Abstract: A device is provided for making an implant having a hollow region, the device comprising a print surface rotatable in a clockwise and counterclockwise direction about an axis of rotation; a print head disposed adjacent to and substantially transverse to the print surface, the print head configured to apply material used to make the implant on at least a portion of the print surface or heat material disposed on at least a portion of the print surface used to make the implant; and a base disposed adjacent to the print head and contacting the print surface, the base configured to be movable in forward, backward and lateral directions relative to the print head to make the implant having the hollow region. Methods of using the device and are also disclosed.

Abstract: A dryer unit (26), especially an intracolor dryer unit, for a printing machine is presented. It comprises a web inlet edge (34) and a web outlet edge (36) being substantially parallel to one another and defining a drying area (28) therebetween. Additionally, an air inlet and a first air outlet (38) being connected to the air inlet in an air-ducting manner are provided. The first air outlet (38) is positioned adjacent to one of the web inlet edge (34) and the web outlet edge (36) and a middle axis of the first air outlet (38) is inclined towards the respective other of the web inlet edge (34) and the web outlet edge (36) with respect to the drying area (28). Furthermore, a printing machine is described, comprising an impression drum, at least two ink application units and at least one dryer unit (26) as described above.

Abstract: An optimal printing speed and orientation for an object to be manufactured using an additive manufacturing process in which a photo-curable resin is cured through exposure to radiation are estimated by determining, for pixel maps defining cross-sections of the object, a critical size of a convolution kernel which provides an activation map having a maximum activation pixel value less than or equal to a predetermined threshold value. For each respective pixel map, a printing time is estimated as a function of an adjusted base lift velocity and base lift height of the printing apparatus. The optimal printing speed and orientation are then estimated as a minimum value of a function of the printing times for all respective pixel maps of the cross-sections of the object at each of a plurality of possible orientations of the object.

Abstract: A device is provided for making an implant having a hollow region, the device comprising a print surface rotatable in a clockwise and counterclockwise direction about an axis of rotation; a print head disposed adjacent to and substantially transverse to the print surface, the print head configured to apply material used to make the implant on at least a portion of the print surface or heat material disposed on at least a portion of the print surface used to make the implant; and a base disposed adjacent to the print head and contacting the print surface, the base configured to be movable in forward, backward and lateral directions relative to the print head to make the implant having the hollow region. Methods of using the device and are also disclosed.

Abstract: The invention discloses a decoration apparatus for decorating a web of labeling material. The decoration apparatus comprises conveyor for advancing the web of labeling material between a first station and a second station, an activation unit adapted to apply an activation energy at a activation station for selectively activating activatable pigments comprised in the web of labeling material or to locally ablate the web of labeling material and a temperature-conditioning unit which is adapted to actively cool and/or heat the web of labeling material, in particular, in use, prior, during and/or after selectively activating the activatable pigments or ablating the web of labeling material.

Abstract: Provided herein is a method of making an object having a matte surface finish by stereolithography. The method may include: (a) stereolithographically producing an intermediate object by polymerization of a dual cure resin with a first light having a first peak wavelength, the object having excess unpolymerized resin retained on the surface thereof; (b) separating a portion of said excess unpolymerized resin from said object while leaving a thin film of unpolymerized resin on the surface thereof; (c) partially curing said thin film by exposing said thin film to a second light at a second peak wavelength; and then (d) further curing said intermediate object by heating, microwave irradiating, or both heating and microwave irradiating, to produce an object having a matte surface finish.

Abstract: A drying device for drying a recording medium includes a medium guide part that guides the recording medium; a heating body that heats the medium guide part; a cover that is arranged opposing the medium guide part such that the medium carrying path intervenes between the cover and the medium guide part and an air flow path is formed with the medium guide part and the cover; a fan that generates an air flow; and (e) a duct that is configured to discharge the air in the air flow path together with a vapor generated as the recording medium is heated, wherein an air intake port that takes the air in the air flow path into the duct is formed on the downstream side of the flow direction with resect to the heating body.

Abstract: To reduce an influence of a flow of ambient atmosphere and the like on flying of a droplet ejected from a nozzle of an inkjet head. To exhaust vapor of a solvent contained in a coated film while reducing an influence on flying of the droplet. An exhaust device for inkjet coating includes: a cover that covers at least a target range on an object to be coated, the target range being a range in which a droplet lands that is ejected from an ejection nozzle of an inkjet head to a surface of the object to be coated; a closing member that closes a gap between the cover and the object to be coated around the target range; an external communication portion through which a compartment surrounded by the cover, the object to be coated, and the closing member communicates with an outside; and an exhaust mechanism configured to exhaust air from the compartment.

Abstract: In a method and device for drying a printed recording medium, a printed recording medium is introduced into a heated first chamber in which a temperature suitable for drying the recording medium and a first pressure are set. The printed recording medium is also introduced into a second chamber in which a second temperature that is suitable for cooling the recording medium for a further processing and a second pressure are set. The first pressure can be provided to be lower than the second pressure.

Abstract: A dryer includes a heater in a conveyance area in which an object is conveyed, the heater configured to heat the object on which a liquid is applied, a heated portion in an outer area outside the conveyance area, the heated portion connected to the heater, a partition wall partitioning the conveyance area and the outer area, an air supply unit in the conveyance area, the air supply unit configured to feed air to the object conveyed in the conveyance area, and a duct in the outer area, the duct connected to the air supply unit and configured to take in air around the heated portion.

Abstract: A molding method of a resin molded product in which it is possible to increase the welding strength between the core member and the resin sheets. In a molding method of a resin molded product in which a core member including a foaming element is interposed between at least two resin sheets in a melted state into a laminated product, wherein the resin sheets include fibrous filler, and while melting surfaces of the core member by heat of the resin sheets, the core member and the resin sheets are welded onto each other, and the core member and the resin sheets are clamped by a metallic mold, to mold the resin molded product.

Abstract: The present disclosure describes a device used to determine the optimal post-curing exposure time for 3D printed products and methods of using the same. The disclosed device is a self-contained multi-chamber radiometer for continuous monitoring of electromagnetic radiation transmitted through 3D printed objects during a post-curing process. The device includes multiple detector ports, including a control port and one or more sample ports. The detector ports may preferably be photocells configured to generate a voltage proportional to the intensity of the incident electromagnetic radiation at specific wavelength(s). The transmittance is directly correlated with the voltage and may be measured using the determined voltages. The disclosed device may further comprise a microprocessor, a memory module for storage of data obtained by the sensors, and one or more communication modules configured to enable wireless communication with a data storage device such as a computer.

Abstract: In one example, an inkjet web printer includes: an arched printing unit and an aerosol control system. The printing unit has a series of printheads arranged along an arc and multiple rollers to support a print substrate web along the arc through a print zone adjacent to each printhead. The aerosol control system has a vacuum duct through which air may be sucked away from the web leaving a print zone adjacent to one of the printheads and a pressure duct through which air may be blown on to the web leaving the print zone. The pressure duct is positioned downstream from the vacuum duct and configured to blow air diagonally upstream directly on to the web at the same location the vacuum duct is to suck air away from the web.

Abstract: A method of minimising distortion in a workpiece is described that includes utilizing a computer system to carry out finite element analysis on a finite element thermo-mechanical model of the workpiece during and after fabrication by additive manufacturing to predict shape distortion and residual stress development in the workpiece, wherein the fabrication includes the fabrication step of depositing multiple layers of a material melted by a heat source along a deposit path on a substrate, and introducing alterations to the workpiece prior to or during fabrication to compensate for the predicted distortion.

Abstract: Embodiments of the present invention relate to control apparatus and methods of a printing system, for example, comprising an intermediate transfer member (ITM) and to user-related features of a printing system. Some embodiments relate to regulation of a velocity and/or tension and/or length of the ITM. Some embodiments relate to regulation of deposition of ink on the moving ITM. Some embodiments regulate to apparatus configured to alert a user of one or more events related to operation of the ITM. Some embodiments relate to a time-line GUI for visualizing and/or manipulating queued print jobs which may be employed. Some embodiments relate to a reversed augmented reality GUI for visualization and/or control of the printing system. In some embodiments, a display screen is mounted to a printer housing and/or able to control access to moving parts of a printing system.

Abstract: An aqueous ink printer includes two drying stages that enable coated substrates to be printed with aqueous ink images. The first drying stage dries substrates uniformly in the cross-process direction and the second drying stage dries substrates non-uniformly in the cross-process direction to enable only predetermined portions of the printed substrates to be dried. The predetermined portions of the printed substrates are aligned in a process direction with nip rollers or other printer components that engage the substrates after the substrates exit the second drying stage.

Abstract: In one example, a non-transitory processor readable medium with instructions thereon that when executed cause an additive manufacturing machine to: form a first layer of build material; form a second layer of build material over the first layer; solidify build material in the second layer to form a slice; and form a barrier that is separable from the slice to prevent a coalescing agent in the second layer penetrating build material in the first layer.

Abstract: A method is provided for configuring a drying device in a printing machine, in particular in a value document printing machine. The printing machine has at least one printing unit which comprises an imaging cylinder having a plurality of imaging printing elements or groups of imaging printing elements which are arranged in rows and columns on its circumference. A drying device has a dryer, by which print material, passing through the dryer, is subject to radiation. The drying device is configured for ongoing or upcoming production in such a way that the print material passing through the dryer, in order to be dried, is subjected to radiation in a plurality of tracks spaced from each other by non-irradiated tracks according to the same switch-on and switch-off sequence extending over cycle length.

Abstract: A device is provided for making an implant having a hollow region, the device comprising a print surface rotatable in a clockwise and counterclockwise direction about an axis of rotation; a print head disposed adjacent to and substantially transverse to the print surface, the print head configured to apply material used to make the implant on at least a portion of the print surface or heat material disposed on at least a portion of the print surface used to make the implant; and a base disposed adjacent to the print head and contacting the print surface, the base configured to be movable in forward, backward and lateral directions relative to the print head to make the implant having the hollow region. Methods of using the device and are also disclosed.

Abstract: A drying device includes a plurality of blowers to blow air onto an object to be dried, the plurality of blowers being disposed along a direction of conveyance of the object to be dried, and a plurality of heaters to heat air inside the plurality of blowers. Each of the plurality of blowers includes an elongated nozzle arranged along a nozzle direction perpendicular to the direction of conveyance of the object to be dried, and an airflow generator to generate airflow to be blown from the elongated nozzle. The plurality of blowers includes a first blower including the airflow generator at a first end of the first blower in the nozzle direction and a second blower including the airflow generator at a second end of the second blower opposite the first end in the nozzle direction.

Abstract: Apparatus for use in continuous inkjet printing, comprising: a cabinet, an ink system located in the cabinet, the ink system comprising, an ink pump, an ink system air inlet, and an ink system air outlet, and an air circulation device arranged to cause air to flow within the cabinet. The air circulation device is arranged to cause air to flow along a predetermined air flow path through the ink system air inlet, past the ink pump, and through the ink system air outlet.

Abstract: A system, method, and computer program product for optimizing the cooling of a UV bulb during a UV irradiation process is described. A power level in which to operate the UV bulb is received. In addition, a particular type of UV bulb being used in the UV irradiation process is received. Thereafter, at least one optimal UV cooling parameter that corresponds to the power level and the type of UV bulb is retrieved from a UV source parameters database. At least one control signal is then sent to a cooling device that is based on the retrieved optimal UV cooling parameter, and the control signal instructs the cooling device to cool the particular type of UV bulb according to the retrieved optimal UV cooling parameter during the UV irradiation process.

Abstract: Curing apparatus, image forming apparatus and articles of manufacture are disclosed. An example curing apparatus includes a curing unit to heat an area adjacent a substrate travel path, the curing unit having a width less than a width of the substrate travel path, and a controller to reciprocate the curing unit within the substrate width.

Abstract: An ultraviolet curing device is proposed, which includes a light source assembly, and a first reflection plate and a second reflection plate connected to the light source assembly and disposed at two sides of the light source assembly, respectively. Both of the first reflection plate and the second reflection plate are scalable along lengthwise directions to make the distance between the light source assembly and the to-be-cured display panel adjustable and make all the ultraviolet rays from the light source assembly be able to be used to cure the to-be-cured display panel.

Abstract: Provided is a light irradiation apparatus. The light irradiation apparatus which irradiates light of a line shape extending in a first direction and having a predetermined line width in a second direction perpendicular to the first direction, includes a substrate, a plurality of light sources placed on a surface of the substrate side by side at a predetermined interval along the first direction, with a direction of an optic axis being a third direction perpendicular to the first and second directions, a plurality of heat radiation fins standing erect on an opposite surface of the substrate and arranged in rows in the first direction, and N cooling mechanisms placed side by side along the first direction to cover a plurality of heat radiation fins, in which N is an integer greater than or equal to 2. Each of the cooling mechanisms includes a case and a cooling fan.

Abstract: An image-forming device includes a printing portion that forms images on the media being transported using ink, a varnish application portion that applies aqueous varnish to the media on which the images are formed, a treatment portion that performs a treatment on the media so that a stickiness evaluation value which is a stickiness evaluation value indicating a degree of stickiness of the aqueous varnish applied to the media when the media to which the aqueous varnish is applied are output from the varnish application portion and is derived using a damped vibration percentage of a pendulum caused to do pendulum motions from an arbitrary location of the media to which the aqueous varnish is applied as a pivot reaches 0.24 or less, and an accumulation portion that accumulates the media to which the aqueous varnish is applied and on which the treatment is performed.

Abstract: Systems and methods for adjustable path length of print media in a dryer of a printing system. In one embodiment, the dryer includes a drum that applies heat to a web of print media. The dryer also includes first rollers positioned in an arc around the drum to define a path of travel of the web along the arc when the web is between an entrance of the dryer and the drum. The dryer further includes second rollers positioned inside the arc from the first rollers to reverse the path of travel of the web inside the arc when the web is between the drum and an exit of the dryer. A first roller and a second roller transport the web around the drum. A location of the first roller and the second roller relative to the arc defines a length of the web inside the dryer.

Abstract: Techniques are disclosed for selectively pausing and resuming the 3D printing of an object. In embodiments, a request to pause 3D printing is received. A 3D printer may evaluate a material being used to print the object, a process being used to print the object, a current point in the process of 3D printing the object, and other factors, and determine whether to permit pausing the 3D printing process based on this information.

Abstract: There is described a printing press (100) comprising a printing group (2) adapted to apply on a substrate at least one ink or varnish vehicle containing magnetic or magnetisable flakes and at least one magnetic orientation unit (10) located downstream of the printing group (2) along a path of the substrate, which magnetic orientation unit (10) includes at least one magnetic-field-inducing device (12) adapted to orient the magnetic or magnetisable flakes contained in the ink or varnish vehicle applied on the substrate to induce an optically-variable effect in the ink or varnish vehicle. The printing press (100) further comprises a drying/curing unit (15) located along the path of the substrate and cooperating with the magnetic orientation unit (10), which drying/curing unit (15) is adapted to dry or cure the ink or varnish vehicle applied on the substrate following orientation of the magnetic or magnetisable flakes.

Abstract: Systems and methods for adjustable path length of print media in a dryer of a printing system. In one embodiment, the dryer includes a drum that applies heat to a web of print media. The dryer also includes first rollers positioned in an arc around the drum to define a path of travel of the web along the arc when the web is between an entrance of the dryer and the drum. The dryer further includes second rollers positioned inside the arc from the first rollers to reverse the path of travel of the web inside the arc when the web is between the drum and an exit of the dryer. A first roller and a second roller transport the web around the drum. A location of the first roller and the second roller relative to the arc defines a length of the web inside the dryer.

Abstract: A printer includes an ink head, a first heater, a second heater, and a controller. The ink head includes first and second ink heads arrayed along a main scanning direction. The first heater is upstream of the platen in a sub-scanning direction, and heats the recording medium. The second heater is below the platen, and heats the recording medium placed on the platen. The controller includes a heater controller that controls the first and second heaters so that the surface temperature of a first region in which a first ink ejected from a first upstream nozzle array lands becomes higher than the surface temperature of a second region in which a second ink ejected from the second downstream nozzle array lands.

Abstract: A method of minimizing distortion in a workpiece is described that includes utilizing a computer system to carry out finite element analysis on a finite element thermo-mechanical model of the workpiece during and after fabrication by additive manufacturing to predict shape distortion and residual stress development in the workpiece, wherein the fabrication includes the fabrication step of depositing multiple layers of a material melted by a heat source along a deposit path on a substrate, and introducing alterations to the workpiece prior to or during fabrication to compensate for the predicted distortion.

Abstract: A build platform and methods of fabricating an article with such a platform in an extrusion-type additive manufacturing machine are provided. A platform body 202 includes features 204 that extend outward from the body 202. The features 204 define protrusive areas 206 and recessive areas 208 that cooperate to mechanically engage the extruded material that forms the initial layers 220 of an article when the article is being fabricated by a nozzle 12 of the additive manufacturing machine 10.

Abstract: A stretching apparatus of fibre tows in a pressurized steam environment includes an elongated stretching chamber having a generally rectangular section of a low height, within which the tows are treated with saturated or overheated steam at high temperature and pressure and simultaneously undergo a mechanical stretching operation. The stretching chamber has a width sufficient to house multiple tows mutually flanked in a running plane and is formed within a stretching chest made of aluminum. The stretching chest is housed in a supporting structure, having a higher structural rigidity than the stretching chest, which includes a plurality of contact elements apt to determine a predefined position of the stretching chest with respect to a direction perpendicular to the tow running plane and to allow a limited mobility of the stretching chest in the other two mutually perpendicular directions which lie in the plane, length and width respectively.

Abstract: A liquid ejecting apparatus which includes a carriage which can move in a reciprocating direction, in which the carriage is provided with an ejecting unit which ejects liquid, a circuit board which inputs a signal to the ejecting unit, and a fan which can blow air toward the circuit board, and includes a separator which separates a path through which mist which occurs along with ejecting of liquid from the ejecting unit reaches the fan.

Abstract: A liquid ejecting apparatus which includes an ejecting unit which ejects liquid, and a collecting unit which collects mist which occurs along with ejecting of the liquid from the ejecting unit from a collecting port, in which the collecting unit includes a backflow prevention unit in the collecting port. By adopting such a liquid ejecting apparatus, it is possible to suppress backflow of mist of the liquid from the collecting unit which collects mist of the liquid which occurs along with ejecting of liquid from the ejecting unit.

Abstract: A radio frequency (RF) laundry dryer includes, amongst other things, an RF generator, a drying surface and a Faraday cage enclosing the drying surface. The drying surface on which textiles are supported further includes an RF applicator having an anode and cathode coupled to the RF generator. At least a portion of the cathode substantially encompasses the anode to electrically shield the anode from the Faraday cage ensuring the formation of an e-field between the anode and cathode instead of the anode and the Faraday cage upon energizing the RF generator.

Abstract: Methods, systems, and apparatus include computer programs encoded on a computer-readable storage medium, including a system for reducing adhesion during cure processing for a stereolithographic 3D printed object. The system includes resin tank for maintaining a liquid photopolymer resin. The system further includes a light source. The system further includes controller for selectively exposing the liquid photopolymer resin to form a solid object in the resin tank. The resin tank is constructed of a rigid material that has an oxygen permeability that is above a first threshold so as to reduce a separation force required to remove the solid object from the resin tank after curing.

Abstract: Printed articles having unique data thereon, and flexible substrate printing systems and methods that allow for customization of flexible, absorbent substrates. Customization is accomplished by printing variable data on substrate stock in a single run or production pass such that at least some of the articles in a set of articles contains printed matter different from printed matter on other articles in the same set. The substrate stock can include napkin material, toilet tissue material, paper towel material, or any other similar substrate. One or more print engines are configured to receive substrate stock from the conveyor and print variable matter on the substrate stock. The methods and systems allow for economical and efficient production of small or large customer orders without the need to produce individual printing dies or plates.

Abstract: A simple configuration avoids exposure of a star wheel that prevents the media from lifting up when the media conveyance path opens. A platen top unit 20 that supports first and second star wheels 25A, 25B is separated from an opening and closing platen unit 8, and is supported movably vertically. when the platen unit 8 is moved to the open position 8B to open the third conveyance path section 10c of the conveyance path 10 when a paper jam occurs, for example, the head elevator 17 is controlled to raise the platen top unit 20 and retract the first and second star wheels 25A, 25B supported by the platen top unit 20 to a position removed from easy contact with the user's hands.

Abstract: A liquid droplet ejecting apparatus includes a transport unit configured to transport a medium in a transport direction, a support configured to support the medium transported by the transport unit, a liquid droplet ejecting portion configured to eject liquid droplets to the medium supported by the support, a carriage configured to reciprocate in a scanning direction intersecting the transport direction while holding the liquid droplet ejecting portion, and an air flow generator configured to create an air flow in an area over the support. The air flow generator limits creation of the air flow when the liquid droplet ejecting portion faces the medium in an ejection direction and allows the creation of the air flow when the liquid droplet ejecting portion does not face the medium in the ejection direction, due to movement of the carriage in the scanning direction.

Abstract: A recording apparatus includes a setting unit which sets a recording medium; a transport unit which transports the recording medium; a detection unit which is provided in a transport path of the recording medium and detects the recording medium; and a control unit which controls the transport unit. The transport unit includes a drive roller which is provided to be capable of contacting a first surface of the recording medium and applies a sending force to the first surface, and a blowing unit which is provided in a position opposing the drive roller and is capable of blowing onto a second surface of the recording medium. When the detection unit detects the recording medium, the control unit controls the transport unit so as to cause air to be blown from the blowing unit.

Abstract: A liquid ejecting apparatus includes a first heating unit which heats liquid ejected onto a medium for recording; a first collecting unit which is provided at a position facing a first face of the medium for recording at a portion at which a heating process is performed with respect to the liquid using the first heating unit; and a second collecting unit which is provided at a position facing a second face of the medium for recording at a portion at which the heating process is performed, in which the first collecting unit and the second collecting unit include a vapor collecting unit which collects vapor which is generated in the heating process from a vapor intake port, and a vapor liquefying unit which liquefies the collected vapor.

Abstract: Known operating processes for an irradiation device for irradiating a substrate by a UV emitter include the process steps of: (a) operating the UV emitter at a nominal operating radiation power; (b) continuously feeding the substrate at a feed rate into the irradiation field; and (c) irradiating the substrate in the irradiation field defined by the UV emitter. In order to devise, on this basis, a simple and inexpensive operating process for an irradiation device, which makes a short start-up time feasible after an interruption of the production process, the UV emitter is switched off when there is an interruption of the continuous substrate feed. The emitter temperature of the switched-off UV emitter is measured, and provisions are made for counter-measures to counteract a decrease of the emitter temperature by more than 10° C. below the nominal operating temperature.

Abstract: An image is printed by ink on a first face of a sheet of which the first face has low absorbency and the second face has a water-absorbing property greater than the first face. The first face of the sheet that has been printed upon is heated and the second face is moisturized.

Abstract: Each unit of an inkjet printing station includes chains arranged along a transportation path of a web paper. A holding mechanism is fixedly arranged on the chain. The holding mechanism holds both ends of a paper passing bar to which the web paper is attached. Driving the chain with a handle causes the holding mechanism to move. The paper passing bar is delivered between the units adjoining each other. Therefore, the paper passing bar is movable from one end to the other end of the inkjet printing station formed by the units. Moreover, when specifications are changed for changing combination of the units, the combination can be made optionally.

Abstract: An ink curing apparatus (11) comprising a UV light source (13); at least one moveable shutter means (17, 17a), which is moveable about the longitudinal axis of the UV light source (13); and at least one reflector (15); wherein at least one air passage (19a) is defined along substantially the entire surface area of the or each reflector (15).

Abstract: Systems and methods are provided for controlling a dryer of a printing system. The system comprises a controller and a sensor. The controller is operable to determine a speed of a web of print media traveling through a dryer, and to apply power to a heating element of the dryer based on a power profile that models a non-linear relationship between power applied to the heating element and speed of the web. The controller is further able to determine a type of media for the web, and to select the power profile based on the type of media.

Abstract: Systems and methods are provided for dispersing a liquid coolant in a radiant dryer. The system comprises a dryer of a printing system. The dryer includes a heating element within an interior of the dryer that is able to heat a web of printed media as the web travels through the interior. The dryer also includes a liquid dispersal unit within the interior that is able to project liquid droplets of coolant onto the web as the web travels through the interior, in order to control the temperature of the web.

Abstract: Systems and methods are provided for reducing the temperature of print heads of a printer in a multi-printer environment. The system comprises a receiving printer operable to receive a web of print media heated by an upstream dryer. The system further comprises an airflow generator located immediately before the heated web enters the receiving printer, the airflow generator operable to project impinging air that deflects warm air proximate to the heated web.