In the ink cartridge with an inner pack and an outer pack, the gas-introduced outer pack has damage risk due to pressure of the ink.
本发明的课题在于，在内袋部和外袋部二重袋结构的墨盒中，导入空气的外袋部因供给墨加压，存在破损的危险。
In the ink cartridge with an inner pack and an outer pack, the gas-introduced outer pack has damage risk due to pressure of the ink.
本发明的课题在于，在内袋部和外袋部二重袋结构的墨盒中，导入空气的外袋部因供给墨加压，存在破损的危险。
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