EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting
Rev.B 107
3.3.5 Inoperative Paper Feed Drive
Paper feed drive does not work. The problem is not identified by a
displayed Error Code.
Table 3-21. Inoperative Paper Feed Drive
Table 3-22. inoperative Paper Feed Drive
Step Actions and Questions Yes No
SUSPECT COMPONENTS
The followin
components are
associated with this specific problem.
One or more of these components ma
ou
cannot isolate the problem usin
this FIP,
replace each component listed below,
one at a time, until the problem
disappears.
• LVPS Assembl
• All paper path sensors
•Wirin
the
components.
1
MAIN DRIVE ASSEMBLY TEST
1. Remove all of the paper tra
s from the
printer.
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
Assembl
2
Is the problem with MSI feed?
Go to step 4 Go to step 3
3
TRAY 1 FEED CLUTCH TEST
While the Main Motor is runnin
under 8-
1, run Output Test 8-12 to actuate Tra
1
Feed Clutch.
Does the Feed Clutch actuate and do
the Feed Rolls rotate?
Go to step 5 Replace the
Tra
1 Feed
Clutch.
Step Actions and Questions Yes No
4
MSI FEED CLUTCH TEST
Does the MSI Feed Clutch actuate
and do the MSI Feed Rolls rotate?
Go to step 5 Replace the
MSI Feed
Clutch.
5
TEST PRINT STRESS TEST
1. Generate 100 to 200 Grid Test
Patterns.
2. Carefull
observe the Main Drive
Assembl
and Feed Clutches as the
test runs.
Does the test suddenly stop; without
any visible paper jam and without
any Error Code displayed?
Go to step 6 Treat as an
intermittent
6
NO PAPER SENSOR REPLACE-
MENT
1. Replace the No-Paper Sensor in the
paper tra
used in step 5
2. Generate 100 to 200 Grid Test
Patterns.
3. Carefull
observe the Main Drive
Assembl
and Feed Clutches as the
test runs.
Does the test suddenly stop; without
any visible paper jam and without
any Error Code displayed?
Replace the
MCU PWB.
Go to Suspect
Components
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