Seiko Epson Corporation

Takashi Tamai

Takeshi Tanoue

Toshiyuki Suzuki

Takamitsu Kondo

Tomoyuki Kondo

Kimitaka Kamijo

Jun Hoshii

Eishin Yoshikawa

Masako Fukuda

A recording device includes a recording head including a first nozzle group that ejects a first ink and a second nozzle group that ejects a second ink having a color different from that of the first ink, a moving unit that relatively moves the recording head and a medium in a moving direction intersecting with a nozzle alignment direction, and a control unit. The recording head includes a first nozzle range in which a distance between the first nozzle group and the second nozzle group in the moving direction is a first distance and a second nozzle range in which the distance is a second distance greater than the first distance. In a case in which recording is performed on a medium using nozzles belonging to the second nozzle range, when recording is performed with a secondary color through ejection of the first ink and the second ink.

Recording device and recording method

Provided is a printing method for performing printing using a serial printer. In printing of a print image including a line image, the printing method includes a raster line forming step of forming each of raster lines configuring the image, by a plurality of pass operations. In the formation of each of the raster lines, when printing of a region corresponding to edge pixels of the line image by a first pass operation, which is one of the plurality of pass operations, is first printing, and printing of the region corresponding to the edge pixels by a second pass operation that is different from the first pass operation, of the plurality of pass operations, is second printing, a brightness of the printing by the second printing is higher than a brightness of the printing by the first printing.

Printing method in which each of raster lines configuring line image is formed by plurality of pass operations, printing device that forms each of raster lines configuring line image by plurality of pass operations, and printing system

A recording device includes a recording unit configured to discharge a plurality of colors of ink, and a control unit configured to control the recording unit to perform recording of an image on a recording medium, wherein the control unit is configured to perform color expansion processing to copy, to a target pixel, a recording amount of first ink included in another pixel, the target pixel and the other pixel configuring image data representing the image, the target pixel being adjacent to the other pixel, the other pixel including the recording amount of the first ink of the plurality of colors of ink, the target pixel including a recording amount of second ink of the plurality of colors of ink, and cause the recording unit to perform recording based on the image data after the color expansion processing. The target pixel does not include the recording amount of the first ink, and the second ink has a different color than the first ink.

A printing control device includes a nozzle information obtainment unit that obtains the position of a discharge-failing nozzle which fails to discharge ink in a printing head which includes a plurality of nozzles discharging ink, a data generation unit that generates printing data in which a dot position which is the position of a dot constituting an image printed on a printing medium is associated with the amount of ink discharged to the dot position, and a data correction unit that specifies a second position which is adjacent to a first position where ink is discharged by the discharge-failing nozzle in the printing data on the basis of the position of the discharge-failing nozzle obtained and corrects the printing data so that the amount of ink which is greater than the amount of ink associated with the second position in the printing data generated is associated with the second position.

Printing control device, printing control method, and printing control program

A printing control device includes a nozzle information obtainment unit that obtains the position of a discharge-failing nozzle which fails to discharge ink in a printing head which includes a nozzle array, a data generation unit that generates printing data in which a dot position is associated with a nozzle which discharges ink so that a raster which is one line and is configured by a plurality of dot positions is configured through multiple times of a scan, and a data correction unit that specifies a first position which is the position where ink is discharged by a discharge-failing nozzle and corrects the printing data so that non-discharge of ink is associated with the first position, and discharge of ink is associated with a second position between which the first position is interposed when discharge of ink is associated with the first position in the printing data generated.

A droplet ejecting apparatus which includes a control unit which controls a recording operation in which dots are recorded on a medium by performing multipass recording in which recording of dots which are located in one main scanning line which goes along a main scanning direction is completed in a recording operation in the main scanning direction of N times (N is integer of 2 or greater), and a maintenance operation in which maintenance with respect to an ejecting unit is performed, in which the control unit performs a control so that at least recording operations in the main scanning direction of (N&#x2212;1) times is performed between the previous maintenance operation and the subsequent maintenance operation when performing maintenance operations of a plurality of times.

Droplet ejecting apparatus and droplet ejecting method

A printing apparatus that performs printing on a printing medium, comprising an ejecting unit that reciprocates in a main scanning direction which is a width direction of the printing medium, ejecting a liquid onto the printing medium when moving at least in a forward direction of the main scanning direction; and a control unit that controls an operation of the printing apparatus, wherein in one movement of the ejecting unit in the forward direction, the control unit includes a specific operation mode which causes the ejecting unit to move to a predetermined distance in addition to a width of an image when the width of the image to be printed on the printing medium is less than a predetermined value.

Printing apparatus and manufacturing method of printed matter

A printing apparatus includes a controller forming an image on a printing-medium by repeating an image-forming-operation of allowing a plurality of nozzle-columns to be moved and allowing the plurality of nozzle-columns to eject ink and a transporting-operations of allowing the printing-medium to be transported. The controller forms a first-image by an image-forming-operation where the moving-direction of a nozzle-column is one direction in a second direction by using a first-image-nozzle-group configured with the nozzles included in the first-nozzle-column. In addition, the controller forms a second-image which is overlapped with the first-image by an image-forming-operation where the moving-direction of a nozzle-column is one direction and by an image-forming-operation where the moving-direction of the nozzle-column is the direction opposite to the one direction by using a second-image-nozzle-group configured with the nozzles of which positions in the first direction are different from those of the first-image-nozzle-group among the nozzles included in the second-nozzle-column.

Printing process of forming two images on printing medium in overlapping manner

The printing apparatus includes a control-section for forming an image on a print-medium by repeating an image-formation-operation and a transport-operation. Through the image-formation-operation, a plurality of nozzle-arrays discharges an ink while a moving-mechanism moves the plurality of nozzle-arrays, and through the transport-operation, the print-medium is transported to the transport-mechanism. The control-section forms a first-image by using a nozzle group for the first-image. The nozzle-group for the first-image is formed of N nozzles included in a first-nozzle-array of the plurality of nozzle-arrays. In addition, the control-section forms a second-image, which overlaps with the first-image on the print-medium, by using a nozzle-group for the second-image. The nozzle-group for the second-image is formed of M nozzles among the nozzles included in the second-nozzle-array of the plurality of nozzle-arrays, and the position of the nozzle-group for the second-image is different from that of the nozzle-group for the first-image in a first-direction.

Printing process of forming two images on print medium in overlapping manner

Two types of decimating mask patterns having different ink gradation ratio distributions are prepared, and in the outbound and inbound passes of a head unit during bidirectional printing, the numbers of times ink is ejected from nozzle rows in recording heads provided for each ink are controlled using mask patterns that differ in accordance with the darkness of the ink.

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Shiojiri, Japan

Takashi Tamai