US 11,726,424 B2
Image forming apparatus
Yasuhiro Suzuki, Nagoya (JP); Saya Minoshima, Gifu (JP); and Shintaro Sakaguchi, Nagoya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Mar. 15, 2021, as Appl. No. 17/201,566.
Claims priority of application No. 2020-051528 (JP), filed on Mar. 23, 2020.
Prior Publication US 2021/0294258 A1, Sep. 23, 2021
Int. Cl. B65H 85/00 (2006.01); G03G 15/00 (2006.01); B65H 5/06 (2006.01); B65H 29/58 (2006.01); G03G 15/23 (2006.01)
CPC G03G 15/6529 (2013.01) [B65H 5/062 (2013.01); B65H 29/58 (2013.01); B65H 85/00 (2013.01); G03G 15/234 (2013.01); B65H 2301/33312 (2013.01); B65H 2404/632 (2013.01); B65H 2801/06 (2013.01); G03G 2215/00438 (2013.01); G03G 2215/00586 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An image forming apparatus capable of turning over a sheet to form images on both sides of the sheet, the image forming apparatus comprising:
an image forming unit configured to form an image on a sheet;
a first path configured to guide the sheet conveyed from the image forming unit toward outside of the image forming apparatus;
a second path branching off from the first path, and configured to guide the sheet conveyed from the image forming unit;
a third path connected to the first path and the second path, and configured to guide the sheet conveyed from the first path or the second path toward the image forming unit again;
a guide member movable between a first position in which to guide the sheet conveyed from the image forming unit into the first path and a second position in which to guide the sheet conveyed from the image forming unit into the second path;
a first roller configured to convey the sheet guided into the first path forward toward the outside of the image forming apparatus, and backward into the third path to turn over the sheet;
a second roller configured to convey the sheet guided into the second path forward, and backward into the third path to turn over the sheet; and
a controller,
wherein when duplex printing is executed successively on three or more sheets, the controller causes a first sheet conveyed from the image forming unit and a second sheet conveyed from the image forming unit to be guided into the first path by positioning the guide member in the first position, and then conveyed into the third path by the first roller, and causes a third and subsequent sheets conveyed from the image forming unit to be guided into the second path by positioning the guide member in the second position, and then conveyed into the third path by the second roller.