Service Manual
Troubleshooting
7-30
Samsung Electronics
White or Black
spot
• Light or dark black dots on
the image occur
periodically.
• White spots occur in the
image periodically.
1. If light or dark periodical black
dots occur, this is because the
deve rollers are contaminated
with foreign substance or paper
particles.
(1)38.3mm interval :
Charged roller
(2)94.3mm interval :
OPC cycle
2. If white spots occur in a black
image at intervals of 94.3 mm,
or black spots occur elsewhere,
the OPC drum is damaged or
foreign substance is stuck to the
surface.
3. If a black and white or graphic
image is partially broken at irregu-
lar intervals, the transfer roller's life
has been expired or the transfer
voltage is abnormal.
1. In case of 1 above -
Run OPC Cleaning Mode Print
4-5 times repeatedly to remove.
Especially check foreign sub-
stance on the OPC surface, then
remove them with a clean gauze
moistened with IPA(Isopropyl
Alcohol) not to damage OPC if
necessary.
Caution : Never use usual alcohol.
2. In case of 2 -
If they are not disappeared by
running OPC Cleaning Mode
Print 4-5 times.
: at intervals of 94.3mm -
Replace the OPC Drum.
: at intervals of 38.3mm -
Remove foreign substance,
Clean the Charged Roller
: Broken image -
Replace the toner cartridge
according to carelessness.
3. In case of 3 - Exchange the
transfer roller because the life of
the transfer roller in use has
been expired. (Check the transfer
voltage and readjust if different.)
Recycled product
• Poor appearance of the
toner cartridge and the
drum cartridge.
• Unclean and rough
printouts.
• Bad background in the
image.
1. Poor appearance of the toner
cartridge and the drum cartridge.
(1)Check the damage to label
and whether different materials
are used.
(2)Check the appearance of
parts of the toner cartridge
and the drum cartridge, such
as frame, hopper.
2. Unclean and rough printouts.
(1)Check whether foreign sub-
stance or toner are stuck to
the terminal (contact point) of
the toner cartridge and the
drum cartridge.
(2)Check whether the state of the
terminal assembly is normal.
1. In case of 1 -
(1)If there is an evidence of dis-
assembling the toner cartridge.
(2)If materials other than normal
parts of the toner cartridge are
added or substituted.
2. In case of 2 - If there are any
abnormals in connection with the
situation of 1.
(1)It occurs when the toner cartridge
is recycled over 2 times.
(2)If toner nearly being expired
are collected to use, it is judged
as the recycled toner cartridge.
Fault
Signs
Cause & Check
Solution
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Содержание SCX-6320F
Страница 7: ...Samsung Electronics Service Manual Precautions 1 6 MEMO ...
Страница 15: ...Service Manual Reference Information 2 8 Samsung Electronics 2 3 2 A4 2 Pattern ...
Страница 18: ...Reference Information Samsung Electronics Service Manual 2 11 MEMO ...
Страница 25: ...Summary of Product Service Manual 4 3 Samsung Electronics 4 1 3 Control Panel SCX 6320F SCX 6220 ...
Страница 26: ...Service Manual Summary of Product 4 4 Samsung Electronics ...
Страница 27: ...Summary of Product Service Manual 4 5 Samsung Electronics ...
Страница 70: ...Service Manual Precautions 5 26 Samsung Electronics MEMO ...
Страница 131: ...Service Manual Troubleshooting 7 34 Samsung Electronics ...
Страница 173: ...Service Manual Exploded View Parts List 8 42 Samsung Electronics MEMO ...
Страница 179: ...Connection Diagrams DADF Circuit Diagram 1 4 ...
Страница 180: ...Connection Diagrams DADF Circuit Diagram 2 4 ...
Страница 181: ...Connection Diagrams DADF Circuit Diagram 3 4 ...
Страница 182: ...Connection Diagrams DADF Circuit Diagram 4 4 ...
Страница 183: ... COM ...
Страница 184: ......
Страница 185: ......
Страница 186: ......
Страница 187: ......
Страница 188: ......
Страница 189: ......
Страница 190: ......
Страница 191: ......
Страница 192: ......
Страница 193: ......
Страница 194: ......
Страница 195: ......
Страница 196: ......
Страница 197: ......
Страница 198: ......
Страница 199: ......
Страница 200: ......
Страница 201: ......
Страница 202: ......
Страница 203: ......
Страница 204: ......
Страница 205: ......
Страница 206: ......
Страница 207: ......