Brother DCP-9020CDN, User Manual

Page: 79 / 163

Routine maintenance
71
A
c
In the ADF unit, clean the white bar (1)
and the scanner glass strip (2)
underneath it with a soft lint-free cloth
slightly moistened with water.
NOTE
In addition to cleaning the scanner glass
and glass strip with a soft lint-free cloth
slightly moistened with water, run your
finger tip over the glass to see if you can
feel anything on it. If you feel dirt or debris,
clean the glass again concentrating on
that area. You may need to repeat the
cleaning process three or four times. To
test, make a copy after each cleaning.
d
Close the document cover.
e
Turn on the machine.
Cleaning the corona wires
A
If you have print quality problems or the
Touchscreen shows
Drum !
, clean the
corona wires as follows:
a
Open the top cover until it locks in the
open position.
b
Remove the toner cartridge and drum
unit assembly.
2
1