Precession scanning system for copier device
AssigneeXerox Corporation
InventorMorton Silverberg
Life of this patent
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Abstract
An imaging system is provided for scanning stationary objects in an object plane and projecting the image onto a moving photoreceptor in a direction opposite the photoreceptor movement. In a preferred embodiment, the scanning illumination elements comprise a dual rate mirror system, a fixed lens and a rotating mirror which reflects the projected image onto a portion of the photoreceptor surface which has been made curved in the exposure zone.
Claims5
A scanning system for projecting light images of a stationary object at an object plane along an optical path onto a curved portion of a photoreceptor moving in a first direction comprising
- scanning illumination means for scanning said object,
- projecting means for transmitting said scanned object images,
- reflecting means positioned between said projecting means and said photoreceptor for directing said transmitted image into a curved exposure zone of said photoreceptor,
- means for introducing said curvature of said photoreceptor in said exposure zone, said curved portion having a radius defined as an arc of a circle equal to the distance between said curved portion and the center of said reflecting means,
- means for rotating said reflecting means so as to reflect said transmitted image along said curved portion in a direction opposite to said first direction.
Dependencies are inferred from the claim text.