| 摘要 |
An image forming apparatus includes image forming portion for forming an image on a sheet, separating and feeding portion for feeding sheets stacked on sheet supporting portion one by one toward the image forming portion, sheet conveying portion for conveying the sheets fed by the separating and feeding portion, registration rollers of a variable rotating speed disposed upstream of the image forming portion with respect to a sheet conveying direction, and sheet conveyance controlling portion for causing the registration rollers to effect the conveyance of the sheets at a speed higher than the image forming speed in the image forming portion, and thereafter decelerating the registration rollers so as to assume substantially the same speed as the image forming speed at timing earlier than the latest image forming timing in the image forming portion.
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