Back to results
US 2006/0139698 A1Published application
Image forming device having a ground-tint detection unit
AssigneeRicoh Company, Ltd.
InventorsTakeshi Kowada, Shiho Toyonori, Nobuaki Tomidokoro, Tsuyoshi Endoh
Life of this patent
Estimating the term…
Abstract
In an image forming device, a ground-tint detection unit detects a ground-tint pattern in an original image based on image data output from an image reader unit. An image invalidation unit outputs a processed image data that makes the image data of the original image illegible, when the ground-tint pattern in the original image is detected. A resolution setting unit allows a resolution of the image reader unit to be higher than a minimum resolution needed for detection of a ground-tint pattern and stored in a memory unit.
Claims8
An image forming device comprising:
- an image reader unit reading an original image to output image data of the original image;
- a ground-tint detection unit detecting a ground-tint pattern in the original image based on the image data output from the image reader unit, the ground-tint pattern being provided to inhibit outputting of the image data of the original image;
- a memory unit in which a minimum resolution that is needed for detection of a ground-tint pattern by the detection unit is stored;
- an image invalidation unit outputting a processed image data that makes the image data of the original image illegible, when the ground-tint pattern in the original image is detected;
- and
- a resolution setting unit storing the minimum resolution into the memory unit and allowing a resolution of the image reader unit at which the original image is read, to be higher than the minimum resolution stored in the memory unit.
3 more elements
Dependencies are inferred from the claim text.