EPSON EPL-N3000/AcuLaser M4000N
Revision C
Troubleshooting
Troubleshooting for Individual Units
126
Confidential
3.4.16 HVPS/MCU
Table 3-75. Troubleshooting for HVPS/MCU
Step
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
• HVPS/MCU
(p.301)
• GUIDE ASSY CRU R
(p.257)
• Imaging Cartridge
• HARNESS ASSY ANT
• HARNESS ASSY LVPS
1
Power supply by GUIDE ASSY CRU R
1. Check to see if the GUIDE ASSY CRU R is
installed properly.
♦
Check if the GUIDE ASSY CRU R is installed
properly.
♦
Check if the GUIDE ASSY CRU R contacts with
the HVPS/MCU and the plate of the Imaging
Cartridge properly.
♦
Check if the HVPS/MCU is assembled to under the
hook of the FRAME.
Go to Step 2
Replace the
GUIDE ASSY
CRU R
2
GUIDE ASSY CRU R
1.
Remove the GUIDE ASSY CRU R.
(p.257)
2. Check the Plate Earth of the GUIDE ASSY CRU R.
♦
Is the Plate Earth free from deformation, dirt and
damage?
Go to Step 3
Replace the
GUIDE ASSY
CRU R
JG54A7AA
HOOK
Note1
3
24V power supply to the HVPS/MCU
1. Remove the Imaging Cartridge.
2. Measure the voltage between P/J10-1
↔
P/J10-4 on
the HVPS/MCU.
(Refer to
“Connectors
(p.406)”
)
♦
24V between P/J10-1
↔
P/J10-4?
Go to Step 5
Go to Step 4
4
Continuity of the HARNESS ASSY LVPS
1. Disconnect the connector P/J10 on the HVPS/MCU.
2. Disconnect the connector P/J42 on the LVPS.
3. Check continuity between P/J10
↔
P/J42.
♦
Is there continuity between P/J10
↔
P/J42?
Go to
3.4.1
LVPS
(p.111)
Replace the
HARNESS
ASSY LVPS
5
HARNESS ASSY ANT
1. Disconnect the connector P/J15 on the HVPS/MCU.
2. Check continuity between J15
↔
J150.
♦
Is there continuity between J15
↔
J150?
Replace the
HVPS/MCU
Replace the
HARNESS
ASSY ANT
Table 3-75. Troubleshooting for HVPS/MCU (continued)
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 ...