| 摘要 |
PROBLEM TO BE SOLVED: To prevent variations in the speed of a driving roller and inconsisten cies in the density of toner images in an image-forming device where a recording medium is kept on a transfer belt by means of static electric attraction with the belt being wound around a driving roller and a subordinating roller, and where toner images on a photoconductive body are transferred to the recording medium. SOLUTION: The rotation of the driving motor is transferred to a driving roller 1 through a coupling 19 and the driving roller is made to rotate.
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