Abstract: The present invention relates to a method of reading an image, which comprises exposing a color photosensitive material having at least three photosensitive layers containing blue-, green- and red-photosensitive silver halide emulsions, respectively, on a transparent support, processing the exposed color photosensitive material at a processing temperature of 50° C. or more to form a silver image, and substantially reading the silver image.

Abstract: An image read/write head (A) includes a support (7) for supporting at least one of paired platen rollers (P1, P2) and a detector (2) for detecting at least one of a document (D) and a recording paper (K). Therefore, an image processing apparatus incorporating the image read/write head (A) can be easily manufactured. The image read/write head (A) further includes a reflection preventing member (6) for collectively surrounding the plurality of light receiving elements (3) and the plurality of drive IC chips (80). Therefore, it is possible to prevent the plurality of light receiving elements from receiving scattering light or disturbing external light.

Abstract: The digital copier comprises a document table for supporting a document, a document tray for receiving documents, a line sensor for reading an image from each document in units of lines parallel to a main scanning direction, a sensor transporter for transporting the sensor to scan the document on the table from one reading surface edge in the sub-scanning direction during the table-document reading mode, a document feeder for feeding each document received in the tray such that the document is scanned from another reading surface edge in the sub-scanning direction during the feeder-document reading mode, and a processing section for processing a reading result of the sensor. Particularly, the processing section has a controller for controlling the read start timing to compensate for a read range which may deviate with respect to an identical effective reading area of each document between the reading modes.

Abstract: In an image reading apparatus which scans an image while displacing the relative position between the image on a predetermined medium and an image sensor, and sequentially transmits the read image data to an external device, when image reading operation of an image reading unit suspends, the relative position between the image and the image sensor is displaced to a predetermined position before the suspended position of the image reading operation, and reading operation restarts from the displaced position.

Abstract: A buffer memory has a plurality of blocks which are virtually broken up into a matrix pattern. An image processing apparatus has a memory controller for writing R, G, and B image data in the buffer memory in units of lines and in a predetermined color order, and reading out the R, G, and B image data written in the buffer memory. The memory controller switches operation for writing the R, G, and B image data in the blocks that belong to corresponding rows, and operation for writing the R, G, and B image data in the blocks that belong to corresponding columns in units of lines, and reads out old image data from a region of the buffer memory in which new image data are expected to be overwritten before the new image data are overwritten by the write operation.

Abstract: In an image processing apparatus which has an operating system (102) and scanner driver (103), is connected to a scanner (104) for reading an original and converting it into an image signal, and stores image data read by manipulating the scanner (104), a forgery determination processing module (103-2) of the scanner driver (103) compares the read digital watermark data with specific image data to determine the matching degree, and an anti-forgery control module (106) controls predetermined image processing on the basis of the determination result for the image data read by the scanner driver (103).

Abstract: The present invention concerns an image recording apparatus, which records images on a roll-type recording medium. The image recording apparatus includes a recording device to record an image on a recording medium by emitting ink onto the recording medium; a cutting member to cut the recording medium after the recording device records the image, the cutting member being disposed downstream in respect to the recording device in a conveying-direction of the recording medium; a second conveyance member to convey the recording medium, the second conveyance member being disposed at a position located between the recording device and the cutting member in the conveying-direction of the recording medium; and a conveyance controller to control the second conveyance member so as to generate a slack of the recording medium at a section between the recording device and the second conveyance member in the conveying-direction of the recording medium.

Abstract: A high definition light-scanning optical apparatus uses an oblique incidence optical system and has a simple configuration that does not exert any adverse effect on the quality of the image formed by it as the elements of the apparatus are appropriately arranged. The light-scanning optical apparatus comprises an incidence optical system adapted to cause the light beam emitted from an incident light emitting light source including a fold mirror to strike a deflection plane of an optical deflector with a predetermined angle in the sub-scanning section and a focussing optical system for focussing the light beam reflected by the deflection plane of the optical deflector on a surface to be scanned. The focussing optical system includes an f? lens system having a spherical lens and a first cylindrical lens showing power in the main-scanning direction and a second cylindrical lens showing power in the sub-scanning direction.

Abstract: An apparatus and method for minimizing the code length of an input address for at least one for variable length encoded data is claimed. A block of variable length encoded data is read. The block of variable length encoded data is then converted into sub-optimall encoded data. The variable length encoded data is defined in having a prefix portion and a suffix portion. The prefix portion of the variable length encoded data is used to signify the look-up table. The suffix portion of the variable length encoded data is used as an input address for the look-up table.

Abstract: A facsimile machine detects transition points in image data, and adjusts the image data accordingly. Preferably, the image data are run-length data, from which image margins are detected, and the image data are adjusted to avoid overflow of printing margins. The adjustment may include horizontal repositioning and zooming. In zooming, an offset is preferably added to avoid moire patterns.

Abstract: A photography scanning device is provided for automatically scanning either photographs or transparencies. The scanning device is provided with a sheet feeding and handling mechanism that does not bend a photo or transparency to a degree that it is damaged as it passes from a sheet feeding stack, to a scanning station, and on to a sheet receiving stack.

Abstract: An image reading device in which a processing time required for prescanning and fine-scanning of a film can be shortened. A reading system for prescanning which performs prescanning and a reading system for fine-scanning which performs fine-scanning are adjacently juxtaposed on a conveying path of a photographic film. Prescanning is carried out by the reading system for prescanning, which is structured such that light that is emitted from a light source is transmitted through the photographic film, which is conveyed at a constant speed which is suitable for fine-scanning, the light is detected by a linear CCD, and frame images at the photographic film are thereby preliminarily read. Then, fine-scanning is carried out with the photographic film being conveyed at the same speed and the frame images on the photographic film being read at the reading system for fine-scanning by a quantity of light controlled on the basis of reading results of prescanning.

Abstract: An image forming apparatus has functions of tilt adjustments to a mirror for reflecting a laser beam and outputting an image after registration of a plurality of images.

Abstract: An image reading device and an image forming apparatus including the device, include: a multiple number of document trays; a control panel through which each of the multiple document trays can be designated to be used as a dedicated tray for a usage mode and which can provide the condition display corresponding to each of the usage modes; and a controller which, when a document or documents are placed on one of the dedicated trays, automatically presents on the control panel the condition display for the usage mode of the dedicated tray.

Abstract: An image processing apparatus comprises a color matching processing unit for performing color matching processing according to color reproduction characteristics of input and output devices, a color separation unit for separating image data subjected to the color matching processing, into color components corresponding to recording agents used by the output device, and a control means for controlling a method of the color matching processing and a method of the image data separation, according to a kind of input image. Thus, it is possible to perform the color matching processing and the color component separation according to the kind of input image, thereby realizing the color matching in consideration of how to use the recording agents and the satisfactory color matching according to a human's sight characteristic.

Abstract: The present invention relates to a driving device for a scanning module. An active gear wheel and a passive gear wheel are disposed respectively on two rigid frames. These two rigid frames are connected by a rigid component to avoid relative displacement between the two wheels due to external force or change of temperature. A spring is disposed on the rigid component to adjust the position of the passive gear wheel while the active gear wheel stays still. It allows the driving belt to automatically offset the strain according to its fatigue condition. The rigid component of the present invention may also be adopted as a guiding track for the scanning module.

Abstract: An image processing system provided with a line sensor for reading image signals in line units. First, the line sensor scans a document in a normal direction. At this time the image data obtained by the scan are subjected to image processing such as compression and the like. Areas of image data that cannot be processed to the high moving speed of the scanner are subjected to image processing by later performing a scan in the reverse direction.

Abstract: A method for transferring an image disposed on a medium with an image transfer device. The method comprises the steps of providing the image transfer device with a controller and a reader, reading the image on the medium with the reader, and forming with the controller a modified image from the image on the medium. The reader is operably connected to the controller for reading the image on the medium. The controller forms the modified image from the image on the medium in response to registering with the controller that the image on the medium is larger than a predetermined size. The modified image formed with the controller is smaller than the predetermined size.

Abstract: A scanner unit has first and second carriages under an original table glass. The first carriage has a first frame extending from a front side to a rear side along the original table, that is, in a main scan direction. Two rails for supporting both end portions of the first frame such that the first frame may slide in a sub-scan direction are provided on the front side and rear side of the scanner unit. A cold cathode fluorescent lamp is mounted on the first frame. In order to make a high-voltage-side harness of the cold cathode fluorescent lamp as short as possible, an inverter circuit board, which is a lighting circuit, is disposed as close as possible to a positive electrode of the cold cathode fluorescent lamp. A weight is attached on a side opposite to the inverter circuit board, thereby to stabilize a weight balance of the first frame in the main scan direction.

Abstract: A scanner unit has first and second carriages located below a glass document table. The first carriage has a first frame extending from a front side to a rear side along the document table, i.e. in a main scanning direction. The scanner unit contains, at the front side and the rear side, two rails that support the opposite ends of the first frame such that the first frame can slide in a sub-scanning direction. The scanner unit also contains, at the front side and the rear side, inhibiting elements for receiving a part of the first frame when the first carriage has slid along the rail to a hold position, thereby inhibiting the movement of the first carriage in the main scanning direction, and also for holding another part of the frame together with the rail when the carriage has slid to the hold position, thereby inhibiting the vertically upward movement of the frame.