Abstract: A firing circuit for a thermal inkjet-printing nozzle includes a heater resistor and a switch. The heater resistor heats ink to cause the ink to be ejected from the nozzle. The heater resistor has a first end and a second end, the second end connected to a ground. The switch controls activation of the heater resistor. The switch has a first end connected to a voltage source and a second end connected to the first end of the heater resistor. The switch operates in a constant current mode, such that an at least substantially constant current flows through the heater resistor upon activation.

Abstract: An inkjet head drive apparatus comprises a pressure chamber, an actuator, a nozzle and a drive signal output section. The pressure chamber accommodates an ink. The actuator increases or decreases volume of the pressure chamber through an applied a voltage. The nozzle is connected with the pressure chamber to eject the ink through the change in the volume of the pressure chamber. When an ejection pulse for the ejection of the ink from the nozzle is repeated for equal to or greater than three times, the drive signal output section outputs a drive signal having a driving waveform including an initial ejection pulse having a first voltage amplitude and the a second ejection pulses and the pulses thereafter having a second voltage amplitude smaller than the first voltage amplitude to the actuator.

Abstract: A liquid droplet ejecting method which includes forming an image which is configured by a raster which is completed using liquid droplet ejecting operations of n times by alternately repeating a transport operation, and a liquid droplet ejecting operation in which liquid droplets are ejected on the medium while moving a first head which includes a plurality of nozzles, and a second head which aligns on the upstream side of the first head, in a scanning direction which intersects the transport direction in a scanning manner, in which, in a liquid droplet ejecting operation after a liquid droplet ejecting operation in which a first nozzle column and a second nozzle column are used in one liquid droplet ejecting operation, the number of times m (blank time) in which a liquid droplet ejecting operation of not using the second nozzle column is continuously executed is less than 0.5n.

Abstract: Disclosed is a method and an apparatus for controlling light emission of an ink cartridge. The method includes: an ink cartridge control unit (304), configured to receive a light emitting control instruction from an imaging device main body and identifying the instruction; the ink cartridge control unit (304), configured to control light emission of a light emitting unit (303) of the ink cartridge (10) according to the identified light emitting control instruction and preset control information corresponding to the light emitting control instruction so that the light emitting unit (303) does not emit light at an adjacent position light detection stage but emits light at an facing position light detection stage.

Abstract: According to an embodiment, a decoloring device is disclosed. A decoloring unit decolors an image formed with decolorable colorant on a sheet. A reading unit reads a surface of the sheet to determine whether the surface of the sheet is reusable. When the surface of the sheet read by the reading unit is determined to be not reusable, a marking unit adds a mark to the read surface. A first tray receives the sheet on which a mark is added by the marking unit.

Abstract: A radiation-curable ink composition for application to glass, ceramic, or metal by an inkjet printer. The ink composition can be applied to a glass, ceramic, or metal substrate to decorate, protect, etc. the substrate. In some embodiments, the ink composition includes a glass frits component, a chromophore component, and a UV-curable component. The glass frits component facilitates the fusing of the ink component with a glass, ceramic, or metal substrate to which the ink composition is applied. The chromophore component is the primary colorant of the ink composition. The UV-curable component facilitates activation of polymerization upon exposure to ultra-violet (UV) radiation, which causes the ink composition to cure and fix/pin to the underlying substrate. After the ink composition is applied to a substrate and cured by exposure to UV radiation, the substrate is heated to a temperature that causes the ink composition to fuse with the substrate.

Abstract: An image processing apparatus of the present embodiment generates image data representing an image which reproduces anisotropy. The image processing apparatus of the present embodiment has a receiving unit configured to receive an input of image data having anisotropy information and a generating unit configured to generate a signal corresponding to a printing material based on the anisotropy information. The generating unit generates an ejection signal so that a first area and a second area have different smoothnesses, the first area being formed by the printing material adjacently ejected in a first direction, the second area being formed by the printing material adjacently ejected in a second direction, the second direction being different from the first direction.

Abstract: In a configuration in which an ink accommodating portion is provided on the outside of an apparatus main body, an appropriate control for suppressing influence of noise can be performed.

Abstract: A discharge portion includes a discharge face on a first direction side. A support portion supports the discharge portion on a second direction side. A wiper can move from a third direction side to a fourth direction side of the discharge face. The third direction and the fourth direction orthogonally intersect the first direction and the second direction. A first cover portion covers an edge on the third direction side of the support portion and includes a first flat face part which is provided parallel to the discharge face and located to the first direction side of the discharge face. A second cover portion covers an edge on the fourth direction side of the support portion. The second cover portion includes a second flat face part. The second flat face part is provided parallel to the discharge face and to the second direction side of the discharge face.

Abstract: In an inkjet recording head comprising a substrate including an energy-generating element that generates energy for ejecting a liquid, an ejection port for ejecting the liquid, and a liquid flow passage communicating with the ejection port, a liquid-repellent layer is formed on a surface of a member for forming the ejection port, and a liquid-repellent region and a liquid-nonrepellent region are formed on the same surface of the liquid-repellent layer by irradiating a part of the liquid-repellent layer with light including a wavelength decomposing the liquid-repellent component in the liquid-repellent layer.

Abstract: A printing process is disclosed which comprises directing droplets of an ink onto an intermediate transfer member to form an ink image, the ink including an organic polymeric resin and a coloring agent in an aqueous carrier, and the transfer member having a hydrophobic outer surface so that each ink droplet in the ink image spreads on impinging upon the intermediate transfer member to form an ink film. The ink is dried while the ink image is being transported by the intermediate transfer member by evaporating the aqueous carrier from the ink image to leave a residue film of resin and coloring agent. The residue film is then transferred to a substrate.

Abstract: In an embodiment, a fluid ejection device includes an ink slot formed in a printhead die. The fluid ejection device also includes a printhead-integrated ink level sensor (PILS) to sense an ink level of a chamber in fluid communication with the slot, and a clearing resistor circuit disposed within the chamber to clear the chamber of ink.

Abstract: A firing circuit for a thermal inkjet-printing nozzle includes a heater resistor and a switch. The heater resistor heats ink to cause the ink to be ejected from the nozzle. The heater resistor has a first end and a second end, the second end connected to a ground. The switch controls activation of the heater resistor. The switch has a first end connected to a voltage source and a second end connected to the first end of the heater resistor. The switch operates in a constant current mode, such that an at least substantially constant current flows through the heater resistor upon activation.

Abstract: A printing apparatus including a discharge head that performs scanning movement with respect to a print medium and discharges ink to a surface of the print medium, a signal output unit which includes a reference scale in which optical density changes stepwise along a scanning movement direction of the discharge head and a reading unit that optically reads the reference scale and outputs a signal according to the optical density and in which the reference scale and the reading unit move relatively with each other along with the movement of the discharge head, and a stain detection unit that detects stain of the signal output unit based on a detection result of a strength level of the signal.

Abstract: A printing process for printing an ink pattern on a substrate is provided. The ink pattern to be printed is based on an available pattern layout. The pattern layout defines a desired layout of the ink pattern to be printed. Based on the pattern layout an input image for allocating dot positions of the ink pattern is generated. The printing process includes a step of comparing a scan image with the input image to carry out a quality inspection to detect any print defects in the printed ink pattern. The printing process includes a step of providing a decision on an approval or a rejection of the printed ink pattern. In case of an approval, the substrate can be supplied to a subsequent processing station to finalize the substrate. In case of a rejection, the substrate including print defects can be recycled.

Abstract: A printer that includes a motor assembly for moving a print head relative to a medium, and a processor for receiving a data structure for a pixel to be printed on the medium. The data structure includes perception data and classification data for the pixel. The processor adjusts at least one printing parameter of the printer based upon the classification data.

Abstract: An inkjet print device includes a maintenance device wherein a mesh system and a waste liquid receiver are mounted. The liquid is applied during maintenance on the top of the mesh system and a waste liquid receiver receives the liquid dripping from the back of the mesh system. The mesh system is characterized by including a liquid spreading mesh.

Abstract: A method compensates a failing nozzle of a print head of an inkjet printer. The inkjet printer includes at least one print head, the at least one print head including a plurality of nozzles. A receiving material is moved relatively to the at least one print head.

Abstract: A printer head cleaner can include a housing and a plunger coupled to the housing. The plunger can include a bit retainer and a pusher. The bit retainer is configured to retain a bit. The pusher can advance the bit with respect to the housing and/or rotate the bit when pressure is applied to the plunger. In some implementations, the housing defines one or more registration features that can register a printer head with respect to the housing so that the bit is guided while advancing into the nozzle of a printer head.

Abstract: A fluidic dispensing device includes a housing having an exterior wall and a chamber. The exterior wall has a chip mounting surface defining a first plane and having an opening. The chamber has an interior space. The chamber has an inlet port and an outlet port, the inlet port being separated a distance from the outlet port. An ejection chip is mounted to the chip mounting surface of the exterior wall. The ejection chip is in fluid communication with the opening. A fluid channel is formed in the housing that is in fluid communication with each of the opening, the inlet port, and the outlet port.