Appendix A - Troubleshooting

Problem

 

Solution or Reason

POWER indicator does not

 

 

light GREEN when power

1.

Check power connections from A.C.

switch is turned to ON (1)

 

outlet to power supply to printer.

position.

 

 

POWER indicator lights

1.

Check interface cable connections from

GREEN, but printer will not

 

computer to printer.

print.

 

 

 

 

1.

Verify that the labels are the correct

 

 

type (direct thermal).

Printer appears to be

2.

Check that the roll is loaded with the di-

working (media is being fed

 

rect thermal side facing up.

out), but nothing is printed.

3.

Clean the print head with cleaning pen.

 

4.

For TLP models, check that the ribbon is

 

 

properly installed.

Printing is faded or poor

1.

Clean the print head with cleaning pen.

quality.

2.

Adjust print speed/darkness in software.

 

1.

Perform AutoSense gap sensor

 

 

adjustment on page 13.

Prints only partial label or

2.

Label caught on print head.

3.

Print head is not properly latched.

skips a label.

4.

Possible software problem. Check the

 

 

 

printer memory configuration. Refer to

 

 

the EPL2 Programming manual.

 

1.

Perform AutoSense gap sensor adjust-

 

 

ment on page 13.

 

2.

Possible problem with label stock. Use

Printing stops and POWER

 

only approved labels and tags.

indicator lights ORANGE or

3.

Possible label jam.

RED.

4.

Insufficient memory for label size. Check

 

 

the printer memory configuration.

 

5.

Possible software problem. Refer to the

 

 

EPL2 Programming manual.

 

 

 

980344-001 Rev.A

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Zebra Technologies 2722, 2742, 3742 user manual Appendix a Troubleshooting, Red