KIP 9000 Service Manual page 197

2. Enter the Service Mode, select the Special Mode (Sub Mode No.9), and select the Item No.7
(Developer Bias [Positive] Adjustment Mode).
3. Press the [ENTER] Key to output the Positive Developer Bias from BIAS to each roller of
Developer Unit.
Measure the voltage with multi-meter.
Press the [ENTER] Key again to stop outputting when measurement is finished.
Standard value of the Positive Developer Bias to the Toner Supply Roller is -350V +/-3V.
4. If the Positive Developer Bias from BIAS to Toner Supply Roller does not satisfy -350V +/-3V,
readjust it to satisfy the requirement.
To adjust it, rotate the VR7 on the BIAS with a screwdriver.
VR4 VR3 VR6 VR5
Output 4
MENU
MENU
CN401
1
Output 3
4-99
ENTER ONLINE
ENTER ONLINE
CN402 CN403
1 1
VR1 VR8 VR7
VR2
Output 2
Multi-meter
(DC volt range)
Output 1
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