Abstract: A contact free vehicle brake failure sensor receives IR emissions from a brake region of a vehicle to determine the temperature of the brake region. A determination of non-functionality of a brake is made based on whether the brake region is near the ambient temperature.

Abstract: The ink compositions of this invention comprise four aqueous component ink compositions including four different water-soluble dyes, namely, water-soluble cyan, magenta, yellow and black dyes. These component ink compositions, when used together, produce a hard copy image having a color gamut that visually more closely corresponds to the color gamut of an image displayed on the color video screen than prior art ink compositions. This specific color gamut is represented by the hereinafter described specific ranges of hue angles in a CIELAB standard chromaticity diagram for each of such component ink compositions. The nature and identity of the component ink compositions are also further described by providing the preferred ranges for each component of the wavelength of maximum absorbance (Lambda max, measured in nm) and for the spectral strength in ml/absorbance unit at that maximum point of absorbance.

Abstract: An ink cartridge 10 includes an ink level sensor 38 having a probe supporting structure, such as platform 174, which projects into a collapsible ink container 16 from an ink container support 18. First and second electrical probes 40, 41 are embedded within the structure, with tip portions 188, 190 of the probes 40, 41 being exposed to provide an electrically conductive path through the ink between the probes. Flat closure surface 176, 178 are provided between the exposed portions of the probes against which the container 16 collapses. When the ink container 16 collapses against these surfaces 176, 178, the resistance between the probes increases, is insensitive to ink conductivity, and indicates that volume of ink within the cartridge is low. The platform 174 is supported by tapered necks 180, 182 projecting into the ink container from the ink container support 18.