Design parameters for a multi-row linear photosensor array
AssigneeXerox Corporation
InventorJoseph P. Taillie
Life of this patent
Estimating the term…
Abstract
In an imaging apparatus, such as used for recording full-color images from a moving sheet, different rows of photosensors are each filtered to record one primary color. Certain specific spacings of adjacent rows of photosensors are particularly useful in operating the apparatus at different commonly-used output speeds.
Claims20
An imaging apparatus for recording an image borne on a sheet moving relative to the imaging apparatus in a process direction, comprising:
- a first row of photosensors and a second row of photosensors, the first row of photosensors and second row of photosensors extending in a direction perpendicular to the process direction, and the first row of photosensors and second row of photosensors being spaced by a line spacing;
- the line spacing being one of 0.0578+/−0.010 mm, 0.0694+/−0.010 mm, 0.0924+/−0.010 mm, and 0.1113+/−0.010 mm;
- when the line spacing is 0.0578+/−0.010 mm, signals are read out from the imaging apparatus at a speed consistent with a resolution of one of 100, 200, 300, 800, 1000 and 1200 lpi.
An imaging apparatus for recording an image borne on a sheet moving relative to the imaging apparatus in a process direction, comprising:
- a first row of photosensors and a second row of photosensors, the first row of photosensors and second row of photosensors extending in a direction perpendicular to the process direction, and the first row of photosensors and second row of photosensors being spaced by a line spacing;
- the line spacing being one of 0.0508+/−0.010 mm, and 0.1016+/−0.010 mm;
- when the line spacing is 0.0508+/−0.010 mm, signals are read out from the imaging apparatus at a speed consistent with a resolution of one of 100, 200, 300, 800 and 1200 lpi.
An imaging apparatus for recording an image borne on a sheet moving relative to the imaging apparatus in a process direction, comprising:
- a first row of photosensors and a second row of photosensors, the first row of photosensors and second row of photosensors extending in a direction perpendicular to the process direction, and the first row of photosensors and second row of photosensors being spaced by a line spacing;
- a third row of photosensors a fourth row of photosensors, the third row of photosensors and fourth row of photosensors extending in the direction perpendicular to the process direction, and the third row of photosensors and fourth row of photosensors being spaced by the line spacing;
- and
- output means for reading out signals from the first row of photosensors and second row of photosensors;
- wherein:
- a) the line spacing is one of 0.0578+/−0.010 mm, 0.0694+/−0.010 mm, 0.0847+/−0.010 mm, 0.0924+/−0.010 mm, and 0.1113+/−0.010 mm, and when the line spacing is 0.0847+/−0.010 mm, the output means reads out signals from the imaging apparatus at a speed consistent with a resolution of one of 100, 200, 800, and 1000 lpi;
- or
- b) the line spacing is one of 0.0694+/−0.010 mm, 0.0762+/−0.010 mm, 0.0889+/−0.010 mm, and 0.1016+/−0.010 mm, and when the line spacing is 0.0381+/−0.010 mm, the output means reads out signals from the imaging apparatus at a speed consistent with a resolution of one of 100, 200, 300, 400, 600, 800, 1000, and 1200 lpi.
Dependencies are inferred from the claim text.