Lexmark 4076-0XX manual Print Quality Service Check, Fru Or Procedure, Action

4076-0XX

Print Quality Service Check

	FRU OR PROCEDURE	ACTION
1	Print Cartridge	Be sure the machine has a known
		good print cartridge.
2 Print Head Carrier Assembly		Reseat the print head cable in the
		system board and check the following
		parts for wear or damage:
		Print Cartridge Latch
		Latch Spring
		Carrier
3	Purge Test	Perform the “Purge Test” on page 25 .
		Look for a break in the diagonal line
		at the bottom of the test pattern. A
		broken line indicates one or more
		print nozzles are not working. Run the
		test again to verify the failure If there
		are even breaks in the diagonal line
		similar to the pattern shown below,
		replace the system board.

If there is a single break or random breaks in the diagonal line check the following:

•Print head cable - check the gold- plated contacts on the end of the cable that connects to the carrier for dirt and wear. Use only a clean dry cloth to clean the contacts. Also check the cable for damage. You may need to remove the cable from the carrier to inspect it.

•Rubber Backer - a worn rubber backer will result in poor contact

between the print head cable and the print cartridge. Check the rub- ber backer for wear

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