Samsung ML-1665 Service Manual page 80

Alignment and Troubleshooting
9) Ghost (2)
Description : Ghost occurs at 62.9 mm intervals of the OPC drum in the whole printing.
(When printing on card stock or transparencies using manual feeder)
When printing on card stock
Select 'Thick Mode' on paper type
thicker than normal paper or
menu from the software application
transparencies such as OHP, higher
and after using returning to the
transfer voltage is
original mode is recommended.
required.
4-32
Service Manual
Samsung Electronics