| 摘要 |
A heat insulation roller of an image forming apparatus of the present invention arranges hollow pipes between a core roller and an outer peripheral roller and obtains a high heat insulating effect though it is light in weight and inexpensive. Further, the core roller and hollow pipes are inserted into the outer peripheral roller before pipe extension, and the outer peripheral roller is extended, and the hollow pipes are uniformly adhered and fixed between the core roller and the outer peripheral roller, and then the ends of the outer peripheral roller and hollow pipes are removed, thus the core roller can be secondarily worked easily.
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