| 摘要 |
A heat transfer test assembly is described in the context of an imaging system of a type wherein sheet material is passed through the imaging system and an image is formed on the sheet material, and the imaging system includes a heat transfer stage wherein heat is transferred to sheet material. The test assembly includes at least one test sheet having thermographic properties, the test sheet having dimensions enabling it to be passed through the imaging system. The test assembly also includes a comparison sheet having indicia representing a thermographic sheet that has been passed through an satisfactorily functioning heat transfer stage of an imaging system. Comparison of a test sheet that has been passed through the imaging system with the comparison sheet provides information about the functioning of the imaging system. The indicia on the comparison sheet can be provided as a graphical representation of a thermographic sheet that has been passed through an satisfactorily functioning heat transfer stage, such as a fusing system of a laser imaging system. The thermographic properties of the test sheet can extend across a substantial portion of the width and length of the test sheet. In an embodiment, the thermographic properties of the test sheet extend across the entire width and length of the test sheet. The thermographic properties of the test sheet can be activated at a temperature of approximately 190° C., and may provide a non-reversible and/or multi-colored image. A method of testing heat transfer within an imaging system is also described.
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