What is the DPI that printers often talk about?
Answer:
Indicates the clarity of the image, that is, the number of all ink droplets ejected onto the medium per unit size [dots of ink droplets per inch (dpi)].
What is the NPI that printers often talk about?
Answer:
Refers to the number of nozzles per inch on the nozzle. This value is a physical fixed value, also called physical resolution.