| 摘要 |
PROBLEM TO BE SOLVED: To prevent breakdown of a printing head or a printer body due to a refilling ink of an unknown origin by substantially preventing refilling of an ink by forming projecting parts with a specific pitch and height on the side wall surface of the outer wall of a printing head integral type cartridge. SOLUTION: An ink cartridge 30 comprises a cartridge body 31 produced integrally with a printing head by jointing such as die bonding, with the inside partitioned into three ink rooms 33. An inner lid 35 with air continuity holes 34 formed at positions corresponding to each ink room 33 is fixed thereon by thermal fusion or adhesion. Furthermore, an outer lid 38 with an atmosphere continuity hole 36 and an atmosphere room 37 is fixed thereon by thermal fusion or adhesion. An ink supply hole for a printing head 32 is provided on the bottom surface of each ink room 33 with an ink absorbing member disposed inside. Projecting parts 39 having a 10 mm or less pitch P and a 0.1 mm or more height D are formed on at least four surfaces of the outer wall surface so as to prevent closure after opening a hole or refilling. |
