Micropositioned laser source for raster output scanners
First Claim
Patent Images
1. A raster output scanner for forming an image, comprising:
- a substrate;
a light emitting apparatus attached to the substrate that emits at least one light beam from an apparent source location;
a positioning device within the light emitting apparatus for moving the apparent source location, wherein the apparent source location moves on the substrate with reduced static friction; and
an optical system which directs the at least one light beam onto at least one image receiving location.
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Abstract
In a raster output scanner (ROS) of a xerographic printing device, the location of an apparent source of the light beam is adjusted within a light emitting apparatus to enable spot position control anywhere along a scanline to insure subline registration of an image. This is accomplished by placing the apparent source location of the light emitting apparatus on a movable plate. The apparent source is located at the position from which a light beam is emitted from an output end of a laser source or waveguide connected to the laser source. The movable plate is adjusted by actuators which may be comb drives, thermal bimorphs or piezoelectric drive mechanisms.
22 Citations
21 Claims
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1. A raster output scanner for forming an image, comprising:
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a substrate; a light emitting apparatus attached to the substrate that emits at least one light beam from an apparent source location; a positioning device within the light emitting apparatus for moving the apparent source location, wherein the apparent source location moves on the substrate with reduced static friction; and an optical system which directs the at least one light beam onto at least one image receiving location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of forming an image with a raster output scanner, comprising:
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emitting at least one light beam from an apparent source location of a light emitting apparatus connected to a substrate; moving the apparent source location with a positioning device within the light emitting apparatus in at least one of a sagittal, tangential and axial direction on the substrate with minimal friction therebetween; and directing the at least one light beam onto at least one image receiving location with an optical system. - View Dependent Claims (21)
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Specification