Abstract: There is disclosed an image reading apparatus having a plurality of illuminating packages and an optical guide member for guiding lights from the plurality of illuminating packages and reflecting in the direction of an object, thereby irradiating the object in a line shape, wherein three or more illuminating packages are arranged at positions in the optical guide member which are symmetrical for a reflecting portion of the optical guide member and an image can be read at a high picture quality.

Abstract: An image reading apparatus includes a light source for irradiating a document paper with light, and a photoelectric conversion unit for detecting the light reflected by the paper. The light source is connected to a first harness which is connected to a connector board via a first connector. The photoelectric conversion unit is connected to the second harness which is also connected to the connector board via a second connector. A third harness is further connected to the connector board via a third connector for power supply and signal transmission. The connector board is formed with a plurality of test pads used for connection to an outside test apparatus without detaching the first and second connectors from the connector board.

Abstract: A document feeder comprises a hopper table on which documents are to be mounted, a feeding roller for transporting the documents mounted on the hopper table, and lifting system for raising and lowering the hopper table to position the topmost sheet of the documents mounted on the hopper table at a level of the feeding roller. The lifting system includes a hopper motor, and a drive mechanism for raising and lowering the hopper table by means of the driving force. The drive mechanism swings the hopper table when the hopper table is located between an lower limit position and a switching position above the lower limit position, or moves the hopper table vertically with maintaining its posture horizontally when the hopper table is located between the switching position and an upper limit position above the switching position. In addition, the height and the slant angle of the feeding roller sequentially conform to the movement of the hopper table in order to prevent jamming.

Abstract: A scanning device for a computer includes a case body, a transparent scanning panel, a transparent viewing panel, and a scanning module unit. The case body includes a broad upper wall and a broad lower wall, and has a columnar hollow space which extends downwardly from the broad upper wall to the broad lower wall so as to form upper and lower annular edge portions respectively in the upper and lower walls. The upper and lower walls respectively define upper and lower annular openings. The scanning panel is fitted to the upper annular edge portion to cover the upper annular opening and defines a scanning area with a first size indicating mark. The viewing panel is fitted to the lower annular edge portion to cover the lower annular opening so as to define a viewing area through which the first size indicating mark is visible.

Abstract: An anchoring mechanism is disclosed for anchoring a carrier driving wire in an image processor. The wire is clamped between the carrier head of a set screw threaded into the carrier and thereby operatively connect the wire to the carrier. Such improved arrangement not only reduces the number of parts but also facilitates operation of anchoring the wire on the carrier. Specifically, bottom plate sections of a first carrier extend outward from longitudinally opposite ends of a groove serving to hold an illuminating lamp. Each of these bottom plate sections is formed with a bed plate section, which has a threaded hole formed through it. Wire retainer means is provided in proximity to the threaded hole. Upon insertion of the wire in the retainer means, the wire is sufficiently curved to generate a restoring force biasing itself to be pressed against the set screw. Then, as the set screw is threaded into the threaded hole the wire is clamped between the head of the set screw and the bed plate section.

Abstract: An image scanner capable of scanning double-sided documents or of being divided into two single-sided scanners includes a main body with an automatic document feeder and an image capture device, a base, and a flatbed scanner with its own image capture device. The main body can be secured either to the base, in which case a sheet fed single-sided scanner is formed, or to the flatbed scanner, in which case a double-sided scanner is formed. The automatic document feeder eliminates the need for a transparent document thin film guide by using the top surface of the base or of the flatbed scanner to guide a document past the image capture device and onto a guiding plate extending at a non-zero angle from the main body and into a groove in either the base or the flatbed scanner, the groove receiving the guiding plate so that the guiding plate extends into the path of the document to guide the document into an output tray.

Abstract: An improved image processor construction is disclosed in which a carrier driving electric motor is located in a housing of the image processor. Generally, a carrier mechanism is driven by an electric motor to scan an original and thereby to read an image on the original. According to the invention, the electric motor is disposed within a housing of the image processor so that any portions projecting outward from the housing can be eliminated and an outer size of the image processor can be correspondingly reduced. More specifically, a housing of the image processor includes a bottom plate having a downward recess and the electric motor is disposed within this downward recess. A loop of driving belt is draped on a driving pulley fixed around an output shaft of the electric motor, on one end, and on the longitudinal middle point of a driving shaft, on the other end, so as to transmit a rotation force of the electric motor to the driving shaft.

Abstract: A flat bed scanner apparatus for scanning sheets with a stacked-sheet feeder and a flat bed cover separated from one another. The flat bed scanner apparatus includes a flat bed and a flat bed cover to be used for scanning an individual sheet, a stacked-sheet feeder separate from the flat bed cover for feeding a plurality of sheets seriatim, and a scanning module installed inside the flat bed scanner apparatus, for selectively scanning a sheet on the flat bed and a sheet from the stacked-sheet feeder by varying an optical path of light illuminating the sheets.

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: A document scanner having a scanner carriage with an integrally formed light monitor window and tab provides a positive, reliable feedback path for adjusting digital image gain controls to provide a uniform digital image during and after an initial lamp warm up period of time.

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: A carriage with a stretched function is provided for being used in an image scanning apparatus. The carriage includes a first part, having a first contact surface and a second contact surface and movable between a start position and an end position of a scanning area of the image scanning apparatus, for disposing thereon the light source and initial reflector of the image scanning apparatus, and a second part having a third contact surface and a fourth contact surface for disposing thereon a reflector set of the image scanning apparatus, wherein the second contact surface is separated from the fourth contact surface by a distance and the first contact surface will contact the third contact surface when the first part is positioned on the start position, and the second contact surface will contact the fourth contact surface and the first contact surface is separated from the third contact surface by the distance when the first part is positioned on the end position.

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: In a digital copying mechine using a multi-beam optical system, first light receiving elements of a light beam detector placed on the extension of the surface of a photosensitive drum detects the positions of paths of scanning light beams in the sub-scanning direction. On the basis of the results of this detection, the amount of control for the position of the path of each light beam is calculated. Galvano mirrors, adapted to reflect the light beams onto the surface of the photosensitive drum, are driven accordingly, so that the paths of the light beams are properly positioned in the sub-scanning direction. Second light receiving elements of the light beam detector detect times at which the light beams move across the light beam detector. A sync clock is produced after a delay from when each light beam moves across the light beam detector.

Abstract: Apparatus effective in a reading condition to read photographic pixels from developer film in a cartridge and in a writing condition to expose unexposed film in such cartridge is disclosed. The apparatus moves the photographic film to a reading and writing position. Different colored light are transmitted to the photographic film. The apparatus is effective when in the writing condition for modulating such light for causing the optical means to transmit light of different colors to form pixels of different colors on the unexposed photographic film, and means effective when in a reading condition for illuminating exposed and developed photographic film. A sensor is provided for detecting light reflected from the illuminated photographic film to determine the exposure level of colored pixels on the exposed film.

Abstract: The object of the present invention is to reduce the line distance between light receiving elements for three colors of RGB of a color linear image sensor to reduce the required storage capacity for an external memory. The color linear image sensor is constructed such that a charge transfer element is disposed between each two adjacent light receiving elements of three rows and a charge read-out element is disposed between each charge transfer element and each of the light receiving elements on the opposite sides of the charge transfer element such that, when signal charges from the light receiving elements for different colors are to be transferred, each of the character transfer elements is used commonly and time divisionally by the centrally located light receiving elements and the light receiving elements on each of the opposite sides of the centrally located light receiving elements.

Abstract: An apparatus according to the present invention includes a stepping motor (5) and a motor drive circuit (4) for first moving a lamp unit to hit the unit against a reference object opposite to an origin and then moving the unit toward the origin, a CPU (3) for measuring the distance through which the lamp unit is moved from the reference object toward the origin, and the CPU (3) for controlling the lamp unit so that the lamp unit stops at the origin according to the distance measured from the reference object.

Abstract: The present invention provides an image forming apparatus in which paper sheets are not forgotten in a paper discharging section so provided in the main body of the apparatus so as to open toward the front. An operation panel is arranged in an upper part on the front side of the main body of the image forming apparatus 16, and a side space 16 is provided on the right of the operation panel. An operator can visually confirm paper sheets discharged into a paper discharging section from above through the side space. The paper discharging section is in the main body of the image forming apparatus, whereby economy of space can be achieved.

Abstract: This invention is related to an image reading apparatus for use in a digital copy machine and a facsimile machine. The invention is made possible to obtain the simple flat average value of the white reference data used for a shading correction obtained with a photoelectric conversion elements arranged in a line by sensing the reflected light upon a white reference plate. The image reading apparatus comprises an n-bit memory for the white reference data and another n-bit memory for the black reference data and a reference data processing circuit for summing white reference data after 2.sup.m times of line readings on the white reference plate. The summation of the data is carried out with the use of an n+m bit memory region, consisting of an upper n bit section and a lower m bit section, that is made up with the n-bits of the n-bit memory of the white reference data and m-bits of the n-bit memory of the black reference data. Then after summation of 2.sup.

Abstract: An image forming apparatus has an optical system, an image forming section and a paper conveying section provided in its main body. The main body includes a first portion containing the optical system and a second portion containing the image forming section and the paper conveying section below the first portion. A paper discharging section opening toward the front is provided between the first portion and the second portion. The first portion is shifted by a predetermined amount backward with the position where it is lined up to a second portion as a basis. It is easy to visually confirm whether or not there is a paper sheet in the paper discharging section below the first portion.