Measuring the thickness of a print media
AssigneeHewlett-Packard Development Company, L.P.
InventorsRaimon CASTELLS DE MONET, David FAUNDEZ BARROSO, David MUNOZ NAVARRO, Marco Ignacio BARBETTA
Life of this patent
Estimating the term…
Abstract
Measuring the thickness of a print media supported by a platen or belt by: moving a measurement bar to a first position to contact a surface of the platen or belt, moving the measurement bar to a second position to contact a surface of the print media when supported by the platen or belt, and determining the spatial difference between the first and second positions such as to measure the thickness of the print media. The measurement bar is arranged to cover a width of the print media when supported by the platen or belt.
Claims15
A system comprising:
- a platen or belt having a surface to support a print media;
- a measurement bar arranged to cover a width of the print media when supported by the platen or belt;
- and
- a measurement unit coupled to the measurement bar such as to:
- move the measurement bar to a first position to contact said surface of the platen or belt, move the measurement bar to a second position to contact a surface of the print media when supported by the platen or belt, and measure a thickness of the print media by determining a spatial difference between the first and second positions.
A printer system comprising:
- a platen or belt having a surface to support a print media;
- a measurement bar arranged to cover a width of the print media when supported by the platen or belt;
- a slider beam arranged in parallel with said surface of the platen or belt;
- a carriage including a printhead, wherein the carriage is movably mounted on the slider beam to allow scanning of the printhead;
- a measurement unit coupled to the measurement bar such as to:
- move the measurement bar to a first position to contact said surface of the platen or belt, move the measurement bar to a second position to contact a surface of the print media when supported by the platen or belt, and measure a thickness of the print media by determining a spatial difference between the first and second positions, wherein the measurement bar has an alignment surface to align the print media along the alignment surface when the measurement bar has been moved to said first position, and wherein the measurement unit is coupled to the measurement bar to move the measurement bar to the surface of the print media when the print media is being moved from the measurement bar towards the printhead for printing.
A method comprising:
- moving a measurement bar to a first position such as to contact a surface of a platen or belt, wherein the surface of the platen or belt is to support a print media, and wherein the measurement bar extends to cover a width of the print media when supported by the platen or belt;
- moving the measurement bar to a second position such as to contact a surface of the print media when supported by the platen or belt;
- and
- measuring a thickness of the print media by determining a spatial difference between the first and second positions.
Dependencies are inferred from the claim text.