we know that a digital picture have a property named DPI (that coulde be set by special sofwares such as photoshop) and any printer have a DPI setting in it’s setting too.
when printing a digital picture the picture’s DPI specifies the size of picture on paper in inches and printer’s DPI has no effect on printed picture size.
thus what is the role of the printer DPI setting ?
only picture’s DPI has effect on printed size !!!