Ricoh FT5535 Service Manual page 170

10.3 IMAGE AREA BIAS VOLTAGE ADJUSTMENT
10.3.1 Development Bias Adjustment (SP2-201-001)
When:
Purpose:
How:
NOTE: Normally the SP2-201-001 setting should be "5" (standard).
Development bias adjustment should be done only when adjusting light
intensity (SP4-001) after performing the drum initialization (SP3-123), if
necessary.
SP-2-201-001 Development Bias Adjustment
Setting
1
2
3
4
5
6
7
8
9
1. Enter SP2-201-001.
2. Change the setting displayed in the reduce/enlarge indicator with the numeric
keys.
3. Leave this SP mode.
FT5535/4527/4522
If the image density at manual density level 4 cannot
be adjusted to specification with the exposure lamp
voltage (SP4-001) after performing SP3-123 (drum
initialization) when the drum is replaced.
To adjust the copy image density.
SP2-201-001 changes the development bias voltage
used for copying.
Density
Dark
Normal
Light
5-54
Development Bias
Correction Voltage
+80V
+60V
+40V
+20V
± 0V
–20V
–40V
–60V
–80V
FSM