DOUBLE-SIDED IMAGE FORMING APPARATUS

摘要

PROBLEM TO BE SOLVED: To improve image forming success rate in double-sided image formation which has lower image forming success rate compared to one-side image formation.

SOLUTION: The double-sided image forming apparatus is provided with a paper re-feeding path which can be varied to different lengths in a circulating conveying path and the length of the paper re-feeding path is varied according to the paper size. Furthermore, backside image formation is carried out in a short paper re-feeding path in a final stage of double-sided image formation.

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