Patent ID: 8549764
Filing Date: 2013-10-08
Classification: B41J,G01C,G01F

Abstract:
1. A method of detecting tilting of a container for holding a volume of fluid, the container for consumable use of the fluid in an imaging device and having a housing defining an interior to retain the volume of fluid and at least two pairs of opposed electrodes disposed on opposing sides of the interior, each pair having a capacitance that varies in response to an amount of fluid existing between said each pair of opposed electrodes, a higher said capacitance corresponding to a higher said amount of fluid existing between said each pair of opposed electrodes, comprising: obtaining first and second capacitance values one each from said each pair of opposed electrodes; ascertaining tilt of the housing by determining whether one of the first and second capacitance values increases while the other of the first and second capacitance values decreases over a same time period; and disabling a fluid supply in the imaging device to prevent the fluid from leaking out if a tilt of the housing is said ascertained.