Epson EPL-N3000 - Sensor Oct

EPSON EPL-N3000/AcuLaser M4000N Revision C
Troubleshooting Troubleshooting for Individual Units 142
Confidential
3.4.37 SENSOR OCT
Table 3-96. Troubleshooting for SENSOR OCT
Step Action and Question Yes No
Parts below can be the source of this error (Chapter 4 Disassembly and Assembly)
• SENSOR OCT (p.372)
• ACTUATOR OCT
• HARNESS ASSY OCT SNR
•PWBA OCT (p.368)
• HARNESS ASSY OCT2
•HVPS/MCU (p.301)
• HARNESS ASSY OCT1
1
Option OCT
1. Disconnect the Option OCT.
2. Open the COVER REAR.
♦When the ACTUATOR OCT is moved by hand,
does the ACTUATOR OCT operate smoothly? And,
when paper is absent, does the flag enter the slot of
the sensor, and when paper is present, is the flag
dislocated from the slot?
Go to Step 2
Replace the
ACTUATOR
OCT
2
SENSOR OCT (1)
1. Remove the Imaging Cartridge.
2. Install the Option OCT.
3. Open the COVER REAR.
♦When the ACTUATOR OCT is moved up/down,
does the numeral increase by one every time the
ACTUATOR ICT operates?
Replace the
HVPS/MCU
Go to Step 3
3
Continuity of HARNESS ASSY OCT SNR
1. Disconnect the HARNESS ASSY OCT SNR
♦Is there normal continuity between J73 ↔ J730?
Go to Step 4
Replace the
HARNESS
ASSY OCT
SNR
4
Continuity of HARNESS ASSY OCT2
1. Disconnect P/J 70 on the PWBA OCT
2. Disconnect the HARNESS ASSY OCT2.
♦Is there normal continuity between J30 ↔ J3070?
Go to Step 5
Replace the
HARNESS
ASSY OCT2
5
Continuity of HARNESS ASSY OCT1
1. Disconnect the HARNESS ASSY OCT1.
♦Is there normal continuity between J30 ↔ J3070?
Go to Step 6
Replace the
HARNESS
ASSY OCT1
6
SENSOR OCT (2)
1. Replace the SENSOR OCT.
♦Is the trouble solved?
Problem
solved
Go to 3.4.32
PWBA OCT
(p.139)
Table 3-96. Troubleshooting for SENSOR OCT
Step Action and Question Yes No