1) Highest resolution photo imaging without any graininess. (4-pl ink droplets; new light-and-dark ink with light ink density of 1/6.) 2) Optionally available 600 dpi scanner cartridge. 3) Both IEEE1284-compatible, 8-bit parallel interface and USB interface, as standard equipment. 4) Individually replaceable ink tanks for each color for reduced running costs. 5) Ink-low detection using both optical and dot-counting systems and translucent ink tanks allow visual checking of the ink level. 6) A mechanism to allow manual correction of print position misalignment of each color, as well as in bi-directional printing. 7) A function to notify of the optimum head gap setting of the paper thickness lever.