User`s guide

Flowcharts and TablesTroubleshooting

Troubleshooting Tables

Important

As you proceed through the steps in a table, remember to retry the printer each

time you change its physical state–for example, when you replace a module. If

the problem remains, reinstall the original module before proceeding to the

next step in the table. Refer as necessary to the wiring diagram that follows the

tables

Table 1. The Power Supply Fan Does Not Come On When You

Switch On the Printer

Step Check Result Action

1 Does the power supply

fan come on when you

turn on the printer?

Ye s

Remove the rear panel, I/O board,

and I/O shield, and restart the printer.

The problem is probably with the

power supply fan or its connection to

the DC controller board. Run the

printer diagnostic. If the diagnostic

suggests a fan problem, see Table 9.

2 Do any of the motors

rotate after the printer

starts up?

Ye s

Check the connections at J213 and

J214 on the DC controller board, and

check that nothing physical is blocking

the fan blades. If the problem persists,

replace the DC controller board.

Make sure J103 is connected at the

power supply. If TB201 is detached

from the DC controller, replace the DC

controller board; otherwise, replace

the power supply. If the problem

persists, replace the DC controller

board.