Datamax ?-class series Maintenance Manual page 48

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Troubleshooting
Fault Messages (continued)
Description
Consistently low sensor
readings were detected.
Consistently high sensor
readings were detected.
Thermal transfer printing
is enabled, but no or only
sporadic movement of
the ribbon supply hub
has been detected.
3-8
Possible Solution(s)
Press any key to continue.
1) Ensure that the reflective mark was
inserted facedown in the media sensor
during the appropriate calibration step.
2) Ensure that the reflective mark is made
of carbon-based ink.
3) Ensure that the sensor is free of debris.
4) Retry calibration. If the problem
persists, try 'Advanced Entry
Calibration'; see Section 2.3.2.3.
Press any key to continue.
1) Ensure that the reflective mark was
inserted facedown in the media sensor
during the appropriate calibration step.
2) Ensure that the reflective mark is made
of carbon-based ink.
3) Ensure that the sensor is free of debris.
4) Retry calibration. If the problem
persists, replace the media sensor; see
Section 4.6.
1) Ensure that ribbon is correctly loaded
and that the printhead is locked down.
2) Check the ribbon supply and take-up
hubs for obstructions that could inhibit
movement.
3) Ensure that the core of the ribbon
supply fits snugly onto the ribbon
supply hub.
4) Ensure the media/paper combination is
correct.
5) Possible defective timing disk (on
back of the Ribbon Supply Hub); see
Section 4.9.
6) Possible defective sensor or main logic
board; see Section 4.4.