Other Printer Operation Fault; Face Up Tray Error - Epson EPL-N3000 Service Manual

EPSON EPL-N3000/AcuLaser M4000N

3.3.4 Other Printer Operation Fault

Table 3-56. Troubleshooting for Other Printer Operation Fault
Step Action and Question
Parts below can be the source of this error
• HVPS/MCU
(p.301)
• LVPS
(p.287)
Performing Test Print
1 (p.67)
♦
Is the printer capable of test printing?
LVPS (1)
1. Remove the SHIELD PLATE LVPS. (p.285)
2 2. Remove the Imaging Cartridge.
3. Check the voltage between P/J11-13 ↔ P/J11-14.
(Refer to "Connectors (p.406)")
5 VDC between P/J11-13 ↔ P/J11-14?
♦
LVPS (2)
3 1. Remove the Imaging Cartridge.
2. Check the voltage between P/J11-16 ↔ P/J11-15.
♦ 3.3 VDC between P/J11-16 ↔ P/J11-15?
1. Install the Imaging Cartridge and execute test
4
printing.
♦
Does the printer accept RESET?
Interface Cable
5 1. Replace the Interface Cable connecting the printer to
the host.
♦
Does the problem still occur?
HVPS/MCU
1. Replace the HVPS/MCU. (p.301)
6
♦
Does the problem still occur?
Troubleshooting
Yes No
(Chapter 4 Disassembly and
Assembly)
Go to Step 4 Go to Step 2
Go to 3.4.1
Go to Step 3
LVPS (p.111)
Replace the Go to 3.4.1
HVPS/MCU LVPS (p.111)
Go to 3.4.17
Electrical Go to Step 5
Noise (p.127)
Problem
Go to Step 6
solved
Inform the
customer that
the problem is Problem
attributed to solved
the host
computer.
Troubleshooting for Faulty Operation

3.3.5 Face Up Tray Error

Table 3-57. Troubleshooting for "Face Up Tray Error"
Step Action and Question
Parts below can be the source of this error
• HVPS/MCU
(p.301)
• SENSOR FACE UP OPEN
(p.267)
• GATE FU
• LEVER GATE FU
Actuator
1
♦
When the LEVER GATE FU is moved up/down,
does the Actuator Full Stack at the end of the GATE
FU operate smoothly?
SENSOR FACE UP OPEN
2
1. Replace the SENSOR FACE UP OPEN.
♦
After the SENSOR FACE UP OPEN is replaced,
does the problem still occur?
Revision C
Yes No
(Chapter 4 Disassembly and
Assembly)
Replace the
Go to Step 2
GATE FU
Replace the Problem
HVPS/MCU solved
108
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