Brother MFC-9140CDN - Cleaning the LED Heads

Routine maintenance
97
A
f Wipe the inside and the outside of the
paper tray with a dry, lint-free cloth to
remove dust.
g Re-load the paper and put the paper tray
firmly back in the machine.
h Turn on the machine.
Cleaning the LED heads A
If there is a problem with the print quality,
such as light or faded colours or white streaks
or bands down the page, clean the LED
heads as follows:
IMPORTANT
DO NOT touch the windows of the LED
heads with your fingers.
a Press and hold down to turn the
machine off.
b Open the top cover until it locks in the
open position.