EPSON EPL-N3000/AcuLaser M4000N
Revision C
Troubleshooting
Troubleshooting for Faulty Operation
106
Confidential
11
PWBA FEEDER
1. Disconnect P/J20 from the HVPS/MCU.
2. Remove the Imaging Cartridge.
3. Turn on power.
♦
Does the Fan Main operate?
Replace the PWBA
FEEDER 550
Go to Step 12
12
INTERLOCK S/W
1. Disconnect P/J44 and P/J45 from the LVPS.
2. While pushing and releasing the lever of the
Interlock S/W, check continuity between P/J44-1
↔
P/J44-3 and between P/J45-1
↔
P/J45-3.
♦
Is there continuity between P/J44-1
↔
P/J44-3
and between P/J45-1
↔
P/J45-3 when the lever
of the Interlock S/W is pushed, and discontinuity
when lever is released?
Go to Step 13
Replace the
INTERLOCK
S/W
13
SWITCH I/L ASSY
1. Disconnect the P/J411.
♦
Is there continuity between P/J411-2
↔
P/J411-1
when the SWITCH I/L ASSY is pushed, and no
continuity when it is released?
Go to Step 14
Replace the
SWITCH I/L
ASSY
14
CLUTCH ASSY PH
1. Disconnect P/J242 and P/J247 from the
HARNESS ASSY TRAY 1/2.
2. Make certain that the Imaging Cartridge has been
removed.
3. Turn on power.
♦
Does the Fan operate?
Go to
3.4.14
CLUTCH ASSY
PH
(p.124)
Go to Step 15
15
MAIN MOTOR
1. Disconnect P/J43 from the LVPS.
2. Remove the Imaging Cartridge.
3. Turn on power.
♦
Does the FAN MAIN operate?
Go to
3.4.2 MAIN
MOTOR
(p.112)
Go to Step 16
Table 3-53. Troubleshooting for “Power Does Not Turn ON” (continued)
Step
Action and Question
Yes
No
16
FAN MAIN
1.
Replace the FAN MAIN.
(p.293)
2. Remove the Imaging Cartridge.
3. Turn on power.
♦
Does the FAN MAIN operate?
Problem solved
Go to Step 17
17
FAN SUB
1. Replace the FAN SUB.
2. Remove the Imaging Cartridge.
3. Turn on power.
♦
Does the FAN SUB operate?
Problem solved
Replace the
HVPS/MCU
Table 3-53. Troubleshooting for “Power Does Not Turn ON” (continued)
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 ...