Specifications

Flowcharts and TablesTroubleshooting

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. Main Motor Failure

Step Check Result Action

1 Is connector P14 on the DC

controller board making

good contact?

No Reconnect P14 to the DC controller

board.

2 Are there any obstructions

in the drive assembly gear

train or paper path?

Yes Remove the obstructions.

3 Inspect the drive assembly

gear train and replace any

damaged gears. (Check the

gears on the drive

assembly, the paper feed

roller, and the cassette

feeder assembly.) Does the

problem persist?

No Problem solved.

4 Switch off the printer and

connect a multimeter

between each of the

following pairs of pins:

• P14-1 (A-COM 24V)

and P11-2 (GND)

• P14-2 (B-COM 24V)

and P11-2 (GND)

Does the voltage measure

approximately +24 VDC

when you switch on the

printer?

No Go to Table 11, Power Supply Failure

(+24 VDC).