Envelope Feeder Symptom Service Checks - Lexmark W820 Service Manual

Step Actions and Questions
6 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 chart, replace each FRU or
troubleshoot each area, one at a time, until you isolate and
solve the problem.
•
Wiring and connectors linking the FRUs
•
Envelope Feeder Option - Go to
page 2-2.
•
MCU PWB - Go to the Printer Service Manual for the
Removal and Replacement Procedure.
•
I/O PWB - Go to the Printer Service Manual for the Removal
and Replacement Procedure.

Envelope Feeder Symptom Service Checks

Inoperative Envelope Feeder
The Envelope Feeder does not function, the Envelope Motor does not switch on, and the
problem is not identified by a displayed Error Code.
Step Actions and Questions
1 ENVELOPE FEEDER CONNECTION INSPECTION
Remove the Envelope Feeder from the Base Engine.
Inspect the P/J that connects the Feeder to the Base Engine.
Is the P/J free of damage, loose wires, and damaged or
missing pins?
2 ENVELOPE FEED TEST
Enter Diagnostic Mode, Input Tray Test, Envelope.
Load envelopes and select "Single."
A single envelope should feed and exit into the standard bin.
Did a single envelope feed?
3 +24VDC CHECK
Measure the voltage between P/J700-7 and P/J700-12 on the
Envelope PWB.
Is there +24VDC between P/J700-7 and P/J700-12?
4025 Options
"Envelope Feeder" on
Yes No
Yes No
Go to step 2 Replace or
repair the
connector
Problem Go to step 3
solved
Replace the Use the Block
Envelope Diagrams in
Feeder Option the printer
service
Manual to
troubleshoot a
loss of
+24VDC from
the MCU
PWB
Diagnostic Information
2-7