Samsung ML-3050 - Manual (Page 20)

2.7
<System setup>
Using toner save mode
Toner save mode allows the printer to use less toner on each page.
Activating this mode extends the life of your toner cartridge and reduces
your cost per page beyond what one would experience in the normal
mode, but it reduces print quality. This setting is not available with the
1200 dpi setting.
There are two ways to enable this mode:
Using the control panel button
Press Toner Save on the control panel. The printer must be in Standby
mode; the Status LED lights green and Ready is shown on the display, if
you use the ML-3051N or ML-3051ND.
• If the button backlight is on, the mode is enabled and the printer uses
less toner to print a page.
• If the button backlight is off, the mode is disabled and the printer prints
in normal mode.
From the software application
You can set toner save mode from the printer properties window on your
printer driver. See the Software Section.