Image forming apparatus with light beam control
First Claim
1. An image forming apparatus comprising:
- an image bearing body;
charging means for charging said image bearing body; and
exposing means for exposing said image bearing body charged by said charging means, wherein said exposing means illuminates with a light beam each pixel corresponding to a non-image portion of a pixel matrix having plural rows and plural columns, and wherein, when it is assumed that a width of one pixel in the pixel matrix is A and a distribution width in a half value of a maximum potential value of a potential distribution formed without illumination by the light beam of one pixel is Wv, the following relationship is satisfied;
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Accused Products
Abstract
An object of the present invention is to provide an image forming apparatus that has an image bearing body, charging device for charging the image bearing body, and exposing device for exposing the image bearing body charged by the charging device,
wherein the exposing device illuminates a light beam for each of pixels corresponding to a non-imaged portion of a pixel matrix having plural rows and plural columns, and wherein, when it is assumed that a width of one pixel in the pixel matrix is A and a distribution width in a half value of a maximum potential value of potential distribution formed in OFF of light beam illumination of one pixel is Wv, a following relationship is satisfied:
4 Citations
8 Claims
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1. An image forming apparatus comprising:
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an image bearing body;
charging means for charging said image bearing body; and
exposing means for exposing said image bearing body charged by said charging means, wherein said exposing means illuminates with a light beam each pixel corresponding to a non-image portion of a pixel matrix having plural rows and plural columns, and wherein, when it is assumed that a width of one pixel in the pixel matrix is A and a distribution width in a half value of a maximum potential value of a potential distribution formed without illumination by the light beam of one pixel is Wv, the following relationship is satisfied;
- View Dependent Claims (2, 3)
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4. An image forming apparatus comprising:
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an image bearing body;
charging means for charging said image bearing body; and
exposing means for exposing said image bearing body charged by said charging means, wherein said exposing means illuminates with a light beam each pixel corresponding to a non-image portion of a pixel matrix having plural rows and plural columns, and wherein, when it is assumed that a spot diameter in 1/e2 of a peak light amount of the light beam in light beam illumination of one pixel is We and a distribution width in a half value of a maximum potential value of a potential distribution formed without illumination by the light beam of one pixel is Wv, the following relationship is satisfied;
- View Dependent Claims (5, 6, 7, 8)
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Specification