Brother Kogyo Kabushiki-kaisha

Shin Hasegawa

Satoru Arakane

Yoshiharu Furuhata

Masashi Kuno

Shota Morikawa

Yasuhiro Nakano

Shotaro Iida

Yoshikazu Takahashi

Tomohiro Nodsu

Hiroto Sugahara

Atsushi Ito

Masashi Ueda

Koji Imai

Akira Iriguchi

Shotaro Kanzaki

Yasuhiro Sekiguchi

Hiroyuki Ishikawa

Masatomo Kojima

Masaharu Ito

Koichiro Hara

Aya Kimura

Masanobu Ogawa

Masaru Someya

There is provided a liquid ejecting apparatus including: a head having a nozzle; a carriage; a receiver; and a controller. The controller is configured to execute: a first flushing processing; a second flushing processing including at least one of a discharge flushing driving and a non-discharge flushing driving of driving; and a printing processing. The first flushing processing is executed in a case that a first count value is not less than a first threshold value, the first count value being an elapsed time since a completion of the first flushing processing. The second flushing processing is executed in a case that a second count value is not less than a second threshold value, the second count value being an elapsed time since a completion of the printing processing.

Liquid ejecting apparatus and controlling method for the same

A liquid discharge apparatus includes: a discharge head including nozzles; a head scanning mechanism that reciprocatingly moves the discharge head in a main scanning direction; a conveyer that conveys a recording medium in a sub-scanning direction; and a controller. In one pass, the controller executes: recording processing in which an image is formed on the recording medium by moving the discharge head in the main scanning direction and discharging liquid from the discharge head; setting processing in which the discharge head moves to a starting position of the recording processing for a subsequent pass following the one pass by changing a moving direction of the discharge head at a standstill position; and conveyance processing in which the recording medium is conveyed in the sub-scanning direction.

Liquid discharge apparatus

A liquid discharging apparatus, having a head with nozzles, a scanning assembly, a conveyer, and a controller, is provided. The controller is configured to determine whether the nozzles are to be flushed in a moving action which accompanies a discharging action, if the controller determines the nozzles are not to be flushed in the moving action, conduct the moving action to move the head at a first acceleration rate; if the controller determines the nozzles are to be flushed in the moving action, determine whether a distance between a flushing range and a discharging range is greater than or equal to a predetermined distance; and if the controller determines the distance is greater than or equal to the predetermined distance, conduct the moving action to move the head at a second acceleration rate and control the head to discharge liquid for flushing the nozzles.

Liquid discharging apparatus, method for controlling the liquid discharging apparatus, and computer-readable storage medium

A liquid discharging apparatus includes a controller configured to execute: a recording processing, a first determining processing, a pre-recording flushing processing, a first flushing processing, and a second flushing processing. In a case that the controller determines, by the first determining processing, that the recording processing is to be executed in the second mode, the controller is configured to make a first flushing interval between the pre-recording flushing processing and the first flushing processing to be longer than a second flushing interval between the first flushing processing and the second flushing processing.

Liquid discharging apparatus, controlling method for the same, and medium storing program

A control device is configured to: control a main scanning device and a sub-scanning device to print partial images by single partial printing in a first case where a specific condition is not satisfied, the specific condition indicating that ink supply to a printing head may be delayed in a partial printing and determined for each of the partial image, control the main scanning device and the sub-scanning device to print the partial images by a plurality of partial printings including a first partial printing and a second partial printing in a second case where the specific condition is satisfied, and determine a first area of the partial image to be printed by the first partial printing and a second area of the partial image to be printed by the second partial printing by using a pixel value information, in the second case.

Image processing device and computer program

A liquid ejection apparatus includes: an ejection head; a head scanning mechanism; a controller; and a storage, wherein the controller is configured to: perform, in a case where viscosity of the liquid satisfies a first condition, a first printing process of: discarding the liquid at a discard position and then printing a partial image; perform, in a case where viscosity of the liquid does not satisfy the first condition, the controller performs a second printing process of: printing the partial image on the recording medium, without discarding the liquid; perform, a division process of dividing the image data corresponding to at least first one pass of the image data into a first division data and a second division data; and, in the second printing process, the controller controls to eject the liquid based on the first division data and eject the liquid based on the second division data.

Liquid ejection apparatus

In a control device, a controller is configured to perform: executing a first print printing a first partial image in a first printing area and a second print printing a second partial image in a second printing area; setting a first ink pressure value for the first print; obtaining a recovery value to be recovered in a time period from completion of the first print to start of the second print; calculating a residual pressure value based on the first ink pressure value and the recovery value; setting a second ink pressure value for the second print using the residual pressure value; and determining whether the second ink pressure value reaches a threshold value. A first mode of print is performed when the second ink pressure value does not reach the threshold value. A second mode of print is performed when the second ink pressure value reaches the threshold value.

Control device controlling printer provided with head and capable of printing in a plurality of modes

A control device includes: a memory; and a controller. A printer includes: a head; and a carriage mounting the head thereon. The controller is configured to perform: selecting first speed information from among a plurality of pieces of speed information stored in the memory, the first speed information indicating a first speed; estimating an ink pressure related value using the first speed information, the ink pressure related value indicating an ink pressure for a first type of print printing an image by ejecting ink from the head while moving the carriage at the first speed; determining whether the ink pressure related value reaches a threshold value; executing the first type of print in response to determining that the ink pressure related value does not reach the threshold value; and executing a second type of print in response to determining that the ink pressure related value reaches the threshold value.

Control device controlling printer provided with head and carriage capable of moving at a plurality of different speeds

A control device controls an image printing by a printing execution unit. The control device performs: determination processing of determining whether a first condition indicating that a supply of ink from an ink supply unit to a printing head is possibly delayed at a partial printing is satisfied, for each of a plurality of band images included in an image to be printed and aligned in a sub-scanning direction; first printing processing of, in a case where the first condition is not satisfied, causing the printing execution unit to print the band image by single time partial printing; and second printing processing of, in a case where the first condition is satisfied, causing the printing execution unit to print each of N partial images included in the band image and aligned in the sub-scanning direction by single time partial printing, to print the band image by N times partial printings.

Control device, printing apparatus and non-transitory computer-readable recording medium

An image processing device configured to: determine whether a specific condition indicating ink supplied from an ink supplier to a printing head may be delayed; generate dot data by using image data, including: generating first dot data when the specific condition is not satisfied; and generating second dot data when the specific condition is satisfied, a ratio of first/second type of dots included in an image based on specific second dot data generated using specific image data being greater/smaller than that included in an image based on specific first dot data generated using the specific image data, and total number of dots included in the image based on the specific second dot data being larger that included in the image based on the specific first dot data; and output printing data based on the dot data.

Image processing device and non-transitory computer-readable medium

An image processing device causing a printing execution unit to: in a first case where a specific condition indicating that ink supply from an ink supply unit to a printing head may be delayed in partial printing is not satisfied, print a partial image by single partial printing; in a second case where the specific condition is satisfied, print the partial image by partial printings including a first partial printing and a second partial printing; in the first case, form a dot having a specific size by the single partial printing, as a dot corresponding to a specific pixel in the partial image; and in the second case, form a dot having a size smaller than the specific size by the first partial printing and form a dot having a size smaller than the specific size by the second partial printing, as the dot corresponding to the specific pixel.

Image processing device, printing apparatus, and storage medium

A liquid ejection head has a plurality of nozzles and has a plurality of drive elements configured to cause the plurality of nozzles to eject liquid. A temperature sensor is configured to detect a temperature of the liquid ejection head. A heat generator generates heat when the plurality of drive elements is driven. A controller is configured to: perform a determining process of determining, based on a particular parameter indicative of a temperature difference, whether the printer is in a first state where the temperature difference is constant or in a second state where the temperature difference varies with time, the temperature difference being a temperature difference between the temperature detected by the temperature sensor and an actual temperature of the liquid ejection head; and control the plurality of drive elements based on a determination result in the determining process.

Printer

There is provided a liquid discharge apparatus including: a liquid discharge head which includes a channel structure provided with a nozzle and a liquid channel, a driving element, and a driving unit; a light emitting part; a liquid receiving part receiving light passed through or reflected by the meniscus; and a controller. The controller controls the driving unit to apply at least one of several kinds of meniscus driving signals to the driving element in a state that the light emitting part emits the light to the nozzle, thereby vibrating the meniscus in the nozzle, and is configured to determine a recovery operation from among several kinds of recovery operations which have mutually different liquid discharge amounts to be discharged from the nozzle, on the basis of an amount of light which is received by the light receiving part in the case of vibrating the meniscus of the liquid.

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Nagoya, Japan

Shin Hasegawa