Points To Note When Replacing The Laser Unit; Bd Unit; Removing The Bd Unit - Canon ImageRunner iR8500 Series Service Manual

[2] [3]
[3] [3] [1]

7.4.1.5 Points to Note When Replacing the Laser Unit

iR105i/iR105+ / iR9070
1) Check to make sure that the Execute/Memory lamp in the control
panel is OFF; then, turn off the main power switch.
2) Disconnect the power plug from the power outlet.
The machine remains powered as long as the power plug is connected to
the power outlet. Be sure to disconnect it.
3) Replace the laser unit.
4) Record the values (LA-DELAY) indicated on the label attached to the
new laser unit.
5) Assemble the machine, and connect the power plug to the power
outlet; then, turn on the main power switch.
6) Enter the values recorded in step 4) using service mode: COPIER>
ADJUST> LASER> LA-DELAY.
7.4.1.6 Points to Note When Replacing the Laser Unit
/ iR85+ / iR8070
1) Check to make sure that the Execute/Memory lamp in the control
panel is OFF; then, turn off the main power switch.
2) Disconnect the power plug from the power outlet.
The machine remains powered as long as the power plug is connected to
the power outlet. Be sure to disconnect it.
3) Replace the laser unit.
4) Record the values (LA-DELAY) indicated on the label attached to the
new laser unit.
5) Assemble the machine, and connect the power plug to the power
outlet; then, turn on the main power switch.
6) Enter the values recorded in step 4) using service mode:
COPIER>ADJUST>LASER>LA-DELAY.

7.4.2 BD Unit

7.4.2.1 Removing the BD Unit

iR105i/iR105+ / iR9070
1) Remove the stream read fan duct.
2) Remove the 3 screws [1], and disconnect the 2 connectors [2]; then,
remove the laser fan unit [3].
3) Slide out the process unit.
[4] [3]
[3] [1]
F-7-21
0008-4353
0008-9206
0007-2674
[2] [1]
4) Mark the position of the BD unit [1] with a scriber for later reference.
5) Remove the screw [2], and slide out the BD unit [1] to the front.
6) Disconnect the connector [1], and take out the BD unit [2].
[1]
7.4.2.2 Removing the BD Unit
/ iR85+ / iR8070
1) Remove the inside upper cover.
2) Remove the 3 screws [1], and disconnect the 2 connectors [2]; then,
remove the laser fan unit [3].
3) Slide out the process unit.
Chapter 7
[3] [1] [2]
[1]
F-7-22
[2] [1]
F-7-23
[2]
F-7-24
0008-9207
7-11