Abstract: According to one embodiment, the inkjet head of an application example includes a pressure chamber for charging the ink, an actuator for changing the volume of the pressure chamber, a nozzle for discharging the ink inside the pressure chamber when the volume of the pressure chamber is changed, and a controller that, in the formation of one pixel by discharging ink drops from the nozzle, when the elapsed interval from discharging ink drops last time by the nozzle is less than the specified interval, outputs the discharging waveform corresponding to the ink drop number determined for the formation of the pixel, and when the elapsed interval is more than the specified interval, increases the number of ink drop discharge cycles above the number determined for the formation of the pixel.

Abstract: A printing apparatus includes a first control unit that controls execution of a first temperature adjusting operation in which heating is performed in a region in which all of orifices are arranged; a second control unit that controls execution of a second temperature adjusting operation in which, compared to a predetermined region in which a predetermined number of orifices from respective ends in an orifice arrangement direction are arranged in the orifice arrangement direction, heating is performed with a lower extent of heating in a region in which the orifices outside the predetermined region are arranged; and a temperature adjusting control unit that controls execution of a multi-stage temperature adjusting operation performed on a printhead that includes the first temperature adjusting operation and the second temperature adjusting operation by controlling the first control unit and the second control unit before printing starts.

Abstract: An inkjet printer and a method of operating an inkjet printer provide a luminescent background for facilitating viewing of indicia printed on porous media in no-light or low-light conditions. The printer and method apply a first enhancement material to a surface of porous media to which ink has been applied to form indicia and a second enhancement material to a back side of porous media. The two enhancement materials combine through the porous media to provide a luminescent background for the indicia printed on the media. The two surfaces of the porous media can be covered with laminating material to protect the enhancement materials.

Abstract: A liquid ejection apparatus includes: a recording portion; a medium-supply portion; a support member for supporting a recording medium while facing the recording portion; a conveyor mechanism including a conveyance guide and a conveyor roller; a first housing accommodating the recording portion; and a second housing accommodating the medium-supply portion, the support member, and the conveyor mechanism. The first housing is pivotable about a pivot shaft with respect to the second housing. The conveyance guide includes a guide portion disposed downstream of the conveyor roller and upstream of the recording portion and having an inclined guide face. The guide portion is opposed to the recording portion in the second direction with a clearance therebetween. The recording portion is configured to pass through a space corresponding to the clearance when the first housing is pivoted between the ejection position and the distant position.

Abstract: Systems and methods are provided for generating flush lines that do not interfere with control marks for post-processing equipment. The system includes a print controller able to receive a print job and to insert printable control marks into the print job to direct the actions of post-processing equipment. The system also includes an ink flushing controller that can detect horizontal locations of the control marks along the width of the print job. Responsive to detecting the locations of the control marks, the ink flushing controller can generate flush lines for the print job that have altered optical densities at the horizontal locations.

Abstract: A printhead in a printer is configured to eject a colored ink and a clear ink. The printhead is aligned with other printheads in the printer to register the clear ink ejected by the printhead with colored ink ejected by the other printheads by ejecting the colored ink from the printhead and analyzing image data of the colored ink.

Abstract: A nozzle surface (nozzle plate) of a printing head which ejects UV-curable ink from a nozzle is tilted with a predetermined inclination angle ? with respect to the recording surface of a recording sheet so as to face the opposite side to an ultraviolet irradiator. In this manner, it is difficult for the ultraviolet light which is radiated from the ultraviolet irradiator, and is reflected on the recording sheet to input to the nozzle plate, and it is possible to prevent ink in the nozzle from being thickened, or being cured due to the ultraviolet light.

Abstract: A printing system includes a plurality of imaging systems for capturing images of a receiver medium. An illumination system illuminates the receiver medium with an illumination pattern, thereby providing a reflected illumination pattern and a transmitted illumination pattern. A first imaging system is positioned to capture a first image of a first side of the receiver medium including the reflected illumination pattern, and a second imaging system is positioned to capture a second image of an opposing second side of the receiver medium including the transmitted illumination pattern. The first and second images are analyzed to determine a relative position of the reflected illumination pattern in the first image and the transmitted illumination pattern in the second image. Imaging system alignment parameters for use in aligning images captured with the first and second imaging systems are determined responsive to the determined relative position.

Abstract: A liquid ejection apparatus including: a head having an ejection face having ejection openings through which liquid is ejected, an ejection space being defined so as to face the ejection face; a sealing mechanism configured to selectively establish a sealing state for sealing the ejection space and an unsealing state; a humid-air supply mechanism configured to supply humid air into the ejection space in the sealing state; and a controller. The controller controls the humid-air supply mechanism to humidify the ejection space such that a humidity in the ejection space becomes equal to or higher than a predetermined humidity. The controller controls the head to perform a non-ejection flushing in at least one of a humidification period in which the humid-air supply mechanism humidifies the ejection space and a post-humidification period that extends for a first period from a completion of the humidification.

Abstract: Disclosed are an inkjet print head and a method of manufacturing the same. An inkjet print head according to an aspect of the invention may include: an inkjet board having an ink passage therein; a cutting portion provided outside the ink passage of the inkjet board and having a cutting surface created by separation into head chip units of the inkjet board; and an auxiliary cutting portion provided from one surface of the cutting portion inwardly in a thickness direction of the inkjet board, and assisting the separation into head chip units of the inkjet board.

Abstract: In one example, a first swath is caused to be printed by a print unit on a media. The media is advanced with respect to the print unit. For a nominal second swath to be printed to beneath and adjacent to the first swath, a plurality of adjustment regions along the width of the nominal second swath are determined in accordance with a profile of non-constant advance errors for the media. An adjusted second swath is formed by, for each of the regions, adjusting the height of the nominal second swath in memory based on the determined amount of advancement error for the region. The print unit is caused to print the adjusted second swath on the media.

Abstract: A heater stuck includes first strata having a planar configuration supporting and forming a fluid heater element responsive to repetitive electrical activation and deactivation to produce repetitive cycles of fluid ejection from an ejection chamber above the heater element and second strata having a planar configuration coating the heater element of the first strata and being contiguous with the ejection chamber to protect the heater element. The first strata include a substrate and heater strata disposed on it and forming a cavity above the substrate and encompassed on three sides by the heater substrata. The heater substrata includes a pair of conductive layer portions constituting terminal leads disposed on the substrate at opposite sides of the cavity and a resistive layer disposed on the conductive layer portions and defining the fluid heater element that spans the top of the cavity.

Abstract: An inter-terminal connection structure includes: a first terminal; a second terminal which is separated from the first terminal and is mounted on a container main body for storing a liquid storage body; a first connection member which is in contact with the first terminal, is mounted on the liquid storage body, and has conductivity; and a second connection member which is for connection to the second terminal, is mounted on the container main body, and has conductivity, wherein, when the liquid storage body is accommodated in the container main body, in order to cause the first connection member to come in contact with a first contact portion of the second connection member, the container main body has a positioning member for determining a position of a first site of the first contact portion which is to come in contact with the first connection member inside the container main body.

Abstract: Inkjet droplets having a vaporizable carrier fluid are jetted from a printhead according to image data. A heated condensation shield between the printhead and a target area at which the printhead directs drops protects against condensation of vaporized carrier fluid and creates heat. A heat shield between the printhead and a support structure for the printhead protects the printhead and support structure from heat and condensation. A heated zone exists between the heat shield and the condensation shield. The condensation shield is heated to a temperature above a condensation temperature of vaporized carrier fluid in the second region so that ink droplets that pass through the heated zone are heated in a manner that causes ink droplets having a first concentration to spread when printed onto a paper in the target area as if the ink droplets had a higher concentration of at least one percent.

Abstract: According to an embodiment, an inkjet device includes a first temperature sensor which detects an ink temperature in an upstream side of a print head, a second temperature sensor which detects an ink temperature in a downstream side of the print head, and a control device which changes at least one of energies per unit volume of first and second pressure sources, based on the temperatures detected by the first and second temperature sensors.

Abstract: Methods for operating a printing system are provided. In one method, an inkjet printhead that is positioned by a support structure is caused to emit droplets of an ink including vaporizable carrier fluid toward a target area to emit droplets according to image data and a shield is used to separate the support structure from the target area to form a first region between the support structure and the shield and a second region between the shield and the target area with the shield providing an opening between the first region and the second region to allow the inkjet printhead to jet droplets to the target area. The shield is heated to a temperature that is at least equal to a condensation temperature of the vaporized carrier fluid in the second region.

Abstract: An inkjet printer forms ink images from image data including colors in a device independent color space. A color profile associated with the printer maps a plurality of colors in the device independent color space and to a plurality of ink colors formed from a plurality of inks in the printer. The plurality of ink colors only includes colors that are formed with an ink mass density that is below a predetermined threshold.

Abstract: A method for printing an image to convey information to both a sighted person and a visually-impaired person. An image including image content is printed on a receiver medium using one or more visible colorants, the printed image being viewable by the sighted person. A vocabulary of different tactile patterns is defined, each tactile pattern having a defined meaning. Tactile patterns are selected from the predefined vocabulary and are provided on the surface of the printed image such that when a visually-impaired person touches the tactile pattern at a particular location, the tactile pattern conveys information about the corresponding image content at the particular location to the visually-impaired person.

Abstract: Detecting an issue in a digital printer that has an optical element positioned to direct a laser beam towards a photoconductor surface may include sending optical element position commands to move the optical element to compensate for inconsistent movements of a photoconductor drum and creating a record of the optical element position commands.

Abstract: A recording head that includes a pressure chamber filled with ink and a piezoelectric element changing pressure inside the pressure chamber, and that ejects ink from the nozzle according to the change in the pressure inside the pressure chamber. A control unit controls the piezoelectric element and performs ejection driving for ejecting the ink from the nozzle or micro-vibration driving for micro-vibrating a liquid surface inside the nozzle to an extent at which the ink is not ejected from the nozzle; and performs a flushing operation of an ejection amount according to a number of times of micro-vibration driving in a driving period, in a preparation period after the driving period has passed.