| 摘要 |
PROBLEM TO BE SOLVED: To find positions wherein ink cartridges of a plurality of colors are attached by a simple structure. SOLUTION: Ink cartridges 50, 60, 70, 80 of a plurality of colors are detachably attached to a head holder 31 equipped with ink jet mechanisms 32, 33, 34, 35 of a plurality of colors. Then, the head holders 31, a connected cylinder part 38 of respective ink jet mechanisms, and a seal member 39 are manufactured by white series, grey series, or transparent series. When the ink cartridge is attached, a position in contact with ink in the ink cartridge is colored by the ink, or a part of the head holder is colored by the ink dropped in exchange of the ink cartridge. Hereafter, a position wherein the ink cartridge of that color is attached can be found thereby. |
