Instruction manual

Chapter 3 Troubleshooting Procedures

5. Inspect vents and fan airways for obstructions. Look underneath cabinet

models for items blocking the cabinet exhaust vents.

Remove any obstructions from vents and airways.

6. Install paper path or pedestal top cover. Load paper. Power on the printer.

Run the “All E’s” print test for 5-10 minutes.

If the message appears, replace the CMX controller board. Record

the message and return it with defective CMX board.

Printer does not detect presence of power stacker

—or—

Stacker not operating

1. Check that the power stacker is enabled under the Printer Control menu.

(Refer to the

Setup Guide.)

Enable the power stacker under the Printer Control menu. If the

power stacker enable/disable option does not appear in the menu, go

to the next step.

2. Open the rear cabinet door. Check that the ON/OFF indicator lamp is lit.

If the ON/OFF indicator is not lit, go to step 3.

If the ON/OFF indicator is lit, press the ON LINE key and check that

the ON LINE indicator lights. If the ON LINE indicator comes on, the

stacker is detected by the printer. If the ON LINE indicator does not

come on, go to step 4.

3. a) Power off the printer.

b) Unfasten the cable clamp holding the stacker control panel cables.

c) Disconnect the stacker power cable from the back of the stacker

control panel. (See Figure 59, page 313.)

d) Locate pin 1 of connector P106. (See the cable assembly drawing in

Appendix A.)

e) Power on the printer.

f) At connector P106 check for +48 volts DC between pins 1 and 2 and +5

volts DC between pins 3 and 4.

If the voltages are correct, replace the stacker control panel. If the

voltages are not correct, power off the printer, remove the paper path,

and disconnect the stacker power cable from the CMX controller

board. (See Figure 64, page 318.) Check the continuity of the stacker

power cable between P105 and P106. If the cable fails the continuity

test, replace it. If the cable is OK, replace the CMX controller board.

4. Power off the printer. Remove the paper path. Disconnect stacker cables

from the CMX controller board, stacker assembly, and the stacker control

panel (see Figure 59, page 313). Check cables for cuts, breaks, or

damaged pins. Check continuity of cables. (See Appendix A.)

Replace any cable that is damaged or fails continuity test. Reconnect

all stacker cables to the CMX controller board, stacker, and stacker

control panel.

5. Power on the printer. Check that the ON LINE indicator lights on the

stacker control panel.