Sensor Full Stack (On Pwba Oct); Sensor Offset (On Pwba Oct) - Epson EPL-N3000 Service Manual

EPSON EPL-N3000/AcuLaser M4000N

3.4.38 Sensor Full Stack (on PWBA OCT)

Table 3-97. Troubleshooting for SENSOR Full Stack (on PWBA OCT)
Step Action and Question
Parts below can be the source of this error
• SENSOR FULL STACK
(p.268)
• ACTUATOR FULL STACK
• PWBA OCT
(p.368)
• HARNESS ASSY OCT2
• HVPS/MCU
(p.301)
• HARNESS ASSY OCT1
Operation of ACTUATOR FULL STACK
1. Remove the Option OCT.
♦
1 When the ACTUATOR FULL STACK is moved by
hand, does the ACTUATOR FULL STACK 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?
Continuity of HARNESS ASSY OCT2
1. Disconnect P/J 70 on the PWBA OCT
2
2. Disconnect the HARNESS ASSY OCT2.
Is there normal continuity between J30 ↔ J3070?
♦
Continuity of HARNESS ASSY OCT1
3
1. Disconnect the HARNESS ASSY OCT1.
Is there normal continuity between J30 ↔ J3070?
♦
Sensor Full Stack on PWBA OCT
4
1. Replace the PWBA OCT. (p.368)
♦
Is the trouble solved?
Troubleshooting
Yes
(Chapter 4 Disassembly and
Assembly)
(p.269)
Replace the
Go to Step 2 ACTUATOR
FULL STACK
Replace the
Go to Step 3 HARNESS
ASSY OCT2
Replace the
Go to Step 4 HARNESS
ASSY OCT1
Problem Replace the
solved HVPS/MCU
Troubleshooting for Individual Units

3.4.39 Sensor Offset (on PWBA OCT)

Table 3-98. Troubleshooting for Sensor offset
No Step Action and Question
Parts below can be the source of this error
• Sensor Offset
• CHUTE OFFSET ASSY
• PWBA OCT
(p.368)
• HARNESS ASSY OCT2
• HVPS/MCU
(p.301)
• HARNESS ASSY OCT1
Operation of Actuator of CHUTE OFFSET
1. Remove the Option OCT.
1
2. Remove the COVER OCT.
♦
When the Actuator in the CHUTE OFFSET is
moved by hand, does the CHUTE OFFSET operate
smoothly?
Continuity of HARNESS ASSY OCT2
1. Disconnect P/J 70 on the PWBA OCT
2
2. Disconnect the HARNESS ASSY OCT2.
♦ Is there normal continuity between J30 ↔ J3070?
Continuity of HARNESS ASSY OCT1
3
1. Disconnect the HARNESS ASSY OCT1.
Is there normal continuity between J30 ↔ J3070?
♦
Sensor Full Stack on PWBA OCT
4
1. Replace the PWBA OCT. (p.368)
♦
Is the trouble solved?
Revision C
Yes No
(Chapter 4 Disassembly and
Assembly)
Replace the
CHUTE
Go to Step 2
OFFSET
ASSY
Replace the
Go to Step 3 HARNESS
ASSY OCT2
Replace the
Go to Step 4 HARNESS
ASSY OCT1
Problem Replace the
solved HVPS/MCU
143
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