Printer roller identification
OwnerHenry W. Sang JR.inventor
Life of this patent
Estimating the term…
Abstract
A printer system including one or more printer rollers is capable of imprinting an identifiable texturing on print media. The identifiable texturing can be used to match print media from the printer system with the printer system. The printer system can imprint identifiable texturing that is not visible to the unaided eye. Therefore, a user of the printer system is unaware that the print medium can be matched with the printer system. The imprinting process is a relatively simple process in which the surface of the print medium is mechanically deformed. Therefore, expensive chemical analysis is not required to match the print medium with the printer system.
Claims23
A printer roller for use in a printer system comprising:
- a roller having a surface with a predetermined pattern of at least one of indentations and projections formed therein.
A printer roller for use in a printer system comprising:
- a roller having a surface with a random pattern of at least one of indentations and projections formed therein.
A method for making a printer roller having a patterned surface, comprising:
- forming a predetermined pattern on a surface of a stock printer roller, the predetermined pattern being capable of imprinting an identifiable texturing on a print medium.
A method for making a printer roller having a patterned surface, comprising:
- forming a random pattern on a surface of a stock printer roller, the random pattern being capable of imprinting an identifiable texturing on a print medium.
A method for imprinting identifiable texturing on a print medium, comprising:
- advancing the print medium through a printer system having a printer roller with a patterned surface;
- and
- imprinting a predetermined pattern on the print medium.
A method for imprinting identifiable texturing on a print medium, comprising:
- advancing the print medium through a printer system having a printer roller with a patterned surface;
- and
- imprinting a random pattern on the print medium.
A method for identifying texturing on a print medium, comprising:
- profiling a textured surface of the print medium;
- and
- generating a topographic map of the textured surface.
A method for identifying texturing on a print medium, comprising:
- projecting light onto a textured surface of the print medium, wherein the light is projected at near glancing incident angles from several directions, and wherein the light casts shadows in depressions formed in the textured surface;
- detecting a length of the shadows for the directions;
- plotting the lengths of the shadows for the directions;
- and
- generating a topographic map of the textured surface.
Dependencies are inferred from the claim text.