Lexmark Optra Color 40, Service Manual

Page: 27 / 95

Diagnostic Information
2-9
4092-010
Options Service Check
DRAM Memory Option SIMM
There is DRAM resident on the Controller Board and DRAM on the
Memory Option SIMM. Check to see that the Memory Option SIMM
is correctly installed and not borken or damaged. Run the
“DRAM
Test” on page 3-5 . If the test fails, replace the Controller Board. If
the test runs successfully, replace the DRAM Memory Option SIMM.
Paper Feed Service Check
If your printer does not have paper jam problems, continue with the
service check. If your printer does have a paper jam problem,
examine it for the following before you begin the service check:
•
Check the entire paper path for obstructions.
•
Be sure there is not too much paper in the sheet feeder.
•
Be sure the correct type of paper is being used.
•
Check for static in the paper.
Perform the “Print Test Page” on page 3-2 . Look at the paper test
result. A number greater than 2500 indicates binds or high friction in
the pick or feed mechanism.
Check for things that would slow the movement of the paper
between the time the paper is picked and the time the paper
activates the EOF sensor.
FRU Action
1 Engine Board With J5 disconnected and power on, check for
+30 V dc between J5-1 and ground, and between
J5-3 and ground on the engine board. If the
voltage is not present, check for motor pins
shorted to the motor housing. If you find a shorted
pin, replace the motor. If you still have a failure
after replacing the motor, replace the engine
board.