EPSON EPL-N3000/AcuLaser M4000N
Revision C
Troubleshooting
Troubleshooting When There is Error Display
98
Confidential
3.2.37 No Recognition of Option OCT
3.2.38 Engine Communication Error
This error is in communication between the main control circuit and the engine control
circuit.
Table 3-40. Troubleshooting for “No Recognition of Option OCT”
Step
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
• HVPS/MCU
(p.301)
• HARNESS ASSY OCT1
• PWBA OCT
(p.368)
• HARNESS ASSY OCT2
1
Option OCT detection signal (1)
1. Disconnect P/J 70 on the PWBA OCT.
♦
Is the voltage between J70-5
↔
P/J70-6 of the
HARNESS ASSY OCT2 3.3 VDC?
Go to Step 4
Go to Step 2
2
Option OCT detection signal (2)
♦
Is the voltage between P/J30-4
↔
P/J30-3 on the
HVPS/MCU 3.3 VDC?
Go to Step 3
Replace the
HVPS/MCU
3
Continuity of HARNESS ASSY OCT2
1. Disconnect the HARNESS ASSY OCT2.
♦
Is there normal continuity between J70
↔
J3070?
Go to Step 4
Replace the
HARNESS
ASSY OCT2
4
Continuity of HARNESS ASSY OCT1
1. Disconnect the HARNESS ASSY OCT1.
♦
Is there normal continuity between J30
↔
J3070?
Go to Step 5
Replace the
HARNESS
ASSY OCT1
5
PWBA OCT
1.
Replace the PWBA OCT.
(p.368)
.
♦
After the PWBA OCT is replaced with a new one,
does the problem still occur?
Replace the
HVPS/MCU
Problem
solved
Table 3-41. Troubleshooting for “Engine Communication 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)
•
BOARD ASSY., MAIN
(p.299)
1
HVPS/MCU
1.
Replace the HVPS/MCU.
(p.301)
♦
Dose the problem still occur?
Go to
3.4.17
Electrical
Noise
(p.127)
Replace the
BOARD
ASSY.,
MAIN.
Содержание AcuLaser M4000N
Страница 1: ...EPSON EPL N3000 AcuLaserM4000N A4 Monochrome Laser Printer SERVICE MANUAL SEPG03004 Confidential ...
Страница 19: ...Confidential C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 33: ...Confidential C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 63: ...Confidential C H A P T E R 3 TROUBLESHOOTING ...
Страница 160: ...Confidential C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 396: ...Confidential C H A P T E R 5 ADJUSTMENT ...
Страница 404: ...Confidential C H A P T E R 6 MAINTENANCE ...
Страница 408: ...Confidential C H A P T E R 7 APPENDIX ...