US 11,947,285 B2
Image forming apparatus with coated belt pressing member
Ryosuke Tsuruga, Chiba (JP); Manato Kobayashi, Chiba (JP); and Yutaka Kakehi, Chiba (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Oct. 21, 2022, as Appl. No. 17/971,207.
Claims priority of application No. 2021-173543 (JP), filed on Oct. 22, 2021.
Prior Publication US 2023/0130018 A1, Apr. 27, 2023
Int. Cl. G03G 15/16 (2006.01)
CPC G03G 15/161 (2013.01) [G03G 15/1615 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
an image forming portion configured to form a toner image;
a rotatable endless belt onto which the toner image is transferred;
a plurality of stretching rollers including an inner roller and an upstream roller provided upstream of and adjacent to the inner roller with respect to a rotational direction of the belt and configured to stretch the belt;
an outer member provided opposed to the inner roller through the belt and configured to form a transfer portion where the toner image is transferred from the belt onto a recording material in contact with an outer peripheral surface of the belt;
a guiding member configured to guide the recording material to the transfer portion;
a sheet-like pressing member contactable to an inner peripheral surface of the belt on a side upstream of the inner roller and downstream of the upstream roller with respect to the rotational direction of the belt; and
a coating member provided on a surface of the pressing member on a belt side and configured to cover a portion of the surface of the pressing member,
wherein the coating member is disposed on the pressing member so as not to contact the belt and is electrically grounded or electrically conducted to the guiding member, the coating member being formed of a material lower in surface resistivity than the pressing member.