Brother HL 1240 - B/W Laser Printer Service Manual page 299

!
Caution
Do not touch the electrodes shown below to prevent damage to the printer caused by
static electricity.
    5.
Open the rear cover and pull the jammed paper out of the fuser unit.
If you have to pull the paper towards the back of the printer, the fuser may get dirty
with toner powder and may result in toner scatter on the next printed page or pages.
Print a few copies of the test page until the toner scatter on the printed pages stops.
    6.
Close the rear cover.
    7.
Install the drum unit assembly and close the front cover.
Fig. 4-9 Electrodes
Fig. 4-10 Pull the jammed paper
4-15
CHAPTER 4 TROUBLESHOOTING