Abstract: An object of one embodiment of the present invention is to accurately derive an inclination of a line image sensor. One embodiment of the present invention is an image reading apparatus including: a line image sensor in which reading elements for reading an image are arrayed in a predetermined direction; a first derivation unit configured to, based on read data acquired by reading a chart on which a plurality of dot patterns is printed with the line image sensor, derive coordinates of each of the plurality of dot patterns; a second derivation unit configured to derive an inclination angle of the line image sensor based on the coordinates derived by the first derivation unit; and a first calculation unit configured to calculate a first correction value for correcting the inclination of the line image sensor based on the inclination angle derived by the second derivation unit.

Abstract: An image reading device includes linear image sensors that are arranged so that adjacent image sensors include an overlapping region in which portions of reading regions of the adjacent image sensors overlap in a main scanning direction, and a buffer unit for read image data. Image data of each overlapping region are generated by synthesizing first image data obtained by a first linear image sensor and second image data obtained by a second linear sensor, the first linear image sensor and the second linear sensor being adjacent in the main scanning direction. Image data of the predetermined line is generated based on image data in which the image data of each overlapping region are excluded from the image data stored in the buffer unit and the image data of each overlapping region. The processing is repeatedly executed in a sub-scanning direction.

Abstract: An image processing apparatus that performs processes of reducing read data in a main-scanning direction and a sub-scanning direction, wherein the image reading apparatus includes a plurality of line image sensors having a longitudinal direction as the main-scanning direction, the plurality of line image sensors are displaced in the sub-scanning direction, and the image reading apparatus relatively moves the plurality of line image sensors and an original in the sub-scanning direction, wherein the image processing apparatus comprises: a sub-scanning direction processing unit configured to perform reduction processing in the sub-scanning direction; and a main-scanning direction processing unit configured to connect data after the reduction processing is performed by the sub-scanning direction processing unit in the main-scanning direction and reduces the connected data in the main-scanning direction.

Abstract: An image processing apparatus that performs processes of reducing read data in a main-scanning direction and a sub-scanning direction, wherein the image reading apparatus includes a plurality of line image sensors having a longitudinal direction as the main-scanning direction, the plurality of line image sensors are displaced in the sub-scanning direction, and the image reading apparatus relatively moves the plurality of line image sensors and an original in the sub-scanning direction, wherein the image processing apparatus comprises: a sub-scanning direction processing unit configured to perform reduction processing in the sub-scanning direction; and a main-scanning direction processing unit configured to connect data after the reduction processing is performed by the sub-scanning direction processing unit in the main-scanning direction and reduces the connected data in the main-scanning direction.

Abstract: An image processing apparatus comprises a storage unit configured to store image data read by scanning, with a linear sensor including pixels arranged in a main-scanning direction, an original in a sub-scanning direction orthogonal to the main-scanning direction, an acquisition unit configured to acquire inclination information indicating inclination of the image data; and a readout unit configured to read out the image data from the storage unit, with shifting, in accordance with the inclination information, a line position in the sub-scanning direction by each predetermined number of pixels in the main-scanning direction, wherein the readout unit reads out the image data from the storage unit, based on the inclination information, differentiating the predetermined number of pixels between an edge in the main-scanning direction and other parts.

Abstract: An image reading device includes linear image sensors that are arranged so that adjacent image sensors include an overlapping region in which portions of reading regions of the adjacent image sensors overlap in a main scanning direction, and a buffer unit for read image data. Image data of each overlapping region are generated by synthesizing first image data obtained by a first linear image sensor and second image data obtained by a second linear sensor, the first linear image sensor and the second linear sensor being adjacent in the main scanning direction. Image data of the predetermined line is generated based on image data in which the image data of each overlapping region are excluded from the image data stored in the buffer unit and the image data of each overlapping region. The processing is repeatedly executed in a sub-scanning direction.

Abstract: In filter processing, a filter coefficient for which a weighting has been set is used for each of a plurality of pixels in a sub-scanning direction in a predetermined section of a main-scanning direction and the weighting for each of the plurality of pixels is determined such that a center of gravity of the weighting shifts in the main-scanning direction gradually from one end of the predetermined section to the other end.

Abstract: A paper conveying device, used in a paper processing device to perform predetermined processing on paper, includes a conveying portion, a holding portion, a detection portion, and a control portion. The conveying portion conveys, in a conveying direction, the paper to a processing portion of the paper processing device. The holding portion is disposed downstream of the processing portion in the conveying direction and holds the paper processed by the paper processing device. The detection portion detects a change of an orientation of the paper held by the holding portion. The control portion releases the paper held by the holding portion in a case where an amount of the detected orientation change reaches a predetermined amount.

Abstract: An object of one embodiment of the present invention is to accurately derive an inclination of a line image sensor. One embodiment of the present invention is an image reading apparatus including: a line image sensor in which reading elements for reading an image are arrayed in a predetermined direction; a first derivation unit configured to, based on read data acquired by reading a chart on which a plurality of dot patterns is printed with the line image sensor, derive coordinates of each of the plurality of dot patterns; a second derivation unit configured to derive an inclination angle of the line image sensor based on the coordinates derived by the first derivation unit; and a first calculation unit configured to calculate a first correction value for correcting the inclination of the line image sensor based on the inclination angle derived by the second derivation unit.

Abstract: An object of one embodiment of the present invention is to accurately derive an inclination of a line image sensor. One embodiment of the present invention is an image reading apparatus including: a line image sensor in which reading elements for reading an image are arrayed in a predetermined direction; a first derivation unit configured to, based on read data acquired by reading a chart on which a plurality of dot patterns is printed with the line image sensor, derive coordinates of each of the plurality of dot patterns; a second derivation unit configured to derive an inclination angle of the line image sensor based on the coordinates derived by the first derivation unit; and a first calculation unit configured to calculate a first correction value for correcting the inclination of the line image sensor based on the inclination angle derived by the second derivation unit.

Abstract: A paper conveying device, used in a paper processing device to perform predetermined processing on paper, includes a conveying portion, a holding portion, a detection portion, and a control portion. The conveying portion conveys, in a conveying direction, the paper to a processing portion of the paper processing device. The holding portion is disposed downstream of the processing portion in the conveying direction and holds the paper processed by the paper processing device. The detection portion detects a change of an orientation of the paper held by the holding portion. The control portion releases the paper held by the holding portion in a case where an amount of the detected orientation change reaches a predetermined amount.

Abstract: An object of one embodiment of the present invention is to accurately derive an inclination of a line image sensor. One embodiment of the present invention is an image reading apparatus including: a line image sensor in which reading elements for reading an image are arrayed in a predetermined direction; a first derivation unit configured to, based on read data acquired by reading a chart on which a plurality of dot patterns is printed with the line image sensor, derive coordinates of each of the plurality of dot patterns; a second derivation unit configured to derive an inclination angle of the line image sensor based on the coordinates derived by the first derivation unit; and a first calculation unit configured to calculate a first correction value for correcting the inclination of the line image sensor based on the inclination angle derived by the second derivation unit.

Abstract: Generation of rules for extracting points that can provide meaningful information relating to time-series data in trading of trading objects whose value changes, such as rules for extracting the timing of a trade, would be assisted. An assistance system in one embodiment of the present invention is a system for generating a rule for a computer to extract a time point included in time-series data, including: a memory storing instructions; and a processing device coupled to the memory, configured to execute the instructions to: store a plurality of determination conditions which are used for determining whether or not to extract the time point; extract, based on information input from a user, at least two determination conditions from the determination conditions stored in the storage means, and generating the rule composed of combination of the extracted determination conditions; and output information regarding the generated rule.

Abstract: A printer multifunction system includes a printer having a printer controller and a scanner having a scanner controller and a memory configured to store data obtained by reading a print original by a sensor. The printer and the scanner are connected to a network to which a computer is connected, wherein the scanner controller determines whether to transmit the data stored in the memory to the printer or the computer, based on at least one of a state of the printer, a reading setting of the scanner, and a state of the memory, and causes the scanner to transmit the data stored in the memory to a destination determined by the scanner controller. The printer controller receives the data from the scanner in a case where the data is transmitted to the printer, and receives the data from the computer in a case where the data is transmitted to the computer from the scanner, and the printer controller causes the printer to execute a printing operation, based on the data.

Abstract: A printer multifunction system including a printer, a scanner, and a computer connected to a network, includes: a determination unit configured to determine whether to transmit data obtained by the reading of the scanner to any one of the printer and the computer on the basis of at least one of a state of the printer, a reading setting of the scanner, and a state of a memory storing the data; a control unit configured to read an original by the scanner and transmit data obtained by reading the original to a destination determined by the determination unit; and a printing execution unit configured to execute a printing operation by the printer on the basis of the data which is transmitted from the scanner by the control unit or the data which is transmitted to the computer, is temporarily stored in the computer, and is transmitted from the computer by the control unit.

Abstract: This invention is made to solve a problem that the power supply cannot be used efficiently because, even when the normally operable ambient temperature of an apparatus is low, the supplied power of the power supply is restricted in consideration of a case in which the ambient temperature is high. To solve this, a temperature sensor measures the temperature of a predetermined portion of a printing apparatus or an ambient temperature. The driving count of printing elements used to print in a region by one scan is compared with a threshold determined in accordance with the measured temperature, and an appropriate printing mode is selected. When the ambient temperature of the printing apparatus is low, a large power can be supplied to the printhead, increasing the efficiency of the power supply.

Abstract: An inkjet printing apparatus is provided that reduces a period required for detection of the ink ejection state for the individual ejection ports of a print head. The inkjet printing apparatus includes a carriage moving unit for moving a carriage in the main scan direction that crosses a conveyance direction in which a printing medium is to be conveyed. The inkjet printing apparatus also includes an LED and a photodiode, for receiving light emitted by the LED, both of which are employed to detect the ink ejection state for the ejection ports to be examined. The inkjet printing apparatus moves the LED and the photodiode in the main scan direction to move the inspection position, at which the ink ejection state is to be examined.

Abstract: This invention is made to solve a problem that the power supply cannot be used efficiently because, even when the normally operable ambient temperature of an apparatus is low, the supplied power of the power supply is restricted in consideration of a case in which the ambient temperature is high. To solve this, a temperature sensor measures the temperature of a predetermined portion of a printing apparatus or an ambient temperature. The driving count of printing elements used to print in a region by one scan is compared with a threshold determined in accordance with the measured temperature, and an appropriate printing mode is selected. When the ambient temperature of the printing apparatus is low, a large power can be supplied to the printhead, increasing the efficiency of the power supply.

Abstract: Provided are a method of precisely evaluating the performance of an optical sensor including light-emitting elements corresponding to light-emitting wavelengths respectively representing multiple colors as well as a light-receiving element even under a condition in which mists of color inks adhere to the sensor, and a printing apparatus for carrying out the method. To this end, how much the performance of the optical sensor mounted on a carriage decreases is evaluated based on a cumulative number of ejections for each ink color, which number corresponds to the amount of mist, and a degree at which each ink affects each color LED. This makes it possible to precisely evaluate the performance of the optical sensor including the light-emitting elements corresponding to the light-emitting wavelengths respectively representing the multiple colors as well as the light-receiving element even under the condition in which the mists of the color inks adhere to the sensor.

Abstract: At least one exemplary embodiment is directed to a recording apparatus, which includes a sensor having a plurality of light-emitting elements and a plurality of light-receiving elements. The sensor can be configured to perform a detection operation. The detection operation includes at least two of an operation for detecting an edge of a recording medium, an operation for detecting a distance between a recording head and the recording medium, an operation for detecting the density of an image formed on the recording medium, and an operation for detecting the kind of the recording medium.