Abstract: An optical image scanner includes a scan head that is mounted onto a guide member with a bias torque that reduces uncertainty in position of the scan head. A drive member, such as a belt or cable, is attached to the scan head with an offset relative to a centerline of the guide member. A tensioning device ensures that the drive member asserts force on the scan head at each of the attachment points. As a result, a bias torque is placed onto the scan head, relative to the guide member, reducing uncertainty in position. For bidirectional movement, the biasing torque is the same for either direction of travel.

Abstract: An integrated optical imaging assembly for scanning an object may comprise a printed circuit board having an upper end and a lower end. An optical detector is mounted to the upper end of the printed circuit board at an end of an image light path, and a lens system is mounted to the printed circuit board below the optical detector to be interposed in the image light path. A reflector is mounted to the lens in the image light path between the lens and the optical detector to direct the image light path between the lens and the optical detector. An illumination source is mounted to the lower end of the circuit board to illuminate a second end of the image light path below the lens, and an illumination reflector is mounted to the lens opposite the illumination source to direct an illumination light path from the illumination source toward the image light path below the lens.

Abstract: A combined machine for printing and scanning is capable of obtaining a consistent output value from an image pickup device by providing a light source, mounted to a frame, that irradiates a whole line to be scanned or printed. The light source is provided at the rear end of the head assembly which traverses the printing medium or scanning document. The device dries ejected ink in a short time by heat radiated from the light source when performing a printing operation.

Abstract: A compact drive assembly for a hand-held scanner device may comprise a roller mounted for rotation in the hand-held scanner device and a motor having an output shaft. A first worm mounted to the output shaft of the motor engages a first worm gear. A second worm is operatively associated with the first worm gear so that the second worm rotates with the first worm gear. A second worm gear mounted to the roller engages the second worm so that the motor drives the roller via the first worm, the first worm gear, the second worm and the second worm gear. An encoder assembly operatively associated with the second worm provides an indication of the angular position of the second worm. A control system operatively associated with the encoder assembly and the motor operates the motor to drive the roller within a predetermined speed range.

Abstract: A two-line sensor type image input and processing apparatus and method for accurately determining the current scan state, start of scanning and end of scanning events, as well as estimating scanning speed corresponding thereto, and for performing high precision distortion correction on the basis of these estimated scanning speeds.

Abstract: When the sensor block 10 is placed on the roller block 20 and the reading surface of the reading sensor 31 faces the aforementioned driving roller 28, then paper is automatically fed with the driving roller 28 and text and image data are read with the reading sensor 31. On the other hand, when the sensor block 10 is reversed 180.degree. and placed again over the roller block 20, then the reading sensor 31 reads text and images when the sensor block 10, arranged beneath the roller block 20, are moving or the document by manual operation.

Abstract: An optical scanner including a hand-holdable housing including a scanner head for scanning a record medium, a roller engageable with and rotatable by the record medium when scanned by the scanner head, the roller including an optically-sensible marking for use in measuring rotary movements of the roller, a light source illuminating the roller and the marking thereof, an optical sensor for sensing information on the record medium and the marking of the roller, and a control system for periodically energizing the light source during predetermined time periods enabling the optical sensor to sense the marking of the roller during the predetermined time periods, and the information on the record medium during other time periods.

Abstract: A hand-held scanner apparatus may comprise a body and an image head mounted for rotational movement to the body. The rotation of the rotating image head maintains the face of the image head in contact with the document during a scanning operation even though the user may rock or tilt the body of the hand-held scanner during the scanning operation.

Abstract: Optics for a document scanner arc disclosed which permit information on a document to be optically reorganized so they may be input as a single image to the lens of a single charge coupled device camera without the need for moving optics or moving document arrangements to sequentially image portions of the document to the input lens of the camera. The optics are mirrors in a fixed, stationary arrangement with respect to each other, between the camera lens and a document to be read. All the information to be read on the document is reflected between the mirrors and is thereby transposed physically before being input to the lens of the camera as a single image. After the single image input to the camera is scanned and stored the image portions are re-transposed using a computer and software utilizing a transposition algorithm to re-create the information on the document in their proper order.

Abstract: The terminal device with built-in image sensor allows to use a conventional writing tool as the handwritten input means, and facilitates reading of printed document, and incorporates a scanning image sensor composed of a lens member having the optical path disposed parallel to a transparent panel, a prism member for bending the optical path at right angle to match one focal position of the lens member with the surface of the transparent panel, a light source for illuminating the surface of the transparent panel, and a light sensor disposed at other focal position of the lens member, and reads a document placed on the transparent panel, and conventional writing device is provided in the lid unit, and by closing the lid unit after writing character or picture by the writing device, the character or picture is read by the image sensor.

Abstract: A multi-purpose scanner that can be integrated into a computer. In one embodiment, the multi-purpose scanner functions as a desktop scanner. It includes a scanning engine and an external housing. The external housing substantially encapsulates the scanning engine to reduce electromagnetic interference to the scanning engine. In another embodiment, the multi-purpose scanner scans with scanning engine mechanically attached to the computer. The scanning engine includes an internal body, a chassis and a positioning assembly. The chassis holds the internal body, and the assembly moves the internal body relative to the chassis. In this embodiment, the scanner extends a part of the internal body out of the chassis in order to scan a medium. In a third embodiment, the multi-purpose scanner functions as a handheld scanner. The scanning engine includes a front-panel unit that is releasably attached to an engine unit.

Abstract: A handheld device scans single line textual information in the form of internet URL'S, internet protocol addresses, internet e-mail addresses, FTP sites, USENET news group addresses and DNS addresses as they occur in print advertising and printed media. Scanned textual data is processed with OCR technology and displayed for user verification. The device utilizes onboard memory to store information until such time it can be transmitted via wireless communications to a companion software communications agent executing on a personal computer, network computer, PIN computing device or electronic newspaper. The software communications agent utilizes a connection to the internet to retrieve HTML/VRML documents, e-mail messages, USENET news, Java applets, ActiveX documents, or file transfers from the internet location interpreted by the handheld scanner/OCR device.

Abstract: The light source unit (lid), which is substantially a right triangle, is supported to be freely rotatable via the hinge at the bottom of the main body casing. The light source for illumination and the assist roller are arranged in the light source unit. When operating the scanner system, the scanning window is opened by rotating the light source unit. When not operating, the scanning window is closed by rotating the light source unit to the right bottom of the main body casing, and the scanning face is protected. Moreover, the magnets are used to lock and hold the light source unit in the opening state or the closing state. The main power source is turned on when the opening state of the lid is detected by the Hall sensor or the reed switch, and the scanner system becomes operatable.

Abstract: A hand-held optical scanner for reading color images formed on a document. The scanner head is all-optical and contains no electronics. Optical fiber bundles couple the scanner head to a remote opto-electronic module containing a linear or a 2D sensor array for converting optical signals, reflected from the document, to electrical signals for transmission to a computer display, etc. By using side coupling, the transmitted and reflected light for each pixel travels through the same optical fiber without the need for a beam splitter. The optical fibers are used for the functions of image scanning, position encoding, and signaling a computer which assigns each one of incoherently arranged optical fibers to one of the functions.

Abstract: The present invention is directed to a hand-held scanning device in which the scanning device housing window is attached directly to the optical assembly. In this manner, alignment between the window and the optical assembly may be maintained even when the housing is being subjected to stress. The window is also designed to float with respect to at least a portion of the housing, thus allowing the housing to flex without causing movement of the window relative to the optical assembly. A tortuous path seal arrangement may be provided between the window and the housing. The tortuous path seal allows the housing to move relatively to the window, and yet inhibits the entry of dust and other contaminants into the interior of the housing through the space provided between the window and the housing.

Abstract: A document transport for a scanner (100) has a flexible, elongated finger (226) disposed adjacent to a document (134), and a force applied to the finger (226) urges teeth (233) on the finger (226) into contact with the document (134) which urges the document (134) along a path through the scanner (100). A piezoelectric plate (222), which applies the force to the finger (226), requires only a small amount of electrical power. To traverse the scanner (100), a document (134) may also be manually fed along a guide (272). First and second speed-sensing detectors (276a and 276b), disposed along the path traversed by the document (134), permit the scanner (100) to determine a speed at which the manually fed document (134) traverses the scanner (100). To conserve electrical energy, the scanner (100) also includes a document-presence detector (274) for activating the scanner (100) when a document (134) to be scanned is present.

Abstract: An image reader apparatus includes an illuminating element to illuminate a document face to be read, an optical element to form an image of the document face illuminated by the illuminating element, an image sensor to photoelectrically convert the image formed by light passing through the optical element, and a running roller rotating in contact with the document face, wherein a horizontal distance between a document contact portion of the running roller where the running roller contacts the document and a center of imaging of the optical element is shorter than or equal to 10 mm.

Abstract: In a manual scanning type image input apparatus and an image signal processing method, unevenness of scanning is hard to occur due to the simple constitution. A line image sensor reads an image data of prescribed manuscript while implementing electrical main scanning with predetermined driving cycle, before a movement distance encoder detects movement distance in the direction of mechanical auxiliary scanning. A line image data which is read by the line image sensor is distributed to either one of two systems to be stored temporarily in the line memory of the two systems. The line image data which is stored temporarily is read out selectively by a data selector, before being constructed as an image data based on an address of the selected line image data by decoder.

Abstract: A system and method for automated data capture of sequential form numbers at a collator/press assembly machine is provided. The system of the present invention includes an optical reader, a conventional personal computer including generally available spreadsheet software, an optional printer and a standard form collator/press assembly machine.

Abstract: A compact illumination system for illuminating a scan region on an object may comprise a light source for producing a plurality of light rays. A first reflector is positioned adjacent the light source and is coplanar with a first plane that is located in generally parallel, spaced-apart relation to a scan plane. The first reflector directs toward the scan region some of the light rays produced by the light source. A second reflector is positioned adjacent the light source and is coplanar with a second plane that is not parallel to the scan plane. The second reflector directs toward the scan region some of the light rays produced by the light source.

Abstract: This invention discloses a battery-powered scanner that does not require use of commercial power source, wherein the scanner not only selects components of low power consumption but also implements high efficient and low worn switching regulation technique to convert power source supplied by a primary or secondary battery into working voltage for all components within the scanner so as to be utilized by the scanner in operation. To prevent the possibility of insufficient battery power supply, the scanner is provided with a power management device that terminates power supply to peripheral components of the scanner while the scanner in not in operation so as to conserve power consumption, and that activates power supply to all components when the scanner is in operation. The power management device further stops timing pulses other than those required to connect a control device and a computer connected to the scanner so as to reduce power consumption, whereby the scanner may be portable to various locations.

Abstract: The scanning device comprises a measuring table (T) to which measured object B can be fixed for measurement, measurement carriage (W) with a photoelectric scanning device (100) which can be linearly moved over the surface of the measuring table by means of a drive unit (A), a control unit (S) for the measuring carriage (W), the scanning device (100) and the drive unit (A), and a processing unit (C) for processing and analyzing the measuring signals generated by scanning device (100) from scanned pixels (8) of measured object (B). Scanning device (100) in turn comprises a plurality of measuring heads (120) for pixel-by-pixel measurement of a corresponding plurality of pixels (8) of measured object (B) lying in a row one behind the other and along a corresponding plurality of scanning tracks (5a, 5b) which are parallel to motion direction (X) of measuring carriage (W) such that measured object (B) is sequentially scanned, pixel by pixel, in a grid-like scanning pattern.

Abstract: The present invention relates to a method of reconstructing an image from scanned parts of an original image obtained by relative movement between a scanning device and the original image so that adjacent scanned image swaths overlap. The scanning device comprises navigation means for determining the position of the scanning device relative to the original image. Navigation corrections are calculated by correlating features within the area of overlap between adjacent swaths.

Abstract: An imaging device may comprise an image head having an elongate slot therein with first and second lengthwise ends. The image head may also include a first navigation sensor aperture and a second navigation sensor aperture positioned adjacent the elongate slot at positions other than positions that are aligned with the first and second lengthwise ends of the elongate slot. An image sensing system optically aligned with the elongate slot in the image head is responsive to image light passing through the elongate slot and produces an image signal based on the image light. A first navigation sensor optically aligned with the first navigation sensor aperture in the image head is responsive to first navigation light passing through the first navigation sensor aperture and produces a first navigation data signal based on the first navigation light.

Abstract: A small hand-held optical scanning device for the accurate and precise scanning of lines of text characters is described. The scanner does not require any mechanical means of providing tachometer-like or encoder-like scanning signals in order to establish an accurate reproduction of the scanned text. An auxiliary single element detector samples the scanned text at an advanced (retarded) position relative to the main one dimensional scanner of the device. This advanced detector sensor, together with appropriate and disclosed software algorithms, permits the accurate correction of baseline imperfections as well as corrections for scan-speed non-uniformities and basic scan-speed errors. The processed scanner output is sufficiently faithful to the scanned text that optical character recognition (OCR) software can precisely interpret the scanned images and subsequently provide an accurate ASCII representation of the scanned text.

Abstract: The present invention is related to an image scanner including a housing; an optical device installed in the housing for performing photoelectric conversion of an image of a scanned object in response to a scanning light signal; a scan-monitoring device arranged on a surface of the housing for indicating a scanning state of the image scanner in response to an indicating light signal; and a light source installed in the housing for emitting light when the image scanner is powered, with a first portion of the light provided to the optical device as the scanning light signal and a second portion of the light provided to the scan-monitoring device as the indicating light signal. The scan-monitoring device can be easily provided, and owing to the omission of the LED compared to the conventional image scanner, the present invention is more cost-effective.

Abstract: An image sensor head having a CCD is rotatably attached to a card body having a computer interface. A DC/DC converter for supplying the image sensor head with electric power is provided so as to be situated outside and external device, such as a computer, when the card body is loaded in the external device. This facilitates the radiation of heat. A shielding case is provided to cover and shield the DC/DC converter. When the card body experiences deformation, the shielding case contacts a metal cover which covers a main board within the card body, thereby preventing excessive bending and assuring electrical safety. Thus, in a card-type image sensor of the type which introduces an image to a computer or the like, the power supply for image sensing purposes radiates heat more effectively and is provided with improved shielding.

Abstract: A hand-held and self-contained electronic printing apparatus (10) for printing indicia on a medium (M) which includes a housing (12) that can be manually positioned adjacent a surface of the medium (M) and manually swept across a printing area on the medium (M) during a printing sequence. A print head is disposed in the housing (12) which contains a plurality of print elements such as ink jet nozzles for printing indicia in a selectable pattern of dots on the medium (M) within the printing area. The printing apparatus (10) also contains an electronic control circuit disposed in the housing (12) for controlling the print head to print indicia on the medium (M) during a printing sequence wherein the control circuit comprises compensation means for reducing image distortion based on detecting the position of the nozzles during the printing sequence. In one embodiment, the control circuit compensates for image distortion that is the result of sweeping the housing (12) across a non-linear path.

Abstract: When the scanner moves over the subject copy, the first reading elements of a close contact type image sensor (1) read the copy. As the movement causes a platen roller (5) to rotate, an encoder ring (4), having a prescribed distinguishing pattern (10) printed within, rotates. Second reading elements configured outside the copy reading range of the close contact type image sensor (1) read the distinguishing pattern, which moves over the reading face as the encoder ring (4) rotates. The second reading elements which read the distinguishing pattern are driven independently of the first reading elements for reading the subject copy, and their reading period is shorter than that of the first reading elements. This configuration enables the moving speed to be accurately detected even when the scanner moves faster than the copy reading speed.

Abstract: An image forming device includes: a recording unit which prints an image on a recording medium; a memory unit which stores image information for pixels forming the image; a speed detection unit which detects movement speed of the recording unit; a speed comparison unit which compares the movement speed detected by the speed detection unit with a preset reference speed to determine whether the movement speed is faster or slower than the reference speed; and a control unit which controls drive of the recording unit in synchronization with the movement speed detected by the speed detection unit to print the image based on the image information stored in the memory unit and which performs processes so that the recording unit prints the image in a density dependent on whether the speed comparison unit determines that the movement speed is faster or slower than the reference speed.

Abstract: An image scanner having automatic moving function and comprising a contact image sensor (CIS) is disclosed. The image scanner includes an upper base and a lower base, the upper and lower bases are put together during sheet-feeding process, while they are separated during automatic moving process in which only the upper base is utilized, smooth feeding of documents can be assured by using a specially designed sheet-feeding mechanism.

Abstract: Apparatus for scanning an image comprising a manually-operated scanning device with a photoelectric source and having a light tunnel extending from the photoelectric source to a side of the manually-operated scanning device. The scanning device with light tunnels offers high contrast edges and encourages proper alignment of the image being scanned. In one embodiment, the scanning device has a light tunnel extending from each vertical side corresponding to and illuminating the horizontal axis to be scanned. In another embodiment, the scanning device has, in addition to light tunnels illuminating the horizontal axis, light tunnels extending from the front or horizontal side of the scanning device to illuminate the vertical boundary that is scanned by the scanning device. The light tunnels in the invention provide the user with a highly visible reference of exactly where the manually-operated scanning device's scan window is located at a particular instance.

Abstract: The present invention includes a housing for providing space to hold elements of the scanning system, a document holder is used for holding a document, which can be separated from the scanning system. Further, the document holder consists of a first cover and a second cover. One end of the first cover is connected to one end of the second cover via a pair of pins. The document holder can be pivotally opened for feeding the document into the document holder. A plate having an opening is connected to the housing. The opening is used to provide a path for feeding the document holder into the scanning system. An image capture device is set in the scanning system for capturing the image of the document. A pair of tracks respectively are attached on the inner side walls of the housing for holding the document holder. Document holder rejecting means is utilized for rejecting the document holder.

Abstract: A data inputting device for inputting data to a computer, word processor or data image processor is disclosed. The device has a single inputting unit capable of selectively inputting coordinates or an image. Further, the inputting unit is capable of inputting an image on the basis of absolute coordinates representative of positions on a document.

Abstract: A hand-held scanner apparatus may comprise a body having a three axis body coordinate system. An image head is mounted to said body so that the image head may move with respect to at least two axes of the three axis body coordinate system. A bias member connected between the body and the image head biases the image head to a home position and urges the face of the image head against the object during a sweep operation.

Abstract: The compact document imager and display apparatus has a two-dimensional image sensor array, a flat panel display such as a liquid crystal display (LCD), and processing electronics. An illumination source can be added to illuminate the document on the sensor array and to provide backlight for the LCD. Color imaging may be achieved by providing three sequential illumination pulses of appropriate colors. A document is placed in close contact with the sensor array. The document is illuminated and an electronic image is captured and stored in the processing electronics. The captured image can be displayed on the LCD by the processing electronics. The document, such as a single sheet of paper or a transparency, can be illuminated by the room light to perform image capture. The compact document imager can be used as a facsimile machines by providing telephone connections. Documents can be scanned using the sensor array and sent to other devices. Documents can be received from other sources and displayed on the LCD.

Abstract: A hand-held device such as a mouse is provided for inputting into a computer relative positional information during movement of the device over a generally planar surface and for inputting an optical image of an object located thereunder. The device includes a housing adapted to be grasped by a user and moved along the surface. A positional transducer is mounted in the housing for generating first signals representative of the amount of movement of the device over the surface. An area imager is located within the housing for recording an image of an object and for generating second signals representative of the image.

Abstract: An input device including a medium support for supporting a medium; a reading unit for reading an image from the medium and for generating image data accordingly; and a movement mechanism for generating relative movement between the medium support and the reading unit.

Abstract: This invention may be used as a system in which a scanner for reading an original document and a recording apparatus are combined, and aims to provide an image information processing apparatus which facilitates the transportation of the system, and an image information processing system. A printer and a scanner can be mounted to each other by accurate positioning when positioning projections provided in the printer are engaged with positioning holes corresponding to the projections on the scanner side, and this mounting is fixed by the engagement of a hook on the scanner side with a recess on the printer side. In this mounted state, a transport passage, including a paper ejection port, for an original document or printing paper is formed, and motive power and electric power are supplied from the printer side to the scanner side via gears. In this state, an image on the original document is read, or an image is recorded on the printing paper.

Abstract: A scanner which can be used in both sheet feed and self move modes including a scanner body and a cover. The scanner body has an entry slot at a top side of a lateral wall thereof, and an elongated roller driven by a motor and connected via circuit means to a control panel. The control panel is connected via circuit means to a sensor at one end and is connected to a connector at the other end for connection with a computer. The scanner body further has an exit slot at a top side of a lateral wall opposite to the entry slot. The cover is a plate connected via connecting means to the top side of the scanner body and can be turned open through 270.degree.. When the cover is put on the scanner body, the scanner is in a sheet feed mode. But when the cover is turned over through 270.degree. and the scanner body inverted, the scanner is in a self move mode.

Abstract: A handy scanner for scanning an image by user hand-held operation along the surface of a sheet of document is disclosed. The scanner includes an illumination light source for illuminating the image for scanning, an image pick-up mechanism receiving the light reflected from the image illuminated to be scanned, and converting the received light into an image electrical signal, a moving mechanism used for conducting movement of the scanner over the surface of the image, a position detector coupled to the moving mechanism for detecting the position of the apparatus over the image surface, an electronic circuitry coupled to the image pick-up mechanism and the position detector used for receiving the image electrical signal and the position electrical signal respectively and processing them, and a scanning path straightness-maintaining mechanism used for assisting to constrain scanning movement of the scanner in an intended straight line for achieving optimized scanning effect.

Abstract: An optical communication system for a printer includes an infrared light emitting diode for emitting a radiation for transmitting a printing data, an infrared receiver for receiving the printing data transmitted with the radiation, a printer body to which the printing data is supplied through the infrared receiver, a microcomputer for detecting a state of data transmission of the printing data, an indicator light emitting diode for indicating the state of transmission in accordance with the microcomputer so that the state of printing data transmission is visible to a user.

Abstract: A portable facsimile machine (10) for communicating image data to a remote machine, comprising an internal power source (20) and a user input device (28) for communicating with a controller (32) which controls the operation of devices within the machine including a scanner (16, 18) for inputting data representative of a scanned image into a memory (34), a display (12) for a user to view the scanned image stored in the memory and a communication system having a transducer (36) which creates a signal representative of the image data to enable communication of the image data over a telecommunication system to the remote machine.

Abstract: An image reading device, particularly a hand scanner, capable of setting a reading position in the main scanning direction accurately at all times. A stage glass is affixed to the reading surface of the hand scanner. A reference line is printed on the stage glass outside of the valid reading range of a CCD (Charge Coupled Device) image scanner. For the adjustment of the valid reading range, the image sensor and a lens are roughly adjusted such that data representative of the reference line appears at the edge of the valid reading range. Subsequently, the valid reading range is electrically shifted in the main scanning direction such that the reference line disappears.

Abstract: An image communication apparatus includes a reader for reading an original image, a communication unit including an NCU for transmitting and receiving image data through a subscriber line, a recorder for recording the image read by the reader and the image data received by the communication unit on recording paper, a CPU for controlling an overall operation of the image communication apparatus, and contacts for connecting a detachable auxiliary or external device so that the CPU has an auxiliary function of the image communication apparatus.

Abstract: A mobile device for close-up -photography or -video-recording is so designed that it is easily useable for the investigation of surface details of an object which is particularly large and soft, for example human skin. When placed in contact with the surface of the object, then without further adjustments a sharp and greatly enlarged image is obtained. The device includes a distance-enforcing structure between the optical system and the object which in the object-side focal area ends with a vaulted surface. The vaulted surface is mechanically stiff and is shaped to compensate the image-plane curvature of the optical system by establishing a corresponding object-plane curvature. This compensation enhances the sharpness of the image obtained for an object surface which is pressed against the vaulted surface and thus is positioned in the true object-side focal area of the optical system.

Abstract: An image processing apparatus includes a reader for reading an image to be added to an original image, an editor for performing a desired editing process for image data read with the reader, and a storage medium for storing therein the image data edited by the editor. The storage medium is detachably mounted on a copying machine for copying the original image. The image data edited by the editor may be directly transmitted to the copying machine so as to be combined with the image being copied.

Abstract: A scanner frame comprises a vertical track which is slidably attached at one end thereof to a horizontal track. The horizontal track is attached to a drawing board or any other suitable flat surface. An optical imaging device (i.e., an optical scanner) is slidably attached to the vertical track. A marker strip comprising a series of bars of uniform pitch are disposed on a surface of the horizontal track along the length thereof. These bars are detected by a sensor assembly disposed on the vertical track. Another marker strip comprising a series of bars of uniform pitch are disposed on a surface of the vertical track along the length thereof. These bars are detected by a sensor assembly disposed on the scanner. During use, a drawing to be scanned is secured on a board, the vertical track is positioned at the left-most position and the scanner is positioned at the upper end of the vertical track.

Abstract: A conveyance device 4 for conveying a manuscript to an image reading section of a main body mounted by an image processing system is provided with a base member 6 removably fixed to the main body to provide a conveyance path 5, a driving mechanism and a manuscript guide member 8 for driving and conveying the manuscript. The manuscript is located between the manuscript guide member and a rib 9 at a left-hand side, and conveyed in a stable status. On a surface of a top end of a moving member 16 associated with the manuscript guide member is provided a white colored plate 17. A groove portion 18 other than the plate is dark, and the image is read to be binary coded whereby a pixel corresponding to the plate indicates "1". A position of the plate is located in the guide member or a right hand side edge of the manuscript, and a left hand side edge is fixed by the rib. Accordingly, a manuscript width (read width) Is determined from the pixel "1".

Abstract: An image-scanning device which includes an image input area possessing an image sensor area that reads images such as characters and graphics on a manuscript illuminated by a light source, transfers the image data corresponding to the read data in a specified size after issuing an image data transfer interrupt request; and an image processing area possessing a ring buffer that stores the image data being sent from the image input area on a specified data size basis in specified areas, and which performs image correction on the image data stored in this ring buffer between image data transfer interrupt requests from the image input area.