Patent ID: 6102535
Filing Date: 2000-08-15
Classification: B41J

Abstract:
An ink cartridge with closing device for ink jet printers and similar writing, printing or drawing units, wherein the ink cartridge is adapted to be releasably mounted in a printer, and wherein the ink cartridge is configured to be filled manually or automatically with ink from an external tank, the ink cartridge comprising a housing, an ink reservoir formed by the housing, and a refill opening in the housing, wherein the refill opening is closeable by the closing device, the closing device comprising at least two different elements, the elements including a first element for sealing the refill opening, the first element being comprised of a plug or a closing cap, and another element comprised of an air-permeable compensating cap and comprising a compensating body, wherein the compensating body in a state of use is impregnated with writing agent, a surface-active agent or tenside, with water, organic solvent or another liquid, and wherein the at least two elements are configured so as to be exchangeable against each other or connectable to each other and so as to be mountable on the ink cartridge or on each other.