Abstract: An image processing apparatus includes a receiver and a correcting unit. The receiver receives a first read value and a second read value. The first read value indicates a result of reading a first color by a reader from a recording medium in which the first color is applied to a first area in which in-plane density unevenness is confirmable within the recording medium. The second read value indicates a result of reading a second color by the reader. The second color is different from the first color and is applied to a second area that is substantially the same as the first area in a superimposed manner. The correcting unit corrects in-plane density unevenness of the second color applied to the first color in the superimposed manner based on the first read value received by the receiver and the second read value received by the receiver.

Abstract: Provided is a method for flattening a laser-based image of a curved book page, which is applicable to a scanning platform and an image acquisition device and a laser generation device fixed above the scanning platform. The flattening method includes the following steps of: opening a book on a horizontally arranged scanning platform, and emitting a laser beam to a curved book page to be scanned, the laser beam forming a plurality of laser lines parallel on the curved book page; acquiring a horizontal image of the curved book page having the parallel laser lines, and acquiring a 2D planar coordinate (x, y) of each pixel on the laser line in the horizontal image; calculating, according a y-coordinate in the 2D planar coordinate, a y-coordinate of an intersection line of the laser beam and the scanning platform, and an intersection angle of the laser beam and the scanning platform, and by means of a tangent function, a height of each pixel on the laser line, i.e.

Abstract: An image reading apparatus includes a first conveyance path, a second conveyance path, an insertion/discharge port, an image reader that reads an image on a medium conveyed along the first conveyance path, and a switch that is located at a first position or a second position, wherein the switch disconnects the first conveyance path from the second conveyance path and connects the insertion/discharge port and the first conveyance path when the switch is located at the first position, and disconnects the insertion/discharge port from the first conveyance path and connects the first conveyance path and the second conveyance path when the switch is located at the second position.

Abstract: An image forming apparatus includes an optical sensor configured to detect reflected light from a detection image formed on the transfer member. The optical sensor includes a light emitting element configured to emit light for irradiating the detection image at a predetermined angle of incidence, a first light receiving element arranged at a position at which diffused reflected light from the detection image is received at a first angle of reflection, and a second light receiving element arranged at a position at which the diffused reflected light from the detection image is received at a second angle of reflection.

Abstract: A sheet conveying apparatus includes first and second drive sources, first and second driving units, each including a respective first or second roller to convey a sheet, an operating unit, and a switching unit to switch a state of the sheet conveying apparatus between a first state in which the first driving unit and the second driving unit are not connected to each other and a second state in which the first driving unit and the second driving unit are connected to each other. A first drive source driving force drives the first driving unit. A second drive source driving force drives the second driving unit. The operating unit rotates when manually operated. In the second state, operating unit rotation is transmitted to the first driving unit to rotate the first roller, and operating unit rotation is transmitted to the second driving unit to rotate the second roller.

Abstract: An image reading apparatus includes: a main body extending in a widthwise direction and a depth direction; an image reader provided on an upper portion of the main body and extending in the widthwise direction and the depth direction; and an operation panel provided adjacent to one edge of the image reader which extends in the depth direction. The operation panel is provided at a front end portion of the main body. The operation panel is shorter than the image reader in the depth direction. A connector to which a connecting cable is connected is provided at a back surface of the operation panel located on an opposite side of the operation panel from the front end portion. At least a space is defined at the upper portion and extends in the depth direction from the back surface of the operation panel.

Abstract: An image forming system includes a first feeding portion configured to feed a recording sheet, a second feeding portion configured to feed an inserting sheet from one of a plurality of supporting portions, and a controller capable of executing a feed-before-detection mode in which a feeding process of a current recording sheet is started before a detection portion detects whether or not a last preceding inserting sheet is present on a supporting portion selected as a feeding source of an inserting sheet from among the plurality of supporting portions. The controller is configured to start the feeding process of the current recording sheet in the feed-before-detection mode and cause the second supporting portion to feed the last preceding inserting sheet.

Abstract: An image scanning device includes a linear light source to illuminate a linear illumination position of a scan target with light, a lens body, and a sensor. The linear light source includes a light guide, a scatterer, an emitter, a stepped portion, and a light-shielding member. The stepped portion is formed, from the end surface of the transparent body along the main scan direction, on a side of the light guide that is opposite to the illumination position side of the light guide. The light-shielding member covers a portion of the emitter of the light guide, the portion including the end surface of the transparent body, and extends beyond the stepped portion in the main scan direction and has an end portion that is located out of a scan range of the sensor in the main scan direction.

Abstract: An image reading apparatus, including a feed tray, a conveyance guide, a conveyor, a reading sensor, a first housing, a first driving source, a first driving train, a second driving source, and a second driving train, is provided. The first housing accommodates at least the conveyance guide and the conveyor and has a first outer face and a second outer face facing opposite to each other in a widthwise direction. The first driving source and the first driving train are accommodated in the first housing on a side toward the first outer face. The first driving train transmits a driving force from the first driving source to the conveyor. The second driving source and the second driving train are accommodated in the first housing on a side toward the second outer face. The second driving train transmits a driving force from the second driving source to the movable plate.

Abstract: The present disclosure discloses methods, systems and scanners for scanning document with varying light intensity. The method includes receiving a bound document positioned on an upper surface of a platen, for scanning, wherein the bound document, when opened for scanning, includes a flat region and a curved region. A distance between the bound document positioned on the platen and a contact image sensor (CIS) is continuously monitored and measured, to detect the curved region. Upon detection, a control command is generated to vary the intensity of the light to be emitted from a light source. Then, light with varying intensity is emitted for illuminating the curved region of the bound document. Thereafter, the light reflected from the bound document is received for capturing an image of the bound document. Finally, a digital version of the bound document is generated without any dark strip or without any distortion.

Abstract: A medium transporting apparatus includes a first medium transport path in which a transport roller pair is provided, a second medium transport path for feeding a medium fed downstream in a medium transport direction from the transport roller pair to an upstream position of the transport roller pair in the first medium transport path, and a medium detection unit for detecting passage of a medium in the first medium transport path, in which a position at which the medium detection unit detects a medium is switched between a transport direction upstream position and a transport direction downstream position of the transport roller pair according to whether or not a medium is transported on the second medium transport path.

Abstract: A sheet reader reads the entire sheet which is transported. Based on the reading, a controller generates region classification image data for distinguishing between a region of the sheet and a region other than the sheet. The controller performs comparison processing in which reference image data that is the region classification image data of a first sheet in a print job and comparison target image data that is the region classification image data for another sheet are compared. The controller determines whether or not a sheet corresponding to the comparison target image data is abnormal.

Abstract: The present disclosure discloses an information exhibiting device and method. The information exhibiting device includes a display component and an information acquisition component that are connected to each other. The information acquisition component is configured to acquire target information. The display component is provided with an information exhibiting interface which may be displayed on the display component after the information exhibiting device is powered on. The information exhibitive interface includes a target information exhibiting region. The display component is configured to exhibit the target information, which is acquired by the information acquisition component, in the target information display region. The information exhibiting device provided by an embodiment of the present disclosure may guarantee that memo information has low probability of getting lost. Thus, a user may be effectively reminded.

Abstract: An image reading apparatus includes: a transporting unit; a reading unit that reads the document that is transported; a detecting unit that is provided upstream of the reading unit in the transporting direction and outputs a detection value that tells a transmittance of the document; and a control unit that clips image data at a document area by comparing values of pixels constituting a read image data generated by the reading unit with a threshold value for division into the document area and a background area; wherein the control unit performs clipping by using a first threshold value if the transmittance told by the detection value is less than a predetermined value, and the control unit performs clipping by using a second threshold value that is less than the first threshold value if the transmittance told by the detection value is not less than the predetermined value.

Abstract: In the image input apparatus of the present invention, a control unit included therein performs control so as to stop an image reading unit in a case where an amount of power stored in a power storage unit becomes less than or equal to a first threshold value, performs control so as to charge the power storage unit with a predetermined amount of power, performs control so as to return the reading unit up to a predetermined return position in a direction opposite to an image reading direction, and after returning the image reading unit up to the predetermined return position, performs control so as to move the image reading unit in the reading direction in a case where an amount of power is larger than a second threshold value and otherwise move the image reading unit in the reading direction after charging the power storage unit with the power.

Abstract: An image processing apparatus includes an scanner, a print engine, and a controller configured to control the scanner to scan images of one or more document sheets, thereby generating scanned image data, generate print data based on the scanned image data, control the print engine to print, on sheets, the images based on the print data, generate first log image data through reducing a data size of image data associated with the scanned image data, determine whether the first log image data includes a particular type of page, and when determining that the first log image data includes the particular type of page, generate second log image data having higher image quality than the first log image data.

Abstract: An optical device includes a light emitting surface, a lens mirror array having an incident surface that transmits light from the light emitting surface and converges the light, an emission surface that emits the light incident through the incident surface, and a plurality of reflecting surfaces that reflect the light incident through the incident surface toward the emission surface, and an image plane where an image of the light emitted through the emission surface is formed. The light emitting surface and the image plane are disposed nonparallel to each other so that an imaginary first plane parallel to the light emitting surface and an imaginary second plane parallel to the image plane intersect at a side of the plurality of reflecting surfaces.

Abstract: An image forming apparatus includes a body, an image forming device configured to form an image on a recording medium and supported by the body, an attachment configured to be removably attached to the body, and a cover configured to be removably attached to the body. The cover is configured to cover the attachment attached to the body. The attachment is configured to switch a state in use of the image forming apparatus by attaching and removing of the attachment to and from the body.

Abstract: An optical scanning device includes plural sets of optical paths, and in each set of optical paths, first and second light beams emitted from the two light sources having an opening angle in the main scanning direction are orthogonal to a deflection axis of a deflector and are deflected and scanned by the same surface of the deflector at different positions deviating from each other in a deflection axis direction. A first imaging optical element gives positive optical power to the deflected light beams to converge the light beams. A focal position exists between the first imaging optical element and a second imaging optical element arranged on the optical paths in front of first and second surfaces to be scanned on two photoconductive drums. A separation distance exists between the light beams.

Abstract: A system is provided for processing documents. In particular, the system is incorporates a feeder for feeding documents to a device for further processing of the documents. For instance, the system finds particular application in the field of document imaging in which a variety of documents of varying sizes and orientation are to be fed to an imaging system, such as a document scanner. The system may provide an input mechanism for easily identifying a characteristic of one of the documents and the system may include features for handling packets of documents.