EPSON EPL-N4000/EPL-N4000+
Chapter 3
Troubleshooting
Rev.B
108
3.3.6 J1-2 is not displayed when the EP Cartridge is
out of toner
The Control Panel LCD does not display the code J1-2 when the EP
Cartridge is out of toner.
Table 3-23. J1-2 is not displayed when the EP cartridge is out
3.3.7 Inoperative Interlock Switch
The Control Panel LCD either does not display an interlock open Error
Code whenever a specific door or cover is open, or it does not display
an interlock open Error Code when a specific door or cover is closed.
Table 3-24. Inoperative Interlock Switch
Step
Actions and Questions
Yes
No
SUSPECT COMPONENTS
The following components are
associated with this specific problem.
One or more of these components may
have failed partially or completely. If you
cannot isolate the problem using this FIP,
replace each component listed below,
one at a time, until the problem
disappears.
• LVPS Assembly
• ESS PWB
• Wiring and connectors linking the
components.
1
TONER SENSOR TEST
1. Insert and remove a new EP Cartridge
into the printer.
Does the Control Panel LCD display L
when the EP Cartridge is in place, and
does the LCD display H when you
remove the Cartridge?
Replace the
MCU PWB.
Replace the
Toner
Sensor.
Step
Actions and Questions
Yes
No
SUSPECT COMPONENTS
The following components are
associated with this specific problem.
One or more of these components may
have failed partially or completely. If you
cannot isolate the problem using this FIP,
replace each component listed below,
one at a time, until the problem
disappears.
• Wiring and connectors linking the
components.
• Printer cover or door
1
INTERLOCK SWITCH TEST
1. Manually actuate and deactuate the
switch.
Does the Control Panel LCD display a
number that advances by one digit
each time you actuate or deactuate
the interlock switch?
Replace the
MCU PWB.
Replace the
Left Lower
Cover
Interlock
Switch or the
Left Cover
Interlock
Switch.
Содержание EPL-N4000
Страница 1: ...EPSON EPL N4000 EPL N4000 Laser Printer SEPG98002 ...
Страница 15: ... PRODUCTDESCRIPTION ...
Страница 66: ... OPERATING PRINCIPLES ...
Страница 92: ...EPSON EPL N4000 EPL N4000 Chapter 2 Operating Principles Rev B 78 Figure 2 37 Power Supply Component ...
Страница 103: ... TROUBLESHOOTING ...
Страница 146: ... DISASSEMBLYANDASSEMBLY ...
Страница 238: ... ADJUSTMENT ...
Страница 239: ...EPSON EPL N4000 EPL N4000 Chapter 5 Adjustment Rev B 225 No adjustment is necessary for this printer ...
Страница 240: ... MAINTENANCE ...
Страница 242: ... APPENDIX ...
Страница 244: ...EPSON EPL N4000 EPL N4000 Chapter 7 Appendix Rev B 230 Figure 7 1 Major Component Connecting Diagram ...
Страница 249: ...EPSON EPL N4000 EPL N4000 Chapter 7 Appendix Rev B 235 Figure 7 3 P J Location Map2 Figure 7 4 P J Location Map3 ...
Страница 250: ...EPSON EPL N4000 EPL N4000 Chapter 7 Appendix Rev B 236 Figure 7 5 P J Location Map4 Figure 7 6 P J Location Map5 ...
Страница 251: ...EPSON EPL N4000 EPL N4000 Chapter 7 Appendix Rev B 237 Figure 7 7 P J Location Map6 Figure 7 8 P J Location Map7 ...
Страница 252: ...EPSON EPL N4000 EPL N4000 Chapter 7 Appendix Rev B 238 Figure 7 9 P J Location Map8 ...
Страница 266: ...EPSON EPL N4000 EPL N4000 Chapter 7 Appendix Rev B 252 Figure 7 24 C262 Main Component Layout Soldered side a02 ...
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