Brother HL 1650 - Manual (Page 160)

5-20
☛ ☛ ☛ ☛ 4.
Gently wipe the scanner window with a soft dry cloth.
Fig. 5-16
Warning
After you have just used the printer, some internal parts of the printer are
extremely HOT! When you open the covers of the printer, never touch the
shaded parts shown in the following illustrations.
!
Caution
• Do not touch the scanner window with your fingers.
• Do not wipe the scanner window with isopropyl alcohol.