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An ink jet recording apparatus including the ink jet head cartridge and the ink jet head cartridge with an ink reservoir, the ink storage tank
An ink jet recording apparatus including the ink jet head cartridge and the ink jet head cartridge with an ink reservoir, the ink storage tank
PURPOSE: To allow positive ink supply from an ink storage tank to a recording head part, as required. ;CONSTITUTION: An ink bag 4 for holding ink therein is coupled with a part 5 for feeding ink, as required, from the ink bag 4 to a recording head part 2. The supply part 5 is equipped with a bladder 7 made of elastic member having a flange part 7b and a slit 7a which is normally closed but opened upon occurrence of a predetermined pressure difference between the ink bag 4 and the recording head part 2, and a fixing base 6 to be fit with the peripheral part of the bladder 7. The flange part 7b is held between a bladder cover 8 and the fixing base 6 and secured in place. This structure prevent removal of the slit bladder 7 even when the ink pressure increases therein.;COPYRIGHT: (C)1994,JPO&Japio
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