Epson EPL-N4000 - Troubleshooting; Service Flowchart

EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting
Rev.B 90
3.1 Troubleshooting
3.1.1 Service Flowchart
To use the Service Flowchart, start at Block 1 to identify the problem.
After you have identified the problem, return to the Service Flowchart
and proceed to Block 2 where you inspect and clean the printer (a
throu
g
h cleanin
g
frequently solves many printer problems). You
continue down the Flowchart, in this manner, always returnin
g
to the
next block in the Service Flowchart after you have completed the tasks
outlined in the current block.
If you
choose not to use the Service Flowchart, we recommend that
you start at the appropriate Fault Isolation Procedure (FIP) Flowchart
and proceed from there. In many cases, merely replacing the Print
Cartridge with a new one could solve the printer
problem.
Table 3-1. Service Flowchart
*
Block Procedure
1 • Identif
y
the problem.
1. Vertif
y
that the reported problem does exit.
2. Check for an
y
error codes or messa
g
es.
3. Print three test prints.
4. Make note of an
y
print qualit
y
problems in the test prints.
5. Make note of an
y
mechanical or electrical abnormalities present.
6. Make note of an
y
unusual noise or smell comin
g
from the printer.
2 • Inspect and Clean the printer.
1. Switch Off printer power.
2. Disconnect the AC power cord from the wall outlet.
3. Remove the EP Cartrid
g
e and shield it from stron
g
li
g
ht.
4. Inspect the printer interior and remove an
y
forei
g
n matter such as
paper clips, staples, pieces of paper, paper dust or toner.
5. Clean the printer interior with a lint-free cloth, dampered sli
g
htl
y
with cold water. Do not use solvents or chemical cleaners to clean
the printer interior. Do not use an
y
t
y
pe of oil or lubricant on
printer parts.
6. Clean all rubber rollers with a lint-free cloth that is dampened
sli
g
htl
y
with cold water. Use a clean, dr
y
, lint-free cloth to dr
y
the
rollers.
7. Clean the ROS window with a soft, dr
y
, lint-free cloth.
8. Use canned air to clean the BTR.
Do not touch the BTR with
y
our fin
g
ers.
Do not use a brush or damp cloth to clean the BTR.
9. While
y
ou are cleanin
g
, inspect the interior of the printer for
dama
g
ed wires, loose connections, toner leaka
g
e, and worn or
dama
g
ed parts.
10.If the EP Cartrid
g
e appears excessivel
y
dirt
y
or obviousl
y
dama
g
ed, replace it with a new one.