| 摘要 |
An image recording method capable of allowing an optical scan type electrophotographic recording apparatus to record images with a high resolution. The pulse width of video data adapted to modulate a light beam is varied. An optimum light beam scanning condition is provided which causes the pulse width of binary video data to be controlled to suitably vary the power of an exposing beam such that a latent image potential difference at a boundary between an image portion and a non-image portion is increased to enhance electrostatic contrast, thereby recording images with a high resolution. In an optical scan type electrophotographic recording apparatus of the type using minute light emitting segments as a light source, a latent image is formed with high electrostatic contrast. A light beam condition and a light beam scanning condition are provided which makes the pixel diameters of an image to be developed in the main scan and subscan directions equal to each other. Also, a light beam condition and a light beam scanning condition are provided which confine a ratio between the width of a latent image line substantially parallel to a developing direction and that of a latent image line substantially perpendicular to the developing direction to an optimum range.
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