Abstract:
An image reading device, at a starting time point, starts one mode gain setting processing, which is processing of obtaining a gain set value of a shared amplifier in one of a color mode and a monochrome mode. After the one mode gain setting processing is completed, the image reading device performs an other mode gain setting processing, which is processing of obtaining a gain set value of the shared amplifier in the other mode. In a case where an instruction to perform a reading job in the one mode is received while the other mode gain setting processing is being performed, the image reading device discontinues the other mode gain setting processing and performs the reading job in the one mode.
Abstract:
An image reading device reads an image of an original document and includes a conveyance roller, an image reading section, a first determination section, a second determination section, and a conveyance stopping section. The conveyance roller conveys the original document. The image reading section reads the image of the original document. The first determination section determines whether or not the original document has a punched hole based on the image read by the image reading section. The second determination section determines, upon determination that the original document has the punched hole, whether or not the punched hole is to travel on an edge of the conveyance roller. The conveyance stopping section stops conveyance of the original document upon determination that the punched hole is to travel on the edge of the conveyance roller.
Abstract:
An image reading device includes contact glass, a frame, a light emitting section, a sensor, and a control section. An original document is placed on the contact glass. The flame surrounds the periphery of the contact glass. The light emitting section emits light toward the contact glass and the frame. The sensor detects a first received light amount resulting from first reflected light that has passed through the contact glass and a second received light amount resulting from second reflected light that has been reflected off the frame. The control section compares temporal variation of the first received light amount with temporal variation of the second received light amount. The control section determines whether or not the temporal variation of the first received light amount indicates presence of the original document on the contact glass using the temporal variation of the second received light amount as a reference.
Abstract:
An inkjet recording apparatus includes a recording head, a detection section, and a determination section. The recording head includes nozzles that eject ink onto a recording medium. The detection section detects ejection failure in a nozzle among the nozzles. The determination section determines a direction of the recording medium to be fed to the recording head based on a result of detection by the detection section and an image formed on the recording medium.
Abstract:
An image reading device includes: an operation acceptance section that accepts an operation input from a user; a platen glass; an image reading section; an area determination section that determines, from a difference in input light volume among various points on a whole image acquired through the reading by the image reading section, an image area representing a display screen in the whole image; an analyzing section that retrieves a print target image associated with a data code when the data code exists within the image area of the display screen determined by the area determination section; and an image creating section that creates an image in which the print target image retrieved by the analyzing section is composite into the image area of the display screen in the whole image, the image area being determined by the area determination section.
Abstract:
An image reading device includes: an image reading section configured to read an image of an original document; a document size detecting section configured to use image data acquired by the image reading section with an original cover open to detect a size of the original document in a main scanning direction; and a control section configured to allow the document size detecting section to perform a detection of the size of the original document by lighting a light source of the image reading section at an initial light intensity, subsequently allow the document size detecting section to perform another detection of the size of the original document by lighting the light source at a reduced light intensity, and set, when the same size has been detected in the two detections of the size of the original document, the reduced intensity as a document size detection light intensity.
Abstract:
A suction fan of a sheet feeder sucks in air through a sheet feeding belt to generate flotation air. The suction fan uses the flotation air to attract set sheets by suction. A belt motor rotates a sheet feeding belt and feeds out a sheet of the set sheets. An interval measurer measures a sheet-to-sheet interval when the suction fan is attracting the sheet by suction. Based on an output of the interval measurer, a controller recognizes the sheet-to-sheet interval. Based on the recognized sheet-to-sheet interval, the controller adjusts a flow rate of the flotation air.
Abstract:
An image reading device includes an image reading section, a first white reference member, and a control section. The image reading section reads an original document. The first white reference member is be read by the image reading section and indicates a first white reference. The control section determines whether or not a perforation image is present in the original document image indicative of the original document on a basis of an image density of a first reference image indicative of the first white reference member and an image density of the original document image.
Abstract:
An image forming apparatus includes an image forming device, a sheet transport mechanism, a sheet abnormality detection device, an output tray, an escape tray, a notification device, and a control device. The escape tray is provided separately from the output tray, and receives the sheet, from which abnormality has been detected by the sheet abnormality detection device, and delivered by the sheet transport mechanism. The control device causes the image forming device to again form, on another sheet, a same image formed on a sheet, from which the sheet abnormality has been detected, and delivered to the escape tray, and to continue with the image forming operation on subsequent sheets, and decides, according to a predetermined condition, whether to allow the notification device to announce the sheet abnormality.
Abstract:
An image forming apparatus includes an image forming device, a transport route, a purge transport route, an image forming transport route, a transport roller, and a blowing machine. The image forming device forms an image on a sheet. The transport route extends to a predetermined position. The purge transport route extends to a downstream side in a sheet transport direction, from the predetermined position. The image forming transport route is branched from the purge transport route at the predetermined position, and extends toward the image forming device. The transport roller transports the sheet along the transport route, and along one of the purge transport route and the image forming transport route. The blowing machine delivers the sheet to one of the purge transport route and the image forming transport route, by blowing air to the sheet being transported along the transport route.