Ink tank cartridge that prevents leakage of residual ink and ink jet recording apparatus using same
July 15, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInk supply container for ink writing systems Liquid jet recording process and liquid jet recording head Ink jet recording method Ink control system for ink jet printer Ink disposal system for ink jet printer Ink supplying mechanism Liquid jet recording device Droplet generating method and apparatus thereof Purging system for ink jet recording apparatus Liquid jet recording head InventorsAssigneeApplicationNo. 275252 filed on 07/15/1994US Classes:347/86, Cartridge347/84Fluid or fluid source handling meansExaminersPrimary: Grimley, A. T.Assistant: Brase, Sandra L. Attorney, Agent or FirmForeign Patent References
International ClassB41J 002/175Foreign Application Priority Data1990-12-10 JPAbstractAn ink jet recording apparatus is designed to prevent leakage of ink from an ink tank cartridge with recording ink stored therein when the cartridge is removed. A flexible ink bag is sandwiched between an upper plate and a lower plate so that the-upper plate can be moved as the ink bag contracts as the ink is consumed. When the ink is almost gone, the upper plate is held by a latch on the lower plate, and movement of the ink bag is suppressed. Leakage of ink from a stopper that provides access to the ink bag is prevented by sealing members on the upper and lower plates. Thus, when the cartridge is replaced, no ink will be applied. | |
