Correction of pulse width accumulator based on the temperature and relative humidity
AssigneeHewlett-Packard Development Company, L.P.
InventorSantiago Rodriguez
Life of this patent
Estimating the term…
Abstract
An amount of toner remaining within a toner cartridge is determined by sensing an environmental factor, determining a pulse width count, and determining a corrected pulse width count based on the pulse width count and the environmental factor. In addition, the amount of toner remaining within the toner cartridge is calculated based on the corrected pulse width count and a predetermined starting amount of toner in the toner cartridge.
Claims23
A method for determining an amount of toner remaining within a toner cartridge, said method comprising:
- sensing an environmental factor;
- determining a pulse width count;
- determining a corrected pulse width count based on said pulse width count and said environmental factor;
- and
- calculating said amount of toner remaining within said toner cartridge based on said corrected pulse width count and a predetermined starting amount of toner in said toner cartridge.
A computer readable medium on which is embedded computer software for performing a method of determining an amount of toner remaining within a toner cartridge, said method comprising:
- sensing an environmental factor;
- determining a pulse width count;
- determining a corrected pulse width count based on said pulse width count and said environmental factor;
- and
- calculating said amount of toner remaining within said toner cartridge based on said corrected pulse width count and a predetermined starting amount of toner in said toner cartridge.
An apparatus for determining an amount of toner remaining within a toner cartridge, said apparatus comprising:
- a processor system configured to receive a sensed environmental factor, determine a pulse width count, and determine a corrected pulse width count based on said pulse width count and said environmental factor, wherein said processor system is further configured to calculate said amount of toner remaining within said toner cartridge based on said corrected pulse width count and a predetermined starting amount of toner in said toner cartridge.
An apparatus for determining an amount of toner remaining within a toner cartridge, said apparatus comprising:
- means for sensing an environmental factor;
- means for determining a pulse width count;
- means for determining a corrected pulse width count based on said pulse width count and said environmental factor;
- and
- means for calculating said amount of toner remaining within said toner cartridge based on said corrected pulse width count and a predetermined starting amount of toner in said toner cartridge.
Dependencies are inferred from the claim text.