Epson EPL-N3000 - Sensor Full Stack (on PWBA OCT); Sensor Offset (on PWBA OCT)

EPSON EPL-N3000/AcuLaser M4000N Revision C
Troubleshooting Troubleshooting for Individual Units 143
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3.4.38 Sensor Full Stack (on PWBA OCT) 3.4.39 Sensor Offset (on PWBA OCT)
Table 3-97. Troubleshooting for SENSOR Full Stack (on PWBA OCT)
Step Action and Question Yes No
Parts below can be the source of this error (Chapter 4 Disassembly and Assembly)
• SENSOR FULL STACK (p.268)
• ACTUATOR FULL STACK (p.269)
•PWBA OCT (p.368)
• HARNESS ASSY OCT2
•HVPS/MCU (p.301)
• HARNESS ASSY OCT1
1
Operation of ACTUATOR FULL STACK
1. Remove the Option OCT.
♦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?
Go to Step 2
Replace the
ACTUATOR
FULL STACK
2
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 3
Replace the
HARNESS
ASSY OCT2
3
Continuity of HARNESS ASSY OCT1
1. Disconnect the HARNESS ASSY OCT1.
♦Is there normal continuity between J30 ↔ J3070?
Go to Step 4
Replace the
HARNESS
ASSY OCT1
4
Sensor Full Stack on PWBA OCT
1. Replace the PWBA OCT. (p.368)
♦Is the trouble solved?
Problem
solved
Replace the
HVPS/MCU
Table 3-98. Troubleshooting for Sensor offset
Step Action and Question Yes No
Parts below can be the source of this error (Chapter 4 Disassembly and Assembly)
• Sensor Offset
• CHUTE OFFSET ASSY
•PWBA OCT (p.368)
• HARNESS ASSY OCT2
• HVPS/MCU (p.301)
• HARNESS ASSY OCT1
1
Operation of Actuator of CHUTE OFFSET
1. Remove the Option OCT.
2. Remove the COVER OCT.
♦When the Actuator in the CHUTE OFFSET is
moved by hand, does the CHUTE OFFSET operate
smoothly?
Go to Step 2
Replace the
CHUTE
OFFSET
ASSY
2
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 3
Replace the
HARNESS
ASSY OCT2
3
Continuity of HARNESS ASSY OCT1
1. Disconnect the HARNESS ASSY OCT1.
♦Is there normal continuity between J30 ↔ J3070?
Go to Step 4
Replace the
HARNESS
ASSY OCT1
4
Sensor Full Stack on PWBA OCT
1. Replace the PWBA OCT. (p.368)
♦Is the trouble solved?
Problem
solved
Replace the
HVPS/MCU