Canon Kabushiki Kaisha

Hideyuki Kido

Tomofumi Nishida

Nobutsune Kobayashi

Shinichi Yukiura

Ryoji Kanoyadani

Hirokazu Ishii

Nobuyuki Bannai

Toshiyuki Kuroda

Shigeki Hachiro

It is determined based on processing to be performed on image data generated by reading by a first reading unit and a second reading unit, whether to separate, into image data of the first surface and image data of the second surface, image data that has been generated by reading by the first reading unit configured to read the first surface of a document, and the second reading unit configured to read the second surface of the document, and that includes the first surface and the second surface. When it is determined to separate the image data, the image data including the first surface and the second surface is separated into the image data of the first surface and the image data of the second surface.

Image reading apparatus and control method

An apparatus according to the present invention includes a reception unit which receives selection of a function from a plurality of types of functions, an execution unit which executes the function received by the reception unit, a determination unit which determines whether temperature rise suppression of a predetermined driving element is necessary, and a stop control unit which performs stop control on the predetermined driving element in accordance with the type of the selected function, if the determination unit determines that temperature rise suppression is necessary.

Control of driving element

A reading unit, which reads images, reads an image of a predetermined pattern that includes a plurality of marks and is printed on a printing medium by executing scanning relative to the printing medium. Image data acquired by this reading is acquired. Reading adjustment values are specified in accordance with displacement amounts of a plurality of regions with respect to ideal positions. The plurality of regions are formed based on the plurality of patterns included in the acquired image data. Reading processing of a reading mechanism is corrected in accordance with the specified reading adjustment values.

Image processing apparatus, image processing method and storage medium storing program

An apparatus for moving a unit to execute scanning includes a scanning unit including a motor, an encoder for outputting a signal according to movement of the unit, a detection unit for detecting a current supplied to the motor, a speed control unit for executing a speed control of the motor according to the signal output from the encoder and the current detected by the detection unit, a movement control unit for setting a threshold value, moving the unit by driving the motor, by using the speed control unit, and a current control unit for setting a value greater than the predetermined value according to the threshold value and value of the current detected by the detection unit at a predetermined timing during a time period while the unit is moving.

Apparatus and method for controlling the apparatus

An image processing apparatus includes a recording control unit for recording, by a recording head, a recording position adjustment chart including a pattern for adjusting a recording position of the recording head discharging ink and a mark formed in a position different from that of the pattern, a reading unit for reading the recording position adjustment chart as image data, a first detection unit for detecting a position and inclination of the recording position adjustment chart when reading the recording position adjustment chart based on the mark, a second detection unit for detecting the position of the pattern based on the position and the inclination detected by the first detection unit, and a determination unit for determining adjustment values for the recording position adjustment based on the image data of the recording position adjustment chart in which the position of the pattern has been detected by the second detection unit.

Image processing apparatus, image processing system, and image processing method

A faulty discharge detection technique to detect faulty discharge of nozzles in an ink jet recording apparatus includes recording a test pattern onto a recording medium so as to include at least two or more reference marks in the width direction of the recording medium, reading the test pattern by a scanner unit, determining whether or not there is a faulty discharge image from image data read in the test pattern reading, and calculating faulty discharge nozzle position to, in the event that there is a faulty discharge image in the image data, detect the reference marks and detect the position of nozzles in a faulty discharge state from the position of the faulty discharge image in the image data.

Ink jet recording apparatus and method for detecting faulty discharge in ink jet recording apparatus

The present invention includes a recording control unit configured to record a recording position adjustment chart including a pattern for adjusting a recording position of a recording head for discharging ink, and a determination unit configured to determine an adjustment value for adjusting the recording position based on data of the pattern included in the recording position adjustment chart read as image data, in which the recording position adjustment chart includes a mark for detecting an inclination in reading the recording position adjustment chart.

Apparatus and method for controlling a recording head for recording onto a recording medium

An inkjet printing apparatus is provided that can establish a test pattern detection region according to the printing format, where performing printing by way of a margined printing and a marginless printing is possible. The inkjet printing apparatus detects the position of both ends of the test pattern. In the case of a margined printing, a detection of the ink ejection status is performed with respect to ejection ports that perform printing at a region between both ends of the margined test pattern, and that eject the ink forming the pixels of the margined test pattern. In the case of a marginless printing, a detection of the ink ejection status is performed with respect to ejection ports that perform printing at a region between both ends of the marginless test pattern, and that eject the ink forming the pixels of the marginless test pattern.

Inkjet printing apparatus

Even if an image distortion is generated in an image acquired by reading out a test pattern by a reading device, an analysis region of a pattern for detecting an ejection state of a nozzle is accurately set to determine the ejection state of the nozzle. A control device is provided for controlling the reading device to read out the pattern, and a detecting device is provided to detect a defect of an ejection based upon a distribution state of a density in a pattern in the analysis region. The detecting device corrects a position of the analysis region on the readout image determined based upon an arrangement of each nozzle on a design, corresponding to the distribution state of the density in the pattern in the analysis region.

Inkjet printing apparatus with defective nozzle detection

An image processing apparatus combines a background image, handwritten image, and a standard image. A reference image acquired by increasing the luminance value of the background image and the standard image is printed on a recording sheet. A recording sheet is read after being filled in, and a region whose luminance value is lower than a predetermined threshold value and a region indicated by standard image mask data are extracted. The extracted regions are combined with the background image and printed. In particular, the standard image mask data indicates a region in the standard image which is easily affected by a background color of a paper, so that color adjustment is performed on the region in the extracted image which is indicated by the mask data. As a result, the region in the standard image is prevented from being affected by the background color of the recording sheet in the combined result, and the images can be combined and printed according to the original color of the standard image.

Image processing apparatus and image processing method with editing

An apparatus including a DC motor includes a driven member configured to be driven by the DC motor, and a drive control unit configured to define a plurality of predetermined phases of the DC motor as target stop phases and to cause the DC motor to make at least one rotation to perform preliminary driving that rotates the DC motor to each target stop phase by driving and stopping the DC motor, configured to acquire a difference value between the target stop phase and an actual stop phase for each target stop phase, and configured to drive the DC motor so that the driven member is repeatedly moved and stopped in the operation of the driven member and to perform control so that, based on the difference value acquired by the acquisition unit, electric power is supplied to the DC motor in a phase corresponding to a stop position of the driven member.

Apparatus equipped with motor and driving method for the motor

An image processing apparatus causes a composite image to be printed, on a recording sheet, as an entry area to be written in by a user. The composite image is formed by superimposing a fixed image on a reference image. The image processing apparatus extracts an image of an area having luminance lower than a predetermined threshold value from an image corresponding to the entry area contained in an image obtained by reading the recording sheet having the entry area that is written in, and the image processing apparatus uses mask data for extracting an image of an area corresponding to the fixed image to perform image extraction.

Growing community of inventors

Isehara, Japan

Hideyuki Kido