US 11,163,242 B2 · Image forming apparatus

Abstract

An image forming apparatus includes a first roller having a first portion between tapered portions, which are at each end of the first portion. An outer diameter of each tapered portion decreases with distance from the first portion along a width direction of the first roller. A second roller has a second portion facing the first portion of the first roller and third portions, which are at each end of the second portion. The third portions face the tapered portions of the first roller. A belt of the image forming apparatus has an inner surface contacting the first portion of the first roller and an outer surface forming a nip with the second portion of the second roller. The belt has a protruding portion on the inner surface at each end of the belt in the width direction. The protruding portions face the tapered portions of the first roller.

Claims20

Dependent claims

An image forming apparatus, comprising:

a first roller having a first portion between tapered portions, which are at each end of the first portion in a width direction, an outer diameter of each tapered portion decreasing with distance from the first portion along the width direction;
a second roller having a second portion, facing the first portion of the first roller, and third portions, which are at each end of the second portion in the width direction and facing the tapered portions of the first roller;
and
a belt having an inner surface contacting the first portion of the first roller and an outer surface forming a nip with the second portion of the second roller, the belt having a protruding portion on the inner surface at each end of the belt in the width direction, the protruding portions facing the tapered portions of the first roller.

1 more element

Dependencies are inferred from the claim text.

Image forming apparatus

Life of this patent

Image forming apparatus

Life of this patent

Abstract

Claims20