Abstract: A liquid ejecting apparatus includes: a printing head; and a liquid supply unit. The printing head has a reservoir, a plurality of liquid supply ports connected to the reservoir, and a liquid introduction inlet. A first liquid supply port and a second liquid supply port are positioned at ends of the plurality of liquid supply ports in a first direction. Outer periphery of the liquid introduction inlet includes one end section and another end section in the first direction. The one end section is closer to the first liquid supply port than the second liquid supply port. The liquid includes a first liquid with a high content of pigment, and a second liquid with a lower content of pigment. The liquid supply unit supplies the second liquid to the one end section of the liquid introduction inlet.

Abstract: A common liquid chamber that communicates with a plurality of pressure chambers includes at least one inflow port into which a liquid flows, a plurality of supply openings, arranged in a row, for supplying the liquid to each of the pressure chambers, and a slanted surface that, when viewed from a second direction that is orthogonal to an arrangement direction in which the supply openings are arranged and that follows a substrate in which the common liquid chamber is formed, is slanted so that the slanted surface overlaps with the arrangement of some of the supply openings including supply openings located at ends of the arrangement direction and approaches the arrangement of the supply openings at the end areas of the arrangement direction. At least part of the inflow port is located within the range of the arrangement of the stated some of the supply openings when viewed from the second direction.

Abstract: A liquid ejection apparatus includes a liquid ejection unit including a nozzle formation surface in which an opening of a nozzle for ejecting liquid is formed; a wiper disposed so that the wiper can come in contact with the nozzle formation surface; and a liquid collection portion, which is capable of collecting liquid adhered to the wiper, disposed on an end side of the nozzle formation surface of the liquid ejection unit so as to be spaced apart from the nozzle formation surface in a wiping direction. The liquid collection portion includes a scraper having a scraping surface that scrapes off the liquid adhered to the wiper by coming in contact with the wiper, and a liquid absorbing material disposed at a position that does not come in contact with the wiper and at a position that comes in contact with an end portion of the scraping surface.

Abstract: A liquid ejecting head includes a first member including a communication flow path communicating with a pressure chamber, and a second member joined to the first member and including a nozzle communicating with the communication flow path. The communication flow path includes a first flow path section adjacent to the pressure chamber, a second flow path section adjacent to the nozzle and wider than the first flow path section, and an intermediate flow path section including a sloped surface formed between the first flow path section and the second flow path section. An equation “H?W tan(?/4??/2)?0” is satisfied in which H represents a length of the second flow path section, W represents a maximum width of the second flow path, and ? represents an angle between an imaginary plane parallel to the bottom face of the communication flow path and the sloped surface.

Abstract: A liquid ejection apparatus includes a liquid ejection unit including a nozzle formation surface in which an opening of a nozzle for ejecting liquid is formed; a wiper disposed so that the wiper can come in contact with the nozzle formation surface; and a liquid collection portion, which is capable of collecting liquid adhered to the wiper, disposed on an end side of the nozzle formation surface of the liquid ejection unit so as to be spaced apart from the nozzle formation surface in a wiping direction. The liquid collection portion includes a scraper having a scraping surface that scrapes off the liquid adhered to the wiper by coming in contact with the wiper, and a liquid absorbing material disposed at a position that does not come in contact with the wiper and at a position that comes in contact with an end portion of the scraping surface.

Abstract: A common liquid chamber that communicates with a plurality of pressure chambers includes at least one inflow port into which a liquid flows, a plurality of supply openings, arranged in a row, for supplying the liquid to each of the pressure chambers, and a slanted surface that, when viewed from a second direction that is orthogonal to an arrangement direction in which the supply openings are arranged and that follows a substrate in which the common liquid chamber is formed, is slanted so that the slanted surface overlaps with the arrangement of some of the supply openings including supply openings located at ends of the arrangement direction and approaches the arrangement of the supply openings at the end areas of the arrangement direction. At least part of the inflow port is located within the range of the arrangement of the stated some of the supply openings when viewed from the second direction.

Abstract: A liquid ejecting head includes a first member including a communication flow path communicating with a pressure chamber, and a second member joined to the first member and including a nozzle communicating with the communication flow path. The communication flow path includes a first flow path section adjacent to the pressure chamber, a second flow path section adjacent to the nozzle and wider than the first flow path section, and an intermediate flow path section including a sloped surface formed between the first flow path section and the second flow path section. An equation “H?Wtan(?/4??/2)?0” is satisfied in which H represents a length of the second flow path section, W represents a maximum width of the second flow path, and ? represents an angle between an imaginary plane parallel to the bottom face of the communication flow path and the sloped surface.

Abstract: At the time of setting a correction value for a certain density (subject density), a higher side density that is higher than the certain density and a lower side density that is lower than the certain density to be referenced according to the measured value of a region printed at the certain density are arbitrarily specified, and a correction value for the certain density is set by using at least one of a measured value of the density of a region printed at the arbitrarily specified higher side density and a measured value of the density of a region printed at the arbitrarily specified lower side density.

Abstract: A printing method according to the present invention includes carrying a medium, and printing, using a nozzle for ejecting ink, a plurality of images each having a section to be detected for detecting an inclination of the image with respect to the carried medium.

Abstract: A method for measuring density, includes: forming on a medium a pattern that consists of a plurality of dot rows formed respectively in a plurality of row regions lined up in a direction intersecting a movement direction in which a plurality of nozzles move, by forming each of the dot rows in the row region arranged in the movement direction by ejecting ink from the nozzles; reading the pattern by a scanner; measuring density of each of the row regions of the read pattern; calculating respective modification values corresponding to each of the row regions, based on at least a part of a measurement result of the density of the plurality of the row regions; and modifying respective measured values of the density of each of the row regions based on the respective modification values corresponding to each of the row regions.

Abstract: A printing method according to the present invention includes carrying a medium, and printing, using a nozzle for ejecting ink, a plurality of images each having a section to be detected for detecting an inclination of the image with respect to the carried medium.

Abstract: A method for measuring density, includes: forming on a medium a pattern that consists of a plurality of dot rows formed respectively in a plurality of row regions lined up in a direction intersecting a movement direction in which a plurality of nozzles move, by forming each of the dot rows in the row region arranged in the movement direction by ejecting ink from the nozzles; reading the pattern by a scanner; measuring density of each of the row regions of the read pattern; calculating respective modification values corresponding to each of the row regions, based on at least a part of a measurement result of the density of the plurality of the row regions; and modifying respective measured values of the density of each of the row regions based on the respective modification values corresponding to each of the row regions.

Abstract: Quality of a printed image is improved while minimizing the amount of memory used. For example, a print-control method includes: a first print-control step of repeatedly performing a unit image formation operation of forming a unit image in a unit area on a medium by ejecting ink from nozzles arranged in a predetermined direction and moved in a movement direction, and a first carrying operation of carrying the medium by a predetermined carry amount, to print an image in an end portion, in a carrying direction, of the medium; and a second print-control step of repeatedly performing the unit image formation operation and a second carrying operation of carrying the medium by another predetermined carry amount, to print an image in an intermediate portion, in the carrying direction, of the medium.

Abstract: A method for liquid ejection includes the steps of: moving nozzles, which eject a liquid, in a movement direction; supporting a medium with a plurality of supporting sections that are arranged at different positions in the movement direction; and forming a plurality of patterns for adjusting a liquid ejection timing by ejecting the liquid from the nozzles onto the medium supported by the supporting sections; wherein a group of patterns, from among the plurality of patterns, that are formed in the movement direction is a group of patterns for coarse adjustment; and wherein a group of patterns, from among the plurality of patterns, that are formed in a direction that intersects the movement direction is a group of patterns for fine adjustment.

Abstract: A printing method according to the present invention includes carrying a medium, and printing, using a nozzle for ejecting ink, a plurality of images each having a section to be detected for detecting an inclination of the image with respect to the carried medium.

Abstract: A method for measuring density, includes: forming on a medium a pattern that consists of a plurality of dot rows formed respectively in a plurality of row regions lined up in a direction intersecting a movement direction in which a plurality of nozzles move, by forming each of the dot rows in the row region arranged in the movement direction by ejecting ink from the nozzles; reading the pattern by a scanner; measuring density of each of the row regions of the read pattern; calculating respective modification values corresponding to each of the row regions, based on at least a part of a measurement result of the density of the plurality of the row regions; and modifying respective measured values of the density of each of the row regions based on the respective modification values corresponding to each of the row regions.

Abstract: At the time of setting a correction value for a certain density (subject density), a higher side density that is higher than the certain density and a lower side density that is lower than the certain density to be referenced according to the measured value of a region printed at the certain density are arbitrarily specified, and a correction value for the certain density is set by using at least one of a measured value of the density of a region printed at the arbitrarily specified higher side density and a measured value of the density of a region printed at the arbitrarily specified lower side density.

Abstract: Quality of a printed image is improved while minimizing the amount of memory used. For example, a print-control method includes: a first print-control step of repeatedly performing a unit image formation operation of forming a unit image in a unit area on a medium by ejecting ink from nozzles arranged in a predetermined direction and moved in a movement direction, and a first carrying operation of carrying the medium by a predetermined carry amount, to print an image in an end portion, in a carrying direction, of the medium; and a second print-control step of repeatedly performing the unit image formation operation and a second carrying operation of carrying the medium by another predetermined carry amount, to print an image in an intermediate portion, in the carrying direction, of the medium.

Abstract: A method for liquid ejection includes the steps of: moving nozzles, which eject a liquid, in a movement direction; supporting a medium with a plurality of supporting sections that are arranged at different positions in the movement direction; and forming a plurality of patterns for adjusting a liquid ejection timing by ejecting the liquid from the nozzles onto the medium supported by the supporting sections; wherein a group of patterns, from among the plurality of patterns, that are formed in the movement direction is a group of patterns for coarse adjustment; and wherein a group of patterns, from among the plurality of patterns, that are formed in a direction that intersects the movement direction is a group of patterns for fine adjustment.

Abstract: A printing apparatus, a print head, and a printing method with which clear ink can be printed at an appropriate timing are provided. A printing apparatus has, for example: a carrying mechanism for carrying a medium in a carrying direction; and a print head having a plurality of nozzles for ejecting ink to form dots on the medium carried by the carrying mechanism, wherein the print head includes: a first nozzle row having a plurality of nozzles that are for ejecting ink not having color material and that are arranged in the, carrying direction; and a second nozzle row having a plurality of nozzles that are for ejecting ink having color material and that are arranged in the carrying direction, and wherein the first nozzle row is arranged at least on one of an upstream side and a downstream side of the second nozzle row in the carrying direction.