Abstract: A printing system with an ink supply, a feed line coupled to the ink supply, a return line coupled to the ink supply, a plurality of printheads each fluidically coupled to the first and return lines and a bypass line coupling the feed line to the return line.

Abstract: A printing system that has a drive roller for feeding different sizes of media along a media path, an inkjet printhead assembly for printing the media and an ink aerosol collection system for removing ink aerosol from areas adjacent the media path. The ink aerosol collection system is configured to remove aerosol at a greater rate in response to an increase in the media size.

Abstract: A wide format printer that has a media feed assembly for feeding different sizes of media along a media path having a width from 914 mm (36 inches) to 1372 mm (54 inches), a printhead assembly positioned on a first side of the media path and spanning the width of the media path, an aerosol collection duct with an opening on the first side of the media path and a spittoon system positioned on a second side of the media path opposing the first side. The printhead assembly is configured to eject non-printing ink drops from any section not required to print media that is less than the maximum width, and the spittoon system is configured to collect the non-printing ink drops.

Abstract: A printing system that has a media transport system configured to transport media of differing dimensions along a media path, a printhead assembly for printing media transported along the media path, the media path having differing widths depending on the dimensions of the media and, a plurality of service modules for the printhead assembly. Each of the service modules is configured to operate in a plurality of different modes. During use, the media path extends between the printhead assembly and at least some of the service modules configured to operate in one of the modes while any of the service modules beyond the media path operate in another of the modes.

Abstract: An inkjet printer that has a print zone, a media path extending through the print zone along a paper axis, a printhead carriage with a plurality of printhead mounting sites for mounting a plurality of printhead modules adjacent the print zone such that the printhead modules collectively span the media path and a plurality of interfaces for supplying ink to, and receiving ink from each of the printhead modules respectively.

Abstract: A printing system that has a print zone, a media path extending through the print zone along a paper axis, a printhead carriage with a plurality of printhead mounting sites for mounting a plurality of printhead modules adjacent the print zone such that the printhead modules collectively span the media path, the printhead carriage having a long side extending transverse to the paper axis, the long side having access formations for ink conduits and a plurality of interfaces for connection to the ink conduits to supply ink to each of the printhead modules respectively. All ink for the plurality of printhead modules is supplied by ink conduits extending through the access formations on said long side of the printhead carriage.

Abstract: A printing system that has an ink supply, a feed line coupled to the ink supply, a return line coupled to the ink supply, a plurality of printheads each fluidically coupled to the feed and the return lines via separate couplings. Each of the printheads receives ink from both the feed and the return lines.

Abstract: A printing system that has a printhead assembly, a drive roller for feeding media along a media path and a vacuum platen assembly configured for movement relative to the fixed printhead assembly.

Abstract: A printing system that has an inkjet printhead assembly for printing media fed along a media path, and an aerosol collection system for collecting ink aerosol generated by the printhead assembly. The printhead assembly is positioned on a first side of the media path and the aerosol collection system has a first aerosol collection opening positioned on the first side of the media path and a second aerosol collection opening positioned on a second side of the media path.

Abstract: A wide format printer that has an inkjet printhead assembly for printing media fed along a media path that is more than 432 mm (17 inches) wide, and an aerosol collection system for collecting ink aerosol generated by the printhead assembly. The printhead assembly is positioned on a first side of the media path and the aerosol collection system has a first aerosol collection opening positioned on the first side of the media path and a second aerosol collection opening positioned on a second side of the media path.

Abstract: A wide format printer that has a drive roller configured to engage and push media into a print zone and a movable media engagement assembly configured to engage one side of the media and pull the media while the drive roller remains engaged with the media wherein the print zone is more than 432 mm (17 inches) wide.

Abstract: A printing system that has an ink supply, an accumulator reservoir, a valve coupling the accumulator reservoir to the ink supply, the valve being configured to open when the ink level in the accumulator reservoir reaches a lower limit of a predetermined ink level range, and close when the ink level in the accumulator reservoir reaches an upper limit of the ink level range, and a plurality of printheads in fluid communication with the accumulator reservoir. Each of the printheads has nozzles for ejecting ink onto media. During printing, the accumulator reservoir is fixed relative to the printheads such that hydrostatic ink pressure at the nozzles is generated by the elevation of the ink level in the accumulator reservoir relative to the elevation of the of the nozzles.

Abstract: A printing system that has a media feed assembly for feeding different sizes of media along a media path, the media path having a width corresponding to a maximum width of media that can be printed by the printing system. The system also having a printhead assembly positioned on a first side of the media path and spanning the width of the media path, an aerosol collection duct with an opening on the first side of the media path and a spittoon system positioned on a second side of the media path opposing the first side. The printhead assembly is configured to eject non-printing ink drops from any section not required to print media that is less than the maximum width, and the spittoon system is configured to collect the non-printing ink drops.

Abstract: A wide format printer that has a print zone, a media path extending through the print zone along a paper axis, the media path being more than 432 mm (17 inches) wide, a printhead carriage for mounting a plurality of printhead modules adjacent the print zone such that the printhead modules collectively span the media path and are staggered with respect to the paper axis. The printhead modules each have nozzles arranged in parallel rows and a plurality of datum features for holding the printhead carriage such that the parallel rows extend normal to the paper feed axis.

Abstract: An inkjet printing system that has a vacuum platen assembly, a printhead assembly spaced from the vacuum platen assembly and a media encoder embedded within the vacuum platen assembly.

Abstract: A print engine for an inkjet printer which has a media path extending past a printhead assembly along a paper axis, has an elongate printhead carriage extending transverse to the paper axis, a series of interfaces for supplying ink to respective printhead modules spaced along the printhead carriage such that during use, the printhead modules span the media path and ink conduits connected to the interfaces for feeding ink to the printhead modules. The printhead carriage has a series formations to position the ink conduits such that they all extend away from the interfaces in a direction transverse to the long axis to a common side of the printhead carriage.

Abstract: A printing system that has an ink supply, a feed line coupled to the ink supply, a return line coupled to the ink supply, a plurality of printheads each coupled to the feed line and the return line and a pumping system configured to generate fluid flow from the feed line to the return line via the printheads to prime the printheads.

Abstract: A wide format printer that has a vacuum platen assembly, a printhead assembly spaced from the vacuum platen assembly, a media path extending between the vacuum platen assembly and the printhead assembly and a media encoder embedded within the vacuum platen assembly wherein, the media path is greater than 432 mm (17 inches) wide.

Abstract: A printing system with a print zone where droplets of ink print onto media, a drive roller configured to translate the media into the print zone and a movable media engagement assembly for vacuum engagement of one side of the media to draw the media away from the print zone.

Abstract: A wide format printer that has a printhead assembly with nozzles for ejecting ink onto media fed along a media path more than 432 mm (17 inches) wide, a plurality of ink containers, a plurality accumulator reservoirs, each having an inlet for connection to one of the ink containers, an outlet for connection to the printhead assembly and a fluid level regulator for maintaining fluid levels in the reservoir within a controlled fluid level range. During use, the plurality of ink accumulator reservoirs are mounted at a fixed elevation relative to the nozzles such that hydrostatic fluid pressure at the nozzles is maintained within a predetermined range.