摘要:
An apparatus produces a member having hidden information in which a sheet of conceal paper for hiding the information and a sheet of recording paper having an image recorded thereon are bonded releasably. The apparatus includes a recording paper supply section, a conceal paper supply section, and a fixing section. The recording paper supply section supplies the sheet of recording paper. The conceal paper supply section supplies the sheet of conceal paper. The fixing section fixes the image, which is formed on the sheet of recording paper supplied from the recording paper supply section, onto the sheet of recording paper, and bonds the sheet of conceal paper supplied from the conceal paper supply section to the sheet of recording paper simultaneously.
摘要:
A polygon mirror 36 have reflecting surfaces being arrayed such that the reflecting surfaces each having coatings 38 at both ends thereof and the reflecting surfaces having no coating are alternately arrayed. A beam width of a light beam reflected by a coating facet 36A is smaller than a beam width of a light beam by a non-coating facet 36B. Alight beam (first light beam) is deflected by the coating facet 36A, and it lands on a photoreceptor. A light beam (second light beam) is deflected by the non-coating facet 36B, and it lands on the photoreceptor. At this time, a beam diameter of the first light beam on the photoreceptor in the first scan direction is larger than that of the second light beam. When the laser beam is deflected by the non-coating facet 36B, the laser beam is modulated by image data. When it is deflected by the coating facet 36A, the laser beam is modulated by bias data. Both the laser beams are projected to over the entire surface of a projected object within the scanning area, whereby an electrostatic latent image of high contract is formed on the object surface.
摘要:
A method of processing image data to reproduce an image having good half-tone reproduction, sharpness, and details, through pulse modulation of a laser beam. In the method, the laser beam is turned on and off in accordance with the result of comparing an input image signal with a reference signal which has been frequency modulated in accordance with a shape feature of the input image signal. In the case of an image having low input contrast, the tone performance of an image output unit is improved by the mesh dots of the low spatial frequency. In the case of an image having high input contrast, an image having high sharpness and details is reproduced by the mesh dots of the high spatial frequency.
摘要:
An apparatus produces a member having hidden information in which a sheet of conceal paper for hiding the information and a sheet of recording paper having an image recorded thereon are bonded releasably. The apparatus includes a recording paper supply section, a conceal paper supply section, and a fixing section. The recording paper supply section supplies the sheet of recording paper. The conceal paper supply section supplies the sheet of conceal paper. The fixing section fixes the image, which is formed on the sheet of recording paper supplied from the recording paper supply section, onto the sheet of recording paper, and bonds the sheet of conceal paper supplied from the conceal paper supply section to the sheet of recording paper simultaneously.
摘要:
An image pickup apparatus includes an image data acquisition part that acquires image data obtained by photographing a subject, a subject ID acquisition part that acquires, on the basis of a signal obtained from the subject, a subject ID to identify the subject, and a memory that stores the image data acquired by the image data acquisition part and the subject ID acquired by the subject ID acquisition part, the image data and the subject ID being related. A subject ID adding method includes acquiring image data obtained by photographing a subject, acquiring, on the basis of a signal obtained from the subject, a subject ID to identify the subject, and connecting the image data and the subject ID to store them.
摘要:
Input gray-scale bit map information is inputted to an image forming position extracting unit for extracting image forming position information. An input computer-formed image is inputted to an image forming position extracting unit for generating an image forming position. At an image forming position overlapping unit, two image forming positions are overlapped with each other, and the composed image forming position is sent to a pixel value calculating unit and an image forming position determining unit. The image value calculating unit measures a width of the composed image forming position and converts the measured value into a pixel value. The image forming position determining unit calculates a barycenter of the composed image forming position. The pixel value and the barycenter are sent as image information. Encoding without distortion can be executed by enhancing the precision of the barycenter.
摘要:
The invention provides an image formation device based on the electrophotographic system, whereby, when an outputted image varies from the halftone area to the background area in the sub-scanning direction, the density reduction of a rear end area of the halftone area that borders on the background area can be prevented, by means of simplified and small-scale processing. In this image formation device, a backward edge of the halftone area that borders on the background area is extracted, and an image data value of the background area including m pixels after this backward edge in the sub-scanning direction, of input image data Si, is modified to a setting value with correction data. The setting value is set to a value slightly lower than the threshold value corresponding to the dot area coverage of an image recurrence start point. If there is a halftone area whose image data value given by input image data Sib is greater than the threshold value, or a background area whose image data value is greater than the setting value, in an area including m pixels in the sub-scanning direction after the backward edge of the halftone area given by input image data Sia, the value of the image data with regard to that area will not be modified, and only the value of the image data with regard to the area from the backward edge of the halftone area to that area will be modified to the setting value.
摘要:
It is made possible to prevent decrease in the density due to the image output characteristic of the image output unit in the subscanning direction by means of a method according to the present invention capable of real-time processing without causing the circuit capacity and the memory to be increased. In an image input unit 100, the input image data is acquired so that its time series direction becomes a direction indicated by an arrow 42 corresponding to the subscanning direction of an image output unit 300. The input image data from the image input unit 100 is corrected in accordance with the image output characteristic of the image output unit 300 in the subscanning direction. The image data after the correction is rotationally processed so that its time series direction becomes a direction indicated by an arrow 41 corresponding to the main scanning direction of the image output unit 300. The image data after the rotary processing is sent to the image output unit 300.
摘要:
To form an exposed image with striking contrast on photosensitive material and form a high definition and high quality image, a first beam modulated according to an image signal and a second beam modulated according to an inverted image signal generated by inverting this image signal with smaller deelectrification effect than the first beam are synthesized on the photosensitive material.
摘要:
A color-image forming apparatus includes: an electrostatic latent image holder; electrostatic latent image forming unit for forming a plurality of electrostatic latent images on the image holder; a scanning unit for scanning the electrostatic latent image holder periodically at predetermined timings; developing devices for developing each of the plurality of electrostatic latent images by toners of each of different colors respectively, and forming thus developed toner image on the image holder; a simultaneously transferring device for simultaneously transferring the plurality of toner images onto a transfer medium; fixing device for fixing the toner image on the transfer medium; and timing-setting unit for setting a timing at which said scanning means starts scanning at each of slow scanning pitches in the direction of fast scanning for each of the plurality of colors; wherein the timings which are allotted to each of the colors are different each other so that the starting position of the scanning of each color at each of slow scanning pitches in the direction of the fast scanning is successively shifted at a predetermined distance.