Abstract: According to an aspect of the present disclosure, there is provided a drying device disposed at a predetermined interval from a recording medium and including a heater configured to dry liquid applied to the recording medium with a high frequency wave. The heater includes a first electrode coupled to a power supply that outputs the high frequency wave and a second electrode coupled to the power supply that outputs the high frequency wave and disposed to be separated from the first electrode at a predetermined interval. The distance between the end of the first electrode and the recording medium is longer compared with the distance between the center of the first electrode and the recording medium.

Abstract: A liquid ejecting head includes a nozzle that is in communication with a pressure chamber and ejects a first liquid, a passage formation substrate that has a liquid passage which extends from a common liquid chamber in communication with a plurality of pressure chambers to the nozzle and through which the first liquid flows, and a circulation passage that is formed in the passage formation substrate, passes near the nozzle, and is not in communication with the liquid passage, and through which a second liquid circulates.

Abstract: A printing apparatus includes a printing head provided with a first nozzle row and a second nozzle row arranged shifted from the first nozzle row in a nozzle alignment direction, and a control unit configured to control ejection of ink from nozzles included in the printing head onto a medium based on print data. The control unit is configured to set an image to be complemented as a partial region of an image to be printed on the medium in accordance with a boundary portion between the first nozzle row and the second nozzle row, assign print data for printing the image to be completed to at least one of a first adjacent nozzle that is a nozzle in the first nozzle row and adjacent to the boundary portion and a second adjacent nozzle that is a nozzle in the second nozzle row and adjacent to the boundary portion, and complement the image to be complemented by ink ejection from at least one of the first adjacent nozzle and the second adjacent nozzle.

Abstract: An image forming apparatus includes: an operation acceptor; a transporter transporting paper along a transport path; an image former forming an image on the paper on the basis of image data; a paper detector detecting a transport status of the paper on the basis of detection results of paper detection sensors provided at various locations on the transport path; a display; a storage storing a predetermined image showing an assumed jam status of the paper and predetermined guidance for clearing the jam status of the paper when a jam occurs while the paper is transported; and a controller. When the jam occurs while the paper is transported, the controller displays, in a user-selectable manner, a predetermined image showing the paper jam status according to the detection result of the paper detector. When the operation acceptor accepts a selection operation, the controller displays the guidance for clearing the paper jam status.

Abstract: Inkjet primer compositions are provided, including those comprising water, a co-medium, and resin particles, wherein the resin particles comprise a polymerization product of reactants comprising one or more types of metal chelating monomers. Inkjet sets for inkjet printing systems are also provided including those comprising such an inkjet primer composition; and an aqueous inkjet ink composition for printing on an ink-receiving layer, the ink-receiving layer comprising the resin particles of the inkjet primer composition, the aqueous inkjet ink composition comprising water, a colorant, and additional resin particles.

Abstract: A recording apparatus includes an ink tank, a recording head, a carriage, an ink supply channel, one or more memory devices, and one or more processors to execute the set of instructions to perform operations including causing the recording head to eject the ink based on print data to perform recording on a recording medium; and obtaining, based on the print data, information on an amount of ink to be ejected to a recordable area in which the carriage moves in one of the first direction and the second direction. A length of the ink supply channel from the bend to the recording head increases in the first direction and decreases in the second direction. The one or more processors changes acceleration of the carriage according to the amount of ink to be ejected to the recordable area, the amount being indicated by the information.

Abstract: An ink jet recording apparatus according to the present invention includes: a conveying unit that conveys a recording medium; a pretreatment unit that performs corona treatment on a surface of the recording medium; an ink image forming unit configured to be able to form an ink image by applying an ink of at least two colors, the ink containing an anionic pigment; a brightness measuring unit that measures brightness of the ink image; and a corona treatment intensity changing unit configured to change a corona treatment intensity of the pretreatment unit based on a result of the brightness measuring unit.

Abstract: A printing system comprises a transport apparatus adapted to transport a flexible web along a process direction and first and second individually controllable ink jet imager units offset from one another along the process direction. Each of the first imager unit and the second imager unit includes a first portion operable to print on a first portion of the web and a second portion operable to print on the second portion of the web wherein each of the first portion and second portion of the first and second imager units is stationary along the process direction and the lateral direction.

Abstract: An inkjet ink set includes a nonwhite ink and a white ink. The nonwhite ink contains a nonwhite pigment, a first polysaccharide, glycol ether, and water. The white ink contains a white pigment and water. The nonwhite ink has a first surface tension of at least 30 mN/m and no greater than 40 mN/m. The first surface tension of the nonwhite ink and a second surface tension of the white ink satisfy formula (1) “5 mN/m?Tc?Tw”. The nonwhite ink has a first viscosity of at least 5.0 mPa·s and no greater than 10.0 mPa·s. The first viscosity of the nonwhite ink and a second viscosity of the white ink satisfy formula (2) “2.0 mPa·s?Vc?Vw”.

Abstract: Techniques and mechanisms are described that enable the mounting of multiple print heads side by side to create a stable single line wide printing width that is suitable at least for single pass and wide format scan printers.

Abstract: A test image printer of an inkjet printer causes a test image, including a mark with a predefined shape and usable to correct an image captured by an image capturing device, and a test pattern usable to inspect a plurality of nozzles, to be printed on a recording medium. An image capture controller controls the image capturing device to capture an image of the test image printed on the recording medium. A corrector compares the image of the mark captured by the image capturing device, to the predefined shape of the mark, to calculate a correction value, and corrects the image of the test pattern, captured by the image capturing device, based on the calculated correction value. An inspector inspects the plurality of nozzles based on the image of the test pattern corrected by the corrector.

Abstract: A meniscus measuring method capable of quickly and accurately measuring meniscus positions in a plurality of nozzles of an inkjet head can be provided. The meniscus measuring method comprises providing a head unit capable of discharging ink through a plurality of nozzles, adhering ink remaining in the plurality of nozzles to a film to form a detection pattern on the film by bringing the film into close contact with the plurality of nozzles, measuring meniscus of ink remaining in the plurality of nozzles based on the detection pattern.

Abstract: An inkjet recording apparatus includes a conveying belt, a recording head, and a flushing controller. The conveying belt includes the plurality of openings formed as a plurality of rows of openings, each row composed of openings arranged at predetermined intervals in a widthwise direction of the conveying belt. The openings of each of the plurality of rows of openings include overlapped portions at which the openings are over-lapped with the openings of any other of the plurality of rows of openings along a widthwise direction of the conveying belt. The flushing controller allows the recording head to do flushing by allowing each of all the nozzles inclusive of the nozzles facing the overlapped portions to eject ink a predetermined number of times.

Abstract: A drying unit includes a first contact heating unit provided inside a housing, and a second contact heating unit provided downstream in a transport direction from the first contact heating unit inside the housing. The first contact heating unit includes a first contact heating surface configured to come into contact with a back surface of a medium after printing. The second contact heating unit includes a second contact heating surface configured to come into contact with the back surface of the medium after printing. The first contact heating surface is curved to have a shape protruding in a direction opposite to the second contact heating surface, and the second contact heating surface is curved to have a shape protruding in a direction opposite to the first contact heating surface. The first contact heating surface has a radius of curvature larger than that of the second contact heating surface.

Abstract: A liquid ejection head including a base substrate, an ejection port to eject a liquid, a heating element formed above the base substrate that heats the liquid to eject the liquid from the ejection port, a temperature detection element formed above the base substrate that detects a temperature of the liquid, a wiring layer connected to the heating element, a protective layer formed on the base substrate that protects the heating element and the wiring layer from the liquid, and a liquid supply port that penetrates the base substrate and supplies the liquid to the ejection port. When viewed in a direction perpendicular to the base substrate, the temperature detection element is disposed between the heating element and the liquid supply port, and the temperature detection element is formed on the protective layer.

Abstract: A liquid discharge apparatus includes a substrate stage configured to move while holding a substrate, a discharge unit including nozzles for discharging a liquid, a control unit configured to control the discharge unit to discharge the liquid from the discharge unit, and a position acquisition unit configured to acquire a position of a movement target object at a predetermined timing while the substrate stage or the discharge unit is moved as the movement target object. The control unit controls a discharge timing for discharging the liquid from the discharge unit, based on a difference between the position of the movement target object acquired by the position acquisition unit at the predetermined timing and a target position of the movement target object at the predetermined timing.

Abstract: A recording apparatus includes a carriage equipped with a recording head that ejects ink to a sheet, a drive unit configured to move the carriage in a width direction of the sheet, an encoder configured to detect first information regarding a position or a velocity of the carriage that moves by the drive unit, an acceleration sensor arranged on the carriage and configured to detect second information regarding acceleration of the carriage, and a control unit configured to stop the carriage, based on the first information and the second information.

Abstract: A head includes: a silicon substrate; an insulating film on the silicon substrate; an electrode wiring on the insulating film; a flexible wiring connected to the electrode wiring; and a conductive film electrically connects the flexible wiring and the electrode wiring in a bonding area. The silicon substrate has an exposed area on a surface of the silicon substrate facing the insulating film, and the exposed area is in a vicinity of the bonding area and is exposed from the insulating film.

Abstract: A printing device comprises a housing, a print head provided in the housing, a mount to which a roll body is detachably mounted, a conveyor configured to convey a printing medium unwounded from the roll body along a conveying path including an upstream path extending from the mount to the print head, and a cutter configured to cut the printing medium at a particular position in the upstream path. The roll body is a sheet type printing medium wounded into a rolled-up state. The conveyor comprises a holder arranged, in the upstream path, at a position between the cutter and the print head. The holder is configured to hold the printing medium in a state where the printing medium is deformed to be corrugated along a direction perpendicular to the conveying direction.

Abstract: A printing apparatus configured to perform printing by a combination of transport of a printing medium by a transport unit and main scanning for discharging ink in association with movement of a scanning unit, wherein the control unit is configured to calculate, a one-time transport amount by the transport unit for each nozzle row at each of the nozzle row positions, the one-time transport amount being a complementary transport amount at which non-discharge of ink by the defective nozzle is complementable by discharge of ink by the normal nozzle, based on a relationship between the main scanning before the transport and the main scanning after the transport, determine a common transport amount to the nozzle rows at the respective nozzle row positions based on the complementary transport amount for each nozzle row, and perform the printing the determined common transport amount as the one-time transport amount by the transport unit.