EPSON EPL-N4000/EPL-N4000+
Chapter 3
Troubleshooting
Rev.B
104
Table 3-15. Erratic Operation
3.3.3 Inoperative Control Panel
The Control Panel LEDs, LCD, and /or Keypad do not function or do not
function correctly.
Table 3-16. Inoperative Control Panel
Step
Actions and Questions
Yes
No
7
HOST/PRINTER INTERFACE
CABLE REPLACEMENT
Replace the interface cable connecting
the host to the printer.
Is the problem still present?
Go to step 8
Problem
solved
8
ESS PWB REPLACEMENT
Replace the ESS PWB
(See Chapter
4)
Does the printer still exhibit erratic
operation?
Go to
Suspect
Components
Problem
solved
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.
• ESS PWB
1
CONTROL PANEL TEST
1. Remove the Control Panel from the
Top Cover
2. Connect the Control Panel to P 410 on
the MCU PWB.
Go to step 2
Go to step 3
2
C262 MAIN CONTROLLER
REPLACEMENT
Replace the C262 Main Controller
Board.
Is the problem still present?
Replace the
MCU PWB
(See
Chapter 4)
Problem
solved
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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