| 摘要 |
PROBLEM TO BE SOLVED: To take out a used ink cartridge only when a new ink cartridge for replacement is prepared. SOLUTION: An ink cartridge 3, a cartridge holder 23 fitted with the ink cartridge 3 in a freely detachable and slip-off prevented state and the release member 30 being the accessory of the ink cartridge 3 and fitted to the ink cartridge 3 in a slip-off prevented state and releasing the slip-off prevented state of the ink cartridge 3 are provided. |
