Checking & Adjustment Of Hvp6 (Grid Plate Of Image Corona) - KIP 9000 Service Manual

4. 3. 6 Checking & Adjustment of HVP6
(Grid Plate of Image Corona)
The standard value of the Grid Bias outputted from HVP6 is -780V +/-20V (About 12.2V on the
Test Pin). Check and adjust the HVP6 in the following way.
1. Remove the Drum from the machine for the safety.
The Drum will be damaged if not removed!
2. There is a connector "CN501" on the HVP6.
Connect "+" of the multi-meter to the white cable (Test Pin) of CN501, which is the 2nd cable
from the top of CN501.
Connect "-" to the ground.
Select the DC volt range on the multi-meter.
GND
3. Enter the Service Mode, select the Function Checking Mode (Sub Mode No.3), and select the
Signal Code "A6" (HV6 : Grid Bias Control Signal).
White cable
(Test Pin)
CN501
VR2
①
Multi-meter
(DC volt range)
MENU
4-79
VR1
ENTER ONLINE
OUT
PUT
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