Abstract: A paper processing device including: a first cutting unit that cuts a transported continuous paper along a transporting direction of the continuous paper to change a width of the continuous paper; a second cutting unit that cuts continuous papers, which are formed by cutting with the first cutting unit, along a width direction of the cut continuous papers to cut the continuous papers into papers of a desired size, the second cutting unit including plural second cutting members disposed along the width direction of the cut continuous papers, and plural driving units that respectively drive the second cutting members are provided.

Abstract: A paper processing device including: a first cutting unit that cuts a transported continuous paper along a transporting direction of the continuous paper to change a width of the continuous paper; a second cutting unit that cuts continuous papers, which are formed by cutting with the first cutting unit, along a width direction of the cut continuous papers to cut the continuous papers into papers of a desired size, the second cutting unit including plural second cutting members disposed along the width direction of the cut continuous papers, and plural driving units that respectively drive the second cutting members are provided.

Abstract: A printer performs printing after appropriately correcting irregularities, thin-line patchiness, and isolated pixels. A first image-quality corrector unit detects slanting-line irregularities represented by the black and white pixel data generated through binary processing according to a method other than the error-variance method to thereby perform smoothing processing therefor. A second image-quality corrector unit detects defects such as irregularities and patchiness specific to the binary processing according to the error-variance method to thereby perform smoothing processing therefor. A third image-quality corrector unit detects isolated pixels in gray fields that are specific to the binary processing according to the error-variance method to thereby distribute the isolated pixels to peripheral pixels.

Abstract: A relay apparatus is connected to a host computer through a network and transmits data received from the host computer to a device. A first basic unit and a second basic unit are provided for the relay apparatus. A common network address is set into the first and second basic units. The relay apparatus performs a relay control between the host computer and the device. A common unit makes one of the first and second basic units operative as a present system and monitors its status. When an abnormality is detected during the monitoring operation, the relay apparatus stops the basic unit of the present system and switches it to the operation of the basic unit of a standby system.

Abstract: A printer performs printing after appropriately correcting irregularities, thin-line patchiness, and isolated pixels that are specific to black and white pixel data generated through binary processing (binary coding) according to an error-variance method and that are caused in border areas in line and character portions. A first image-quality corrector unit detects slanting-line irregularities represented by the black and white pixel data generated through binary processing according to a method other than the error-variance method to thereby perform smoothing processing therefor. A second image-quality corrector unit defects such as irregularities and patchiness specific to the binary processing according to the error-variance method to thereby perform smoothing processing therefor. A third image-quality corrector unit detects isolated pixels in gray fields that are specific to the binary processing according to the error-variance method to thereby distribute the isolated pixels to peripheral pixels.

Abstract: The invention provides a paper supply apparatus for an image reading apparatus, an image reading apparatus with a paper supply apparatus and a paper supply apparatus which can be used suitably with an image scanner wherein a large amount of paper sheets can be taken out one by one with certainty and read successively and rapidly. The paper supply apparatus successively supplies paper sheets accommodated therein to a paper transport mechanism along which an optical image reading mechanism is disposed, and comprises a paper supply hopper, a paper supply roller located above the paper supply hopper for forwarding the paper sheets accommodated in the paper supply hopper, a paper supply roller driving mechanism for rotating the paper supply roller, and a paper separation mechanism for preventing two or more paper sheets forwarded by the paper supply roller from being sent to the paper transport mechanism.

Abstract: A transmission-type sensor and a reflection-type sensor are provided for detecting paper at the same position of a transfer path, and a sensor mode used according to kinds, printed conditions, and the like of the paper is selected. A transmission-type sensor processing unit and a reflection-type sensor processing unit are provided according to the transmission-type sensor and reflection-type sensor. The paper pass detection unit detects presence of paper, and decides presence of double-feed for the second and later sheets of paper based on detection information of the first sheet of paper.

Abstract: An image reading apparatus including a backing member arranged on the original transport path, a light source for emitting the light toward the original reading position in the original transport path in the direction of a predetermined incident optical axis, a detector capable of detecting the light reflected at the original reading position in the direction of a predetermined reading optical axis, and an image processing apparatus. The reflection surface of the backing member is configured in such a manner that the amount of the light reflected by the backing member and detected by the detector is not less than the amount of the light corresponding to a white reference value and that the amount of the light passing through the original, reflected by the backing member, re-passing through the original and detected by the detector, is not more than the amount of the light capable of preventing the imaging from the reverse side.

Abstract: An improved image reading apparatus suitable for use with an image scanner which can read a large number of paper sheets successively and rapidly and cope with various paper sizes from a small size to a large size. The image reading apparatus includes a paper supply mechanism, a paper transport mechanism, an optical image reading mechanism for optically reading information on a paper sheet being transported by the paper transport mechanism, and a paper stacking mechanism.

Abstract: A document reading apparatus used in a printer or a facsimile. The apparatus includes a document reading confirmation mechanism for printing a character or mark on a document to allow confirmation of whether the document has been read by the document reading apparatus or not. The confirmation mechanism includes a movable guide plate and an auxiliary guide slidably engaged with and cooperating with the movable guide plate to provide together a guide surface for the entire surface of the document at all times when the movable guide plate is placed at any position. A printing head is mounted to the movable guide plate to record a document reading confirmation mark on the document while it is conveyed.

Abstract: A paper stacking apparatus for an image reading apparatus and an image reading apparatus with a paper stacking apparatus wherein paper sheets can be stacked appropriately to allow a large amount of paper sheets to be read rapidly at a time are disclosed.

Abstract: The invention provides a paper supply apparatus for an image reading apparatus, an image reading apparatus with a paper supply apparatus and a paper supply apparatus which can be used suitably with an image scanner wherein a large amount of paper sheets can be taken out one by one with certainty and read successively and rapidly. The paper supply apparatus successively supplies paper sheets accommodated therein to a paper transport mechanism along which an optical image reading mechanism is disposed, and comprises a paper supply hopper, a paper supply roller located above the paper supply hopper for forwarding the paper sheets accommodated in the paper supply hopper, a paper supply roller driving mechanism for rotating the paper supply roller, and a paper separation mechanism for preventing two or more paper sheets forwarded by the paper supply roller from being sent to the paper transport mechanism.

Abstract: A supply/conveyance mechanism for sheets includes: a hopper section (10) for accommodating a plurality of sheets stacked in layers; conveyer (20, 40) for picking up the sheets one by one or in groups of a predetermined number of sheets from the hopper section and conveying the sheets in an advancing direction along a predetermined passage; two detectors (60) for optically detecting a fore end of the sheet in the process of conveyance; correcting device (24, 25) for correcting a direction of the sheet in accordance with the results of detection of said detectors; and right and left guide plates (12) provided in the hopper section (10) for regulating both sides of stacked sheets. The guide plates (12) are capable of sliding in a horizontal direction perpendicular to the sheet advancing direction.

Abstract: A sheet supply/conveyance mechanism for sheets includes a hopper for accommodating a stack of plural sheets, a conveyer for picking up the sheets from the hopper and conveying the sheets in an advancing direction along a path, two detectors for optically detecting a leading edge of a sheet being conveyed, a correcting device for correcting the horizontal alignment of the sheet in accordance with the detection results of said detectors, and right and left guide plates provided in the hopper for aligning the respective, opposite sides of the stacked sheets. The guide plates are slidable in a horizontal direction perpendicular to the sheet advancing direction. The guide plates are respectively connected with the two detectors, so that the detectors are also slidable in the horizontal direction, together with the respective guide plates.