Brother HL-1240 - Manual (Page 70)

3-14
How to clean the printer
Clean the printer exterior and interior periodically. If printed pages get stained with
toner, clean the printer interior and drum unit.
Cleaning the printer exterior
✒ Note
Clean the printer exterior using the information in the following instructions. This
is also shown in the instructional video on the supplied CD-ROM.
1.
Turn off the power switch and unplug the power cord.
Warning
There are high voltage electrodes inside the printer. Before cleaning the
printer, make sure you have turned off the power switch and unplugged the
power cord from the power outlet.
Fig. 3-18 Turning off the switch and unplugging
2.
Use a damp cloth for cleaning.