Routine maintenance
47
A
 
• To prevent damage to the machine from 
static electricity, DO NOT touch the 
electrodes shown in the illustration.
 
 
d Put the print sample in front of the drum 
unit, and find the exact position of the 
poor print.
 
e Turn the drum unit gear by hand while 
looking at the surface of the OPC 
drum (1).
 
f When you have found the mark on the 
drum that matches the print sample, 
wipe the surface of the OPC drum with a 
dry cotton swab until the dust or glue on 
the surface comes off.
 
DO NOT clean the surface of the 
photosensitive drum with a sharp object or 
any liquids.
 
1