| CPC B65H 5/062 (2013.01) [B65H 5/36 (2013.01); B65H 2403/51 (2013.01)] | 10 Claims |
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1. An image forming apparatus comprising:
an image forming portion configured to form an image on a sheet;
a first conveyance path through which the sheet is conveyed toward the image forming portion;
a second conveyance path through which the sheet, with an image formed by the image forming portion on a first surface thereof, is conveyed again toward the first conveyance path-se as to form an image on a second surface opposite to the first surface by the image forming portion;
a curved conveyance path that is curved and configured to be continuous with the second conveyance path and merge with the first conveyance path;
a plurality of conveying roller pairs, including a first roller pair and a second roller pair, configured to convey the sheet, wherein:
the first roller pair arranged along the second conveyance path and includes a nip portion; and
the second roller pair is disposed along the curved conveyance path and is adjacent to the first roller pair in a sheet conveyance direction;
an inner guide; and
an outer guide opposing the inner guide, constituting at least part of the curved conveyance path between the first roller pair and the second roller pair together with the inner guide, and provided on an outer side in a curving direction of the curved conveyance path,
wherein the outer guide is:
movable between a first position and a second position that is farther away from the inner guide than the first position; and
held in the first position until a trailing end of the sheet conveyed by the second roller pair passes through the nip portion of the first roller pair; and
an urging portion configured to urge the outer guide toward the first portion,
wherein a nip line of the first roller pair and a nip line of the second roller pair intersect with each other, and
wherein the outer guide moves from the first position toward the second position against an urging force of the urging portion by being pressed by the trailing end of the sheet conveyed by the second roller pair in a state where the trailing end of the street conveyed by the second roller pair has passed through the first roller pair.
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