EPSON EPL-N3000/AcuLaser M4000N
Revision C
Troubleshooting
Troubleshooting When There is Error Display
74
Confidential
3.2.4 FAN Error
Table 3-7. Troubleshooting for “FAN Error”
Step
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
•
FAN MAIN
(p.293)
• FAN SUB
(p.241)
•
LVPS
(p.287)
•
HVPS/MCU
(p.301)
1
FAN MAIN
♦
Does the Fan operate when the main power is turned
on?
Go to Step 2
Go to Step 3
2
Operation of FAN SUB
♦
Does the FAN SUB operate when power is switched
on?
Go to Step 3
Go to Step 7
3
Power supply to FAN MAIN
♦
Is the FAN MAIN connected correctly and is the
voltage between P/J24-18
↔
P/J24-17 24 VDC (12
VDC at a half speed)?
Go to Step 4
Go to Step 5
4
FAN ALARM signal
♦
Is the voltage between P/J24-17
↔
P/J24-16 0.82
VDC or more?
Replace FAN
MAIN
Replace the
HVPS/MCU
5
FAN MAIN
1.
Replace the FAN MAIN.
(p.293)
♦
Does the FAN error occur when power is switched
on?
Go to Step 6
Problem
solved
6
LVPS
1.
Replace the LVPS.
(p.287)
♦
Does the FAN error occur when power is switched
on?
Replace the
HVPS/MCU
Problem
solved
7
Power supply to FAN SUB
♦
Is the FAN SUB connected correctly and is the
voltage between P/J27-19
↔
P/J27-18 24 VDC (12
VDC at a half speed)?
Go to Step 8
Go to Step 9
8
FAN ALARM signal
♦
Is the voltage between P/J27-18
↔
P/J27-17 0.82
VDC or more?
Replace FAN
SUB
Replace the
HVPS/MCU
9
FAN SUB
1. Replace the FAN SUB.
(p.241)
♦
Does the FAN error occur when power is switched
on?
Go to Step 10
Problem
solved
10
LVPS
1.
Replace the LVPS.
(p.287)
♦
Does the FAN error occur when power is switched
on?
Replace the
HVPS/MCU
Problem
solved
Table 3-7. Troubleshooting for “FAN Error”
Step
Action and Question
Yes
No
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 ...