Abstract: The present invention relates to an inkjet ink comprising: a) colorant; b) a polymeric binder having an acid number below 200 selected from the group consisting of a styrene-acrylic polymeric binder, an acrylic polymeric binder, an anionic polyurethane binder and combinations thereof; c) water dispersible surfactant; and d) a solvent which does not dissolve an acidified form of the binder, the solvent having a vapor pressure less than 0.1 mm at 25° C. The invention further relates to methods of making using the ink, printing systems and ink sets which use this ink.

Abstract: A lamp assembly including an integral reflector and heat sink having a reflector portion comprising an integrated heat sink and a plurality of integral cooling fins connected to the integrated heat sink, a cathode assembly mechanically coupled to the reflector portion, an anode mechanically coupled to the reflector portion and electrically isolated from the cathode assembly, and at least one thermal stress reduction feature.

Abstract: The present invention relates to an inkjet ink comprising: a) colorant; b) a polymeric binder having an acid number below 200 selected from the group consisting of a styrene-acrylic polymeric binder, an acrylic polymeric binder, an anionic polyurethane binder and combinations thereof; c) water dispersible surfactant; and d) a solvent which does not dissolve an acidified form of the binder, the solvent having a vapor pressure less than 0.1 mm at 25° C. The invention further relates to methods of making using the ink, printing systems and ink sets which use this ink.

Abstract: A method includes ejecting a coupling agent onto a substrate. A structure includes. a substrate and a pattern of a coupling agent applied to the substrate.

Abstract: A lamp assembly including an integral reflector and heat sink having a reflector portion comprising an integrated heat sink and a plurality of integral cooling fins connected to the integrated heat sink, a cathode assembly mechanically coupled to the reflector portion, an anode mechanically coupled to the reflector portion and electrically isolated from the cathode assembly, and at least one thermal stress reduction feature.

Abstract: The present invention is drawn to ink-jet ink compositions, methods, and systems for reducing satellite spotting around a printed image. Specifically, an aqueous ink-jet ink composition exhibiting a reduction in aerosol formation during printing, comprises an effective amount of an ink vehicle; an effective amount of at least one ink colorant; and from 5 to 200 ppm of a high molecular weight polysaccharide.

Abstract: A collection spittoon with a vacuum connection draws air and ink ejected during service spitting through an opening in the top of the spittoon. The collected ink includes main ejected drops and aerosol generated during the service process. A method for servicing an inkjet printhead comprises positioning the printhead over an opening in a spittoon chamber, establishing an air flow into the chamber through the opening, actuating the printhead to spit ink droplets in a service mode, and collecting the ink droplets and associated aerosol by drawing the ink droplets and aerosol into the chamber with the air flow.

Abstract: The present invention is drawn to ink-jet ink compositions, methods, and systems for reducing satellite spotting around a printed image. Specifically, an aqueous ink-jet ink composition exhibiting a reduction in aerosol formation during printing, comprises an effective amount of an ink vehicle; an effective amount of at least one ink colorant; and from 5 to 200 ppm of a high molecular weight polysaccharide.

Abstract: Improved methods and apparatuses are provided for use in printing color swaths in a bi-directional printing device. The bi-directional printing device is configured to use a plurality of color inks including at least one light color ink and at least one dark color ink. One method includes selectively printing at least one dark color ink on a print media based on a non-uniform probabilistic print mask function, and selectively printing at least one light color ink on the print media based on a substantially uniform probabilistic print mask function.

Abstract: A collection spittoon with a vacuum connection draws air and ink ejected during service spitting through an opening in the top of the spittoon. The collected ink includes main ejected drops and aerosol generated during the service process. A method for servicing an inkjet printhead comprises positioning the printhead over an opening in a spittoon chamber, establishing an air flow into the chamber through the opening, actuating the printhead to spit ink droplets in a service mode, and collecting the ink droplets and associated aerosol by drawing the ink droplets and aerosol into the chamber with the air flow.

Abstract: The present invention includes as one embodiment a method of controlling an inkjet printhead assembly, including providing the printhead assembly having ink ejection elements that eject ink from a firing chamber through a nozzle and being energizable by an electrical pulse having a first predetermined energy, monitoring the printhead assembly to determine elapsed time since each ink ejection element on the printhead assembly has been fired, calculating a predetermined maximum amount of time that an ink ejection element is not operating using ink formulation and geometry of the nozzle and the firing chamber, comparing the elapsed time for each ink ejection element on the printhead assembly with the predetermined maximum amount of time and initiating high energy spitting at a second predetermined energy for the printhead assembly if the predetermined maximum amount of time has been exceeded for at least one of the ink ejection elements on the printhead assembly.

Abstract: A method for minimizing cross-contamination of print cartridges in an inkjet printing system due to aerosol drift by employing a bi-directional spitting scheme coupled with a configuration of the print cartridges. The method includes a carriage for traversing across a print medium and a spittoon, the carriage having a plurality of N receptacles, the receptacles identified from left to right as positions 1 through N, includes mounting a reactive print cartridge in either positions 1 and N, or both, on the carriage, the reactive print cartridges having a plurality of nozzles for ejecting reactive droplets and mounting a plurality of print cartridges in the remaining positions on the carriage, the print cartridges having a plurality of nozzles for ejecting ink droplets.