Lexmark Optra E 4026-0 Series Reference Handbook page 141

Other Malfunction Symptom Table (Continued)
Symptom
No Paper Pick-Up from Envelope
Feeder
Poor Output from High-Voltage
Power Supply
Power Supply Fan (FM1) Failure
Registration Roller Does Not Rotate
Printhead/Scanner Motor Malfunction
Operator Panel Does Not Operate
Properly
No Side Output Bin Operation
6-14
Laser Printer Reference Handbook
Action
Refer to "Paper Pick-Up from
Envelope Feeder Service Check" in
the Service Manual.
Refer to "High-Voltage Power Supply
Output Service Check" in the Service
Manual.
Refer to "Fan Motor Service Check
(927)" in the Service Manual.
Refer to "Registration Roller Service
Check" in the Service Manual.
Refer to "Printhead/Scanner Motor
Service Check" in the Service
Manual.
Go to the Diagnostic Aids Chapter
and run the LCD and Button tests. If
the tests fail, replace the operator
panel. If the display has diamonds on
it or is blank, run the basic engine
test. If the test completes and the
panel remains blank, replace the
operator panel. If diamonds remain,
replace the controller card.
If your machine beeps 5 times and
the screen is blank or all diamonds,
replace the operator panel.
Check and replace the face-up
solenoid assembly parts. Replace the
face-up solenoid if necessary.