Troubleshooting
Samsung Electronics
4-22
Dark selected
via RCP?
Change to
Normal and test
Works cor
with -300V of Bias
voltage?
Works
correctly after
replaced LSU?
Repair or replace the defective
component
The power of LSU is set
high or internal problem
-> Replace LSU or adjust
volume
Same at Normal?
END
NO
NO
NO
Toner over supply due to the
adjustment fault of metering
blade in developer
-> Replace developer
NO
YES
YES
YES
YES
Dark Image
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Содержание SF-830
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Страница 165: ...4 4 SCHEMATIC DIAGRAMS Samsung Electronics Repair Manual Main Circuit Diagram 4 17 ...
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Страница 178: ...4 17 Samsung Electronics SCHEMATIC DIAGRAMS Repair Manual Main Circuit Diagram 17 17 ...
Страница 180: ...4 19 Samsung Electronics SCHEMATIC DIAGRAMS Repair Manual 4 3 OPE Circuit Diagram D9 ...
Страница 181: ...4 20 SCHEMATIC DIAGRAMS Samsung Electronics Repair Manual 4 4 Scan Circuit Diagram ...
Страница 187: ...4 26 SCHEMATIC DIAGRAMS Samsung Electronics Repair Manual 4 8 PTL Circuit Diagram ...
Страница 188: ...4 27 Samsung Electronics SCHEMATIC DIAGRAMS Repair Manual 4 10 Toner_Rx Circuit Diagram ...
Страница 189: ...4 28 SCHEMATIC DIAGRAMS Samsung Electronics Repair Manual 4 11 Toner_Tx Circuit Diagram ...