| 摘要 |
The present invention includes: image carriers provided parallel to each other in a transfer area where toner images are transferred to a transfer medium; and transfer rollers, each being associated to a different one of the image carriers, for transferring the toner images carried by the image carriers to the transfer medium, wherein: the transfer rollers are fabricated in a crown shape and so that the crown quantities of the crown shapes of the transfer rollers decrease in stages towards a downstream side along the transport direction of the transfer medium.
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