US 11,794,469 B2
Image forming apparatus
Kei Tanaka, Kanagawa (JP)
Assigned to FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed by FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed on May 5, 2021, as Appl. No. 17/308,312.
Claims priority of application No. 2020-167883 (JP), filed on Oct. 2, 2020.
Prior Publication US 2022/0107595 A1, Apr. 7, 2022
Int. Cl. G03G 15/00 (2006.01); B41F 21/08 (2006.01); B65H 29/04 (2006.01)
CPC B41F 21/08 (2013.01) [B65H 29/044 (2013.01); G03G 2215/0164 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
a rotating body having a recess in an outer peripheral surface thereof;
a sprocket provided coaxially with the rotating body to rotate integrally with the rotating body;
a chain having a plurality of links, the chain being wound around the sprocket to circulate in a circulating direction so as to shift from a rotary movement in which the chain rotates in an arc shape conforming to an outer periphery of the sprocket along with the sprocket, to a linear movement;
a holder fixed to at least one link of the links of the chain, the holder being configured to hold a leading end portion of a recording medium, the holder being configured to transport the recording medium by
performing the rotary movement along with the rotating body and the chain in a state of (i) holding the leading end portion of the recording medium placed on the outer peripheral surface of the rotating body and (ii) being located in the recess, and
then shifting to the linear movement along with the chain; and
an image forming unit configured to form an image on the recording medium placed on the outer peripheral surface of the rotating body, wherein
a holding position where the holder holds the recording medium is arranged downstream of an upstream roller of rollers of a most downstream link in the circulating direction among the at least one link to which the holder is fixed, and
a distance from a most upstream portion of the holding position is to a downstream roller of the rollers of the most downstream link is shorter than a distance of the most upstream portion from the upstream roller.