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On line fusing system

Image Number 3 for United States Patent #4004127.

An apparatus for fusing toner images onto flexible support material in which the support material is transported in a path past a flash fusing lamp. The path is defined by an outer member and an inner member which guide the sheet past the flash fusing lamp. The inner member is made of a transparent material and the outer member is reflective. Warm air under pressure is used to advance the support material along its path and to crust the toner images facing inwardly toward the lamp to prevent offset and reduce energy requirements of the lamp to permanently fix the images to the support material.

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