Problem | Possible Cause | Recommended Solution |
|---|---|---|
The control panel display shows a language that I cannot read | The language parameter was changed through the control panel or a firmware command. | 
|
The display is missing characters or parts of characters | The display may need replacing. | Call a service technician. |
Changes in parameter settings did not take effect | Some parameters are set incorrectly. |
|
A firmware command turned off the ability to change the parameter. | Refer to the Programming Guide for ZPL, ZBI, Set‑Get‑Do, Mirror, and WML or call a service technician. | |
A firmware command changed the parameter back to the previous setting. | ||
If the problem persists, there may be a problem with the main logic board. | Call a service technician. | |
Non-continuous labels are being treated as continuous labels. | The printer was not calibrated for the media being used. | Calibrate the printer. See Calibrating the Ribbon and Media Sensors. |
The printer is configured for continuous media. | Set the printer for the correct media type (gap/notch, continuous, or mark). See Media Type. | |
All indicator lights are on, nothing is on the display (if the printer has a display), and the printer locks up. | Internal electronic or firmware failure. | Call a service technician. |
The printer locks up while running the Power‑On Self Test. | Main logic board failure. | Call a service technician. |
