Brother HL-1070 - Manual (Page 55)

USER’S GUIDE
5–10
ADJUSTING THE PRINT DENSITY
The print density dial is located inside the printer. You can use it to adjust
the amount of toner applied to the paper.
When the toner cartridge and drum unit are replaced, or if the operating
temperature and humidity are high or low, print conditions may change
causing darker or lighter printouts.
Use a screwdriver to turn the print density dial gently clockwise for
darker printouts and counterclockwise for lighter printouts. The dial has
been factory set to the middle position.
Lighter Darker
Fig. 5-17 Adjusting the Print Density Dial
Warning
After you have just used the printer, some internal parts of the
printer are extremely hot. When you open the top cover of the
printer, never touch the shaded parts shown in the following
illustration.
High Temperature
Fig. 5-18 Inside the Printer