Cleaning the drum unit- Page 137

Troubleshooting and routine maintenance

123

B

g

Plug the machine’s power cord back into 
the AC power outlet first, and then 
reconnect all cables and telephone line 
cord. Turn on the machine’s power 
switch.

CAUTION

To avoid print quality problems, DO NOT 
touch the shaded parts shown in the 
illustrations below.

Cleaning the drum unit

B

If you have print quality problems, clean the 
drum unit as follows.

a

Turn off the machine’s power switch. 
Unplug the telephone line cord first, and 
then unplug the power cord from the AC 
power outlet. 

b

Open the front cover.

c

Slowly take out the drum unit and toner 
cartridge assembly.

CAUTION

We recommend that you put the drum unit 
and toner cartridge assembly on a clean, 
flat surface with a sheet of disposable 
paper or cloth underneath it in case you 
accidentally spill or scatter toner.