| 摘要 |
PURPOSE:To use ink without waste in an ink jet recorder by forming at least part of side of an ink containing bag in a multistage wall shape, and providing at least a control frame at the fold of the wall of one stage. CONSTITUTION:An ink containing bag 22 is secured through a housing 24 to the vessel body 21 of an ink cartridge, and a cap 26 for passing through a hollow needle of a recorder side is secured by a plug 25 in the housing 24. The bag 22 is formed in a flat shape of multistage wall for enhancing the volumetric efficiency, control frame 28 which freely moves down as the ink reduces is inserted to the recess of the side fold 22A, thereby preventing the fold 22A from wrinkling or the gas 22 from abnormally deforming. Thus, ink can be used without waste, pressure characteristic becomes preferable, and volumetric efficiency can be enhanced. |
