Patent ID: 7963694

Claim:
A toner container, comprising: a housing for storing toner; a message identifying whether the toner container has been exposed to a temperature, wherein the message comprises a first portion that conveys the toner container has not been exposed to the temperature, and a second portion that alters the first portion to convey that the toner container has been exposed to the temperature; and a label for identifying temperature change of the toner container, the label comprising: a material capable of changing properties when exposed to the temperature, wherein the material is positioned to function with the message to identify when the toner container has been exposed to the temperature, wherein the material comprises a first section that is transparent and becomes opaque when exposed to the temperature, and a second section that is opaque and becomes transparent when exposed to the temperature, wherein the first section of the material is positioned to cover the first portion of the message and block the first portion when exposed to the temperature, and wherein the second section of the material is positioned to cover the second portion of the message and reveal the second portion when exposed to the temperature.