Abstract: A sensor control apparatus includes a control unit, a plurality of sensors connected in series to the control unit. Each of the plurality of sensors includes a detector configured to perform a detection operation based on a first voltage applied from the control unit, a first switch provided on an application path for applying a voltage, a second switch provided on a supply path for supplying the voltage applied from the control unit to a sensor connected in a subsequent stage, and a conduction control unit. The control unit brings the first switch into conduction and cut off the second switch in a case where the voltage on the application path is the first voltage, and cuts off the first switch and bring the second switch into conduction in a case where the voltage on the application path is a second voltage.

Abstract: An image forming system that is capable of causing an image forming apparatus to suitably carry out communication using a mobile communication system, the image forming system including an image processing apparatus and an image forming apparatus. Control information used to carry out an image forming process in which an image is formed on a sheet based on image data generated by an image processing apparatus is output from first and second millimeter wave communication interfaces of the image processing apparatus. The output control information is received by third and fourth millimeter wave communication interfaces of the image forming apparatus. Response information that is a response to the control information is output from the third and fourth millimeter wave communication interfaces and sent to the image processing apparatus.

Abstract: A light-emitting diode (LED) is made brighter when the turning-on is controlled by a central processing unit (CPU) than when the turning-on is controlled by a local area network (LAN) controller.

Abstract: A LAN controller performs lighting control upon LEDs, which are configured to be subjected to lighting control by the LAN controller, on the basis of the start-up status of an apparatus after communicating with an external apparatus.

Abstract: An image forming system that is capable of causing an image forming apparatus to suitably carry out communication using a mobile communication system, the image forming system including an image processing apparatus and an image forming apparatus. Control information used to carry out an image forming process in which an image is formed on a sheet based on image data generated by an image processing apparatus is output from first and second millimeter wave communication interfaces of the image processing apparatus. The output control information is received by third and fourth millimeter wave communication interfaces of the image forming apparatus. Response information that is a response to the control information is output from the third and fourth millimeter wave communication interfaces and sent to the image processing apparatus.

Abstract: There is provided an image reading apparatus including a reading unit configured to sequentially read respective pages of a target original consisting of a plurality of pages to generate read images, and a determining unit configured to determine whether there is a missing page in the read images. The determining unit is configured to determine whether there is a missing page in the read images by applying, to a learned model, determination data based on a pair of consecutively-generated read images of the target original. The learned model is a model that has been derived through machine teaming using input data based on image pairs of consecutive pages and image pairs of non-consecutive pages of the original for learning, and training data that indicates whether each image pair is a pair of consecutive pages.

Abstract: A light emitting diode (LED) which is turned ON by a local area network (LAN) controller, is controlled to be turned ON by a central processing unit (CPU), which executes a program, in accordance with an execution status of the program.

Abstract: There is provided an image reading apparatus including a reading unit configured to sequentially read respective pages of a target original consisting of a plurality of pages to generate read images, and a determining unit configured to determine whether there is a missing page in the read images. The determining unit is configured to determine whether there is a missing page in the read images by applying, to a learned model, determination data based on a pair of consecutively-generated read images of the target original. The learned model is a model that has been derived through machine teaming using input data based on image pairs of consecutive pages and image pairs of non-consecutive pages of the original for learning, and training data that indicates whether each image pair is a pair of consecutive pages.

Abstract: A LAN controller performs lighting control upon LEDs, which are configured to be subjected to lighting control by the LAN controller, on the basis of the start-up status of an apparatus after communicating with an external apparatus.

Abstract: A light-emitting diode (LED) is made brighter when the turning-on is controlled by a central processing unit (CPU) than when the turning-on is controlled by a local area network (LAN) controller.

Abstract: A light emitting diode (LED) which is turned ON by a local area network (LAN) controller, is controlled to be turned ON by a central processing unit (CPU), which executes a program, in accordance with an execution status of the program.

Abstract: A conveyance apparatus is capable of detecting the presence or absence of multi feeding with high accuracy even when a received waveform varies due to a “noise from the circuit” and an “influence due to vibrations,” which are fixedly generated noise components. The conveyance apparatus includes an original conveying motor configured to convey an original; an ultrasonic transmitter, which is arranged at one of positions sandwiching a conveyance path along which the original is conveyed, and transmits an ultrasonic wave toward the conveyance path; and an ultrasonic receiver, which is arranged at the other one of the positions sandwiching the conveyance path, and receives the ultrasonic wave transmitted from the ultrasonic transmitter. The conveyance apparatus compares a received wave amplitude exhibited with sheet-presence against a threshold value determined based on a received wave amplitude exhibited with sheet-absence to determine whether the original is conveyed with multi feeding.

Abstract: A sensor control apparatus includes a control unit, a plurality of sensors connected in series to the control unit. Each of the plurality of sensors includes a detector configured to perform a detection operation based on a first voltage applied from the control unit, a first switch provided on an application path for applying a voltage, a second switch provided on a supply path for supplying the voltage applied from the control unit to a sensor connected in a subsequent stage, and a conduction control unit. The control unit brings the first switch into conduction and cut off the second switch in a case where the voltage on the application path is the first voltage, and cuts off the first switch and bring the second switch into conduction in a case where the voltage on the application path is a second voltage.

Abstract: Provided is a conveyance apparatus capable of detecting the presence or absence of multi feeding with high accuracy even when a received waveform varies due to a “noise from the circuit” and an “influence due to vibrations” being fixedly generated noise components. The conveyance apparatus includes: an original conveying motor configured to convey an original; an ultrasonic transmitter, which is arranged at one of positions sandwiching a conveyance path along which the original is conveyed, and transmits an ultrasonic wave toward the conveyance path; and an ultrasonic receiver, which is arranged at the other one of the positions sandwiching the conveyance path, and receives the ultrasonic wave transmitted from the ultrasonic transmitter. The conveyance apparatus compares a received wave amplitude exhibited with sheet-presence against a threshold value determined based on a received wave amplitude exhibited with sheet-absence to determine whether the original is conveyed by the multi feeding.

Abstract: A transmitter transmits ultrasound to the conveyance path. A receiver receives the ultrasound. A double-feed detector detects whether or not double-feed of a plurality of sheets has occurred. A controller causes the transmitter to transmit ultrasound at a first burst interval when determining the threshold value, and causes the transmitter to transmit ultrasound at a second burst interval, which is shorter than the first burst interval, when detecting the double-feed of sheets. A double-feed detector determines a threshold value that enables distinction between double-feed and single-feed.

Abstract: A transmitter transmits ultrasound to the conveyance path. A receiver receives the ultrasound. A double-feed detector detects whether or not double-feed of a plurality of sheets has occurred. A controller causes the transmitter to transmit ultrasound at a first burst interval when determining the threshold value, and causes the transmitter to transmit ultrasound at a second burst interval, which is shorter than the first burst interval, when detecting the double-feed of sheets. A double-feed detector determines a threshold value that enables distinction between double-feed and single-feed.

Abstract: A document reading apparatus, including: a conveyance portion which conveys a document; an illuminator which illuminates the conveying document; a reading portion which reads the conveying document at a read position; a reference member arranged opposite to the read position; a correction condition calculating portion which calculates a correction condition corresponding to each of a plurality of pixel positions based on image data obtained by the reading portion reading the reference member; and a correction portion which corrects image data of the document using the correction condition, wherein the correction condition calculating portion obtains a plurality of image data of the reference member corresponding to a first pixel position and its peripheral pixel position, and calculates a correction condition at the first pixel position based on remaining image data after excluding high brightness image data and low brightness image data.

Abstract: A document reading apparatus, including: a conveyance portion which conveys a document; an illuminator which illuminates the conveying document; a reading portion which reads the conveying document at a read position; a reference member arranged opposite to the read position; a correction condition calculating portion which calculates a correction condition corresponding to each of a plurality of pixel positions based on image data obtained by the reading portion reading the reference member; and a correction portion which corrects image data of the document using the correction condition, wherein the correction condition calculating portion obtains a plurality of image data of the reference member corresponding to a first pixel position and its peripheral pixel position, and calculates a correction condition at the first pixel position based on remaining image data after excluding high brightness image data and low brightness image data.

Abstract: When an auto document feeder feeds an original to an original image reading platen, a CCD line sensor reads the original along the main scanning direction perpendicular to the feeding direction of the original. A string detection circuit detects a streak parallel to the feeding direction in the image. A string correction circuit corrects the detected streak. In particular, for a predetermined number of sub-scanning positions that are located in the same main scanning position as the main scanning position at which the streak has been detected by the string detection circuit and that exist subsequent to the sub-scanning position at which the streak has been detected, correction is performed by the string correction circuit even when no streak is detected by the string detection circuit.

Abstract: An image pickup apparatus includes the following units. An image pickup unit captures an image and outputs an analog image signal. A conversion unit converts the analog image signal into a digital image signal. A synchronization signal generation unit generates a synchronization signal to be supplied to the image pickup unit and the conversion unit, and supplies the synchronization signal to the image pickup unit. An adjustment unit adjusts the timing at which the synchronization signal generated by the synchronization signal generation unit is supplied to the conversion unit, and supplies the synchronization signal to the conversion unit. The adjustment unit is disposed in a position such that the adjustment unit is affected by the self-heating of the image pickup unit.