Lexmark M410 Service Manual - Page 62

Printhead Service Check, Service Manual

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4045-XXX Printhead Service Check The printhead assembly does not contain any service replaceable parts or components. Service Error Code 1 Error Code 931 No first HYSNC Signal Error Code 932 Lost HYSNC 2 Error Code 935 Mirror Motor unable to reach operating speed Explanation These errors usually indicate a failure in the HYSNC signal to the printhead. Check the continuity of the cable connected to J5 on the engine board. If incorrect, replace the defective cable. The voltage at J5-6 measures approximately +5 V dc. If incorrect, replace the engine board. If correct, replace the printhead assembly. These error codes indicate a problem with the mirror motor circuit in the printhead assembly or the mirror motor cable to the engine board cable or engine board assembly. Check the continuity of the mirror motor cable connected to J8 on the engine board. If incorrect, replace the cable. The voltage at J8-5 measures approximately +24 V dc. If incorrect, replace the engine board. If correct, replace the FRUs in the following order: printhead assembly engine board 2-36 Service Manual

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2-36
Service Manual
4045-XXX
Printhead Service Check
The printhead assembly does not contain any service replaceable
parts or components.
Service Error Code
Explanation
1
Error Code 931
No first HYSNC Signal
Error Code 932
Lost HYSNC
These errors usually indicate a
failure in the HYSNC signal to the
printhead. Check the continuity of
the cable connected to J5 on the
engine board. If incorrect, replace
the defective cable. The voltage at
J5-6 measures approximately +5 V
dc. If incorrect, replace the engine
board. If correct, replace the
printhead assembly.
2
Error Code 935
Mirror Motor unable to
reach operating speed
These error codes indicate a
problem with the mirror motor circuit
in the printhead assembly or the
mirror motor cable to the engine
board cable or engine board
assembly. Check the continuity of
the mirror motor cable connected to
J8 on the engine board. If incorrect,
replace the cable. The voltage at
J8-5 measures approximately
+24 V dc. If incorrect, replace the
engine board. If correct, replace the
FRUs in the following order:
printhead assembly
engine board