Abstract: A roller module is adapted for use with an automatic document feeder, and is adapted for feeding of a document sheet therethrough. The roller module comprises a first roller, a second roller disposed adjacent to and parallel to the first roller and cooperating with the first roller to define a nip, a driven component co-rotatable with the first roller, and a driving component rotatable for abutting against and driving the driven component to rotate, thereby permitting feeding of the document sheet through the nip. During rotation of the driving component, the document sheet is brought into contact with the first and second rollers for a predetermined time period to perform skew correction before the driving component rotates the driven component.

Abstract: A duplex automatic document feeder includes first, second, third, and fourth paths, an ejecting path, a scanning module, first and second reversing roller units, a feeding tray, and an ejecting tray. A document is moved from the feeding tray to the scanning module for scanning of a first side surface thereof. Subsequently, the document is moved along a second-side scanning path defined by the first reversing roller unit, the third path, a portion of the first path, the fourth path, and the first reversing roller unit to allow for scanning of a second side surface thereof. After the first and second side surfaces are scanned, the document is moved along a document-inverting path defined by the second reversing roller unit, a portion of the fourth path, the ejecting path, a portion of the second path, the first reversing roller unit, and the ejecting tray.

Abstract: A handheld recording apparatus. A casing includes a first sidewall and a second sidewall opposite thereto. The second sidewall includes a recording through hole. A transparent positioning window is disposed in the first sidewall and corresponds to the recording through hole. A recording mechanism is movably disposed in the casing and records information via the recording through hole. A drive mechanism is disposed in the casing and is connected to the recording mechanism, moving the recording mechanism.

Abstract: A duplex automatic document feeder includes first, second, third, and fourth paths, an ejecting path, a scanning module, first and second reversing roller units, a feeding tray, and an ejecting tray. A document is moved from the feeding tray to the scanning module for scanning of a first side surface thereof. Subsequently, the document is moved along a second-side scanning path defined by the first reversing roller unit, the third path, a portion of the first path, the fourth path, and the first reversing roller unit to allow for scanning of a second side surface thereof. After the first and second side surfaces are scanned, the document is moved along a document-inverting path defined by the second reversing roller unit, a portion of the fourth path, the ejecting path, a portion of the second path, the first reversing roller unit, and the ejecting tray.

Abstract: A duplex automatic document feeder includes first, second, third, and fourth paths, an ejecting path, a scanning module, first and second reversing roller units, a feeding tray, and an ejecting tray. A document is moved from the feeding tray to the scanning module for scanning of a first side surface thereof. Subsequently, the document is moved along a second-side scanning path defined by the first reversing roller unit, the third path, a portion of the first path, the fourth path, and the first reversing roller unit to allow for scanning of a second side surface thereof. After the first and second side surfaces are scanned, the document is moved along a document-inverting path defined by the second reversing roller unit, a portion of the fourth path, the ejecting path, a portion of the second path, the first reversing roller unit, and the ejecting tray.

Abstract: A scanner includes a housing, a transparent platen disposed on the housing for positioning a document, and a calibration pattern formed on a side of the transparent platen. The calibration pattern includes an arc having a first point and a second point. The scanner further includes an optical engine installed inside the housing for scanning the document and the calibration pattern with movement in a first direction, and a control module installed inside the housing for controlling the optical engine to move to a scan start position according to the first point and the second point of the calibration pattern scanned by the optical engine and a radius of curvature of the arc.

Abstract: A de-skew mechanism, in an image forming device, with a correcting member disposed in a rotatable manner to the rotary shaft and turning with driving roller by a spring between them. A torque spring suppresses the turning of the correcting member to correct the skew of the medium. When conveyed, the medium will butt against the correcting member to be stopped and corrected. The medium conveying force and the force that the spring brings to the driving roller are sufficient for turning the correcting member and passing therethrough. At one time, the force that the correcting member brings to the medium will reduce to zero. As such, the medium will not be damaged by the correcting member while being conveyed.

Abstract: A roller module is adapted for use with an automatic document feeder, and is adapted for feeding of a document sheet therethrough. The roller module comprises a first roller, a second roller disposed adjacent to and parallel to the first roller and cooperating with the first roller to define a nip, a driven component co-rotatable with the first roller, and a driving component rotatable for abutting against and driving the driven component to rotate, thereby permitting feeding of the document sheet through the nip. During rotation of the driving component, the document sheet is brought into contact with the first and second rollers for a predetermined time period to perform skew correction before the driving component rotates the driven component.

Abstract: An automatic document feeder includes first, second, third, and fourth paths for guiding movement of a document. The document is fed through the first path and a scanning module so as to allow for scanning of a first side surface of the document. Thereafter, a switching gate is pivoted to a first position so as to allow the document to be moved from a front section of the second path onto a roller unit via the fourth path and a rear section of the third path. The rotational direction of the middle roller is changed in response to movement of the document onto the roller unit so as to allow the document to be moved onto the first path via the third path, thereby allowing for a subsequent scanning operation on a second side surface of the document. The automatic document feeder further includes a document-inverting path such that documents are automatically arranged according to paper number.

Abstract: A paper feeding mechanism for carrying a paper passing through a scanning station having a scanning module includes a partition, a paper transporting device, and a switching member movably disposed corresponding to one end of the partition. A first paper feeding channel is formed between the partition and the scanning station, and a second paper feeding channel is formed on another side of the partition. The paper transporting device carries the paper passing over the side of the partition through the first paper feeding channel with a first page of the paper facing the scanning module. Then, the paper is flipped for a second page of the paper facing the scanning module. The switching member can be selectively moved for guiding the paper passing through the first paper feeding channel or the second paper feeding channel.

Abstract: A paper pressing device for a scanning apparatus is provided, which include a scanning module and a paper track corresponding to the scanning module, wherein the paper track is provided for a paper sheet passing through. The paper pressing device includes a film and a pressing block. The film is disposed on one side of the paper track opposite to the scanning module. The pressing block is disposed on one side of the film opposite to the scanning module and presses against the film for reducing the height of the paper track above the scanning module. When the paper sheet is passes over the scanning module, the paper pressing device presses the paper sheet for maintaining the paper sheet flat while being scanned.

Abstract: An automatic document feeder includes a first path extending from a feeding tray to a scanning module, a second path extending from the scanning module to a reversing roller unit, and a third path extending from the reversing roller unit to an intermediate portion of the first path. A document is moved from the feeding tray onto the reversing roller unit via the first and second paths for a first scanning. Just before the document is moved through the second path, the reversing roller unit is driven to allow the document to move therethrough. Subsequently, the document is reversed on the reversing roller unit to move through a looped passage defined by the third path, a portion of the first path downstream of the intermediate portion, and the second path for a second scanning. The reversing roller unit is operable to allow two opposite edges of the document to move thereon in different directions.

Abstract: The paper-feeding mechanism includes a duplex drive roller disposed on a terminal end of a feeding path of an image-forming device for feeding paper and on a side of an output tray, a first idle roller for conveying the paper back to the output tray with the duplex drive roller after a single side of the paper is printed, a second idle roller for conveying the paper back to the output tray with the duplex drive roller after double sides of the paper are printed, and a stop means installed between the terminal end of the feeding path and the output tray for switching to a shut position to stop the paper when the paper is driven back to the feeding path and for switching to an open position when the paper is driven to the output tray after the double sides of the paper are printed.

Abstract: A de-skew mechanism includes a driving shaft installed on a frame of an image forming device and driven by a motor, an active roller installed on the driving shaft and driven by the driving shaft, and an idle roller driven by the active roller for driving a medium with the active roller. A nip is formed between the active roller and the idle roller. The de-skew mechanism further includes a correcting member installed on the driving shaft in a rotatable manner and located upstream of the nip for correcting skew of the medium in a correcting position, and a restoring member connected to the correcting member for loading torque to the correcting member so as to drive the connecting member from the correcting position to a releasing position where the medium pass therethrough.

Abstract: A de-skew mechanism, in an image forming device, with a correcting member disposed in a rotatable manner to the rotary shaft and turning with driving roller by a spring between them. A torque spring suppresses the turning of the correcting member to correct the skew of the medium. When conveyed, the medium will butt against the correcting member to be stopped and corrected. The medium conveying force and the force that the spring brings to the driving roller are sufficient for turning the correcting member and passing therethrough. At one time, the force that the correcting member brings to the medium will reduce to zero. As such, the medium will not be damaged by the correcting member while being conveyed.

Abstract: A scanner includes a housing, a transparent platen disposed on the housing for positioning a document, and a calibration pattern formed on a side of the transparent platen. The calibration pattern includes an arc having a first point and a second point. The scanner further includes an optical engine installed inside the housing for scanning the document and the calibration pattern with movement in a first direction, and a control module installed inside the housing for controlling the optical engine to move to a scan start position according to the first point and the second point of the calibration pattern scanned by the optical engine and a radius of curvature of the arc.

Abstract: A duplex automatic document feeder includes first, second, third, and fourth paths, an ejecting path, a scanning module, first and second reversing roller units, a feeding tray, and an ejecting tray. A document is moved from the feeding tray to the scanning module for scanning of a first side surface thereof. Subsequently, the document is moved along a second-side scanning path defined by the first reversing roller unit, the third path, a portion of the first path, the fourth path, and the first reversing roller unit to allow for scanning of a second side surface thereof. After the first and second side surfaces are scanned, the document is moved along a document-inverting path defined by the second reversing roller unit, a portion of the fourth path, the ejecting path, a portion of the second path, the first reversing roller unit, and the ejecting tray.

Abstract: The present invention provides an image processing device including a main body, a cover, and an object feeder. The main body has a space, where a first side of the space is a first opening of the main body, and a second side of the space is a second opening of the main body. The cover is movably coupled to the main body and is capable of moving straight. The object feeder is used for loading at least one object to be processed. When the object feeder is put into the space via the first opening and a portion of a surface of the object sticks out from the main body via the second opening, the cover moves straight to cover at least the portion of the surface.

Abstract: A handheld recording apparatus. A casing includes a first sidewall and a second sidewall opposite thereto. The second sidewall includes a recording through hole. A transparent positioning window is disposed in the first sidewall and corresponds to the recording through hole. A recording mechanism is movably disposed in the casing and records information via the recording through hole. A drive mechanism is disposed in the casing and is connected to the recording mechanism, moving the recording mechanism.

Abstract: An automatic document feeder includes first, second, third, and fourth paths for guiding movement of a document. The document is fed through the first path and a scanning module so as to allow for scanning of a first side surface of the document. Thereafter, a switching gate is pivoted to a first position so as to allow the document to be moved from a front section of the second path onto a roller unit via the fourth path and a rear section of the third path. The rotational direction of the middle roller is changed in response to movement of the document onto the roller unit so as to allow the document to be moved onto the first path via the third path, thereby allowing for a subsequent scanning operation on a second side surface of the document. The automatic document feeder further includes a document-inverting path such that documents are automatically arranged according to paper number.