3. The life of developer is expired.
4. Transfer roller lifetime
(50.000 sheets) has expired.
5. Abnormal low temperature
(below 10°C).
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.
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