| 摘要 |
PROBLEM TO BE SOLVED: To carry out an initial introduction of ink into the recording head without generating air bubbles in ink even after being stored for a long period of time by securely preventing storage liquid in the recording head from evaporating. SOLUTION: An ink jet printer recording head unit 17 with storage liquid put in the interior part of a recording head 18 is such that the nozzle surface side of the recording head 18 is sealed by a nozzle protector 1 in its delivery state, and the ink cartridge mounting side thereof is sealed by a sealing member 40 in order to prevent the leakage of storage liquid from the interior part of the recording head 18 and, in addition, it is housed in an air tight manner by a gas impermeable bag-like sheet material 50. In this structure, storage liquid is prevented from evaporating positively, so that the interior part of the recording head 18 can be avoided from becoming dry even in storage for a long period of time. |
