Samsung SCX-5315F Service Manual page 52

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)
Partial blank image
(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. Toner debris in paper path
3. Pressure roller contamination
1. Paper quality and finish?
2. Check fusing temperature.
3. The machine was kept at a low tempera-
ture for a long time?
1. Toner is low?
2. The toner cartridge is out of position?
1. repatative white or black marks at regular
intervals.
Solution
1. Change the HVPS Board.
2. Print a number of "Cleaning" sheets – if
problem persists change the cartridge..
1. Change the HVPS Board.
2. Check PTL lamp comes on –replace if
necessary
3. Clean the inside machine or replace toner
cartridge.
1. Clean the transfer roller with vacuum
cleaner.
2. Clean the paper path with a cloth or air
duster.
3. Remove fuser and replace it.
1. Should use recommended paper.
2. Check engine controller board. If you do
not have a thermometer, measure the
thermistor voltage to CPU, If 2.3V±5%
when printing is correct therwise disas-
semble fthe user and check the thermistor
contacts and thermistor.
3. Re-check after allowing the machine to
come up to room temperature.
1. Replace Toner cartridge.
2. Checkand adjust.
Measure the spacing of the marks and com-
pare the spacing to those given in the table
below.
• Spacing 1 and 2 – Replace the OPC
• Spacing 3 and 4 – replace the toner car
tridge
• Spacing 5 – replace the transfer roller
• Spacing 6 and 7 – replace the Fuser.
Troubleshooting
4-19