Garmin DTC300 Diagnosing Image Problems, Resolving the Pixel Failure problems, Sample image below

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Diagnosing Image Problems

Resolving the Pixel Failure problems

All Troubleshooting procedures assume that only factory-authorized supplies are in use in the Printer.

Step	Procedure
1	Review the following information.
	• Symptom: A thin line or scratch travels the entire length of the card (See
	sample image below).
	• Printer Error State: None
	• LCD Error Display: None
	• Driver Monitor Error Display: None
2	Check the card stock for scratches. Replace the cards (as needed).
3	Examine the Printhead for visible damage.
4	Clean the Printhead. See the Cleaning the Printhead procedure.
5	Replace the Printhead if the problem persists. See Replacing the Printhead
	Assembly (D900023).

DTC400/DTC300/DTC300M Card Printer User Guide (Rev. 1.1) 4-38