Abstract: A measurement method of nozzle overlapping width, in a main scanning direction intersecting a conveying direction of a recording medium, in an inkjet recording apparatus including a plurality of heads each having a plurality of nozzles that eject ink, includes a first step (S120), a second step (S130), and a third step (S140). The first step (S120) includes forming an image for measurement on the recording medium, using image data including combination patterns of droplet sizes, different with respect to each of blocks extending along the main scanning direction. The second step (S130) includes selecting the block having uniform density along the main scanning direction, in the image for measurement. The third step (S140) includes determining the nozzle overlapping width using a droplet size ratio adopted to form the image for measurement, on a basis of a position of the selected block.

Abstract: A print component includes an array of fluidic actuation structures including a first column of fluidic actuating structures addressable by a set of actuation addresses, each fluidic actuating structure having a different one of the actuation addresses and having a fluidic architecture type, and a second column of fluidic actuating structures addressable by the set of actuation addresses. Each fluidic actuating structure of the second column has a different one of the actuation addresses and has a same fluidic architecture type as the fluidic actuating structure of the first column having the same address. An address bus communicates the set of addresses to the array of fluidic actuating structures, and a fire signal line communicates a plurality of fire pulse signal types to the array of fluidic actuating structures, the fire pulse signal type depending on the actuation address on the address bus.

Abstract: An ink jet textile printing ink set of the present disclosure includes an ink composition and a process liquid composition, wherein the process liquid composition contains a cationic compound and a compound having one quaternary ammonium in its molecule, and the ink composition contains a pigment and an organic solvent, where the organic solvent is a polyhydric alcohol solvent and the content thereof is 10.0 mass % or more and 55.0 mass % or less.

Abstract: Embodiments include a method performed by a system operative to determine a condition related to a printed section printed by a shuttle-based printer. The method includes printing a portion of an image on a section of a medium, thereby providing a printed section. The section of the medium can have a size defined by at least a step size taken by the shuttle-based printer to advance the medium in a downstream direction. The method also includes scanning at least the printed section to capture a sample image of the printed section. The sample image can be captured by using an imager moving in a direction perpendicular to the downstream direction. The method also includes inspecting at least the sample image to determine a value indicative of a condition related to the printed section.

Abstract: For a multi-pass printing, an image of a unit area is printed by M printing scans of M print regions of first and second nozzle arrays. Each of N pieces of column data is printed by a different printing scan. Ejection data for the first nozzle array is generated using a first mask pattern and ejection data for the second nozzle array is generated using a second mask pattern different from the first mask pattern, for each of the N pieces of column data. On that basis, the first mask pattern and the second mask pattern have a complementary relationship in each of the M print regions. Further, in each of the first mask pattern and the second mask pattern, a combination of print regions, of the M print regions, for printing dots at the same position on the print medium has a mutually complementary relationship.

Abstract: In an example, there is provided a method and apparatus for controlling spit on page operation, the method comprising receiving at least one image to be printed, for each row of a plurality of rows of the image: identifying two or more pixels of the row of the image to be printed by a nozzle of a printhead, determining if a spacing between two consecutive pixels of the two or more pixels is greater than a threshold distance, and in response to a determination that the spacing between the two consecutive pixels is greater than the threshold distance, providing an indication that spit on page dots should be provided when printing the image.

Abstract: An inkjet recording device includes: a head including a nozzle configured to eject ink toward a recording medium; a storage portion storing therein ink and formed with an air communication opening allowing an interior of the storage portion to be communicated with an outside thereof; a valve movable between an opening position opening the air communication opening and a closing position closing the air communication opening; an actuator configured to move the valve; a state sensor configured to output a detection signal based on the state of the inkjet recording device; and a controller configured to perform: (a) determining, on the basis of the detection signal, whether the inkjet recording device has an abnormality; and (b) controlling, in a case where determination is made in (a) that the inkjet recording device has an abnormality, the actuator to move the valve to the closing position from the opening position.

Abstract: Provided is an ink jet recording method in which an image is formed by applying an ink containing a coloring material and a processing liquid containing a flocculant to a surface of a recording medium by a droplet discharge device to coalescence, wherein an application amount of the processing liquid is changed in accordance with an application amount of the ink for each unit area, and is controlled to be 5 g/m2 or less in all of the unit areas in which the images are formed, and when the image is formed in a plurality of printing passes, an average value of the application amounts of the processing liquid in each printing pass in the unit areas in which the application amount of the processing liquid is 0.8 g/m2 or more is controlled so that a deviation when compared between the printing passes is within ±30%.

Abstract: A printing system includes a controller. The controller is configured to: receive first condition information related to an ejection failure in a printer; determine a maintenance manner applicable to the first condition information; cause the printer to perform a maintenance in the determined maintenance manner; receive second condition information related to the ejection failure in the printer after the maintenance is performed; determine whether an ejection performance in the printer has been improved based on the second condition information in response to performing the maintenance; update an evaluation index in accordance with determination of whether the ejection performance in the printer has been improved, the evaluation index corresponding to the determined maintenance manner.

Abstract: A control section controls an ejection operation to eject liquid in each of a first state in which the liquid flows from a supply tank to a liquid ejection head in a supply channel, the liquid flows from the liquid ejection head to a collection tank in a collection channel, and the liquid flows from the collection tank to the supply tank in a feedback channel, and a second state in which the liquid flows from the supply tank to the liquid ejection head in the supply channel and the liquid flows from the supply tank to the liquid ejection head and the liquid flows from the collection tank to the liquid ejection head in the collection channel.

Abstract: Examples relate to a method to print a print job. The method comprise comparing an operational parameter of the print job with a reference operational parameter and determining to perform a maintenance task during the print job based on at least a result of comparing the operational parameter with the reference operational parameter. If the maintenance task is to be performed, the method further comprises determining a safety area on a printable medium and performing a maintenance task on a printable medium.

Abstract: Provided are an inkjet printing apparatus and a recovery method capable of suppressing ink thickening in the ejection openings in the suction process for the ejection openings. A vacuum wiper is moved being in contact with the ejection opening surface of the print head to perform a vacuum wiping process for the arrayed ejection openings sequentially. Ink is circulated in flow paths including the flow paths communicating with the ejection openings for which the vacuum wiping process has been finished.

Abstract: A method of controlling a system including a printhead for printing an image on at least one surface, wherein the at least one surface differs in shape from a nominal surface by a known tolerance, and wherein the printhead and the at least one surface move relative to each other along a predetermined print path comprising at least one swathe. Small dot patterns (referred to as “pathfinders”) are printed on a surface of the object in a preliminary printing pass, then the printed dot patterns are analyzed, for example with a machine vision system. The necessary corrections may then be calculated from this analysis and applied to a subsequent full printing pass.

Abstract: A liquid jetting apparatus includes a casing, a tank formed with a liquid storage chamber which stores liquid, an inlet which allows the liquid to be poured into the liquid storage chamber, and a liquid outflow channel which allows the liquid to flow out from the liquid storage chamber, a conveying mechanism which conveys a recording medium along a conveying path extending in a front-rear direction, a carriage which moves in a left-right direction, and a head mounted on the carriage and having a nozzle which jets the liquid onto the recording medium conveyed by the conveying mechanism. The tank, the conveying path, and the carriage are arranged inside the casing, the tank is arranged outside the conveying path in the left-right direction, and at least a part of the tank is arranged inside both ends of a movement area of the carriage in the left-right direction.

Abstract: A supporting section is disposed to confront an ejection surface and supports a recording medium. A first tank is mounted on a first-tank mount section. A liquid conveying section conveys liquid to a liquid ejecting head. A receiving section receives liquid ejected from the liquid ejecting head. A waste-liquid conveying section conveys liquid to the waste-liquid tank. A first casing holds the liquid ejecting head, the first-tank mount section, and the liquid conveying section. A second casing holds the supporting section, the receiving section, the waste-liquid tank, and the waste-liquid conveying section. The first casing is connected with the second casing such that the first casing is movable relative to the second casing. The first casing takes a first position at which the ejection surface confronts the supporting section and a second position at which the ejection surface is farther away from the supporting section than at the first position.

Abstract: An integrated circuit to drive a plurality of fluid actuation devices includes an interface, a first sensor, a second sensor, and control logic. The interface is to connect to a single contact pad of a host print apparatus. The first sensor is of a first type and is coupled to the interface. The second sensor is of a second type and is coupled to the interface. The second type is different from the first type. The control logic enables the first sensor or the second sensor to provide an enabled sensor. A voltage bias or a current bias applied to the interface generates a sensed current or a sensed voltage, respectively, on the interface indicating the state of the enabled sensor.

Abstract: A liquid jetting apparatus includes a casing, a tank formed with a liquid storage chamber which stores liquid, an inlet which allows the liquid to be poured into the liquid storage chamber, and a liquid outflow channel which allows the liquid to flow out from the liquid storage chamber, a conveying mechanism which conveys a recording medium along a conveying path extending in a front-rear direction, a carriage which moves in a left-right direction, and a head mounted on the carriage and having a nozzle which jets the liquid onto the recording medium conveyed by the conveying mechanism. The tank, the conveying path, and the carriage are arranged inside the casing, the tank is arranged outside the conveying path in the left-right direction, and at least a part of the tank is arranged inside both ends of a movement area of the carriage in the left-right direction.

Abstract: A die for a printhead is provided in examples. The die includes a number of fluidic actuator arrays, proximate to a number of fluid feed holes. A number of address lines are disposed proximate to a number of logic circuits on a low-voltage side of the fluid feed holes. An address decoder circuit is coupled to at least a portion of the address lines to select a fluidic actuator in a fluidic actuator array for firing. The address decoder circuit is customized to select a different address for each fluidic actuator in the fluidic actuator array. A logic circuit triggers a driver circuit located in a high-voltage side of the plurality of fluid feed holes opposite the low-voltage side, based, at least in part, on a bit value for the fluidic actuator array, the fluidic actuator selected by the address decoder circuit, and a firing signal.

Abstract: A liquid ejection head, a liquid ejection apparatus, and a liquid ejection method are capable of sufficiently suppressing the thickening of a liquid in an ejection orifice. The liquid ejection head includes a pressure chamber, a channel in which a liquid is caused to flow through the pressure chamber, an ejection orifice communicating with the pressure chamber, and an ejection energy generation element configured to eject the liquid in the pressure chamber from the ejection orifice. A meniscus of the liquid is formed at an end portion of the ejection orifice communicating with the pressure chamber.

Abstract: A printer configured to perform a printing operation on a printing medium, including: a cylindrically shaped housing including a bottom surface and a cylindrical surface on which an outlet is formed, the housing being configured to be placed on a horizontal table in any of a first posture in which the bottom surface is opposed to the table and a second posture in which a specific portion of the cylindrical surface is opposed to the table, the outlet being formed at a position of the cylindrical surface at which the printing medium stored in the housing is dischargeable from the outlet irrespective of whether the housing takes the first posture or the second posture on the table; and a second-posture keeping structure to keep the housing in the second posture in a state in which the cylindrical surface is opposed to the table.