Brother MFC-790CW - Manual (Page 179)

Troubleshooting and Routine Maintenance
163
B
CAUTION
DO NOT take out ink cartridges if you do
not need to replace them. If you do so, it
may reduce the ink quantity and the
machine will not know the quantity of ink left
in the cartridge.
DO NOT touch the cartridge insertion slots.
If you do so, the ink may stain your skin.
If ink gets on your skin or clothing
immediately wash it off with soap or
detergent.
If you mix the colors by installing an ink
cartridge in the wrong position, clean the
print head several times after correcting the
cartridge installation.
Once you open an ink cartridge, install it in
the machine and use it up within six months
of installation. Use unopened ink cartridges
by the expiration date written on the
cartridge package.
DO NOT dismantle or tamper with the ink
cartridge, this can cause the ink to leak out
of the cartridge.
Cleaning the outside of the
machine
B
Clean the Touchscreen as follows:
CAUTION
Turn off the power switch when you clean
the Touchscreen.
DO NOT use any type of liquid cleaners
(including ethanol).
a
Clean the Touchscreen with a dry soft
cloth.
Clean the outside of the machine as
follows:
CAUTION
Use neutral detergents. Cleaning with
volatile liquids such as thinner or benzine
will damage the outside surface of the
machine.
DO NOT use cleaning materials that
contain ammonia.
DO NOT use isopropyl alcohol to remove
dirt from the control panel. It may crack the
panel.