US 12,271,128 B2
Image forming apparatus provided with an intermediate transfer belt and meandering prevention pulley
Koju Yamamoto, Osaka (JP); and Takashi Morita, Osaka (JP)
Assigned to KYOCERA Document Solutions Inc., Osaka (JP)
Filed by KYOCERA Document Solutions Inc., Osaka (JP)
Filed on Jan. 2, 2024, as Appl. No. 18/402,156.
Claims priority of application No. 2023-000941 (JP), filed on Jan. 6, 2023.
Prior Publication US 2024/0231260 A1, Jul. 11, 2024
Int. Cl. G03G 15/00 (2006.01); B65G 39/071 (2006.01); G03G 15/16 (2006.01)
CPC G03G 15/1615 (2013.01) [B65G 39/071 (2013.01); G03G 2215/00151 (2013.01); G03G 2215/00168 (2013.01); G03G 2215/1623 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An image forming apparatus, comprising:
an image bearing member which is configured to bear a toner image;
an intermediate transfer belt which is configured to transfer the toner image formed on the image bearing member;
a transfer roller which is installed to face the image bearing member;
a drive roller which is configured to drive the intermediate transfer belt with the intermediate transfer belt stretched around the drive roller;
a driven roller which is configured to support the intermediate transfer belt in a manner that allows the intermediate transfer belt to rotate;
a meandering prevention pully which is arranged to face an end surface of the driven roller in an axial direction of the driven roller; and
a meandering prevention belt
which is arranged on an outside in the axial direction relative to the meandering prevention pully, and
which protrudes from an inner peripheral surface of the intermediate transfer belt, the meandering prevention pully having a guide surface
which faces the meandering prevention belt in the axial direction, and
which is formed to have a surface roughness Ra 0.9 μm or more and a static friction coefficient of 1.4 or more.