Paper Size Error/Duplex; No Recognition Of Option Duplex - Epson EPL-N3000 Service Manual

EPSON EPL-N3000/AcuLaser M4000N

3.2.29 Paper Size Error/Duplex

Table 3-32. Troubleshooting for Paper Size Error/Duplex
Step Action and Question
Parts below can be the source of this error
• HVPS/MCU
(p.301)
• GUIDE TRAY LEFT
(p.236)
• PWBA FEEDER 550
(p.310)
Paper Size
1
♦
Does the specification for the paper size permit
duplex printing?
Paper size setting
1. Check to see if the paper size setting by the GUIDE
2 END of the Paper Cassette agrees with the actual
paper size.
♦
Does the paper size setting of each tray agree with
the actual paper size?
Paper feed tray (1)
3
1. Check the paper feed tray when the error occurs.
♦
Is Tray 1 the paper feed tray when the error occurs?
Paper feed tray (2)
4
1. Check the paper feed tray when the error occurs.
♦
Is Tray 2 the paper feed tray when the error occurs?
Paper feed tray (3)
5
1. Check the paper feed tray when the error occurs.
♦
Is Tray 3 the paper feed tray when the error occurs?
Paper feed tray (4)
6
1. Check the paper feed tray when the error occurs.
♦
Is Tray 4 the paper feed tray when the error occurs?
Troubleshooting
Yes No
(Chapter 4 Disassembly and
Assembly)
Replace
Go to Step 2
the paper
Correct
Go to Step 3 paper size
setting
Replace the Go to Step
HVPS/MCU 4
Replace the Go to Step
HVPS/MCU 5
Go to PWBA
Go to Step
FEEDER550
6
(p. 130/p. 130)
Go to PWBA Replace
FEEDER550 the HVPS/
(p. 130/p. 130) MCU
Troubleshooting When There is Error Display

3.2.30 No Recognition of Option Duplex

Table 3-33. Troubleshooting for "No Recognition of Option Duplex"
Step Action and Question
Parts below can be the source of this error
• PWBA DUPLEX
(p.347)
• HVPS/MCU
(p.301)
• HARNESS ASSY DUP
(p.359)
• HARNESS ASSY LVPS
Option Duplex detection signal (1)
1. Remove the PWBA DUPLEX. (p.347)
2. Disconnect the HARNESS ASSY DUP.
3. Connect the Connector J2750 of the HARNESS
1
ASSY DUP to the Connector P2750 of the
HARNESS ASSY LVPS.
(Refer to "Connectors (p.406)")
4. Check the voltage between P2750-5 ↔ J2750-6.
♦ 3.3 VDC between P2750-5 ↔ J2750-6?
Option Duplex detection signal (2)
2
1. Measure the voltage between the connectors
P/J27-4 ↔ P/J27-3 on the HVPS/MCU.
3.3 VDC between P/J27-4 ↔ P/J27-3?
♦
Continuity of the HARNESS ASSY LVPS
1. Disconnect the HARNESS ASSY LVPS.
2. Check continuity between J27 ↔ J2750.
3 J27-4 ↔ J2750-5
J27-3 ↔ J2750-6
J27-2 ↔ J2750-7
J27-1 ↔ J2750-8
Is there continuity between J27 ↔ J2750?
♦
Continuity of the HARNESS ASSY DUP
1. Disconnect the connector of the HARNESS ASSY
DUP.
2. Check continuity between J2750 ↔ J50.
4
J2750-3 ↔ J50-8
J2750-4 ↔ J50-7
J2750-5 ↔ J50-6
J2750-6 ↔ J50-5
Is there continuity between J2750 ↔ J50?
♦
Revision C
Yes No
(Chapter 4 Disassembly and
Assembly)
Go to Step 4 Go to Step 2
Replace the
Go to Step 3
HVPS/MCU
Replace the
Go to Step 4 HARNESS
ASSY LVPS
Replace the Replace the
PWBA HARNESS
DUPLEX ASSY DUP
93
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