4
Maintenance
Toshiba
B
‐
FV4T
Owner’s
Manual
32
4.1.3 Sensor
Media
sensors
may
not
be
able
to
detect
the
media
correctly
if
it
becomes
dirty.
1.
Moisten
a
soft
cloth
or
a
cotton
swab
with
absolute
ethyl
alcohol.
2.
Gently
brush
sensors
to
remove
the
dust
away.
3.
Use
a
dry
cloth
to
clean
the
residue.