Does HP 672 print 6-inch photos with white edges at the bottom have anything to do with high-gloss photographic paper?

HP 672 prints 6-inch photos with white edges at the bottom, which has nothing to do with high-gloss photographic paper. The pixels and sizes taken by digital cameras are different, and sometimes they don't exactly match the sizes of the developed photos. The size of the equipment is specified. The aspect ratio of most digital photos is 4: 3, while the general 6-inch ratio is 3: 2. If the photos are developed in proportion, white edges will appear or some images will be cut off.