Canon 7086 Series, Service Manual

Page: 405 / 735

Chapter 10
10-21
10.5.17 Drum Heater Switch Assembly
10.5.17.1 Removing the Drum Heater Switch Assembly
0010-9614
iR7105 / iR7095 / iR7086
1) Remove the rear cover.
2) Remove the left lower cover. (4 screws)
3) Remove the 3 screws [1], and disconnect the 7 connectors [2]; then, de-
tached power cord base [3]. thereafter, free the fixing claw to detach the
drum heat switch [4].
F-10-71
10.5.18 DC Controller PCB
10.5.18.1 Removing the DC Controller PCB
0010-9613
iR7105 / iR7095 / iR7086
1) Remove the rear cover.
2) Disconnect all connectors of the PCB, and remove the 4 screws [1];
then, detach the DC controller PCB [2].
F-10-72
10.5.18.2 After Replacing the DC Controller PCB
0010-9611
iR7105 / iR7095 / iR7086
Before starting the work and checking
- Be sure to print out the user mode/service mode data before replacing the
DC controller PCB.
- Be sure to adjust the on/off timing of the clutch in service mode (COPIER
> FUNCTION > MISC-P > CL-ADJ) after replacing the DC controller
PCB. Before adjusting, be sure to place two or more sheets of A4 or LTR
in the following pick-up slots, otherwise you can't perform the adjust-
ment.
- Left deck
- Cassette 4
- Paper deck (accessory)
Points to note when turning the power off (Executing the shutdown
sequence)
Be sure to turn off the main power after executing the shutdown sequence to
protect the hard disk.
Points to note when turning the power on (When Delivery accessory
is mounted)
When any delivery accessory (Finisher, Stacker, and/or Perfect binder) is
mounted, be sure to turn the power on in the order of the delivery accessory
to the host machine. If you turn on the power in reverse order, the delivery
accessory cannot be correctly recognized.
1) Turn the power on.
2) Execute the followings in service mode.
- COPIER > FUNCTION > CLEAR > DC-CON (Clear the RAM of the DC
controller PCB)
- COPIER > FUNCTION > CLEAR > CNT-DCON (Clear the service coun-
ter of the DC controller PCB)
3) Turn the power off and back to on. (Turning the power off/on executes to
clear the RAM.)
4) Input the order of connecting the delivery accessories in service mode be-
low.
- COPIER > OPTION > ACCPSD-D > ACC1 through ACC8 (Set the order
of connecting the delivery accessories.)
5) Turn the power off and back to on. (Turning the power off/on enables the
setting of the connection order of the delivery accessories and the deliv-
ery accessories can be recognized.)
6) Input "0" in the service mode below.
- COPIER > OPTION > BODY > FIX-EXP (Fixing exp control mode)
7) Input the value on the service label in the appropriate item of service
mode.
8) Turn the power off and back to on. (Turning the power off/on enables the
value input in service mode.)
9) Execute the followings in service mode.
- COPIER > FUNCTION > MISC-P > CL-ADJ (Level 2)
- COPEIR > FUNCTION > SENS-ADJ > OP-SENS (Level2)
10) Input the value on the label of new DC controller PCB in the appropriate
item of service mode.
F-10-73
[1] COPIER > ADJUST > DEVELOP > D-HV-DE
[2] COPIER > ADJUST > HV-TR > D-HV-TR
[3] COPIER > ADJUST > HV-TR > D-PRE-TR
[4] COPIER > ADJUST > HV-SP > D-HV-SP
[5] COPIER > ADJUST > DEVELOP > OFFSETDA
11) Turn the power off and back to on.
10.5.19 Control Panel Inverter PCB
10.5.19.1 Before Starting the Work
0011-8154
iR7105 / iR7095 / iR7086
1) Remove the control panel.
2) Remove the 5 rubber pieces [1] from the back of the control panel.
[2]
[2]
[2]
[1] [1]
[1]
[3]
[4]
[1]
[1]
[2]
DC+09+28+24+09+25
[1] [2] [3] [4] [5]