Epson EPL-N4000, Service Manual

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EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting
Rev.B 109
3.3.8 Inoperative Offset
The Offset function does not work or does not work correctly.
Table 3-25. Inoperative Offset
Table 3-26. Inoperative Offset
Step Actions and Questions Yes No
SUSPECT COMPONENTS
The following components are
associated with this specific problem.
One or more of these components may
have failed partially or completely. If you
cannot isolate the problem using this FIP,
replace each component listed below,
one at a time, until the problem
disappears.
• Wiring and connectors linking the
components.
• LVPS Assembly
1 MAIN DRIVE ASSEMBLY INSPECTION
1. Remove the Rear Cover Assembly
Does the Main Motor run and do the
gears of the Drive Assembly rotate
normally?
Go to step 2 Go to FIP
Inoperative
Main Drive
Assembly
2 EXIT DRIVE TEST
1. Remove the Fuser Full Cover.
Does the Exit Motor run forward
during 10-6 and reverse during 10-7?
Go to step 3 Replace the
Exit Drive
Assembly.
Step Actions and Questions Yes No
3 OFFSET TEST
Does the Offset Roll shift away from
the Exit Motor during 10-6 and
toward the Motor during 10-7?
Go to step 4 Replace the
Offset Unit
Assembly.
4
MCU PWB REPLACEMENT
Replace the MCU PWB
Does Offset work correctly?
Problem
solved Go to Suspect
Components