Abstract: An image reading device, in which two LED chip groups, light emission thereof being separately controlled, are disposed along a direction perpendicular to a conveyance direction of a photographic film. Acrylic blocks for guiding light to a vicinity of the photographic film, a lens unit for focusing light transmitted through the frame image, and a three-line CCD for receiving and conducting photoelectric conversion of the transmitted light are respectively disposed at positions corresponding to the LED chip groups. Hence, by simultaneously conveying photographic films, each having a width corresponding to the width of each LED chip group, and separately irradiating each of the photographic films from one LED chip group, frame images of each film can be read simultaneously.

Abstract: An image reading apparatus includes a photoelectric transducer which reads an image of a document and outputs an analog image signal, an A/D converter which converts the analog signal to a digital image signal, and an offset level detecting circuit which determines an average value of output levels from picture elements in a predetermined range of the photoelectric transducer. Further, there is an offset setting unit which provides an offset in the analog image signal before the A/D conversion on the basis of the average value, a first comparing device which compares the average value to a predetermined target value, and an adjusting device which adjusts a size of the predetermined range of the photoelectric transducer on the basis of the result of the comparison.

Abstract: In order to provide an image reading apparatus, which can read images on a monochromatically developed color photographic film, it is provided a reading conditions changing portion, which changes reading conditions of sensors on the basis of information applied to the color photosensitive material, or is provided light sources which irradiate light, having at least one of wavelength and light quantity being different from that of the other, at an emulsion surface side and a support surface side of the color photosensitive material, respectively.

Abstract: An image reading apparatus includes a sheet guide path and reads an image on a sheet. The image reading apparatus includes a sheet transporting device configured to transport the sheet along the sheet guide path and an image reading device configured to optically read the image on the sheet. Further, the image reading apparatus includes a dirt trapping device configured to trap dirt carried on the sheet. The dirt tapping device is disposed at a position upstream from the image reading device relative to a direction in which the sheet is transported by the sheet transporting device.

Abstract: A method, apparatus and computer-readable medium for converting messages includes stations coupled to facsimile devices and to client machines by a network to allow users at the client machines to communicate with users at the facsimile devices. In addition, the stations include processors for extracting information from messages sent by users at the facsimile devices and received by the stations, using the extracted information to convert the messages, and sending the converted messages through the network to the users at the client machines.

Abstract: A transparent scanning apparatus is mounted on a cover of a flatbed scanner for scanning a transparent document by reflective scanning or transparent scanning. The apparatus comprises a transparency adapter secured to the cover, a plurality of frames for fixing article, an opaque box for receiving the frames, and a fastening means for releasable securing the transparency adapter to the box and entirely covering the window of the transparency adapter when the box is secured to the transparency adapter.

Abstract: After a display on a display unit is changed to a copy stand by screen, until an operation regarding a copy function is performed by use of an operation unit, the apparatus status regarding a facsimile function and the apparatus status regarding the copy function are displayed on the copy stand by screen to be displayed on the display unit. After the operation regarding the copy function is performed by use of the operation unit, only the apparatus status regarding the copy function is displayed on the copy standby screen.

Abstract: The present invention provides an optical scanner that adjusts the image-induced voltage by controlling the exposure time of the sensors. The optical scanner comprises a scanning module comprising a plurality of color detectors for detecting light of different colors when scanning a document to generate corresponding electric charge, a cathode-ray tube for providing light to the document, a power supply for supplying power to the cathode-ray tube, and a control circuit for controlling operations of the optical scanner and the power supply. The control circuit controls an exposure time of each of the color detectors according to the sensitivity of the color detector to its corresponding color of light so that the amount of electric charge generated by each of the color detectors during each exposure is controlled and properly scaled.

Abstract: The present invention provides an image scanning device having an upper housing and a lower housing. The upper hosing includes at least a scanning module for outputting digitalized image signals. Thus, a user can place a document facing up on a document plate and therefore be able to examine the wrinkles, alignment and inclination.

Abstract: A scanner includes a housing, a control circuit positioned in the housing, the control circuit being used to control the operations of the scanner, a scanning module positioned in the housing and electrically connected to the control circuit, the scanning module being used to scan a document and generate associated document image signals, and an input device positioned on the housing and electrically connected to the control circuit, the input device being used to input proofreading symbols, alpha-numeric symbols, or special symbols to generate an associated input signal, the control circuit using the input signal to control the scanner.

Abstract: An image reader of the present invention comprises a fluctuation detector that can be connected to the external equipment by means of an image data input-output section, and can subject image data, continuous in a first direction and outputted as image information on a test chart is photoelectrically converted by means of a CCD sensor when a mirror set or the test chart is moved in the first direction, to Fourier conversion, thereby obtaining the frequency of a fluctuation of the obtained image data and a maximum value of the amplitude thereof. If the obtained maximum value of the fluctuation amplitude is greater than a given value, the fluctuation detector is used to compare the frequency of the fluctuation and the natural frequency of a drive motor for generating driving force for moving the mirror set or the image. If the fluctuation frequency and the natural frequency are not equal, the value of current supplied to the drive motor is increased.

Abstract: A system, method and apparatus for translating a carriage from one position to another position utilizing an injection molded plastic translating system are disclosed. In a preferred embodiment, an injection molded plastic translating system is utilized within a flatbed scanner to translate a scanhead carriage along a desired path during the scanning process. The plastic translating system is formed utilizing gas injection molding techniques, resulting in a plastic translating system that does not warp. Further, the plastic translating system is smooth to allow the scanhead carriage to be translated with substantially no vibration. Also, the plastic translating system of a preferred embodiment results in very little wear after many translations of the carriage.

Abstract: The present invention provides an image scanning apparatus 100 including a stand block 1 having a support arm 3, a scan type illumination device 5 for applying a slit-shaped light beam 8 onto a surface of a manuscript 2, and a manuscript image scanning device 4 mounted on the support arm 3 for receiving the slit-shaped light beam 8 reflected from the surface of the manuscript 2 and having a manuscript image. The scan type illumination device 5 applies the slit-shaped light beam 8 in a direction 11 vertical to the longitudinal direction of the slit-shaped light beam 8. The manuscript image scanning device includes a manuscript image input block 13 and a light detecting device 14 for receiving the reflected light 8′ output from the manuscript image input block 13. The manuscript image input block 13, in synchronization with the scan operation of the scan type illumination device 5, introduces the reflected light 8′ into a predetermined position of the light detecting device 14.

Abstract: An apparatus for driving a scanner includes a driving motor which is rotated in both directions, a driving gear which is driven by the driving motor, a driving pulley which rotates a timing belt coupled to the scanner body, a reduction gear which is engaged with a gear portion of the driving pulley, a power transmitting unit for directly transferring a rotational force of the driving gear to the driving pulley or transferring the rotational force through the reduction gear to the driving pulley, where, when reading a colored image, the driving force is decelerated and then transferred to the driving pulley under the same speed of the driving motor as a case of reading a black-and-white image, in accordance with the rotating direction of the driving motor.

Abstract: A message is displayed on a display unit to indicate that copy reserve is ready even during copying operation. Even during copying, a document placed on a scanning unit (14) can be scanned after the number of copies and the scaling are set from a numerical key pad (16a) and a start key (16d) is pressed. The document is scanned in a scanning unit (14), the image data of which is stored in an image memory (18). As a result, even during copying operation, it is possible to reserve next copy.

Abstract: Since an apparatus has a linear image sensor for scanning an image at the stop position of a mirror table from a document that moves at a constant speed, a black stripe image detection circuit for detecting the presence/absence of generation of a black stripe image on the basis of an image signal, and a CPU for determining that dust or soil is attached to the surface of the platen glass upon detection of generation of the black stripe image, and making control for changing the stop position of the mirror table and control for displaying a warning message, any black stripe generated due to dust or soil on the platen glass surface is detected in the sheetfed scanning mode, and the control for changing the sheetfed scan position or the control for displaying a warning message indicating that dust or soil is attached to the platen glass surface is done in accordance with the detection result, thus reducing the frequency of occurrence of generation of a black stripe compared to a conventional apparatus.

Abstract: A method for choosing a compression process for a scanned image includes scanning an image, forming a bitmap of the scanned image and selecting at least one portion of the scanned image as a compression test subject. The selected portion is selected by a variety of compression techniques and a score for each technique is assigned. The compression technique with the best score is then used to compress the entire bitmap of the scanned image.

Abstract: An optical scanner of variable scanning speeds is provided. The scanner includes a scanning module, a power transmission device, a gear module and a driving device. The scanning module is connected to the power transmission device. The gear module includes at least a first gear and a second gear, and the gear module switches between a first position and a second position. The driving device drives the gear module upward or downward. The driving device forces the scanning module and a scanned object to move relatively at a first speed through the first gear and the power transmission device when the gear module is at the first position, and the driving device forces the scanning module and the scanned object to move relatively at a second speed through the second gear and the power transmission device when the gear module is at the second position.

Abstract: A system and method for determining the registration parameters necessary for registration or edge detection processing to enable the flexibility of changing the color of backing to suit a given application. The method includes scanning the backing surface to obtain at least two sets of gray level values; (b) determining an average gray level for each of the two color channels; (c) selecting a registration channel based on the average gray level; (d) determining a gray level deviation for the registration channel; and (e) determining registration parameters based on the average gray level and the gray level deviation of the registration channel.

Abstract: Disclosed are an image forming system including an image reader, a printer, and a processor and a control method therefore. In this image forming system, the image reader reads an image from an original, and the printer prints the read image onto a print medium. If a “no print medium” error occurs during the printing operation by the printer, the read operation by the image reader is terminated.