Abstract: The present disclosure relates to cleaning a surface in a printing device, wherein a guiding member directs a stream of cleaning fluid towards the surface; and at least one barrier unit to confine the stream of cleaning fluid to a portion of the surface, wherein the at least one barrier unit guides air to provide at least one air curtain confining said stream of cleaning fluid to the portion of the surface.

Abstract: The present disclosure is drawn to scanning platforms. For example, a scanning platform can include an upper portion formed of a silicone polymer. The upper portion can include an upper surface that is chemically activated by a corona treatment. A layer of adhesion promoting compound can be bonded to the upper surface. The adhesion promoting compound can include a glycol, glycol ether, or combinations thereof.

Abstract: Compositions, systems, and methods for ink-jet printing having improved slewing decap time can comprise a pigment having an aryltricarboxyl group covalently attached thereto; at least 12 wt % of an anti-slewing decap cosolvent selected from the group consisting of 2-pyrrolidone, derivatized 2-pyrrolidone, and mixtures thereof; and a liquid vehicle.

Abstract: An optically clear fluid composition includes a vehicle including an organic solvent, a polymeric binder dispersed in the vehicle, and metal oxide particles dispersed in the vehicle. The metal oxide particles have an effective diameter ranging from about 20 nm to about 140 nm, and are chosen from metal oxide particles that are optically clear and have a refractive index that is larger than 1.65, and the metal oxide particles are only one type of metal oxide particle selected from the group consisting of aluminum oxide and zinc oxide.

Abstract: Examples of optically clear fluid compositions are disclosed herein. In one example, the optically clear fluid composition includes an aqueous vehicle, an anionic polymeric binder dispersed in the aqueous vehicle, and wax particles incorporated in the aqueous vehicle. The anionic polymeric binder has a glass transition temperature (Tg) that is higher than 40 C, and a pH ranging from about 7 to about 11. The wax particles have a particle size ranging from about 25 nm to about 75 nm, and a melting temperature (Tm) ranging from about 100 C to about 150° C. The optically clear fluid composition has a viscosity ranging from about 0.5 centipoise to about 90 centipoise.

Abstract: An optically clear fluid composition includes a vehicle including an organic solvent, a polymeric binder dispersed in the vehicle, and metal oxide particles dispersed in the vehicle. The metal oxide particles have an effective diameter ranging from about 20 nm to about 140 nm, and are chosen from metal oxide particles that are optically clear and have a refractive index that is larger than 1.65.

Abstract: The present disclosure provides inks, ink sets, and method for manufacturing inkjet inks. The inkjet ink comprises a colorant; a liquid vehicle; a surfactant; and a polyurethane binder, the polyurethane binder including polymerized monomers of a polyether polyol, a diisocyanate, and an acid polyol, where the polyurethane binder has a Mw from about 35K to 50K and an acid number from 51 to 60.

Abstract: A method of printing an image includes co-dispensing a compensation vehicle and an ink from an ink set to sites on a printing medium to form a printed image. A combined amount of the ink and the compensation vehicle dispensed to each site is at least substantially equal to a minimum site value that is predetermined for the ink set and the printing medium. The method further includes applying an amount of an overcoat liquid to the printed image to obtain a predetermined ratio of gloss to haze.

Abstract: A method of printing an image includes co-dispensing a compensation vehicle and an ink from an ink set to sites on a printing medium to form a printed image. A combined amount of the ink and the compensation vehicle dispensed to each site is at least substantially equal to a minimum site value that is predetermined for the ink set and the printing medium. The method further includes applying an amount of an overcoat liquid to the printed image to obtain a predetermined ratio of gloss to haze.

Abstract: Compositions, systems, and methods for ink-jet printing having improved black to color bleed control, reduced wicking, and/or reduced halo are described. The composition can include a functionalized carbon pigment dispersed in an ink vehicle. The carbon pigment includes functional groups chemically attached thereto. Suitable functional groups includes an aromatic ring structure having multiple carboxyl groups (or salts thereof) attached to the aromatic ring structure, wherein at least two of the multiple carboxyl groups are positioned on adjacent carbon atoms of the aromatic ring structure.

Abstract: An inkjet ink comprising polymeric fluoro-polymeric additives providing enhanced pen and print quality performance.

Abstract: A system and associated methods for printing matte and glossy images on a glossy media substrate including an ink set that includes at least one pigmented ink-jet ink including an anionic surface charged pigment dispersed in a first liquid vehicle and a substantially colorless matting liquid with at least one matting agent dispersed or solvated in a second liquid vehicle. Additionally, when the pigmented ink-jet ink is printed on the glossy media substrate alone, the pigmented ink-jet ink has a glossy appearance, and wherein when the colorless matting liquid is overprinted or underprinted with respect to the pigmented ink-jet ink on the glossy media substrate, the pigmented ink-jet ink combined with the matting liquid exhibits a visually perceptible matte appearance compared to the glossy appearance of the ink-jet ink printed alone.

Abstract: A brightening system includes a substrate and an amphoteric stilbene composition established on the substrate. The amphoteric stilbene composition includes a predetermined amount of at least one of 4,4?-diamino-2,2?-stilbene disulfonic acid, biarylsulfonate-4,4?-diamino-2,2?-stilbene disulfonic acid, biaryldisulfonate-4,4?-diamino-2,2?-stilbene disulfonic acid, derivatives thereof, salts thereof, and mixtures thereof; and a fixing agent.

Abstract: The present invention is drawn toward ink-jet inks, coating compositions, methods of printing durable images, and fluoro-diol-modified polyurethanes. The ink-jet ink can comprise a liquid vehicle, a colorant, and a fluoro-diol-modified polyurethane binder having a weight average molecular weight from about 3,000 Mw to about 180,000 Mw, wherein each side chain of the binder has no more than 15 fluoro substitutions.

Abstract: A brightening system includes a substrate and an amphoteric stilbene composition established on the substrate. The amphoteric stilbene composition includes a predetermined amount of at least one of 4,4?-diamino-2,2?-stilbene disulfonic acid, biarylsulfonate-4,4?-diamino-2,2?-stilbene disulfonic acid, biaryldisulfonate-4,4?-diamino-2,2?-stilbene disulfonic acid, derivatives thereof, salts thereof, and mixtures thereof; and a fixing agent.

Abstract: A system and associated methods for printing matte and glossy images on a glossy media substrate comprising an ink set that comprises at least one pigmented ink-jet ink including an anionic surface charged pigment dispersed in a first liquid vehicle and a substantially colorless matting liquid with at least one matting agent dispersed or solvated in a second liquid vehicle. Additionally, when the pigmented ink-jet ink is printed on the glossy media substrate alone, the pigmented ink-jet ink has a glossy appearance, and wherein when the colorless matting liquid is overprinted or underprinted with respect to the pigmented ink-jet ink on the glossy media substrate, the pigmented ink-jet ink combined with the matting liquid exhibits a visually perceptible matte appearance compared to the glossy appearance of the ink-jet ink printed alone.

Abstract: The present invention is drawn toward ink-jet inks, coating compositions, methods of printing durable images, and fluoro-diol-modified polyurethanes. The ink-jet ink can comprise a liquid vehicle, a colorant, and a fluoro-diol-modified polyurethane binder having a weight average molecular weight from about 3,000 Mw to about 180,000 Mw, wherein each side chain of the binder has no more than 15 fluoro substitutions.

Abstract: Systems and methods for providing smudge resistant and durable ink-jet images are provided. Specifically, a system for printing durable ink-jet ink images can comprise a first printhead containing a fixer composition including a charged fixer component, wherein the first printhead is configured for ink-jet printing the fixer composition on a substrate. The system can further comprise a second printhead containing an ink-jet ink, wherein the second printhead is configured for ink-jet printing the ink-jet ink composition over the fixer composition. The ink-jet ink can also include a colorant carrying an opposite charge with respect to the charged fixer component. A third printhead containing a polymer overcoat composition can also be present, and can be configured for ink-jet printing the polymer overcoat composition over ink-jet ink composition. The polymer of the polymer overcoat composition can also carry an opposite charge with respect to the charged fixer component.

Abstract: Self-dispersed pigment ink formulations and systems employing the same are disclosed.

Abstract: An inkjet ink comprising polymeric fluoro-polymeric additives providing enhanced pen and print quality performance.