EP-4741939-A1 - RECORDING MEDIUM TRANSPORT DEVICE AND IMAGE FORMING APPARATUS

EP4741939A1EP 4741939 A1EP4741939 A1EP 4741939A1EP-4741939-A1

Abstract

A recording medium transport device includes a belt member that performs circulatory movement and that transports a recording medium attached to an outer peripheral surface of the belt member, a protruding portion that protrudes from the outer peripheral surface of the belt member, that is provided in a linear shape, and that is disposed in a state of being inclined with respect to a movement direction of the belt member, and a removing member that is disposed in contact with the outer peripheral surface of the belt member and that removes an attachment attached to the outer peripheral surface.

Inventors

NAKAJIMA, KOHEI
MIYOSHI, NORIYUKI
TOMITA, YUHEI
SHINOZAKI, SEIGO

Assignees

FUJIFILM Business Innovation Corp.

Dates

Publication Date: 20260513
Application Date: 20250424

Claims (8)

A recording medium transport device comprising: a belt member that performs circulatory movement and that transports a recording medium attached to an outer peripheral surface of the belt member; a protruding portion that protrudes from the outer peripheral surface of the belt member, that is provided in a linear shape, and that is disposed in a state of being inclined with respect to a movement direction of the belt member; and a removing member that is disposed in contact with the outer peripheral surface of the belt member and that removes an attachment attached to the outer peripheral surface.
The recording medium transport device according to claim 1, wherein a heating device that heats the recording medium is provided on a downstream side or an upstream side of the belt member in a transport direction of the recording medium for the belt member, and the removing member comes into contact with a portion of the belt member, which is positioned on an opposite side to a heating device side.
The recording medium transport device according to claim 2, wherein the heating device is provided on the downstream side of the belt member in the transport direction of the recording medium for the belt member, on an inside of the belt member, provided are a drive rotating member that rotates and that applies, to the belt member, a drive force for moving the belt member, and a driven rotating member that is disposed on the upstream side of the drive rotating member in the transport direction of the recording medium and that rotates by receiving a force from the belt member and being driven in accordance with the belt member, and the removing member is pressed against the driven rotating member via the belt member.
The recording medium transport device according to any one of claims 1 to 3, wherein a second protruding portion that is different from a first protruding portion which is the protruding portion disposed in an inclined state, that is provided in a linear shape, and that has an inclination angle with respect to the movement direction, which is different from an inclination angle of the first protruding portion, is further provided.
The recording medium transport device according to claim 4, wherein a plurality of first protruding portions are provided and are provided to extend toward a common direction, a plurality of the second protruding portions are provided and are provided to extend toward a common direction, which is a direction different from an extending direction of the first protruding portion, and as the plurality of first protruding portions and the plurality of second protruding portions, which have extending directions different from each other, are provided, protruding portions are provided in a lattice shape on the outer peripheral surface of the belt member.
The recording medium transport device according to claim 4 or 5, wherein the first protruding portion is inclined to approach one end portion side in a width direction of the belt member toward a downstream side in a transport direction of the recording medium, and the second protruding portion is inclined to approach the other end portion side in the width direction of the belt member toward the downstream side in the transport direction of the recording medium.
The recording medium transport device according to any one of claims 1 to 6, wherein a plurality of protruding portions disposed in a state of being inclined with respect to the movement direction are provided and are disposed in a lattice shape, a hole portion for passing air from an outer peripheral surface side toward an inner peripheral surface side of the belt member is provided in the belt member, and the hole portion is surrounded by protruding portions positioned around the hole portion, among the plurality of protruding portions disposed in the lattice shape.
An image forming apparatus comprising: an image forming portion that forms an image on a recording medium; a heating device that heats the recording medium on which the image is formed by the image forming portion; and a recording medium transport device that transports the recording medium on which the image is formed by the image forming portion or that transports the recording medium which has passed through the heating device, wherein the recording medium transport device has a configuration of the recording medium transport device according to any one of claims 1 to 7.

Description

BACKGROUND OF THE INVENTION (i) Field of the Invention The present invention relates to a recording medium transport device and an image forming apparatus. (ii) Description of Related Art JP2002-137840A discloses a configuration where a belt body is provided with a through-hole that penetrates the belt body in a thickness direction and a protrusion portion that protrudes in the thickness direction to a belt transport surface side. SUMMARY OF THE INVENTION A contamination is attached to a belt member that transports a recording medium. Accordingly, cleaning of a surface of the belt member is required. Herein, in the cleaning of the surface of the belt member, usually, cleaning over the entire surface is required. In the cleaning over the entire surface of the belt member, a location where cleaning is not performed is likely to occur, and reliability of cleaning is likely to be reduced. An object of the present invention is to increase reliability of cleaning a belt member used in transporting a recording medium compared to a configuration where a protruding portion is not provided on a surface of the belt member used in transporting the recording medium. According to a first aspect of the present disclosure, there is provided a recording medium transport device including a belt member that performs circulatory movement and that transports a recording medium attached to an outer peripheral surface of the belt member, a protruding portion that protrudes from the outer peripheral surface of the belt member, that is provided in a linear shape, and that is disposed in a state of being inclined with respect to a movement direction of the belt member, and a removing member that is disposed in contact with the outer peripheral surface of the belt member and that removes an attachment attached to the outer peripheral surface. According to a second aspect of the present disclosure, in the recording medium transport device according to the first aspect, a heating device that heats the recording medium may be provided on a downstream side or an upstream side of the belt member in a transport direction of the recording medium for the belt member, and the removing member may come into contact with a portion of the belt member, which is positioned on an opposite side to a heating device side. According to a third aspect of the present disclosure, in the recording medium transport device according to the second aspect, the heating device may be provided on the downstream side of the belt member in the transport direction of the recording medium for the belt member, a drive rotating member that rotates and that applies, to the belt member, a drive force for moving the belt member and a driven rotating member that is disposed on the upstream side of the drive rotating member in the transport direction of the recording medium and that rotates by receiving a force from the belt member and being driven in accordance with the belt member may be provided on an inside of the belt member, and the removing member may be pressed against the driven rotating member via the belt member. According to a fourth aspect of the present disclosure, in the recording medium transport device according to any one of the first aspect to the third aspect, a second protruding portion that is different from a first protruding portion which is the protruding portion disposed in an inclined state, that is provided in a linear shape, and that has an inclination angle with respect to the movement direction, which is different from an inclination angle of the first protruding portion, may be further provided. According to a fifth aspect of the present disclosure, in the recording medium transport device according to the fourth aspect, a plurality of first protruding portions may be provided and may be provided to extend toward a common direction, a plurality of the second protruding portions may be provided and may be provided to extend toward a common direction, which is a direction different from an extending direction of the first protruding portion, and as the plurality of first protruding portions and the plurality of second protruding portions, which have extending directions different from each other, are provided, protruding portions may be provided in a lattice shape on the outer peripheral surface of the belt member. According to a sixth aspect of the present disclosure, in the recording medium transport device according to the fourth aspect or the fifth aspect, the first protruding portion may be inclined to approach one end portion side in a width direction of the belt member toward a downstream side in a transport direction of the recording medium, and the second protruding portion may be inclined to approach the other end portion side in the width direction of the belt member toward the downstream side in the transport direction of the recording medium. According to a seventh aspect of the present disclosure, in the recording medium transport