Brother MW-145BT - Manual (Page 49)

Appendix
36
Maintenance
„ Cleaning the surface of the printer
Clean off any dust or other dirt from the printer by
wiping it with a soft, dry cloth.
If the printer is extremely dirty, wipe it with a slightly damp cloth.
„ Cleaning the paper cassette sensor
If the paper cassette sensor is dirty, it will not be able to correctly
detect the paper cassette, and a malfunction may result.
Clean the paper cassette sensor with a dry cotton
swab.
7 Appendix
Be sure to turn off the printer before cleaning it.
Do not use benzene or paint thinners, otherwise the
printer may become discolored or deformed.
Paper cassette sensor