Olivetti PG L2028 Special Operation Manual page 67

Maintenance
4
Place the drum unit flat on a clean, level surface.
IMPORTANT Do not place the drum unit on end.
5
Use a clean, lint free cloth to clean dust and dirt away from the metal
registration roller.
IMPORTANT Take care not to touch the transfer roller (black)
during cleaning.
6
Slide the charger cleaner (green) back and forth 2 or 3 times to clean
the charger wire, then return it to its original position (CLEANER
HOME POSITION ).
IMPORTANT After cleaning, make sure you restore the charger
cleaner to its home position.
7
When cleaning is complete, return the drum unit to the original
position.
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