Samsung ML-2150 Service Manual page 90

7.1.9 Ghost (1)
• Description Ghost occurs at 95 mm intervals of the OPC drum in the whole printing.
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1. Bad contacts caused by contamination
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2. Bad contacts caused by contamination
3. The life of toner cartridge is expired.
4. Transfer roller lifetime(100,000 sheets)
5. Abnormal low temperature(below 10°C).
6. Damaged cleaning blade in the toner car-
7.1.10 Ghost (2)
Ghost occurs at 95 mm intervals of the OPC drum in the whole printing.
• Description
(When printing on card stock or transparencies using manual feeder)
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When printing on card stock thicker than nor-
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mal paper or transparencies such as OHP,
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higher transfer voltage is required.
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Samsung Electronics
Check and Cause
from toner particles between high voltage
terminal in the main body and the elec-
trode of the Toner cartridge.
from toner particles between high voltage
terminal in the main body and the one in
the HVPS board.
has expired.
tridge.
Check and Cause
T RO U B L E S H O OT I N G
Solution
1. Clean the terminals when contaminated by
toner particles.
2. Occur in the toner cartridge, replace the
toner cartridge and try to print out.
3. Replace the engine board if not solved by
the above directions 1-2.
4. If not solved by the direction 3, check the
transfer roller lifetime and replace it.
5. Wait about 1 hour after power on before
using printer.
6. Occur in the toner cartridge, replace the
toner cartridge and try to print out.
Solution
Select 'Thick Mode' on paper type menu from
the software application and after using return-
ing to the original mode is recommended.
Service Manual
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