Abstract: A replaceable ink supply module which provides replenishment of an inkjet printhead includes a collapsible bag, an enclosure box, a connective tube, and an on/off valve. These four components are incorporated into a composite sealed system which remains intact during shipment, storage, installation and operation. The collapsible bag is placed inside of the protective enclosure box and has an end-connect outlet permanently attached to one end of the connective tube. The other end of the connective tube carries a permanently attached on/off valve designed for periodic engagement with an inlet valve of an inkjet printhead.

Abstract: A printing system which provides active control of the vertical position of an off-carriage ink supply. The system includes an ink-jet print cartridge having an ink reservoir for holding a supply of liquid ink, and an ink replenishment port. A carriage holds the print cartridge, and a carriage scanning apparatus drives the carriage along a carriage scan axis. The system further includes an off-carriage ink supply which is connectable via a fluid path to the ink replenishment port of the cartridge. An elevator apparatus actively raises or lowers the off-carriage ink supply in response to drive commands to position the off-carriage ink supply at a plurality of different elevations relative to a vertical position of the print cartridge to supply ink to the ink replenishment port via the fluid path. The fluid path can be established intermittently, and disconnected during printing operations, or continuously established even during printing operations.

Abstract: A replaceable ink supply module which provides replenishment of an inkjet printhead includes a collapsible bag, an enclosure box, a connective tube, and an on/off valve. These four components are incorporated into a composite sealed system which remains intact during shipment, storage, installation and operation. The collapsible bag is placed inside of the protective enclosure box and has an end-connect outlet permanently attached to one end of the connective tube. The other end of the connective tube carries a permanently attached on/off valve designed for periodic engagement with an inlet valve of an inkjet printhead.

Abstract: An inkjet printing system with an automated ink replenishment station for replenishing printhead ink reservoirs mounted in a carriage from removable off-carriage ink supply containers. The system includes a printer frame and a scanning carriage mounted on the frame for traversing back and forth along a scan axis through a print zone. At least one printhead is mounted on the carriage, and has a sealed printhead ink reservoir and a normally closed inlet valve in fluid communication with the printhead ink reservoir for receiving ink. The ink replenishment station is located on the frame at one end of the scan axis, and includes an ink supply. A normally closed supply valve is provided at the ink replenishment station in communication with the ink supply capable of periodic connection to said inlet valve.

Abstract: A plurality of ink supply bags for an inkjet printer are each enclosed in a separate protective enclosure having a front opening for an end-connect outlet. The cross-section of the enclosure is a diamond shaped parallelogram so that when several of the enclosures are placed side-by-side, overlapping occurs between adjacent enclosures. This provides a decreased overall width for an ink supply station on the printer while at the same time still allowing use of a flattened collapsible bag inside each enclosure. The ink supply station includes a front-access storage shelf having separate divider walls which together with a floor define a series of slots which coincide with the outer shape of the enclosures for removably receiving and protectively holding the enclosures together on the printer in separated nesting relationship.

Abstract: A variable height reservoir system that allows for reliable ink replenishment to an on-carriage pen reservoir from an off-carriage ink reservoir on an as needed basis. The off-carriage reservoirs are mounted on a platform that is actively moved up and down in a vertical motion. A pen cartridge with an internal spring to provide vacuum pressure is intermittently connected to an off-carriage reservoir, by movement of the pen carriage to a refill station for ink replenishment. In the refill station, a valve is engaged into the pen, thus connecting the ink reservoir to the pen cartridge. Using only the vacuum pressure present in the pen cartridge, ink is pulled into the pen from the reservoir. The ink replenishment occurs in a first stage with the reservoir placed very close to the pen cartridge elevation, with only a small offset between the top of the ink reservoir and the pen nozzles.