Confidential
2-78
4.6
Control Panel Problems
4.6.1 No display on LCD
4.6.2 No display on LED
4.6.3 The control panel does not work
4.6.4 Touch panel inoperative
Step
Cause
Solution
1
AC cord defective
Replace the AC cord.
2
Panel harness connection failure
Check connection of the panel harness and re-
connect.
3
Control panel ASSY defective
Replace the control panel ASSY.
4
Power supply PCB defective
Replace the power supply PCB ASSY.
5
Main PCB defective
Replace the main PCB ASSY.
Step
Cause
Solution
1
AC cord defective
Replace the AC cord.
2
Panel harness connection failure
Check connection of the panel harness and re-
connect.
3
Control panel ASSY defective
Replace the control panel ASSY.
4
Power supply PCB defective
Replace the power supply PCB ASSY.
5
Main PCB defective
Replace the main PCB ASSY.
Step
Cause
Solution
1
Panel connection failure
Check connection of the panel harness and re-
connect.
2
Control panel ASSY defective
Replace the control panel ASSY.
3
Main PCB defective
Replace the main PCB ASSY.
Step
Cause
Solution
1
Panel connection failure
Check connection of the panel harness and re-
connect.
2
Adjustment slippage of the touch
panel
Perform the touch panel adjustment. (refer to
3
Control panel ASSY defective
Replace the control panel ASSY.
4
Main PCB defective
Replace the main PCB ASSY.
Summary of Contents for Business Smart MFC-J4510dw
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Page 51: ...Confidential 2 14 Error Code Contents Refer to page FE ROM data acquisition error 2 57 ...
Page 130: ...3 3 Confidential 2 PACKING 3_131_E ...
Page 153: ...3 26 Confidential 3 Set the protective part 3_002_E Protective part ...
Page 265: ...4 11 Confidential ADF Copy Chart A B C ...
Page 292: ...5 13 Confidential Scanning Compensation Data List ...
Page 294: ...5 15 Confidential Test Pattern ...
Page 317: ...5 38 Confidential pfadj1 Pattern ...
Page 318: ...5 39 Confidential pfadj2 Pattern ...
Page 324: ...5 45 Confidential Vertical Lines Check Pattern ...
Page 325: ...5 46 Confidential Software Correction for Inclination Corrugation Ruled Lines Check Pattern ...