142
d Clean the corona wire inside the drum 
unit by gently sliding the blue tab from 
right to left and left to right several times.
 
CAUTION
 
Be sure to return the blue tab to the home 
position (a) (1). If you do not, printed pages 
may have a vertical stripe.
 
e Put the drum unit and toner cartridge 
assembly back in the machine.
 
f Close the front cover.
g Plug the machine’s power cord back into 
the electrical socket first, and then 
reconnect all cables and telephone line 
cord. Turn on the machine.
CAUTION
 
To avoid print quality problems, DO NOT 
touch the shaded parts shown in the 
illustrations below.
 
 
 
1