Canon iR8500 Service Manual page 708

<HV-PRI>
Use it to adjust the output of the primary charging assembly.
If you have cleared the RAM on the DC controller PCB or replaced the DC controller
PCB, enter the setting indicated on the service label.
GRID
Enter the adjustment value of the grid current for the primary charging as-
sembly.
Range of
adjustment 400 to 900
<HV-TR>
Use it to adjust the output of the transfer charging assembly/pre-transfer charging assem-
bly.
TR-N1
Use it to enter the output adjustment value of the transfer charging current
(for plain paper, printing on one side or on the 1st side of a double-sided
print).
Range of
adjustment -650 to 0
TR-N2
Use it to enter the output adjustment value of the transfer charging current
(for plain paper, printing on the 2nd side of a double-sided print).
Range of
adjustment -650 to 0
PRE-TR
Use it to enter the output value of the pre-transfer charging current.
Range of
adjustment 0 to 300
COPYRIGHT© 2001 CANON INC.
If you have cleared the RAM on the DC controller PCB or replaced
the DC controller PCB, enter the setting indicated on the service la-
bel.
If you have cleared the RAM on the DC controller PCB or replaced
the DC controller PCB, enter the setting indicated on the service la-
bel.
If you have cleared the RAM on the DC controller PCB or replaced
the DC controller PCB, enter the setting indicated on the service la-
bel.
2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001
SERVICE MODE
COPIER>ADJUST
S-65