Epson Action Laser Action Laser User Manual page 45

2. Locate the density control knob, which is in the front right
comer inside the printer.
3. To make the print darker, turn the knob clockwise.
Note: Increasing the print density increases toner
consumption. If you increase the print density, you need to
replace the toner cartridge more frequently.
Darker
4. To make the print lighter, turn the knob counterclockwise.
Note: If you wish to return the print density to the factory
default setting, point the arrow on the knob toward the gray
dot on the printer case.
Testing and Connecting Your Printer
Testing the Printer
Lighter
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