Abstract: Apparatus is described which, in use, applies a thin film of a wetting agent, such as water or a water-based solution, onto paper or other print medium before applying a liquid toner. The wetting agent is applied at a predetermined distance from an image transfer area. The wetting agent acts to promote adhesion of the liquid toner to the print medium. The adhesion of the liquid toner to the print medium is further improved by supplying the wetting agent at a temperature higher than room temperature.

Abstract: The present disclosure relates to a method for concentrating a substance, which may be an electrostatic printing ink. An apparatus for concentrating a substance is also described.

Abstract: According to one example, there is provided a visual security feature. The visual security feature comprises a security feature printed on a media. The security feature includes a security code printed on the media, and a holographic image is embossed on the printed security feature.

Abstract: An intermediate transfer member (34) (ITM) transfers ink solids from an image bearing surface to a substrate. The ITM has an outermost surface having an absorptivity of less than or equal to about 5 percent when measured after 36 hours of immersion in Isopar L at 100 degrees Celsius. An imaging liquid developer system (22) deposits the ink solids and an ink solids carrier onto the outermost surface of the ITM, wherein the imaging liquid developer system (22) is configured to supply the ink solids carrier at a reduced thickness or reduced density as compared to more absorptive ITMs.

Abstract: A printing system utilizing inks with high solids content includes a mixing unit for receiving a high solids content ink and producing a concentrated ink and an interim tank for receiving the concentrated ink from the mixing unit. An ink tank receives the concentrated ink from the interim tank and produces printing ink. An liquid electro-photographic print engine receives the printing ink from the ink tank. A fluid return line is connected between the mixing unit and at least one of the interim tank and the ink tank, the mixing unit receiving fluid from at least one of the interim tank and the ink tank and mixing the fluid with the high solids content ink. A method for liquid electro photographic printing using high solid content ink is also provided.

Abstract: An intermediate transfer member (34) (ITM) transfers ink solids from an image bearing surface to a substrate. The ITM has an outermost surface having an absorptivity of less than or equal to about 5 percent when measured after 36 hours of immersion in Isopar L at 100 degrees Celsius. An imaging liquid developer system (22) deposits the ink solids and an ink solids carrier onto the outermost surface of the ITM, wherein the imaging liquid developer system (22) is configured to supply the ink solids carrier at a reduced thickness or reduced density as compared to more absorptive ITMs.

Abstract: Disclosed herein is a method for electrostatic printing, wherein the method comprises (a) providing an ink composition comprising particles comprising a resin, wherein the ink composition contains less than 0.3 mg of charge director per g of solids in the ink composition; (b) passing the ink composition between a first electrode and a developer roller, wherein sufficient potential is applied between the developer roller and the electrode such that the resin particles are charged and adhere to the developer roller; (c) transferring at least some of the particles from the developer roller to a photoimaging plate to form an image on the photoimaging plate; and (d) transferring the image from the photoimaging plate to a print medium. Also disclosed here is an apparatus for carrying out the method, and a print medium printed using the method.

Abstract: Disclosed herein is a method for concentrating an ink composition, wherein the method comprises the steps of: (a) providing an ink composition, the ink composition comprising a liquid carrier and particles comprising a resin and a colorant, and wherein the ink composition contains less than 0.

Abstract: An image forming apparatus includes a photoconductive member to move in a rotational direction, a charging unit to charge the photoconductive member, a discharging unit to discharge a portion of the photoconductive member to form a latent image thereon, and a plurality of ink applicator units to sequentially apply a plurality of ink layers, respectively, toward the latent image to form an ink image. The image forming apparatus may also include an image transfer blanket to receive the ink image including the plurality of ink layers from the photoconductive member.

Abstract: The present application relates to a method for concentrating an ink for an electrostatic printing process, wherein the method comprises the steps of: (a) providing the ink for an electrostatic printing process, the ink comprising chargeable particles in a liquid carrier; (b) passing the ink between a chargeable conveyor and a first electrode, wherein a potential is applied such that the ink becomes adhered to the chargeable conveyor; (c) passing the ink on the conveyor past a moving surface, wherein the ink contacts the moving surface and a potential is applied between the conveyor and the moving surface, such that the chargeable particles are disposed to move toward the conveyor and some of the liquid carrier is removed to increase the concentration of the chargeable particles in the liquid carrier on the conveyor to form a concentrated ink on the conveyor, the conveyor and the moving surface then diverging from one another, such that substantially all of the concentrated ink remains on the conveyor; (d)

Abstract: A marking agent concentration method includes concentrating the marking agent by removing at least some liquid carrier between particles without substantially removing retained liquid carrier within the particles and without substantially modifying the particle structure, which is supported by the retained liquid carrier. The concentrated marking agent is supplied to distributors or end users of liquid marking agent. A concentrated marking agent includes solid clumps of agglomerated particles and a liquid carrier retained within the particles' individual structure. The clumps exhibit a median size greater than 90 ?m. The concentrated marking agent exhibiting a solids content of from 40 wt % to less than 90 wt %. A hard imaging method includes combining a concentrated marking agent with additional liquid carrier, applying a shear force, dispersing particles from clumps, forming a liquid marking agent, and forming a hard image using the liquid marking agent.

Abstract: An embossing apparatus includes an embossing die that includes a printed relief pattern made up of multiple layers of a deposited material. A resilient surface presses media against the embossing die such that embossed features corresponding to the embossing die are formed in the media. A method for embossing media includes forming an embossing die by depositing multiple layers of ink on a impression layer to form a relief pattern and pressing media against the embossing die to transfer the relief image to the media.

Abstract: An intermediate transfer member (34) (ITM) transfers a toner image from an image bearing surface to a substrate. The ITM has an outermost surface having a roughness of less than or equal to about 300 Angstroms root-mean-square (RMS). An imaging liquid developer system (22) sequentially deposits differently colored layers of pigment containing material onto the outermost surface, wherein at least one of the layers has a final film thickness of less than or equal to 1 ?m at 100 percent coverage.

Abstract: A printing system utilizing inks with high solids content includes a mixing unit for receiving a high solids content ink and producing a concentrated ink and an interim tank for receiving the concentrated ink from the mixing unit. An ink tank receives the concentrated ink from the interim tank and produces printing ink. An liquid electro-photographic print engine receives the printing ink from the ink tank. A fluid return line is connected between the mixing unit and at least one of the interim tank and the ink tank, the mixing unit receiving fluid from at least one of the interim tank and the ink tank and mixing the fluid with the high solids content ink. A method for liquid electro photographic printing using high solid content ink is also provided.

Abstract: An image forming system and a method to order at least two print jobs in a print queue of an image forming system are provided herein. The method ranks the at least two print jobs set in the print queue based on at least one print characteristic. The method resets an order of the at least two print jobs in the print queue based on the rank, such that a first page of a second print job is ordered prior to a last page of a first print job.

Abstract: A method is presented for automatically controlling the spacing between printer drums. The printer includes at least two print drums (920.1, 920.2) whose parallel rotation leads to image transfer, either between the drums or onto a printed surface. First the pressure a signal indicative of the pressure between the two print drums is obtained by a measurement unit (930), and then the gap between the drums is automatically adjusted in accordance with the indicator signal by a gap adjuster (940).

Abstract: An intermediate transfer member (34) (ITM) transfers a toner image from an image bearing surface to a substrate. The ITM has an outermost surface having a roughness of less than or equal to about 300 Angstroms root-mean-square (RMS). An imaging liquid developer system (22) sequentially deposits differently colored layers of pigment containing material onto the outermost surface, wherein at least one of the layers has a final film thickness of less than or equal to 1 ?m at 100 percent coverage.

Abstract: An intermediate transfer member (34) (ITM) transfers ink solids from an image bearing surface to a substrate. The ITM has an outermost surface having an absorptivity of less than or equal to about 5 percent when measured after 36 hours of immersion in Isopar L at 100 degrees Celsius. An imaging liquid developer system (22) deposits the ink solids and an ink solids carrier onto the outermost surface of the ITM, wherein the imaging liquid developer system (22) is configured to supply the ink solids carrier at a reduced thickness or reduced density as compared to more absorptive ITMs.

Abstract: A marking agent concentration method includes concentrating the marking agent by removing at least some liquid carrier between particles without substantially removing retained liquid carrier within the particles and without substantially modifying the particle structure, which is supported by the retained liquid carrier. The concentrated marking agent is supplied to distributors or end users of liquid marking agent. A concentrated marking agent includes solid clumps of agglomerated particles and a liquid carrier retained within the particles' individual structure. The clumps exhibit a median size greater than 90 ?m. The concentrated marking agent exhibiting a solids content of from 40 wt % to less than 90 wt %. A hard imaging method includes combining a concentrated marking agent with additional liquid carrier, applying a shear force, dispersing particles from clumps, forming a liquid marking agent, and forming a hard image using the liquid marking agent.

Abstract: A system for adjusting air supply applied to evaporate carrier liquid during a one shot process printing job, comprises at least one air supply unit, at least one air knife unit configured for directing air toward at least a separation of the image, wherein each separation includes a single color of a plurality of colors used to form the full colored image, and controller configured for adjusting at least one air supply parameter between separations.