Seiko Epson Corporation

Akito Sato

Naoki Sudo

Bunji Ishimoto

Yuko Yamamoto

Masahiro Fukazawa

Tomohiro Yuda

Takahide Miyashita

Mai Kubota

Hiroki Sato

Yuichi Yoneyama

Koichi Otsuki

Hirokazu Nunokawa

Satoshi Yamazaki

Yoshiko Hoshiyama

Keiko Yamada

Noboru Tamura

Takuma Hayashi

Takeshi Tanoue

Shinichi Yamada

Toru Matsuyama

Ryoichi Tanaka

Tomoyuki Nakano

Keigo Yamasaki

Hideo Yamazaki

Tatsuo Furuta

Yasuhiro Takeuchi

Hiroki Hayashi

Katsuhiko Sugiyama

It is possible to perform formation of a first pattern, a second pattern, a third pattern and a fourth pattern, a control unit is configured to execute first control and second control or first control and third control, the first control of forming a first patch in which the first and third patterns are disposed without performing conveyance operation, the second control of forming a second patch in which the first and second patterns are disposed and a third patch in which the third and fourth patterns are disposed and the third control of forming a fourth patch in which the first and fourth patterns are disposed and a fifth patch in which the second and third patterns are disposed.

Recording apparatus and recording method

A recording device includes a recording head and a control unit. When recording a raster line forming a partial image of a image, using, of a nozzle row, a plurality of OL nozzles in a positional relationship to record a common raster line, the control unit performs recording using the OL nozzles of a first range, in a range of the OL nozzles in a first direction, when a recording condition is a first recording condition, and performs recording using the OL nozzles of a second range narrower than the first range, of the range of the OL nozzles in the first direction, when the recording condition is a second recording condition in which a density difference, in the image, between the partial image and an image other than the partial image is greater than in the first recording condition.

Recording device and recording method

A printing method for performing printing while complementing black with composite black, the printing method including: printing a test pattern having a plurality of patch images for which composite mode varies, this test pattern being printed for each dot size of the black to be complemented; causing a user to select a desired patch image from among the plurality of the patch images included in the printed test pattern, the selection being made for each of the dot size of the black ink to be complemented; and performing printing while complementing the black to be complemented with the composite black generated on a basis of the composite mode corresponding to the desired patch image selected correspondingly to the dot size of the black ink to be complemented.

Printing method and printing apparatus

A printing apparatus including: a first nozzle group including a first and third nozzles which ejects a first liquid; and a second nozzle group including a second nozzle which ejects a second liquid, in which, when an ejection state of the liquid ejected from the one nozzle which belongs to the first nozzle group is abnormal, complementation is performed using complementation modes of a first complementation mode that increases the amount of a liquid to be ejected from the first nozzle instead of allowing the one nozzle to eject the liquid, a second complementation mode that increases the amount of the liquid to be ejected from the second nozzle instead of allowing the one nozzle to eject the liquid, and a third complementation mode that increases the amount of the liquid to be ejected from the third nozzle instead of allowing the liquid to be ejected from the one nozzle.

Printing apparatus, method of controlling printing apparatus, and control program of printing apparatus

An image forming device in which a plurality of nozzles are aligned in a designated alignment direction, wherein a plurality of pixels constituting a formed image includes dot omission pixels continuous in a scan direction by a defective nozzle included in the plurality of nozzles, and neighboring pixels within a designated distance in the alignment direction from the dot omission pixels, the image forming device comprising a pattern determining unit configured to determine a dot pattern after supplementation formed on neighboring pixels within designated range based on at least the number of dots to be formed on the pixels within the designated range including a portion of the dot omission pixels and a portion of the neighboring pixels according to recording data before supplementation of dots by the defective nozzle, and a pattern forming unit configured to form the dot pattern after supplementation.

Image forming device and dot pattern determining method

There is a provided a liquid droplet discharging control device which causes a liquid droplet discharging apparatus including a head, in which a plurality of nozzles are arranged in a predetermined direction, to perform printing and which is capable of executing a nearby compensation process in which, on the basis of a dot position on which a predetermined nozzle for black ink forms a dot, a nearby nozzle that forms a dot in the vicinity of the dot forms a dot and executing a composite compensation process. The liquid droplet discharging control device includes a parameter acquiring unit that acquires parameters corresponding to the degree of liquid spreading toward a periphery after adhesion of a liquid droplet to a medium, and a compensation switching unit that switches between execution of the nearby compensation process and execution of the composite compensation process on the basis of the parameters.

Liquid droplet discharging control device, liquid droplet discharging control method, and liquid droplet discharging apparatus

Provided is a droplet ejection control apparatus that causes a droplet ejection apparatus including a head in which a plurality of nozzles are disposed being aligned in a predetermined direction to perform overlap printing in which printing is duplicated in a predetermined region using a first nozzle row group and a second nozzle row group, and includes a control unit which sets an amount of droplets, when a predetermined condition is satisfied, to a value corresponding to the stated condition based on print control data according to which the first nozzle row group and the second nozzle row group perform superimposition printing.

Droplet ejection control apparatus, droplet ejection control method, and droplet ejection apparatus

There is provided a liquid droplet discharging control device for a liquid droplet discharging apparatus which includes a liquid droplet discharging head in which a plurality of nozzles discharging liquid droplets are formed, discharges liquid droplets while relatively moving the head and a medium in a direction intersecting a direction in which the nozzles are arranged. The liquid droplet discharging control device includes a controller that causes a first nearby nozzle, which discharges a dot adjacent to a dot row corresponding to a predetermined nozzle which is not capable of discharging a liquid droplet, to discharge a liquid droplet for a dot of a large size and that causes a second nearby nozzle, which is separated from the predetermined nozzle and discharges a dot adjacent to a dot row corresponding to the first nearby nozzle, to discharge no liquid droplet for a dot.

Liquid droplet discharging control device, Liquid droplet discharging control method, and liquid droplet discharging apparatus

An image forming device includes a pattern determining unit and a pattern forming unit. In response to determining that dots are formed continuously in a moving direction on a dot omission pixels within a designated range in the moving direction based on recording data before supplementation of dots by a defective nozzle, and in response to determining that dots are formed continuously in the moving direction on adjacent pixels within the designated range, the pattern determining unit determines a dot pattern after supplementation for a plurality of pixels based on the recording data such that the dot pattern after supplementation is indicative of either enlarging at least a portion of dots formed on the adjacent pixels within the designated range or arranging dots in secondary adjacent pixels within the designated range regardless of dot arrangement of the secondary adjacent pixels according to the recording data before supplementation of dots.

In a droplet ejection control apparatus according to the invention, a judgment section judges, taking a dot position that is assigned by a predetermined nozzle (incorrect ejection position) as a reference, whether or not a printing state is such that a second proximity dot lands earlier than a first proximity dot. A changing section changes an ejection state, when the ejection state is judged to be such that the second proximity dot lands earlier than the first proximity dot, to another ejection state in which the first proximity dot lands earlier than the second proximity dot.

A printing control apparatus includes a defective nozzle detecting section that detects a defective nozzle included in the plurality of nozzles; and a complementing section that forms a complementary dot which complements dots of a first raster to be recorded using the defective nozzle on at least one of a second raster and the first raster using a complementary nozzle included in the plurality of nozzles. The complementing section includes an adjusting section which sets main scanning being performed after the defective nozzle is detected as a first main scanning, sets main scanning being performed M times after the defective nozzle is detected as a M-th main scanning, and allows a usage rate of ink in the first main scanning to be greater than a usage rate of ink in the M-th main scanning, regarding the usage rate of ink discharged using the same complementary nozzle.

Printing control apparatus and printing control method

A recording method for performing recording on a medium by forming dots by ejecting a liquid from nozzles during scanning. The recording method includes detecting an abnormal nozzle; disposing a normal nozzle in a row where dot missing occurs due to the abnormal nozzle by moving a medium by a first moving amount; performing first complementary recording in which at least a part of a dot missing region is complemented by a first dot which is recorded by the normal nozzle during the scanning; moving the medium by a second moving amount; and performing second complementary recording in which a second dot of which a size is greater than a size of a dot determined based on printing data is recorded on a row adjacent to a row of the abnormal nozzle by the normal nozzle that is positioned adjacent to the abnormal nozzle during the scanning.

Recording method and recording apparatus

A recording apparatus is provided in which a recording medium and a plurality of nozzles including a plurality of nozzles for black which is lined up in a predetermined line-up direction to form black dots and a plurality of nozzles for color which is lined up in the line-up direction to form composite black dots move relatively in a relative movement direction that is different from the line-up direction. The recording apparatus includes a processing unit that forms composite black dots with a nozzle group included in the plurality of nozzles for color to complement dots which are to be formed by a failed nozzle included in the plurality of nozzles for black. The nozzle group includes a plurality of nozzles that is positioned differently in the line-up direction.

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Matsumoto, Japan

Akito Sato