B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
B41J 2/175 (2006.01)
Patent
CA 2191548
An ink cartridge for an ink jet printer has a housing containing a,n ink storage space. An upper portion of the ink storage space is closed off by a cup-shaped membrane. A pressure reduction valve is built into a housing bottom. The storage space communicates via the pressure reduction valve with a chamber which has an opening sealed by a rubber plug. During installation of the cartridge in the print head, the rubber plug is pierced by a hollow needle so that ink may pass from the chamber to the print head. The reduction valve ensures a predetermined underpressure in chamber. This facilitates reliable operation of the print head, even with fluctuating ambient temperature, and provides efficient space utilization within the housing.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Nu-Kote International Inc.
Pelikan Produktions Ag
LandOfFree
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