Lexmark Optra 4049 Series, Service Manual

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Diagnostic Information 2-14
4049-XXX
conductor drum. Check the condition of each HVPS contact and
make sure they spring back when pressed. Check the continuity of
the HVPS cable. Make sure the following voltages are correct; if they
are not, replace the engine board.
Run the Print Test with the RIP Board removed. Make the following
voltage checks while printing and again while idling. If the voltages
are not correct, replace the engine board.
If no other trouble is found replace the HVPS.
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Inspect the printhead shutter for proper operation and make sure the
actuator on top of the cartridge is present and extends into the print-
head shroud when the printer top cover is closed. A failed printhead
will cause a 931 Service error rather than blank output.
Check the continuity of the HVPS cable. The HVPS and transfer roll
contacts should be clean and spring back when pressed. Make sure
the transfer roll contact under the left bearing is making contact with
the HVPS.
Connector Voltage
J13-5 to J13-4 +24 VDC
J13-6 to J13-4 +24 VDC
Connector
Voltage while
Printing Voltage while
Idling
J13-1 to J13-4 +4.5 VDC 0 VDC
J13-2 to J13-4 +4 VDC 0 VDC