When Replacing The Reder Controller Pcb (Ir7200) - Canon iR8500 Service Manual

CHAPTER 6 TROUBLESHOOTING

2.7.4 When Replacing the Reder controller PCB (iR7200)

1) Print out the data of user mode/service mode.
2) Check to make sure that the Execute/Memory lamp in the control panel ore OFF, and
turn off the main power switch.
3) Disconnect the power plug from the power outlet.
The machine remains supplied with power as long as its power plug is con-
nected to a power outlet even when is main power switch is turned off. Be
sure to disconnect the power plug.
4) Replace the reader controller PCB.
5) Remove the EEPROM (1 pc.) from the existing PCB, and mount it to the new PCB.
6) After assembling the machine, connect the power plug to the power outlet, and turn on
the main power switch.
7) Check to make sure that the following service mode settings are the same as the data be-
fore replacement:
COPIER>ADJUST>AE>all items
COPIER>ADJUST>ADJ-XY>all items
COPIER>ADJUST>CCD>all items
If any service mode setting is faulty, enter the respective setting recorded on the service
label in service mode.
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COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001