User manual

98.05.08.09.00
Color LaserWriter 12/600 PS Troubleshooting 2–6
Verifying Printer Operation
To observe an operational engine, place the printer into the validation
state described below. (Refer to the Take Apart chapter for instructions
on performing the “First” procedures). The validation state is also the
point in reassembly where you should verify printer operation.
First Remove the top cover, left cover, rear cover, rear shield plate and fuser
access cover. Make sure that all consumables are installed correctly,
that the front door and pickup block door are closed, and that the sepa-
ration discharge assembly is down and resting just above the transfer
drum. Plug in the printer.
Now Defeat the fuser cover interlock by wedging the green cleaning brush
tool between the chassis and the actuator plate.
If you have a PowerBook computer with proper cabling, connect it to
either the LocalTalk port on the I/O controller board or the IOT
connector on the DC controller board (see “Diagnostic Utility” in this
chapter for more information).
Brush
Fuser Interlock
Defeated
Top Cover Removed
Fuser Access
Cover Removed
Separation Discharge
Assembly Down
Front Door Closed
Left Cover
Removed
Rear Cover and Rear
Shield Plate Removed
Note: Internal engine cabling is not shown for clarity.
IOT
Connector