Conceptual comparison of pixels per inch and dots per inch.
Generally speaking, you can already print good quality photographs and images with just a maximum of 72 DPI using laser or inkjet printers. There are times when printers are pre-set between 200 and 300 DPI, which is beyond what’s needed and wastes ink tremendously.
The ideal option for regular print jobs is “Draft” or “Fast Normal” mode, which equals about 72 DPI. When you need to enhance the resolution, you can quickly modify these settings anytime.