Xerox DOCUPRINT N4525 Service Quick Reference Manual page 243

Table 4-7 Inoperative Envelope Feeder
Step Actions and Questions
11 DRIVE BELT INSPECTION
1. Remove the Envelope Bottom Cover (RRP 4-2).
2. Remove the Envelope Top Cover (RRP 4-3).
3. Remove the Envelope Rear Cover (RRP 4-5).
4. Reinstall the coverless Envelope Feeder onto the
printer.
5. Switch on the printer power.
6. Enter Diagnostics / Mode
7. From the Main Menu, select Comp Output Test /
MBF/ENV Unit / Env Motor
8. Press [4] to start, [0] to stop.
9. Observe the gears are driven by the Envelope Motor.
Are any of the drive gears not rotating?
12 ENVELOPE FEED CLUTCH REPLACEMENT
Replace the Envelope Feed Clutch (RRP 4-14).
Does the Envelope Feeder function normally?
13 The following printer components and areas are
associated with this specific problem. One or more of
these components or areas may have failed partially or
completely. If you cannot isolate this problem using the
steps in this Repair Analysis Procedures, replace each
component or troubleshoot each area listed below, one
at a time, until you isolate and solve the problem.
Wiring and connectors linking the components.


Volume 4 / Envelope Feeder - Troubleshooting
Yes No
Replace the Go to step
problem 12
gears. (PL
16.2)
Problem Go to step
solved 13
4-575