Samsung 275C - SRP Two-color Dot-matrix Printer Instrukcja Obsługi Strona 116

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SRP-275
7. Troubleshooting
Use the following to troubleshoot and repair the printer:
• Troubleshooting flow chart
When the source of the problem is not clear, use the flowchart to find and replace a defective component.
• Troubleshooting tables
Follow the steps outlined in these tables to repair a defect whose symptoms are known.
7-1 Troubleshooting flow chart
If the source of a problem is not clear, use the flowchart below to find and replace a defective component.
Normally, servicing should be performed by component replacement. Repairs of the PCBs and other
components should be performed only by technicians.
Start
Power On
Is POWER LED lit?
Is PAPER OUT
LED lit?
Is ERROR LED blink?
Is ERROR LED lit?
Execute self test
A
B
NO
YES
C
YES
D
YES
YES
NO
NO
NO
Is self test
normal?
E
NO
Host sends print data
YES
Is print out normal?
End
F
NO
YES
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