Instruction manual

Chapter 3 Troubleshooting Procedures

If printer does not print and the interface is RS-232, interchange the

wires to pins 2 and 3. (This is the most common cause of an

inoperative RS-232 cable.) Verify that the host and printer have the

same baud rate, number of data bits, number of stop bits, and parity.

Configure the host for XON/XOFF if possible, since this requires the

least complex cable.

4. Power up the printer. Send a print job from the host.

If the printer does not print from the host, replace the data and

interface cable assemblies.

5. Remove the paper path or pedestal top cover. Check all cable

connections on the CMX controller board.

Reseat all cable connectors on the CMX controller board.

6. Power up the printer. Send a print job from the host.

If the printer still does not print from the host, replace the CMX

controller board.

Printer does not print self tests

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

Disconnect the control panel cable from connector J110 on the CMX

controller board. Disconnect the control panel cable from the control

panel. Check continuity of the control panel cable assembly.

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

2. Connect the control panel cable assembly to J110 on the CMX controller

board and to the control panel. Load paper. Power on the printer. Run a

self test.

If the self test does not run, replace the control panel assembly.

3. Power on the printer. Run a self test.

If the self test does not run, replace the CMX controller board.

PRINTER HOT Message

NOTE: This message indicates internal temperatures over 60° Celsius (140°

Fahrenheit). Print jobs will not create such temperatures, so

immediately determine that the fans are operating and that all air

vents are unobstructed. It is crucial that the exhaust vents on the floor

of the cabinet remain unblocked, since hot air from inside the printer

is vented through the cabinet floor. Nothing must be stored under the

printer. Then check the operating environment. A severe environment

is one with an ambient temperature at or above 40° Celsius (104°

Fahrenheit) or is dirty enough to create blockage of the cabinet fan

vents. The printer must never be run at ambient temperatures greater

than 40° Celsius (104° Fahrenheit). If the printer is located in such an

environment, relocate it to a cooler, cleaner area.

1. CMX controller board sensors report high temperatures on the board.

Inspect printer environment for severity. (See NOTE above.)

Advise the user to move the printer to cooler, cleaner location.