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 Regulation Roller (Side) is +365V +/-5V.
4. If the Positive Developer Bias from BIAS to the Regulation Roller (Side) does not satisfy +365V
+/-5V, readjust it to satisfy the requirement.
To adjust it, rotate the VR3 on the BIAS with a screwdriver.
VR4 VR3 VR6 VR5
Output 4
MENU
MENU
CN401
1
Output 3
Multi-meter
(DC volt range)
4-103
ENTER ONLINE
ENTER ONLINE
CN402
CN403
1
1
VR1 VR8 VR7
VR2
Output 2
Output 1
K115sm4ea.doc