Ink cartridge for attaching in line supply type inkjet recording device e.g. printer, has projection, where total length of end of projection extending to end of retaining portion is measured along insertion direction

摘要

The cartridge (60) has a connection section (67) arranged at a wall (70). Interior and exterior of an ink chamber are connected with each other. A projection (76) is arranged adjacent to a bottom wall (71). An end of the projection protrudes as an end of another projection (75) in insertion direction (50b). Length extending from the end of the former projection to a rear end of the bottom wall in the direction is less than total length of the cartridge. Total length of the end of the former projection extending to an end of a retaining portion (74) is measured along the direction.