Abstract: A trimming device includes: a moving unit including a transport unit that transports a booklet which includes one or more sheets and which is folded in half at a center portion of the booklet, with a folded portion of the booklet at a front, a correction unit that corrects a posture of the booklet in response to a leading end of the booklet transported by the transport unit abutting against the correction unit, the correction unit being capable of advancing to an abutting position on a path of the booklet and retracting from the path, and an upper guide unit that extends at least between the transport unit and the correction unit, the upper guide unit that guides an upper surface of the booklet, the moving unit being movable in a transport direction between (i) a predetermined upstream position and (ii) a downstream position downstream of the upstream position in the transport direction; a lower guide unit that guides a lower surface of the booklet transported by the transport unit; and a cutting unit that cu

Abstract: A trimming device includes: a moving unit including a transport unit that transports a booklet which includes one or more sheets and which is folded in half at a center portion of the booklet, with a folded portion of the booklet at a front, a correction unit that corrects a posture of the booklet in response to a leading end of the booklet transported by the transport unit abutting against the correction unit, the correction unit being capable of advancing to an abutting position on a path of the booklet and retracting from the path, and an upper guide unit that extends at least between the transport unit and the correction unit, the upper guide unit that guides an upper surface of the booklet, the moving unit being movable in a transport direction between (i) a predetermined upstream position and (ii) a downstream position downstream of the upstream position in the transport direction; a lower guide unit that guides a lower surface of the booklet transported by the transport unit; and a cutting unit that cu

Abstract: An image reading device includes a transporter transporting a document to a reading position, a first corrector correcting a skew of the document by coming into contact with a leading edge thereof, a radiating unit radiating light to the document, an image-information acquiring unit acquiring image information of the document based on information of light reflected therefrom, a reflector reflecting the radiated light, a leading-edge detector comparing a quantity of light reflected by the reflector with a quantity of light reflected by the document so as to detect the leading edge, a skew-amount calculator calculating a skew amount of the leading edge, and a second corrector correcting a skew of the image information based on the skew amount. The device switches between the skew correction by the first corrector and the skew correction by the second corrector based on document information, the skew amount, or user's selection.

Abstract: An image reading device includes a transporter transporting a document to a reading position, a first corrector correcting a skew of the document by coming into contact with a leading edge thereof, a radiating unit radiating light to the document, an image-information acquiring unit acquiring image information of the document based on information of light reflected therefrom, a reflector reflecting the radiated light, a leading-edge detector comparing a quantity of light reflected by the reflector with a quantity of light reflected by the document so as to detect the leading edge, a skew-amount calculator calculating a skew amount of the leading edge, and a second corrector correcting a skew of the image information based on the skew amount. The device switches between the skew correction by the first corrector and the skew correction by the second corrector based on document information, the skew amount, or user's selection.

Abstract: An image reading device includes a transporter transporting a document to a reading position, a first corrector correcting a skew of the document by coming into contact with a leading edge thereof, a radiating unit radiating light to the document, an image-information acquiring unit acquiring image information of the document based on information of light reflected therefrom, a reflector reflecting the radiated light, a leading-edge detector comparing a quantity of light reflected by the reflector with a quantity of light reflected by the document so as to detect the leading edge, a skew-amount calculator calculating a skew amount of the leading edge, and a second corrector correcting a skew of the image information based on the skew amount. The device switches between the skew correction by the first corrector and the skew correction by the second corrector based on document information, the skew amount, or user's selection.

Abstract: An image reading device includes a transporter transporting a document to a reading position, a first corrector correcting a skew of the document by coming into contact with a leading edge thereof, a radiating unit radiating light to the document, an image-information acquiring unit acquiring image information of the document based on information of light reflected therefrom, a reflector reflecting the radiated light, a leading-edge detector comparing a quantity of light reflected by the reflector with a quantity of light reflected by the document so as to detect the leading edge, a skew-amount calculator calculating a skew amount of the leading edge, and a second corrector correcting a skew of the image information based on the skew amount. The device switches between the skew correction by the first corrector and the skew correction by the second corrector based on document information, the skew amount, or user's selection.

Abstract: An automatic document transport device includes a document stacker that is movable between a stacking position and an open position; a document transport path; a document feed member; a document output section; a document output member disposed downstream of an image reading position, the document output member including upper and lower output members; and a shielding member disposed above a document output slot and between the document output member and the document output section, the shielding member including first and second shielding portions, the first shielding portion extending upward and having a lower end disposed above a region in which the upper and lower output members contact each other, the second shielding portion extending downstream from the lower end of the first shielding portion, the shielding member shielding the upper output member from a space between the document stacker and the document output section.

Abstract: An automatic document transport device includes a document stacker that is movable between a stacking position and an open position; a document transport path; a document feed member; a document output section; a document output member disposed downstream of an image reading position, the document output member including upper and lower output members; and a shielding member disposed above a document output slot and between the document output member and the document output section, the shielding member including first and second shielding portions, the first shielding portion extending upward and having a lower end disposed above a region in which the upper and lower output members contact each other, the second shielding portion extending downstream from the lower end of the first shielding portion, the shielding member shielding the upper output member from a space between the document stacker and the document output section.

Abstract: A replaceable unit includes a feeding roller that feeds a sheet from a sheet accommodation portion that accommodates the sheet; a conveyance roller that conveys the sheet fed by the feeding roller downstream; a first frame body that supports the feeding roller and the conveyance roller so as to be rotatable; and a second frame body that supports the first frame body so as to be movable and is removably mounted at a position at which the feeding roller can touch against the sheet accommodated at the sheet accommodation portion.

Abstract: The sheet transport apparatus comprise a sheet supply tray, a separation roll, a support body and a separation roll accommodation portion. The sheet supply tray has a plurality of sheets. The separation roll separates out the sheets one by one by applying a transport resistance to the sheets transported from the sheet supply tray. The support body rotatably supports the separation roll. The separation roll accommodation portion is formed in a transport path along which the sheets are transported, and it accommodates the separation roll and the support body such that they may be detached from a transport surface side of the transport path.

Abstract: The sheet transport apparatus comprise a sheet supply tray, a separation roll, a support body and a separation roll accommodation portion. The sheet supply tray has a plurality of sheets. The separation roll separates out the sheets one by one by applying a transport resistance to the sheets transported from the sheet supply tray. The support body rotatably supports the separation roll. The separation roll accommodation portion is formed in a transport path along which the sheets are transported, and it accommodates the separation roll and the support body such that they may be detached from a transport surface side of the transport path.

Abstract: A replaceable unit includes a feeding roller that feeds a sheet from a sheet accommodation portion that accommodates the sheet; a conveyance roller that conveys the sheet fed by the feeding roller downstream; a first frame body that supports the feeding roller and the conveyance roller so as to be rotatable; and a second frame body that supports the first frame body so as to be movable and is removably mounted at a position at which the feeding roller can touch against the sheet accommodated at the sheet accommodation portion.

Abstract: A reading scan controlling unit drives a scanning motor in accordance with a signal from a reading instructing unit and a line synchronous generating unit for scanning a document plural times in a slow-scanning direction, as well as controls a sensor driver to read a document image. At this time, an optical flat plate driving unit is controlled in the second and following scans to incline an optical flat plate provided in an imaging optical path at a predetermined angle in a fast-scanning direction, so that the imaging position on a CCD sensor in a fast-scanning direction is slightly changed. Further, the scanning speed is determined in accordance with the scanning times. An image reading device having such a construction can perform high-speed reading with high precision by using an image shift method.