Sensor Oct - Epson EPL-N3000 Service Manual

EPSON EPL-N3000/AcuLaser M4000N

3.4.37 SENSOR OCT

Table 3-96. Troubleshooting for SENSOR OCT
Step Action and Question
Parts below can be the source of this error

• SENSOR OCT

(p.372)
• ACTUATOR OCT
• HARNESS ASSY OCT SNR
• PWBA OCT
(p.368)
• HARNESS ASSY OCT2
• HVPS/MCU
(p.301)
• HARNESS ASSY OCT1
Option OCT
1. Disconnect the Option OCT.
2. Open the COVER REAR.
1
♦
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?
SENSOR OCT (1)
1. Remove the Imaging Cartridge.
2. Install the Option OCT.
2
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?
Continuity of HARNESS ASSY OCT SNR
3
1. Disconnect the HARNESS ASSY OCT SNR
Is there normal continuity between J73 ↔ J730?
♦
Continuity of HARNESS ASSY OCT2
1. Disconnect P/J 70 on the PWBA OCT
4
2. Disconnect the HARNESS ASSY OCT2.
♦ Is there normal continuity between J30 ↔ J3070?
Troubleshooting
Yes No
(Chapter 4 Disassembly and
Assembly)
Replace the
Go to Step 2 ACTUATOR
OCT
Replace the
Go to Step 3
HVPS/MCU
Replace the
HARNESS
Go to Step 4
ASSY OCT
SNR
Replace the
Go to Step 5 HARNESS
ASSY OCT2
Troubleshooting for Individual Units
Table 3-96. Troubleshooting for SENSOR OCT
Step Action and Question
Continuity of HARNESS ASSY OCT1
5
1. Disconnect the HARNESS ASSY OCT1.
Is there normal continuity between J30 ↔ J3070?
♦
SENSOR OCT (2)
6
1. Replace the SENSOR OCT.
♦
Is the trouble solved?
Revision C
Yes No
Replace the
Go to Step 6 HARNESS
ASSY OCT1
Go to 3.4.32
Problem
PWBA OCT
solved
(p.139)
142
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