Cleaning the corona wire; Figure 5-27; Figure 5-28- Page 132

ROUTINE MAINTENANCE   5 - 17

Cleaning the corona wire

If you are experiencing print quality problems, please clean the corona wire as follows:

1

Turn off the printer power switch, and then unplug the printer power cord.

2

Press the cover release button and then open the front cover of the printer.

3

Take out the drum unit assembly (drum unit with the toner cartridge).

Caution

■

We recommend that you put the drum unit assembly on a piece of disposable paper or cloth in 
case you accidentally spill the toner.

■

To prevent damage to the printer from static electricity, do not touch the electrodes shown in 
Figure 5-27.

Figure 5-27

4

Clean the primary corona wire inside the drum unit by gently sliding the blue tab from right to left 
several times.

Figure 5-28

Caution

Make sure to return the tab to the Home position. If you do not, printed pages will have a black 
vertical stripe.

5

Put the drum unit assembly back in the printer.

6

Close the front cover.

7

Plug the printer power cord back in, and then turn the printer power switch back on.

Home position 
(

▲

)