LPI is an abbreviation for „lines per inch“.
Similar to DPI or PPI, LPI Lines per inch (LPI) is a measurement of printing resolution. A line consists of halftones built up by physical ink dots made by the printer device to create different tones. Specifically LPI is a measure of how close together the lines in a halftone grid are. The quality of printer device or screen determines how high the LPI will be. High LPI indicates greater detail and sharpness.
Conversion of the LPI to DPI can be done by simple multiplication: z.B. 150 LPI x 16 = 2400 DPI