Ricoh B286 Service Manual page 327

2201 Development Bias Adjustment
This SP sets the development bias to adjust the amount of toner used in the
image area.
1 Image Area
2 ID Sensor Pattern: Low Duty Copy Jobs
3 ID Sensor Pattern: High Duty Copy Jobs
4 Copy Jobs
2207 Forced Toner Supply
Push [Execute] to force toner supply. Make a copy and check the image
density. This SP supplies more toner to make light copies darker. Each time
this SP is done, toner is supplied one time.
SM
[-56 to -952/-650/1 V step]
[-56 to -952/-414/1 V step]
[56 to 952/453/1 V step]
[0 to 1/0/1]
0: Low Duty Mode
1: High Duty Mode
5-57
SP2-xxx Drum
B286/B289