = 1V]
[ 0 to 4 / 0 / 1 /step]
[-700 to -300 / -420 / 10 V/step]
[10 to 150 / 100 / 10 /step]
[10 to 200 / 80 10 /step]
[0 to 999 / 100 / 1 sheet/step]
3-15
System Service Mode
D127/D128