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 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.
• Fuser Assembly
1
TEMPERATURE SENSORS
1. Unplug J292 from P/J291.
2. Check the continuity between the two
black wires on J292 (Leading to the
Sensor Assembly Temperature).
3. Check the continuity between the two
white wires on J292 (leading to the
Sensor Assembly 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
Assembly
Temperature.
2
HEATER LAMP CIRCUIT
1. Unplug the AC power cord from the
AC wall outlet.
2. Unplug J11 from the HPS.
3. Check the continuity between the two
wires on J11.
Is there continuity (approximately 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 continuity between the two
ends of the Heat Rod.
Is there continuity (approximately 2.5
Ω
)
between the two ends of the Heat Lamp?
Go to step 4.
Replace the
Heater Lamp.
4
FUSE
Check the continuity between the two
ends of the Fuse.
Is there continuity (0
Ω
) between the two
ends of the Fuse?
Go to step 5.
Replace the
Fuse
5
THERMOSTAT
Check the continuity between the two
ends of the Thermostat.
Is there continuity (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
during a previous step.
2. Switch ON printer power.
3. Check the voltage between the two
wires on P/J11.
Is there 90~132VAC (110VAC model) or
198~264VAC (220VAC model) even
momentarily 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
Summary of Contents for EPL-N1600 Option
Page 1: ...EPSONEPL N1600 A4 Network Laser Printer 4009770 ...
Page 13: ... PRODUCTDESCRIPTION ...
Page 36: ... OPERATINGPRINCIPLES ...
Page 50: ...EPSON EPL N1600 Chapter 2 Operating Principles Rev A 51 ...
Page 55: ... TROUBLESHOOTING ...
Page 97: ... DISASSEMBLYANDASSEMBLY ...
Page 161: ... ADJUSTMENT ...
Page 163: ... MAINTENANCE ...
Page 165: ... APPENDIX ...
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Page 201: ...EPSON EPL N1600 Chapter 7 Appendix Rev A 203 MCU 1 2 Holder Electrical 3 4 PWBA Hotaru ...
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Page 203: ...EPSON EPL N1600 Chapter 7 Appendix Rev A 205 CONTROLLER 1 Controller Assembly C258MAIN BOARD ...
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