Separation holding member, cartridge unit, and packaging body

Patent metadata

Field	Value
Publication number	US-2019227482-A1
Application number	US-201916253415-A
Country	US
Kind code	A1
Filing date	Jan 22, 2019
Priority date	Jan 23, 2018
Publication date	Jul 25, 2019
Grant date	—

Abstract

The separation holding member 36 includes a grip portion 36h for detaching the separation holding member 36 from the cartridge B, the grip portion 36h being configured so as to assume a first shape of protruding in a direction of separation from a surface of the cartridge B when the cartridge B mounted with the separation holding member 36 is detached from the apparatus main body A and to assume a second shape in which a gap with the surface of the cartridge B is smaller than in the first shape when the cartridge B mounted with the separation holding member 36 is mounted to the apparatus main body A.

First claim

1 . A separation holding member mounted to a cartridge attachable to and detachable from an apparatus main body of an image forming apparatus, the separation holding member being mounted so as to hold a first frame body which supports an image bearing member and a second frame body which supports a developer bearing member at a relative position where the image bearing member and the developer bearing member do not come into contact with each other, the first frame body and the second frame body being provided in the cartridge,
the separation holding member comprising: a grip portion for detaching the separation holding member from the cartridge, the grip portion being configured so as to assume a first shape of protruding in a direction of separation from a surface of the cartridge when the cartridge mounted with the separation holding member is detached from the apparatus main body, and assume a second shape in which a gap with the surface of the cartridge is smaller than in the first shape when the cartridge mounted with the separation holding member is mounted to the apparatus main body.

2 . The separation holding member according to claim 1 ,
wherein the first shape is an shape in which the grip portion is erected with respect to the surface of the cartridge, and wherein the second shape is an shape in which the grip portion is prostrated with respect to the surface of the cartridge.

3 . The separation holding member according to claim 1 ,
wherein the grip portion has a thin-walled portion and configured so as to change from the first shape to the second shape by an inclined deformation with the thin-walled portion as a base point.

4 . The separation holding member according to claim 1 ,
wherein the grip portion is configured so as to change from the first shape to the second shape by deflection and deformation of the entire grip portion.

5 . The separation holding member according to claim 1 ,
wherein the grip portion changes from the first shape to the second shape by abutting against an abutment portion provided on the apparatus main body when the cartridge mounted with the separation holding member is mounted to the apparatus main body.

6 . The separation holding member according to claim 1 ,
wherein the first frame body and the second frame body are configured so as to be relatively movable to a retracted position that is a relative position where the image bearing member and the developer bearing member do not come into contact with each other, and a development-enabled position that is a relative position where the developer bearing member is capable of developing an electrostatic latent image formed on the image bearing member.

7 . The separation holding member according to claim 6 , further comprising a biasing member which biases the first frame body and the second frame body so as to relatively move the first frame body and the second frame body from the retracted position to the development-enabled position.

8 . The separation holding member according to claim 6 ,
wherein the separation holding member is provided on a side of one end of the first frame body in a rotational axis direction of the image bearing member, the separation holding member further comprising: an inserted portion which is inserted between the first frame body and the second frame body and which holds the relative position of the first frame body and the second frame body to the retracted position; and concave restricted portions between which a protruding portion that protrudes from the first frame body in a direction intersecting the rotational axis direction is arranged in the rotational axis direction.

9 . The separation holding member according to claim 8 , further comprising an attaching portion to be attached to the first frame body,
wherein the restricted portion is positioned between the attaching portion and the inserted portion around the rotational axis.

10 . The separation holding member according to claim 8 , further comprising, when defining the inserted portion as a first inserted portion, a second inserted portion which is inserted between the cartridge and the apparatus main body in a state where the cartridge is mounted to the apparatus main body and which holds the image bearing member and a transfer member provided in the apparatus main body in a state of being separated from a relative position where a developer image formed on the image bearing member can be transferred to a recording material.

11 . The separation holding member according to claim 10 ,
wherein the restricted portion and the second inserted portion are arranged at mutually overlapping positions in the rotational axis direction.

12 . The separation holding member according to claim 8 , further comprising, when defining the inserted portion as a first inserted portion, a third inserted portion which is inserted between the cartridge and the apparatus main body in a state where the cartridge is mounted to the apparatus main body and which holds a communication contact portion provided in the second frame body and a communication unit provided in the apparatus main body in a state of being separated from a relative position where the communication contact portion comes into contact with a contact of the communication unit such that communication with the communication unit can be performed.

13 . A cartridge unit attachable to and detachable from an apparatus main body of an image forming apparatus, the cartridge unit comprising:
a cartridge including
an image bearing member on which an electrostatic latent image is formed,
a developer bearing member which develops the electrostatic latent image formed on the image bearing member with a developer,
a first frame body which supports the image bearing member,
a second frame body which supports the developer bearing member and which is relatively movable with respect to the first frame body,
a biasing member which biases the first frame body and the second frame body so as to relatively move the first frame body and the second frame body from a retracted position where the image bearing member and the developer bearing member do not come into contact with each other to a development-enabled position where the developer bearing member is capable of developing the electrostatic latent image formed on the image bearing member, and
a storage element which is capable of coming into contact with a communication contact portion of a communication unit provided in the apparatus main body and communicating with the communication unit; and
a separation holding member including
a grip portion for detaching the separation holding member from the cartridge, the grip portion being configured so as to
assume a first shape of protruding in a direction of separation from a surface of the cartridge when the cartridge mounted with the separation holding member is detached from the apparatus main body, and
assume a second shape in which a gap with the surface of the cartridge is smaller than in the first shape when the cartridge mounted with the separation holding member is mounted to the apparatus main body.

14 . A packaging body which enables transportation of an image forming apparatus, the packaging body comprising:
a cartridge including
an image bearing member on which an electrostatic latent image is formed,
a developer bearing member which develops the electrostatic latent image formed on the image bearing member with a developer,
a first frame body which supports the image bearing member,
a second frame body which supports the developer bearing member and which is relatively

Assignees

• Canon Kk

Inventors

• Koguchi Kohei
• Iizuka Yoichiro

Classifications

• G03G21/1814 Primary

  Details of parts of process cartridge, e.g. for charging, transfer, cleaning, developing (G03G21/1835 takes precedence) · CPC title

• G03G21/1825 Primary

  Pivotable subunit connection · CPC title

• G03G21/1842

  for guiding and mounting the process cartridge, positioning, alignment, locks (G03G21/1864 and G03G21/1871 take precedence) · CPC title

• G03G21/1647

  Mechanical connection means · CPC title

• G03G2221/1861

  Rotational subunit connection · CPC title