US 12,332,586 B2
Transfer device and image forming apparatus
Toshiaki Baba, Kanagawa (JP); Yoko Miyamoto, Kanagawa (JP); and Tomohiro Wada, Kanagawa (JP)
Assigned to FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed by FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed on Feb. 5, 2024, as Appl. No. 18/432,648.
Claims priority of application No. 2023-130496 (JP), filed on Aug. 9, 2023.
Prior Publication US 2025/0053120 A1, Feb. 13, 2025
Int. Cl. G03G 15/01 (2006.01); G03G 15/16 (2006.01)
CPC G03G 15/1615 (2013.01) [G03G 2215/1623 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A transfer device comprising:
an endless transfer belt that circulates and receives an image;
one image carrier that carries an image and is in contact with an outer circumferential surface of the transfer belt from above;
another image carrier that carries an image and is in contact with the outer circumferential surface of the transfer belt from below;
one transfer roller that holds the transfer belt with respect to the one image carrier to transfer the image carried on the one image carrier to the transfer belt, the one transfer roller including one cylindrical roller part; and
another transfer roller that holds the transfer belt with respect to the other image carrier to transfer the image carried on the other image carrier to the transfer belt, the other transfer roller including another cylindrical roller part,
wherein the one roller part and the other roller part protrude at central portions thereof in an axial direction with respect to ends thereof in the axial direction, and
the amount of protrusion at the central portion of the other roller part is smaller than the amount of protrusion at the central portion of the one roller part.