EPSON EPL-N1600 Chapter 3 Troubleshooting
Rev. A 69
1.3 SERVICE REQ E0003
The Fuser Assy. is defective.
Step Actions and Questions Yes No
SUSPECT COMPONENTS
The followin
components are
associated with this specific problem.
One or more of these components ma
have failed partiall
or completel
. If
ou
cannot isolate the problem usin
this
FIP, replace each component listed
below, one at a time, until the problem
disappears.
• Fuser Assembl
1
TEMPERATURE SENSORS
1. Unplu
J292 from P/J291.
2. Check the continuit
between the two
black wires on J292 (Leadin
to the
Sensor Assembl
Temperature).
3. Check the continuit
between the two
white wires on J292 (leadin
to the
Sensor Assembl
Temperature).
Are there a few hundreds ohms between
the two black wires and between the two
white wires on J292?
Go to step 2. Replace the
Sensor
Assembl
Temperature.
2
HEATER LAMP CIRCUIT
1. Unplu
the AC power cord from the
AC wall outlet.
2. Unplu
J11 from the HPS.
3. Check the continuit
between the two
wires on J11.
Is
there continuit
(approximatel
2.5
Ω
)
between the two wires on J11?
Go to step 6. Go to step 3.
3
HEAT LAMP
1. Remove the Heater Lamp.
2. Check the continuit
between the two
ends of the Heat Rod.
Is there continuit
(approximatel
2.5
Ω
)
between the two ends of the Heat Lamp?
Go to step 4. Replace the
Heater Lamp.
4
FUSE
Check the continuit
between the two
ends of the Fuse.
Is there continuit
(0
Ω
) between the two
ends of the Fuse?
Go to step 5. Replace the
Fuse
5
THERMOSTAT
Check the continuit
between the two
ends of the Thermostat.
Is there continuit
(0~2
Ω
) between the
two ends of the Thermostat?
Go to step 6. Replace the
Thermostat.
6
HEATER LAMP POWER SUPPLY
1. Reinstall the Fuser, if it was removed
durin
a previous step.
2. Switch ON printer power.
3. Check the volta
e between the two
wires on P/J11.
Is there 90~132VAC (110VAC model) or
198~264VAC (220VAC model) even
momentaril
between the two wires on P/
J11 before the U4 code appears?
Replace
C258MAIN
BOARD.
Replace the
HPS with new
one.
Step Actions and Questions Yes No
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