The digital image printing requires a few numbers of components that comprises the total process of printing. This discussion is thus primarily focused towards analyzing and understanding this whole experience of digital camera printers.
In response to this trend, there's been a move afoot lately by several printer and camera manufacturers to let users go directly from their camera to a printer, cutting out the computer as the "middleman." By way of (very) brief background, dye-sub printers work by evaporating precisely controlled amounts of colored dyes from a carrier ribbon onto the print paper. The key difference between dye-sub printing and inkjet technology is that the dots laid down by a dye-sub printer are continuous-tone, meaning that they can have varying levels of density. While some inkjet printers can deposit slightly different sizes of dots, inkjet technology in general builds up tonal gradations by "dithering" fixed-size dots of color across larger areas.
Looking at the advantages of these digital camera printers, the very first and the most significant one is that these printers do not require a computer for their functioning. They have the ability of printing directly from the digital camera, which enables the users to take and use them on the road too! The thermal printer does not require ink due to the presence of tiny colour crystals embedded in the paper which are heat-activated when a photograph is taken.
Some digital cameras nowadays enable the users to connect them directly to a PictBridge printer using a standard USB cable. And then obtain the printed photographs. Another loom is to include memory-card slots right on the printer as a result the users do not run down the camera's battery while printing.
Links: