Abstract: In an image recording apparatus provided with a recording head and a conveyor for relatively moving the recording head and an image recording medium, an image composed of a large number of pixels is recorded by plural recording elements of the recording head on the image recording medium relatively moved by the conveyor. Each recording element of the recording head is controlled to conduct turning on or off plural times (N times) so that one pixel is recorded by plural recording periods of each recording element, and a time length T(m) of each recording period is not increased monotonously or is not decreased monotonously with respect to recording sequential order “m” of each recording period in recording of each pixel, wherein “m” is an integer not less than 0 and not more than N−1. The time length of each recording period is obtained by adding one or two coefficients to a binary-weighted value.

Abstract: An image recording apparatus is provided with a recording head in which a plurality of light emitting sections are aligned along a single dotted line or plural dotted lines, and a shifting device for shifting photosensitive material relatively to the recording head so that an image is recorded on the photosensitive material with exposure light emitted by the light emitting sections while the photosensitive material is shifted relatively to the recording head. The recording head is controlled to conduct preliminary light emission to let the light emitting sections emit light before the image recording on the photosensitive material is started.

Abstract: In a color image recording apparatus provided with plural print heads and a conveyor, each print head includes a plurality of recording elements aligned along at least a single line in a primary scanning direction and the plural print heads are arranged in parallel to each other in the primary scanning direction so that plural component images of the color image are formed parallel respectively by the plural print heads. A reference component image forming device controls the plural pieces of print heads so as to form and superimpose plural reference component images based on the reference component image data and timing setting values. A timing correcting unit analyzes positional deviations in the secondary scanning direction among the plural superimposed reference component images and corrects the timing setting values on the basis of the positional deviations in the secondary scanning direction.

Abstract: An image recording apparatus having therein an image recording section includes: a light emitting dot row provided on a base plate and having thereon anodes arranged in a form of an array of a single row or a plurality of rows and having phosphors provided on the anodes; a cathode provided apart from the light emitting dot row, electrons emitted from the cathode colliding on the phosphors thereby the phosphors emit light; a grid which covers at least a part of the base plate in the vicinity of at least the light emitting dot row; an image focusing optical system having a focal depth of 350 .mu.m for focusing light emitted from the light emitting dot row on an image recording position; a driving element for driving the light emitting dot row so that the light emitting dot row emits light; and a conveyance device which conveys the light emitting dot row or an image recording medium so that the image recording medium moves relatively to the light emitting dot row.

Abstract: There is described an image recording apparatus, which includes an input device for inputting image data, a recording element to record images on an image recording medium in accordance with the image data, a memory device for storing a plurality of information groups having relationship between image data and recording energy control data, a discriminator for discriminating a sort of the image recording medium, a selector for selecting at least one information group out of the plural information groups in accordance with the sort of the image recording medium discriminated by the discriminator, and a controller for controlling the recording element on the basis of the information group selected by the selector.

Abstract: When a digital image recording means records digital image on an image recording medium based on order information or on digital image data, a computing means calculates digital image layout information, and calculates, based on the digital image layout information, X-cut size information used for cutting the image recording medium in the direction perpendicular to the conveyance direction of the conveyance means and Y-cut size information used for cutting the image recording medium in the direction perpendicular to the cutting direction for the X-cut. A cutting means which cuts the image recording medium into a prescribed size has an X-cut means to cut the image recording medium in the direction perpendicular to the conveyance direction of the conveyance means in accordance with the X-cut size information and a Y-cut means to cut the image recording medium in the direction perpendicular to the cutting direction of the X-cut in accordance with the Y-cut size information.

Abstract: A method of adjusting an image recording apparatus includes a step of adjusting at least one of a focus point position of an exposure means, a degree of parallelization of the exposure means and a position of the exposure means, and a step of correcting a light amount of the exposure means after the adjusting step.

Abstract: In an image recording apparatus provided with an image processor and an image recorder, the image processor has a memory for memorizing a reference converting condition for each color component, a correction value obtaining section for obtaining correction values for the image recording means for each color component, a converting condition calculating section for calculating an output converting condition for each color component based on both of the reference converting conditions and the correction values, and a converting section for converting the input image data into the output image data based on the output converting condition.

Abstract: A apparatus for forming an image on a silver halide photosensitive material with a plurality of recording elements aligned in the form of at least a single line, each recording element is driven so as to conduct an On-Off exposure independently to obtain a light amount datum in accordance with a density of a image signal, a correction value is calculated from the light amount datum and a light amount of each recording element is corrected with the correction value.

Abstract: In an apparatus for forming an image on a recording medium by using a group of recording elements including a plurality of recording elements aligned in an array form of at least a single line, a controller controls each recording element so as to be driven plural times for each pixel in accordance with image data and controls the plurality of recording elements in such a way that while one group of the plurality of recording elements is in an operable condition as working elements, neighboring recording elements located next to the working elements are controlled to be in an inoperable condition as non working elements.