Setting the Print Quality

You can adjust brightness.
NOTE
Depending on the printer model you are using, this function may not be supported or the functions you can use may vary.
1.
Select the device you are using from [Printer].
To display all options:
In Mac OS X 10.7 or later, click [Show Details] at the bottom of the screen.
2.
Select [Basic] from the pop-up menu.
3.
Adjust [Brightness].
If [Adjustments] is displayed, click [Adjustments] and set [Brightness].
4.
Click [Print].