Instruction manual

Chapter 3 Troubleshooting Procedures

Cycle power. Run the print job again. If the message appears,

download the emulation software again (page 130).

2. Cycle power. Run the print job again.

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

the message and return it with defective CMX board.

ACTIVATE LOST Message

1. The printer detects a twinax protocol communication error and reports the

error. Power off the printer. Disconnect the AC power cord from the

printer. Check the twinax host data cable and twinax I/O cable connection

at the expansion-CT board.

Reseat the twinax host data cable connection and the twinax I/O

cable connection at the expansion-CT board.

2. Disconnect the twinax auto-termination cable from the printer. Test the

cable for the resistances shown in the Main Wire Harness Test Tables in

Appendix A.

If resistances are not correct, replace the twinax auto-termination

cable.

3. Connect the power cord to the printer. Power on the printer. Send a print

job to the printer.

If the message appears, replace the twinax cable.

4. Send a print job to the printer.

If the message appears, go to Communications Failures, page 88.

A TO D OVERRUN* Message

1. Analog to Digital Overrun. The analog-to-digital converter overflowed.

Cycle power. Run the print job again. If the message appears,

replace the CMX controller board. Record the message and return it

with defective CMX board.

Black squares on control panel display

1. Power off the printer. Remove the paper path or pedestal top cover.

Disconnect the control panel cable from the panel and from J110 on the

CMX controller board. Check continuity of the cable. (See Appendix A.)

Replace the control panel cable if it fails continuity test. Connect the

cable. Power on the printer. If the symptom appears, replace the

control panel.

2. If the printer has the expansion-CT board, check the adapter connection

to the CMX controller board.

Make sure the 60-pin expansion adapter is correctly seated in the

CMX controller board connector J111 and the expansion-CT board.

3. Power off the printer. Make sure the flash memory is seated properly in

J10 and J11 on the CMX controller board. Regardless of memory

configuration, J11 must be used.