Routine maintenance
5 - 6
5
6 Put the new toner cartridge firmly into the drum unit until 
you hear it lock into place. If you put it in properly, the 
lock lever will lift automatically.
7 Clean the primary corona wire inside the drum unit by 
gently sliding the blue tab from right to left and left to right 
several times. Return the tab to the home position () 
before you put the drum unit back in the printer. If you do 
not, printed pages may have a vertical stripe.
8 Put the drum unit and toner cartridge assembly back in 
the printer. Close the front cover of the printer.
IMPORTANT
Make sure you insert the toner cartridge properly or it may 
separate from the drum unit.
IMPORTANT
When installing the assembly, hold its grip.
Home position ()