Abstract: A three-dimensional (3D) printer includes an ejector and a heating element configured to heat a solid printing material in the ejector, thereby causing the solid printing material to change to a liquid printing material within the ejector. The 3D printer also includes a coil wrapped at least partially around the ejector. The 3D printer also includes a power source configured to supply one or more pulses of power to the coil, which cause one or more drops of the liquid printing material to flow out of the ejector through a nozzle of the ejector. The 3D printer also includes a gas-controlling device configured to control a gas in the 3D printer.

Abstract: An ejector of liquid material to form spherical particles includes a crucible for retaining liquid material, an orifice area defining at least one orifice, and an actuator responsive to a voltage signal for causing material to be ejected from the crucible through the orifice. A method comprises applying a voltage signal of a first type and a second type to the actuator, causing a material droplet of a first size and a second size to be ejected through the orifice. Alternately or in addition, the orifice area defines a first orifice having a first diameter and a second orifice having a second diameter different from the first diameter, whereby a signal causes a material droplet of a first size to be ejected through the first orifice and a material droplet of a second size to be ejected through the second orifice.

Abstract: Methods for forming latexes are provided. In an embodiment, such a method comprises adding a monomer emulsion comprising water, a monomer, an acidic monomer, a hydrophilic monomer, a difunctional monomer, a first reactive surfactant, and a chain transfer agent, to a reactive surfactant solution comprising water, a second reactive surfactant, and an initiator, at a feed rate over a period of time so that monomers of the monomer emulsion undergo polymerization reactions to form resin particles in a latex. The reactive surfactant solution does not comprise monomers other than the second reactive surfactant, the reactive surfactant solution does not comprise a resin seed, and the monomer emulsion does not comprise the resin seed. The latex is characterized by a viscosity in a range of from about 10 cP to about 100 cP as measured at a solid content of about 30% and at room temperature. The latexes are also provided.

Abstract: A sheet processing system for automated sheet adjustment includes a sensor system which captures at least a first image of a sheet of print media as the sheet is conveyed on a main transport path between a print media supply module and a marking device of an image rendering module. A control module computes a lateral error for the sheet, based on the captured at least first image, and computes an adjustment based on the computed lateral error. A sheet transport path adjustment mechanism translates a first portion of the main transport path relative to a second portion of the main transport path, based on the computed adjustment.

Abstract: A wax layer may be applied to a print bed to promote adhesion and release of a printed part during additive manufacturing. Additive manufacturing methods may comprise: depositing a wax layer comprising one or more waxes upon a print bed of an additive manufacturing apparatus, and forming a printed part upon the print bed through layer-by-layer deposition of a printing material. The printed parts may be released from the print bed once printing is complete, but without damaging the print bed.

Abstract: A development system includes a housing configured for accommodating a developer material which includes toner particles. At least one magnetic roller is positioned within the housing to attract the developer material to a surface of the magnetic roller(s). A continuous developer belt is positioned to attract the toner particles from the at least one magnetic roller to a surface of the developer belt. The developer belt is carried on a plurality of developer rollers. One of the developer rollers is positioned adjacent to an image transfer member, such as a belt or drum, with a photoconductive surface. Some of the toner particles are transferred to a latent image formed on the image transfer member to generate a toner image layer, which is applied to a sheet of print medium.

Abstract: A method of analyzing decurling settings for a print request including a plurality of sheets, the method including receiving a real image of a first portion of the plurality of sheets, receiving a first input, displaying one or more decurler settings, and displaying a first augmented image of a stack of the plurality of sheets.

Abstract: A method of controlling drop mass in a liquid ejector is disclosed which includes advancing a printing material feed source to introduce a quantity of a printing material into a liquid ejector, counting a quantity of ticks produced by an encoder coupled to the printing material source during a time period to calculate a mass of the printing material, counting a quantity of pulses produced by the liquid ejector during the time period, and entering into a control system the quantity of ticks produced by the encoder and the quantity of pulses produced by the liquid ejector. The method may include comparing the quantity of printing material calculated by using the quantity of ticks produced by the encoder to the quantity of printing material measured by using a level sensing system. The method of controlling drop mass in a liquid ejector may include steps performed by a microprocessor.

Abstract: A method for producing polysulfone micro-particles for 3D printing disclosed. For example, the method includes creating a mixture of polysulfone by dissolving polysulfone in an organic solvent, creating an aqueous solution of a polymeric stabilizer or a surfactant, adding the mixture of polysulfone to the aqueous solution to create a polysulfone solution, and processing the polysulfone solution to obtain polysulfone micro-particles having a desired particle size, a desired particle size distribution, and a desired shape.

Abstract: A secure document printing and delivery management system includes one or more print delivery vehicles, each of which includes an onboard print device. When the system receives a print job from a requesting device, it will select a print delivery vehicle instruct the print delivery vehicle to navigate to a delivery location. Upon arrival at the delivery location, the system will detect and verify a security token presented by a recipient. In response to detecting and verifying the token, the system may print the document (if not already printed) and it will present the document to the recipient.

Abstract: A method for direct transfer printing is disclosed. The method for direct transfer printing includes applying a fountain solution to an imaging blanket in a negative imagewise manner using an inkjet printhead, contacting the imaging blanket with a printing substrate, transferring the fountain solution from the imaging blanket to the printing substrate, contacting the printing substrate with an inking station, and depositing an ink film from the inking station to the printing substrate in one or more locations on the printing substrate where there is no fountain solution. A module for a direct transfer marking process and a direct transfer printing system are also disclosed.

Abstract: Powder particulates comprising a water-soluble polymer may be formed by melt emulsification. Compositions comprising powder particulates may comprise a plurality of particulates comprising a water-soluble polymer and a plurality of nanoparticles, the water-soluble polymer defining at least an outer surface of the particulates and at least a majority of the plurality of nanoparticles being disposed upon the outer surface.

Abstract: A method for metal jetting is disclosed. The method for metal jetting includes introducing a first gas into an outer nozzle of an ejector nozzle from a first gas source introducing an additive to the first gas from a second source, combining the additive with the first gas. The method for metal jetting also includes ejecting a droplet of molten metal printing material from the ejector nozzle. The method for metal jetting includes allowing the additive to react with the droplet of molten metal printing material to form a modified molten metal printing material.

Abstract: A processor identifies print defect locations where printing defects occur and a assigns different sensitivity values to different zones of a job image being prepared for printing by a printing engine. The processor changes the orientation of the job image to a revised orientation, relative to print media, to avoid locating one or more high-sensitivity zones of the job image in the print defect locations. The high-sensitivity zones are ones of the zones having a sensitivity value above a threshold sensitivity value. The printing engine prints the job image on the print media at the revised orientation.

Abstract: An ejector for jetting modified metal is disclosed. The ejector for jetting modified metal also includes a nozzle orifice in connection with the inner cavity and configured to eject one or more droplets of liquid metal. The ejector for jetting modified metal includes a first gas source associated with the inner cavity and an external portion of the nozzle. The ejector for jetting modified metal also includes a second gas source coupled to the first gas source and in proximity to an external portion of the nozzle orifice.

Abstract: A system for collecting building environmental sensor data includes a first data collection device having a first transceiver that is configured to receive data from proximate building environmental sensors and a second transceiver that is configured to communicate with an external service. The device will, upon detecting that the first transceiver is within a receiving range of a first building environmental sensor, communicatively connect with the first building environmental sensor to receive a data stream that comprises sensor data captured by the first building environmental sensor. The device will continue to receive the data stream until the first transceiver either receives all of the sensor data or moves out of the receiving range. The device will repeat this process for additional building environmental sensors. The device will use its second transceiver to transfer the sensor data to the external service.

Abstract: A system for performing multifunction device session management includes a multifunction device and a computer-readable storage medium that includes one or more programming instructions. The one or more programming instructions cause the multifunction device to detect by one or more sensors of the multifunction device an indication that a session is to be initiated, in response to detecting the indication that the session is to be initiated, initiate the session, retrieve a device policy associated with the multifunction device from a data store associated with the multifunction device, identify a condition from the device policy, monitor for the occurrence of one or more triggers during the session, wherein each trigger is associated with the identified condition in the device policy, and in response to detecting that one or more of the triggers have occurred at the multifunction device, perform one or more actions pertaining to completion of the session.

Abstract: A particle and a method for producing the same is disclosed. For example, the particle includes a polymer resin that is compatible with a three-dimensional (3D) printing process to print a three-dimensional (3D) object and a marking additive that allows selective portions of the 3D object to change color when exposed to a light, wherein the marking additive is added to approximately 0.01 to 25.00 weight percent (wt %).

Abstract: A tandem system of metering and donor rolls is used to apply two different adhesives to a fully adhesive backed multilayer sheet to produce variably distributed adhesives and properties. Each of the two adhesives is unique and is cured differently to create a layer of adhesive that has differing adhesive properties on the sheet. A clear adhesive is applied to a top portion of cards before they are cut from the sheet and has a higher tackiness than the adhesive applied to the rest of the cards on the sheet in order to reduce glue buildup on blades cutting the cards from the sheet.

Abstract: A system for collating and stacking long cut retail edge marker strips exiting a roll fed high speed slitter/perforator/cutter apparatus includes a media collation apparatus that facilitates automated collation of the long retail edge marker strips by collecting them off a surface and through the use of a device of graduated stair configuration separately lifting the retail edge markers from the surface for downstream accumulation. Individual bundles of slit retail edge marker strips are moved in a cross-process direction on integrated shelves of the media collection apparatus by a connected pusher. This allows the bundles to be transferred through the cross-process move in separate bundles before being collated at the end of the move when the pusher retracts to drop the bundles onto a receiving platform.