Samsung SCX-5312F Service Manual page 43

Error Status
Background
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Ghost
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Stains on back of
paper
Poor Fusing
Partial blank image
(not periodic)
Samsung Electronics
Check
1. High voltage output is normal?
2. C/R of Toner cartridge is contaminated?
1. High voltage output.
2. Pre-Transfer Lamp.
3. Bad high voltage contact.
1. Contamination of transfer roller.
2. Stains of paper path.
3. Pressure roller's contamination.
1. Use recommended paper?
2. Check fusing temperature.
3. The machine was under the low tempera
ture for a long time?
1. Toner is low?
2. The toner cartridge is out of position?
Solution
1. Adjust to the rated status.
2. Replace Toner cartridge.
1. Check every high voltage.
2. Check the turn-on PTL, LED crash.
3. Clean the inside machine or replace toner
cartridge.
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.
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.
1. Replace Toner cartridge.
2. Checkand adjust.
Troubleshooting
4-19