Patent ID: 9128438
Filing Date: 2015-09-08
Classification: B65H,G01G,G03G,G06K,H04N

Abstract:
1. In an imaging device for forming an image on a media sheet moveable along a media path therein, a method for determining a media weight, the method comprising: feeding a media sheet into a nip formed between a pair of feed rolls positioned along the media path; positioning a first translateable contact member at a first distance from the nip path, the first translatable contact member being positioned to provide, when translated, a force component normal to the media path of the imaging device; positioning an edge of the media sheet beyond the position of the first translateable contact member at a second distance from the nip that is greater than the first distance; translating the first translateable contact member from a home position thereof a first travel distance into contact with the media sheet; determining an amount of travel energy used to translate the first translateable contact member the first travel distance; returning the first translateable contact member to the home position thereof; determining the amount of return energy used to return the first translateable contact member to the home position thereof; determining an energy difference between the amounts of travel energy and return energy for the first translateable contact member; and, selecting, based on the energy difference for the first translateable contact member, a media weight.