Abstract: The image recording method and image recording apparatus synchronize phase of a light deflector with rotation of a drum in response to the drum start point detection signal generated each time the drum rotates once, expose the two-dimensional image of one frame formed by a group of light sources disposed two-dimensionally onto the recording medium while causing the image at rest on the recording medium relatively thereto, thereafter move the optical system in the auxiliary scanning direction by an integral multiple of a pixel pitch forming one frame as well as deflect an angle of the light deflector in the main scanning direction by one frame so as to expose the next frame and on for one rotation of the drum.

Abstract: The amount of exposure to a light beam is coarsely adjusted by a coarse adjusting unit which has a wider adjustment range, and finely adjusted by a fine adjusting unit which has a narrower adjustment range but a higher adjustment accuracy. With the coarse and fine adjusting units, the amount of light of the light beam for recording an image can be adjusted to a nicety by a relatively inexpensive arrangement.

Abstract: The amount of exposure to a light beam is coarsely adjusted by a coarse adjusting unit which has a wider adjustment range, and finely adjusted by a fine adjusting unit which has a narrower adjustment range but a higher adjustment accuracy. With the coarse and fine adjusting units, the amount of light of the light beam for recording an image can be adjusted to a nicety by a relatively inexpensive arrangement.

Abstract: An image processing system which includes an input controller having a CPU adapted to dot and compress density or tone data for an image read out by an input unit and for temporarily staying said compressed image data at a buffer; a work station providing a second CPU adapted to picture-edit not only a code information edited by an editing input unit but also the image data by the use of an input operating means and a display means; a file server including a third CPU connected to the input controller and the work station by bus lines and for storing the image data, code information and edited data picture-edited by the work station in the file server; and an image setter having a fourth CPU for reading out the edited data stored in the file server and subjecting the edited data to a required data processing, thereby outputting an image over an image output unit characterized in that the input controller, the file server, the work station and the image setter are individually and independently subjected to an

Abstract: This invention is an image compression device which includes a means to rearrange binary image data in a unit of pixel in accordance with a first conversion table, and a means to encode said rearranged data in accordance with a second conversion table, and which is characterized in that the second conversion table contains a data comprising a code which is added to a predetermined code used for the case where the same logical value continues in the rearranged data and which is based on the number of continuous pixels, a code having the same bit at the leading edge thereof as the leading bit of the predetermined code for the case where the same logical value continues up to the trailing end of the rearranged data, and a code having at its leading edge of a bit different from the leading bit of the predetermined code which is to be used for the data other than above. The above device according to this invention can compress any binary data including line images and dot images at high efficiency and high speed.

Abstract: This invention is an image processing system which includes an input controller having a CPU adapted to dot and compress density or tone data for an image read out by an input unit and for temporarily staying said compressed image data at a buffer; a work station providing a second CPU adapted to picture-edit not only a code information edited by an editing input unit but also the image data by the use of an input operating means and a display means; a file server including a third CPU connected to the input controller and the work station by bus lines and for storing the image data, code information and edited data picture-edited by the work station in the file server; and an image setter having a fourth CPU for reading out the edited data stored in the file server and subjecting the edited data to a required data processing, thereby outputting an image over an image output unit characterized in that the input controller, the file server, the work station and the image setter are individually and independent