dots per inch (DPI)
A measure of the level of detail that can be reproduced by a digital printer.
A typical inkjet printer can achieve 300 to 720 DPI, and a typical laser printer can achieve 600 to 2400 DPI.
The actual DPI achieved for a particular print job will depend on the configuration of the printer. (For example, some printers offer separate quality levels which trade off with speed.)
Because of the way that printers reproduce colour (by mixing Cyan, Magenta, Yellow, and Black inks), DPI does not correspond directly to the PPI (pixels per inch) of a digital image. The DPI must be 4 to 6 times higher than the PPI to faithfully reproduce the digital image in print at that PPI.
Also see: PPI.