Service manual

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