Lexmark W820 Service Manual page 95

Error Code 232
There is a paper jam between the Face Up Exit Sensor and
the Duplex Wait Sensor.
Logic Control on the MCU PWB sensed that the Duplex Wait Sensor did not actuate
within the specified time after the Face Up Exit Sensor was actuated.
Step Actions and Questions
1 PAPER INSPECTION
Inspect the paper that is loaded in the paper cassette.
Is the paper that is loaded in the cassette wrinkled or
damaged?
2 PAPER PATH INSPECTION
Open the Inner Chute and observe the location of the jammed
sheet of paper.
Did the paper actuate the Wait Sensor?
3 DUPLEX WAIT SENSOR TEST
Enter Diagnostic Mode, select Duplex Wait Sensor.
Insert, then remove, a sheet of paper into the Duplex Wait
Sensor.
Does the Control Panel LCD change between OP and CL
as you insert then remove the paper?
4 DUPLEX WAIT CLUTCH TEST
Enter Diagnostic Mode, select Duplex Quick Test.
You can hear and see the clutch "pick" (energize) and the Exit
Roll shaft rotate when the clutch engages.
Does the Wait Clutch actuate and does the Exit Roll rotate
during the Quick Test?
5 EXIT ROLL OBSERVATION
When performing step 4, does the Exit Roll drive the sheet
of paper into the Wait Sensor actuator?
6 MCU PWB REPLACEMENT
Replace the printer Engine Board (MCU PWB). Go to the
printer service manual for the Removal and Replacement
Procedure.
Does the error code appear?
7 The following printer FRUs and areas are associated with this
specific problem. One or more of these FRUs or areas may
have failed partially or completely. If you cannot isolate this
problem using the steps in this service check, replace each
FRU or troubleshoot each area, one at a time, until you isolate
and solve the problem.
•
Wiring and connectors linking the FRUs
•
I/O PWB - Go to the Printer Service Manual for the Removal
and Replacement Procedure.
4025 Options
Yes No
Replace the Go to step 2
paper with
new paper
Go to step 3 Go to step 4
Replace the Replace the
"Duplex "Duplex Wait
PWB and Sensor" on
Bracket" on page 4-14
page 4-7
Go to step 5 Replace the
"Duplex Wait
Clutch" on
page 4-8
Go to step 6 Replace the
"Exit Roll"
on page 4-12
Go to step 7 Problem
solved
Diagnostic Information
2-13