Cleaning the corona wire; Figure 5-23- Page 166

ROUTINE MAINTENANCE 5 - 17

HL7050_US_UG_FM5.5

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

Open the top cover.   

3

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

■

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 5-23.

Figure 5-23