Brother HL-1070 - B/W Laser Printer Service Manual page 209

4. Gently wipe the scanner window with a soft dry cloth.
Fig. 5-22 Cleaning the Scanner Window
!
Caution


Do not touch the scanner window with your finger.


Do not wipe the scanner window with cleaning alcohol (isopropyl).
5. Turn the drum unit upside down carefully.
!
Caution
Handle the drum unit carefully as it contains toner. If toner scatters and
your hands or cloths get dirty, wipe or wash it off with cold water
immediately.
Note
It is recommended to put the drum unit on a piece of disposable paper or
cloth in case of accidental toner spill or scatter.
Scanner Window
5–13
CHAPTER 5 MAINTENANCE