High Capacity Feeder Symptom Service Checks - Lexmark W820 Service Manual

Step Actions and Questions
3 RESEAT
Disconnect then reconnect the High Capacity Feeder from the
printer.
Is the error code gone?
4 HIGH CAPACITY FEEDER PWB
Replace the
Is the error code gone?
5 MCU BOARD
Replace the printer Engine Board (MCU PWB). Go to the
Printer Service Manual for the Removal and Replacement
Procedure.
Is the error code gone?
6 The following High Capacity Feeder 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 these steps, replace each FRU or
troubleshoot each area listed below, one at a time, until you
isolate and solve the problem.
• Wiring and connectors linking the FRUs.

High Capacity Feeder Symptom Service Checks

Inoperative High Capacity Feeder
When you switch on the printer the Lift Motors do not raise the HCF trays into place, none
of the HCF feeders respond to feed commands from the printer, and the problem is not
identified by a displayed Error Code.
Step Actions and Questions
1 HCF OPERATION CHECK
Generate a printer test print from Tray 3, Tray 4, and Tray 5.
Does the printer generate a test print from Tray 3, Tray 4,
and Tray 5?
2 PRINTER OPERATION CHECK
Generate a printer test print fed from Tray 1 and Tray 2.
Does the printer generate a test print fed from both Tray 1
and Tray 2?
2-52
Service Manual
"HCF PWB" on page 4-66.
4025 Options
Yes No
Problem Go to step 4
solved
Problem Go to step 5
solved
Problem Go to step 6
solved
Yes No
Go to step 4 Go to step 2
Go to step 3 Go to the
printer
servicer
manual and
troubleshoot
an inoperative
printer