Abstract: A feature-analyzing section determines whether a given picture element included in image information supplied from a line buffer represents a character portion or a photograph portion. In accordance with the determination made by the feature-analyzing section, a threshold value selection section selects either a threshold value calculated by a first threshold value calculation section, and to be used in relation to charcter portion, or a threshold value calculated by a second threshold value calculation section, and to be used in relation to photograph portion. By using the threshold value selected by the threshold value selection section, a binary-encoding section binary-encodes image information which is supplied thereto through a delay circuit. On the basis of the determination made by the feature-analyzing section, a determination section determines whether or not the given picture element represents a bold character portion.

Abstract: A recording apparatus according to the present invention in which a data is recorded by charging a recording medium, scanning laser beams on the recording medium to form electrostatic latent images thereon, and developing and transferring the electrostatic latent image, comprises a charger for charging the recording medium; and at least two image forming device disposed around the recording medium for recording multi-colored and/or uni-colored data in a plurality of print modes. In the recording apparatus, the print modes is controlled so as to drive the second image forming device corresponding to the second print mode after the operation of the first print mode is closed, when the second print mode is designated in the operation of the first image forming means corresponding to the first print mode. And, the driver for driving the recording medium is controlled so as to continuously drive the recording medium when the first print mode is switched to the second print mode by the switching device.

Abstract: An image processing apparatus comprises a memory for storing image data and character data, a display for displaying data stored in said memory means, and a three-address generating section for generating three addresses for addressing the memory to execute simultaneously two processings, one of which transfers the data from the memory to the display and the other of which writes character information into said memory.

Abstract: A recording apparatus according to the present invention in which a data is recorded by charging a driven recording medium, scanning laser beams on the driven recording medium to form electrostatic latent images thereon, and developing and transferring the electrostatic latent image, comprises a charger for charging the driven recording medium; and at least two image forming device disposed around the recording medium for recording multi-colored and/or uni-colored data in a plurality of print modes. In the recording apparatus, the print modes is controlled so as to drive the second image forming device corresponding to the second print mode after the operation of the first print mode is closed, when the second print mode is designated in the operation of the first image forming means corresponding to the first print mode.

Abstract: A recording apparatus according to the present invention in which a data is recorded by charging a drived recording medium, scanning laser beams on the drived recording medium to form electrostatic latent images thereon, and developing and transferring the electrostatic latent image, comprises a charger for charging the drived recording medium; and at least two image forming device disposed around the recording medium for recording multi-colored and/or uni-colored data in a plurality of print modes. In the recording apparatus, the print modes is controlled so as to drive the second image forming device corresponding to the second print mode after the operation of the first print mode is closed, when the second print mode is designated in the operation of the first image forming means corresponding to the first print mode.

Abstract: An image forming apparatus including pairs of a latent image forming unit for forming the latent images with the scanning of the laser beams and a developing unit for developing the latent images which are disposed around the image bearing member to accomplish multi color printing; a detector for detecting a scanning point of a laser beam irradiated before the irradiation of the beam for the image forming; counters for counting detect signals corresponding to the scanning point of the laser beam and for generating allowable signals when the values of the detect signal reaches to predetermined set values; and a write control unit for controlling the latent image forming unit to irradiate the beams for the image forming upon the generation of the allowable signals. Namely, print starting points are adjusted in accordance with the scanning point of the laser beam before the irradiation of the beam for the image forming.