Dell 1815 Mono Laser Service Manual page 107

Troubleshooting
7.3.9 Ghost (1)
Ghost occurs at 75.5 mm intervals of the OPC drum in the whole printing.
• Description
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7.3.10 Ghost (2)
Ghost occurs at 75.5 mm intervals of the OPC drum in the whole printing.
• Description
(When printing on card stock or transparencies using manual feeder)
Digital Printer
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Service Manual
7-14
Check and Cause
1. Bad contacts caused by contamination
from toner particles between high voltage
terminal in the main body and the elec
trode of the Developer.
2. Bad contacts caused by contamination
from toner particles between high voltage
terminal in the main body and the one in
the HVPS board.
3. The life of developer is expired.
4. Transfer roller lifetime(60,000 sheets) has
expired.
5. Abnormal low temperature(below 10°C).
6. Damaged cleaning blade in the developer .
Check and Cause
When printing on card stock thicker than nor-
mal paper or transparencies such as OHP ,
higher transfer voltage is required.
Solution
1. Clean the contaminated terminals.
-
2. Problem 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. Problem 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 use, we rec-
ommend returning to the original Mode.