Service manual

Troubleshooting
Samsung Electronics 4-19
Background 1. High voltage output is normal?
2. C/R of Toner cartridge is contaminated?
1. Adjust to the rated status.
2. Replace Toner cartridge.
Ghost 1. High voltage output.
2. Pre-Transfer Lamp.
3. Bad high voltage contact.
1. Check every high voltage.
2. Check the turn-on PTL, LED crash.
3. Clean the inside machine or replace toner
cartridge.
Stains on back of
paper
1. Contamination of transfer roller.
2. Stains of paper path.
3. Pressure roller’s contamination.
1. Clean the transfer roller with vaccum
cleaner.
2. Clean the area of paper path with cloth or
air cleaner.
3. Remove fuser and replace it.
Poor Fusing 1. Use recommended paper?
2. Check fusing temperature.
3. The machine was under the low tempera
ture for a long time?
1. Should use recommended paper.
2. Check engine controller board.
If you have not thermometer, measure
the thermistor voltage to CPU, If 2.3V±5%
in printing CPU works well. Then, disas-
semble fuser and check the thermistor
contact and thermistor.
3. Re-check after putting the machine in the
warm place for certain period.
Partial blank image
(not periodic)
1. Toner is low?
2. The toner cartridge is out of position?
1. Replace Toner cartridge.
2. Checkand adjust.
Error Status Check Solution
Digital Printer
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Digital Printer
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Digital Printer
Digital Printer