Vacuum system calibration
AssigneeHewlett-Packard Development Company, L.P.
InventorsAlberto Arredondo, Eduardo Martin, Ricardo Sanchis
Life of this patent
Estimating the term…
Abstract
A method and apparatus for calibrating a vacuum system in a printing device comprising obtaining a reference pressure value for a print zone of the printing device, measuring a calibration pressure value in the print zone of the printing device when the printing device is at an operating location and the vacuum system is in operation, determining an altitude based on the reference pressure value and the calibration pressure value and applying an operating setting to the vacuum system based on the determined altitude.
Claims20
A method for calibrating a vacuum system in a printing device comprising:
- obtaining a reference pressure value for a print zone of the printing device, wherein the reference pressure value is a vacuum pressure generated in the print zone by the vacuum system while operating at a reference altitude;
- measuring a calibration pressure value in the print zone of the printing device when the printing device is at an operating location, wherein the calibration pressure value is the vacuum pressure generated in the print zone by the vacuum system while operating at the operating location;
- determining an altitude based on the reference pressure value and the calibration pressure value;
- and
- applying an operating setting to the vacuum system based on the determined altitude.
An apparatus for use in a printing device comprising:
- a vacuum system coupled to a print zone of the printing device comprising:
- a vacuum sensor to measure pressure in the print zone of the printing device;
- a processor;
- and
- a memory comprising program code that, when executed on the processor, performs the operations of:
- obtaining a reference pressure value, wherein the reference pressure value is a vacuum pressure generated in the print zone by the vacuum system while operating at a reference altitude;
- measuring a calibration pressure value in the print zone of the printing device using the vacuum sensor, wherein the calibration pressure value is the vacuum pressure generated in the print zone by the vacuum system when the printing device is at an operating location and the vacuum system is in operation;
- determining an altitude of a printing device based on the reference pressure value and the calibration pressure value;
- and
- applying an operating setting to the vacuum system based on the determined altitude.
A method for calibrating a vacuum system in a printing device comprising:
- obtaining a reference pressure value for a print zone of the printing device wherein the reference pressure value is a vacuum pressure generated in the print zone by the vacuum system while operating at a reference altitude;
- measuring a calibration pressure value in the print zone of the printing device when the printing device is at an operating location, wherein the calibration pressure value is the vacuum pressure generated in the print zone by the vacuum system while operating at the operating location;
- determining an altitude at the operating location based on the reference pressure value and the calibration pressure value;
- and
- calibrating the vacuum system based on the altitude to produce a desired level of vacuum.
Dependencies are inferred from the claim text.