EPSON EPL-N3000/AcuLaser M4000N
Revision C
Troubleshooting
Troubleshooting When There is Error Display
73
Confidential
3.2.1 NVRAM Error
Note "*1" : The cause is considered to be external noises. To make sure, however, go to
“3.4.17
Electrical Noise
(p.127)”
and perform the specified checking.
3.2.2 ROS Error
3.2.3 Fuser Error
Table 3-4. Troubleshooting for “NVRAM Error”
Step
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
•
HVPS/MCU
(p.301)
1
1. Turn on the main power.
♦
Does the error occur?
Go to Step 4
Go to Step 2
2
1. Turn on the main power again.
♦
Does the error occur?
Go to Step 4
Go to Step 3
3
1. Repeat turning on and off the main power several
times.
♦
Does the error occur?
Go to Step 4
Problem
solved*
1
4
1. Replace the HVPS/MCU.
♦
Does the error occur?
Go to
3.4.17
Electrical
Noise
(p.127)
Problem
solved
Table 3-5. Troubleshooting for “ROS Error”
Step
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
•
ROS ASSY
(p.239)
•
HVPS/MCU
(p.301)
• Imaging Cartridge
• HARNESS ASSY ROS
•
LVPS
(p.287)
1
ROS ASSY
♦
Go to
3.4.3 ROS ASSY
(p.113)
—
—
Table 3-6. Troubleshooting for “Fuser Error”
Step
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
•
FUSER ASSY
(p.253)
•
HVPS/MCU
(p.301)
•
LVPS
(p.287)
•
HARNESS ASSY FUSER
(p.251)
• HARNESS ASSY LVPS
1
Thermistor
1. Turn on the main power.
2. Observe whether the error display appears
immediately at power on or just after short warming
up.
♦
Does the error occur immediately at power on?
Replace the
FUSER ASSY
Go to
3.4.4
FUSER ASSY
(p.115)
Summary of Contents for AcuLaser M4000N
Page 19: ...Confidential C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 33: ...Confidential C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 63: ...Confidential C H A P T E R 3 TROUBLESHOOTING ...
Page 160: ...Confidential C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Page 396: ...Confidential C H A P T E R 5 ADJUSTMENT ...
Page 404: ...Confidential C H A P T E R 6 MAINTENANCE ...