Samsung ML-1665 Service Manual - Page 79

Ghost 1, Description, Ghost occurs at 62.9 mm intervals of the OPC drum in the whole printing. - printer cartridge

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Alignment and Troubleshooting 8) Ghost (1) Description : Ghost occurs at 62.9 mm intervals of the OPC drum in the whole printing. 62.9mm 1. Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the electrode of the Developer. Clean the terminals when contaminated by toner particles. 2. Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the one in the HVPS board. Occur in the developer cartridge, replace the developer and try to print out. 3. The life of developer is expired. Replace the engine board if not solved by the above directions 1-2. 4. Transfer roller lifetime (50.000 sheets) has expired. If not solved by the direction 3, check the transfer roller lifetime and replace it. 5. Abnormal low temperature (below 10℃). Wait about 1 hour after power on before using printer. Service Manual 4-31 Samsung Electronics

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Alignment and Troubleshooting
Service Manual
4-31
Samsung Electronics
8) Ghost (1)
Description :
Ghost occurs at 62.9 mm intervals of the OPC drum in the whole printing.
3. The life of developer is expired.
4. Transfer roller lifetime
(50.000 sheets) has expired.
5. Abnormal low temperature
(below 10
℃
).
2. Bad contacts
caused by contamination
from toner particles between high
voltage terminal in the main body and the
one in the HVPS board.
1. Bad contacts
caused by contamination from
toner particles between high voltage
terminal in the main body and the
electrode of the
Developer.
Clean the terminals when
contaminated by toner particles.
Replace the engine board if not
solved by the above directions 1-2.
Occur in the developer cartridge,
replace the developer and try to
print out.
Wait about 1 hour after power on
before using printer.
If not solved by the direction 3,
check the transfer roller lifetime
and replace it.
62.9mm