Abstract: A printing apparatus and a printing method are provided. The printing apparatus that performs a printing through an inkjet method includes: a conveyor driver which is a medium conveyor device; a plurality of ink ejection portions arranged side by side along a conveyance direction; and a plurality of ultraviolet light sources which are a plurality of fixing devices. Each of the ink ejection portions includes a plurality of inkjet heads arranged side by side along the conveyance direction. Each of the plurality of ultraviolet light sources is disposed on a downstream side in the conveyance direction with respect to any one of the ink ejection portions. After the medium passes a position facing the plurality of inkjet heads in one of the ink ejection portions, the ink ejected by the one of the ink ejection portions is fixed to the medium.

Abstract: A recording apparatus that performs recording on a recording medium includes a low temperature marker that, depending on a change in temperature, changes a color state to a low-temperature first color state or to a low-temperature second color state different from the low-temperature first color state, and a surface on which the low temperature marker is disposed. The low temperature marker has a characteristic of indicating the low-temperature second color state when a temperature of the low temperature marker is higher than at least the low-temperature first threshold temperature after reached a temperature lower than or equal to a low-temperature first threshold temperature from an initial state indicating the low temperature first color state.

Abstract: A liquid discharge head includes a channel forming member made of silicon, the channel forming member including a plurality of liquid channels, a natural oxide film having a film thickness of 2 nm or more on an outermost surface of the plurality of liquid channels of the channel forming member, and a surface treatment film on the natural oxide film to contact the natural oxide film. Each of a carbon content and a fluorine content in an interface between the natural oxide film and the surface treatment film is 5 atomic % or less.

Abstract: A method for detecting an operating state of an ejection unit during the printing of an object of a print job the method comprising determining whether the ejection unit is in an operative state or in a malfunctioning state by analyzing a residual pressure wave generated in the liquid in a duct of the ejection unit by an actuation pulse. Further, the method comprises scanning the location of a recording medium onto which liquid has been ejected in order to perform an additional determination of whether the ejection unit is in an operative state or in a malfunctioning state. The method uses both determinations to build feedback information in the form of labeled data that is used in subsequent executions to improve the result of the determinations performed by analyzing a residual pressure wave generated in the liquid.

Abstract: An optical apparatus according to an embodiment of the present disclosure is an apparatus that performs one or both of writing and erasing of information with respect to a reversible recording medium. This optical apparatus includes a plurality of laser devices varying in emission wavelength in a near infrared region (700 nm to 2500 nm), an optical system that multiplexes laser beams outputted from the plurality of laser devices, and a scanner unit that scans a multiplexed light beam obtained by multiplexing by the optical system, on the reversible recording medium.

Abstract: A control device includes: a memory; and a controller. A printer includes: a head; and a carriage mounting the head thereon. The controller is configured to perform: selecting first speed information from among a plurality of pieces of speed information stored in the memory, the first speed information indicating a first speed; estimating an ink pressure related value using the first speed information, the ink pressure related value indicating an ink pressure for a first type of print printing an image by ejecting ink from the head while moving the carriage at the first speed; determining whether the ink pressure related value reaches a threshold value; executing the first type of print in response to determining that the ink pressure related value does not reach the threshold value; and executing a second type of print in response to determining that the ink pressure related value reaches the threshold value.

Abstract: In some examples, a system includes a plurality of fluid ejection devices, a fluid ejection controller, and a plurality of data lines shared by the plurality of fluid ejection devices and connected between the fluid ejection controller and the plurality of fluid ejection devices. A first data line of the plurality of data lines communicates data of a first memory of a first fluid ejection device of the plurality of fluid ejection devices, and a second data line of the plurality of data lines communicates data of a second memory of the first fluid ejection device.

Abstract: An ink jet recording method includes a treatment liquid attachment step, in which a treatment liquid containing at least one flocculant is attached to a recording medium, and an ink attachment step, in which an aqueous ink composition is attached to the recording medium. The treatment liquid attachment step and the ink attachment step are performed through multiple main scans and multiple sub-scans. A main scan is a movement of a recording head in a main scanning direction, and a sub-scan is a movement of the recording medium in a sub-scanning direction, which crosses the main scanning direction. The recording head has a first ejecting nozzle group, which is a line of nozzles arranged in the sub-scanning direction and ejects the treatment liquid, and a second ejecting nozzle group, which is a line of nozzles arranged in the sub-scanning direction and ejects the aqueous ink composition.

Abstract: An image forming apparatus comprises a printhead configured to add energy to an image material including a plurality of color development layers that have different color development characteristics and develop colors in response to heat; and a control unit configured to output, based on image data, signal patterns corresponding to the plurality of color development layers and at least one signal pattern corresponding to a color reproduced by causing at least two of the plurality of color development layers to develop colors used to control the energy to be added to the image material by the printhead.

Abstract: According to examples, there is provided a suction device, system and method for retaining media on a surface. The suction device comprising a suction cup having a vacuum port for coupling the suction cup to a vacuum source, a sealing piston configured to seal the vacuum port when the sealing piston is in a first position, wherein when the sealing piston is in a second, depressed, position the vacuum source is coupled to the suction cup the sealing piston further comprising a piston head extending above a rim of the suction cup when the sealing piston is in the first position, and a biasing element to bias the sealing piston to the first position.

Abstract: A liquid ejecting apparatus includes a liquid ejecting unit, a carriage, an optical machine, a liquid receiving unit, and a suction mechanism. The liquid ejecting unit is designed to form an image by ejecting a droplet from a nozzle formed in a nozzle forming surface to a medium. The carriage holds the liquid ejecting unit. The optical machine is held by the carriage. The liquid receiving unit is designed to receive a liquid discharged from the liquid ejecting unit in a discharge operation for maintenance of the liquid ejecting unit. The suction mechanism has a surface provided with a suction opening that allows ambient air on a liquid ejecting unit side to be sucked therefrom during the discharge operation.

Abstract: A first swath of first dots is printed, such that each column of first dots is disposed along a first direction and is spaced apart from other columns of first dots along a scan direction. Allowable locations of first dots have an irregular extent along at least a first stitch boundary of the first swath. A second swath of second dots is printed similarly. A first stitch boundary of the second swath is proximate to the first stitch boundary of the first swath to form a first stitched region. Allowable locations of second dots have an irregular extent along at least the first stitch boundary of the second swath that is complementary to the irregular extent along the first stitch boundary of the first swath, where the allowable locations of first dots and the second dots in the first stitched region are substantially not interspersed along the first direction.

Abstract: A liquid cartridge includes: a housing having a storage chamber; a liquid passage in communication with the storage chamber; a circuit board; a deformable member; and a movable surface. The liquid passage extends in a first lateral direction from the housing when the housing is in an operational posture. The circuit board is positioned higher than the storage chamber in a vertical direction perpendicular to the first lateral direction and vertically movable relative to the housing. The deformable member is positioned higher than the storage chamber and is lower than the circuit board. The deformable member is deformable vertically relative to the housing. The circuit board is movable vertically in accordance with deformation of the deformable member. The movable surface is positioned further in a second lateral direction opposite the first lateral direction than the circuit board. The movable surface faces upward and is vertically movable relative to the housing.

Abstract: The present invention provides a method for printing a Quality Assurance print chart, QA chart, comprising the steps of: determining the maximum print width for at least one media sheet to be printed subsequently to the printing of the QA chart, selecting from a plurality of media types designated as being suitable for QA charts, a media type that has substantially the same or a greater media width as the determined print width for the at least one media sheet to be printed subsequently, setting a print width for the QA chart substantially to the determined print width, and printing the QA chart with the set print width on the selected media type.

Abstract: An objective of the present invention is to provide an inkjet printing apparatus and an ink filling method capable of restraining a decrease in its availability. For that purpose, in a case where a predetermined negative pressure (determination pressure) is not reached within a predetermined time (determination time) in normal filling operation (first filling operation), it is assumed that a leakage occurs in a cap member, and second filling operation is performed.

Abstract: A liquid coating device includes a coating roller, a supply roller, a pressure roller, a first separator, a second separator, and a sheet receiver. The coating roller coats a sheet with liquid. The supply roller supplies the liquid to the coating roller. The pressure roller sandwiches the sheet, together with the coating roller. The first separator separates the sheet coated with the liquid, from the coating roller. The second separator separates, from the supply roller, a sheet that has not been separated by the first separator and has reached the supply roller. The sheet receiver forms a storage space to accommodate at least a portion of the sheet that has been separated from the supply roller by the second separator.

Abstract: An embodiment of the present invention is a printer that includes a platen roller to feed a print medium, a print head to print on the print medium fed by the platen roller, a connector that is attachable and detachable with respect to the print head the print head, and a controller to stop power supply to the print head via the connector when the platen roller and the print head are separated.

Abstract: A method for printing a three-dimensional object includes printing a first color layer having a first color in a first region of a three-dimensional object, printing a second color layer having a second color in a second region of the three-dimensional object, printing a first structural layer directly onto the first color layer, the first structural layer having a first structural thickness which in combination with a first color thickness forms a first target thickness, and printing a second structural layer directly onto the second color layer, the second structural layer having a second structural thickness which in combination with a second color thickness forms the first target thickness. The first color thickness and the second color thickness are different, and the first structural thickness and the second structural thickness are different.

Abstract: In some examples, a fluidic die includes a plurality of fluid actuators, and a controller to determine, based on input control information relating to controlling actuation of the plurality of fluid actuators, whether a first fluid actuator of the plurality of fluid actuators is to be actuated, and in response to determining that the first fluid actuator is to be actuated, activate a delay element associated with the first fluid actuator, the delay element to delay an activation signal propagated to selected fluid actuators of the plurality of fluid actuators in response to an actuation event.

Abstract: A liquid tank includes a tank body configured to store a liquid to be supplied to a liquid discharge head, a first container, a second container, a partition dividing an interior of the tank body into the first container and the second container, a communication path disposed in the tank body, the communication path connecting the first container and the second container, a liquid inlet communicating with the first container, a liquid outlet disposed at a position lower than the communication path, the liquid outlet communicating with the second container, a first connection port communicating with the first container, the first connection port disposed lower than the liquid inlet and configured to be connected to a supply port of the liquid discharge head, and a second connection port communicating with the second container, the second connection port disposed at a position lower than the liquid outlet.