Lexmark 4059-XXX manual Parallel Port Service Check, Printhead Service Check

4059-XXX

Parallel Port Service Check

Run the “Parallel Wrap Test” on page 3-11 .

Note: The Parallel Wrap Test is designed to check the parallel port hardware by using a wrap plug (P/N 1319128) and invoking the Parallel Diagnostic Test. This test helps isolate the printer from the parallel cable and host. The test provides failure information on the display for approximately 3 seconds. If the test indicates that a problem is detected, replace the controller board.

Printhead Service Check

The printhead assembly does not contain any service replaceable parts or components. If service error code 930 displays, the wrong printhead is installed in the printer.

	Service Error Code	Explanation
1	Error Code 931	These errors usually indicate a
	No first HYSNC Signal	failure in the HYSNC signal to the
	Error Code 932	printhead. Check the continuity of
	Lost HYSNC	the cables connected to J3 and J8
		on the engine board. If incorrect,
		replace the defective cable. The
		voltage at J8-4 measures
		approximately +5 V dc. If incorrect,
		replace the engine board. The
		voltage at J3-7 measures
		approximately +24 V dc. If incorrect,
		replace the engine board. If correct,
		replace the printhead assembly.

2-894059 Service Manual