Brother HL-7050 Series User Manual page 57

Make sure that the paper is neatly stacked and in the proper
position on the multi-purpose tray. If it is not, the paper may
not be fed correctly, resulting in a skewed printout or a paper
jam.
5
While pressing the [blue] paper-guide release lever, slide the
paper guide to fit the paper size.
WARNING
Do not touch transparencies that have just been printed because
they will be very hot!
When you put paper in the multi-purpose tray, please
remember the following:
During printing, the inside tray rises to feed paper into the
printer.
The print surface must be face up.
Put the leading edge of the paper in first and push it gently
into the tray.
The top of the paper stack must be under the maximum
paper marks that are on both sides of the tray.
1 - 38 ABOUT THIS PRINTER
Figure 1-32