Brother International HL 1240 Service Manual - Page 283

CHAPTER 3 MAINTENANCE Warning After you have just used the printer, some internal parts of the printer are extremely hot. When you open the front cover of the printer, never touch the shaded parts shown in the following illustration. High Temperature Front view High Temperature Rear view Fig. 3-20 Inside the printer 4. Gently wipe the scanner window with a soft dry cloth. Scanner Window Fig. 3-21 Cleaning the scanner window ! Caution • Do not touch the scanner window with your fingers. • Do not wipe the scanner window with cleaning alcohol (isophorol). • 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 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. 3-17