| 摘要 |
PROBLEM TO BE SOLVED: To provide means for realizing a lock structure for holding a printing fluid cartridge in a cartridge attaching part with a simple configuration.SOLUTION: In a process of inserting an ink cartridge 30 into a cartridge attaching part 110, a contact piece 65 contacts an engagement member 145 to rotate the engagement member 145 to a first position in an arrow 67 direction and elastically deforms a coil spring 64. As the ink cartridge 30 reaches an attaching position of the cartridge attaching part 110, the engagement member 145 at the first position is engaged with a portion to be engaged 45, and the ink cartridge 30 is held by the attaching position against energizing force of the coil spring 64. As the engagement member 145 is rotated from the first position to a second position in an opposite direction from the arrow 67 in a state where the ink cartridge 30 is held at the attaching position, the ink cartridge 30 is moved in an opposite direction from an insertion direction 56 by the energizing force of the coil spring 64. |
