Abstract: Systems and methods for industrial printing, e.g., using drop-on-demand (DOD) inkjet print heads, include, in at least one aspect, a printing device including: a print head including a print engine, including multiple nozzles, and circuitry to selectively eject ink through the multiple nozzles to form an image on a moving substrate, and to purge the ink through the multiple nozzles; and a printhead enclosure having an opening in front of the multiple nozzles to allow the selectively ejected ink to pass through the opening when the selectively ejected ink is ejected toward the moving substrate; wherein the printhead enclosure includes a hole placed away from the multiple nozzles; and wherein the printhead enclosure is configured to direct the ink that is purged through the multiple nozzles along an inside surface of the printhead enclosure to the hole through which the ink flows and exits the printhead enclosure.

Abstract: Industrial printing systems, including systems and techniques relating to drop-on-demand (DOD) inkjet printing systems include an apparatus including: a receptacle defining a hold chamber to receive ink, the receptacle including a first portion configured to hold a first quantity of ink, and a second portion that is smaller than the first portion and configured to hold a second quantity of ink, the second portion including a first heat conducting surface, and a second heat conducting surface offset from the first heat conducting surface by a distance determined in accordance with a melting point of the ink, the second heat conducting surface defining a barrier between the first portion and the second portion and including at least one opening configured to allow flow of the ink from the first portion to the second portion; and at least one heating element configured to heat the receptacle.

Abstract: An ink composition for continuous deflected ink jet printing, liquid at ambient temperature is disclosed. One aspect is an ink composition comprising: a solvent including organic solvent compound(s), and optionally water, the solvent representing at least 20% by weight of the total weight of the ink. Furthermore, there is at least one compound imparting conductivity to the ink composition, chosen from among the ionic liquids, the compound representing 0.2% by weight to 4% by weight of the total weight of the ink composition, preferably 0.5 to 3% by weight of the total weight of the ink composition. Lastly, the ink composition includes less than 10% by weight, preferably less than 5% by weight, more preferably less than 1% by weight, and most preferably 0% by weight of water relative to the total weight of the ink composition.

Abstract: Systems and methods for industrial printing, e.g., using drop-on-demand (DOD) inkjet print heads, include, in at least one aspect, a printing device including: a print head configured to selectively eject liquid through nozzles to form an image on a moving substrate; and a printhead enclosure configured to contain a pressurized airspace at least in front of the nozzles; wherein the printhead enclosure includes a slot that aligns with the nozzles to allow the selectively ejected liquid to pass through the slot when the selectively ejected liquid is ejected toward the moving substrate; and wherein the printhead enclosure is configured to contain the pressurized airspace and cause airflow through the slot at a flow rate that prevents dust and debris from entering the slot while the selectively ejected liquid passes through the slot and the airflow without a direction of the selectively ejected liquid being impeded by the airflow.

Abstract: A method for enabling marking of a pattern on a substrate with an industrial printer includes executing a genetic algorithm based on the pattern to be marked on the substrate. A result of the genetic algorithm indicates a resulting path which the industrial printer should follow when marking the pattern on the substrate. It is determined if the resulting path fulfills at least one criterion of: the resulting path matches an optimal path for marking the pattern, the resulting path substantially matches the optimal path, or a time spent for executing the genetic algorithm has reached or exceeded a threshold.

Abstract: A method for enabling marking of a pattern on a substrate with an industrial printer includes executing a genetic algorithm based on the pattern to be marked on the substrate. A result of the genetic algorithm indicates a resulting path which the industrial printer should follow when marking the pattern on the substrate. It is determined if the resulting path fulfills at least one criterion of: the resulting path matches an optimal path for marking the pattern, the resulting path substantially matches the optimal path, or a time spent for executing the genetic algorithm has reached or exceeded a threshold.

Abstract: Systems and methods for laser printing product codes on products include, in at least one aspect, a system including: a laser marking device that directs a laser beam to dwell at different locations to form marks on the products; and a controller that obtains a code to be printed, groups discrete symbols in the code with each other into separate symbol groups based on locations of the discrete symbols in the code, organizes symbol(s) in each respective symbol group into one or more stripes in a direction perpendicular to a direction of motion of the products, adds extra distance or time delay between stripes in at least one of the separate symbol groups to prevent clipping of a symbol by the laser marking device by the laser marking device's print aperture, and causes the laser marking device to direct the laser beam in accordance with the separate symbol groups.

Abstract: An ink composition for printing by the continuous deflected ink jet technique, liquid at room temperature, including a method for marking or printing on a substrate, support or object using said ink composition, and a substrate, support, or object provided with a marking obtained by drying, and/or absorption of said ink composition, in which the ink composition includes a solvent including one or several organic solvent compounds, and optionally water; a binder comprising at least one binding resin; at least one plasticizer of said binding resin; at least one dye which belongs to the family of anthraquinone dyes; and optionally, at least one or several other dyes and/or pigments which do not belong to the family of anthraquinone dyes.

Abstract: A pumping circuit for fluid of an ink circuit in a continuous inkjet printer, including a diaphragm pump, an inlet circuit having an inlet conduit into the pump for the fluid to be pumped, an outlet conduit for the fluid pumped by the pump, the pumping circuit including a back-flow line which removes, from the outlet of the pump, part of the pumped fluid and returns it to the inlet circuit of fluid to be pumped, at least one singular restriction being arranged on the path of the fluid in the back-flow line, and the back-flow line regulating the pressure and the flow rate of the fluid at the outlet of the pump.

Abstract: A removable single-block assembly for an ink circuit of a continuous inkjet printer, including a plate having a plurality of fluid inlets and a plurality of fluid outlets, this assembly further including a first pump called a pressure pump, a second pump called a recovery pump, and a filter, fluid connection means to allow fluids to flow: between said fluid inlets, the first or second pumps, and said fluid outlets, and means for mounting and dismounting the assembly on the ink circuit.

Abstract: A method for providing a dynamic user interface template in an industrial printing environment. The method including automatically determining: a print-head type, a utilized printing technology module, and a peripheral module. The method obtains from said print head information on one or several of technology type and capabilities, setting definition, fault and warning definitions, maintenance features and diagnostic features. The method also obtains from said printing technology module information on one or several of module type and capabilities, setting definition, fault and warning definitions, maintenance features and diagnostic features. The method additionally obtains from said peripheral module information on one or several of module type and capabilities, setting definition, fault and warning definitions, maintenance features and diagnostic features.

Abstract: A method for managing the quality of an ink of an inkjet printer versus temperature resorting to the management of the viscosity of the ink versus temperature, the ink comprising a solvent or a mixture of solvents and the solvent or mixture of solvents representing at least 50% by mass of the total mass of the ink, wherein the viscosity of the ink at a temperature T is calculated from the following parameters: the viscosity of the ink at a single reference temperature Tref; the parameters K or Ln(K), and ?E/R of equation (1) giving the viscosity of the solvent or of the mixture of solvents: Ln (viscosity of the solvent)=Ln(K)?E/RT (1) wherein E is the Arrhenius activation energy given in J/mol and R is the ideal gas constant.

Abstract: A device for forming and ejecting drops of an ink jet of a CIJ printing machine, this device including: a cavity for containing an ink and including an end provided with a nozzle (10) for ejecting ink drops, actuator means (21, 22, 32, 41, 42), in contact with the cavity, in which device the jet velocity modulation, from the nozzle (10), has a value ?Vj(ft) at the operating frequency of the cavity and the actuator, and this jet velocity modulation, at the temperature of 15° C. and at the temperature of 35° C., does not vary, in a frequency range of ±5 kHz about the operating frequency ft, outside the range of between 0.25?Vj(ft) and 4?Vj(ft).

Abstract: Systems and apparatus relating to motor control (e.g., for thermal transfer printing) include, according to at least one implementation, a motor control system including: a position controller to receive a demanded position (PD) input for controlling a motor; a torque controller coupled with the position controller, the torque controller to receive a torque bias (TB) input for controlling the motor; and a feedback circuit coupled with the torque controller and the position controller; wherein the feedback circuit is configured and arranged to combine an output from the position controller, the output being generated based on the demanded position (PD) input, with the torque bias (TB) input to generate a torque demand (TD) input to the torque controller.

Abstract: Solvent-based inkjet ink formulations including an organic solvent, a resin, a surfactant, and a colorant are provided. The inks have many desirable attributes such as extended decap time.

Abstract: This disclosure relates to compounds of formula (I), as well as related ink compositions and printing methods: In formula (I), L, X, R1, and R2 are defined in the specification.

Abstract: Non-aqueous ink composition for liquid ink jet printing including: a vehicle comprising one or more organic solvent(s) liquid at ambient temperature, or one or more organic compound(s) solid at ambient temperature and liquid at the projection temperature; one or more dye(s) and/or pigment(s); a binder, comprising at least one binding resin consisting of a copolymer of vinylidene chloride and of at least one other monomer, in solution at ambient temperature in the organic solvent(s) or in solution at the projection temperature in the organic compound(s). A method for marking substrates, supports or objects includes projection onto the substrates, supports or objects of the ink composition by a liquid ink jet printing technique. A substrate, support or object, particularly flexible substrate, is provided with a marking obtained by drying and/or absorption of the composition.

Abstract: A pumping circuit for fluid of an ink circuit in a continuous inkjet printer, including a diaphragm pump, an inlet circuit having an inlet conduit into the pump for the fluid to be pumped, an outlet conduit for the fluid pumped by the pump, the pumping circuit including a back-flow line which removes, from the outlet of the pump, part of the pumped fluid and returns it to the inlet circuit of fluid to be pumped, at least one singular restriction being arranged on the path of the fluid in the back-flow line, and the back-flow line regulating the pressure and the flow rate of the fluid at the outlet of the pump.

Abstract: Example embodiments presented herein are directed towards the implementation of a FPGA where a printing core may be dynamically reconfigured with respect to a currently used printing type. Example embodiments are also directed towards print handling, direct memory access printing, and the use of an internal FPGA timer.

Abstract: This disclosure relates to an ink composition (e.g., a hot melt ink composition or a radiation curable ink composition) that has a relatively low conductivity. This disclosure also relates to a continuous printing process using such a composition and a product containing such a composition.