EPSON EPL-N3000/AcuLaser M4000N
Revision C
Troubleshooting
Troubleshooting for Individual Units
132
Confidential
3.4.24 SENSOR LOW PAPER
Table 3-83. Troubleshooting for SENSOR LOW PAPER
Step
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
• SENSOR LOW PAPER
(p.309)
• ACTUATOR LOW PAPER
• HARNESS LOW PAPER
• HARNESS ASSY FDR2
• OPTION 550 PAPER FEEDER
(p.303)
• 550 Paper Cassette
(p.191)
• PWBA FEEDER 550
(p.310)
• PLATE ASSY BTM
(p.330)
• HVPS/MCU
(p.301)
1
ACTUATOR LOW PAPER
1.
Remove the OPTION 550 PAPER FEEDER.
(p.303)
2. Install the 550 Paper Cassette.
3. Check the operation of the ACTUATOR LOW
PAPER by pushing and releasing the PLATE ASSY
BTM with your hand.
♦
Does the ACTUATOR LOW PAPER operate
smoothly in such a way that the flag enters the
sensing area of the sensor when the PLATE ASSY
BTM is released (Actuator LOW PAPER is pushed
up) and the flag leaves the sensing area when the
PLATE ASSY BTM is pushed down?
Go to Step 2
Replace the
ACTUATOR
LOW
PAPER
2
SENSOR LOW PAPER (2)
1. Install the Option 550 Paper Feeder.
(p.303)
2. Make certain that the Imaging Cartridge has been
removed.
3. Close the COVER OPEN.
4. Remove the 550 Paper Cassette.
5. Insert your hand through the cassette inserting
opening, lift the ACTUATOR NO PAPER, and
measure the voltage between P/J81-3
↔
P/J81-2 on
the PWBA FEEDER 550. (Refer to
“Connectors
(p.406)”
)
♦
Is the voltage 3.3 VDC between P/J81-3
↔
P/J81-2
when the ACTUATOR LOW PAPER is lifted and 0
VDC when the Actuator is released?
Go to PWBA
FEEDER550
(
p. 130
/
p. 130
)
Go to Step 3
3
Continuity of the HARNESS LOW PAPER
1. Install the Option 550 Feeder.
(p.303)
2. Disconnect the connector of the SENSOR LOW
PAPER.
3. Disconnect the connector P/J81 on the PWBA
FEEDER 550.
4. Check continuity between J81
↔
J810.
♦
Do all the wires between J81
↔
J810 have
continuity?
Go to Step 4
Replace the
HARNESS
LOW
PAPER
4
Continuity of the HVPS/MCU
1. Disconnect P/J11 and P/J20 on the HVPS/MCU.
2. Check continuity between P11-16
↔
P20-5.
♦
Is there continuity between P11-16
↔
P20-5?
Go to Step 5
Replace the
HVPS/MCU
5
SENSOR LOW PAPER (3)
1.
Replace the SENSOR LOW PAPER.
(p.309)
♦
Does the problem still occur?
Replace the
HVPS/MCU
Problem
solved
Table 3-83. Troubleshooting for SENSOR LOW PAPER
Step
Action and Question
Yes
No
Summary of Contents for AcuLaser M4000N
Page 19: ...Confidential C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 33: ...Confidential C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 63: ...Confidential C H A P T E R 3 TROUBLESHOOTING ...
Page 160: ...Confidential C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Page 396: ...Confidential C H A P T E R 5 ADJUSTMENT ...
Page 404: ...Confidential C H A P T E R 6 MAINTENANCE ...