Image forming agent storage unit, method for filling image forming agent storage unit with image forming agent, and image forming apparatus

1. An image forming agent storage unit comprising:

a body portion that exists to extend in a direction in which the image forming agent storage unit is mounted in an image forming apparatus;

a grip portion that is disposed on an operator's side of the body portion in the direction in which the image forming agent storage unit is mounted in the image forming apparatus, so that the grip portion can be gripped by a hand; and

a movement preventing member that is disposed in a top portion of the grip portion,

wherein the movement preventing member is caught on the image forming apparatus, and

the movement preventing member prevents the image forming agent storage unit mounted in the image forming apparatus from moving in a direction in which the image forming agent storage unit is pulled out.

2. The image forming agent storage unit according to claim 1 ,

wherein the movement preventing member includes:

an extension portion that is elastically deformable; and

a hook portion that is hooked on the image forming apparatus, and

wherein the hook portion includes:

a slope that abuts against the image forming apparatus to push the hook portion downward when the body portion is pulled out from the image forming apparatus; and

a pulling-out preventing portion that is disposed in an upper portion of the slope, and that abuts against the image forming apparatus to prevent the body portion from moving in the direction in which the body portion is pulled out.

3. The image forming agent storage unit according to claim 1 ,

wherein the movement preventing member includes:

an extension portion that is elastically deformable, a root portion of the extension portion being coupled with the grip portion; and

a hook portion that is hooked on the image forming apparatus, the hook portion being formed on a tip portion of the extension portion, and

wherein the hook portion includes:

a hook surface that is hooked on the image forming apparatus when the body portion moves in the direction in which the body portion is pulled out; and

a slope that is provided between the hook surface and the extension portion, and that is allowed to come into contact with the image forming apparatus while pulling out the body portion from the image forming apparatus,

wherein, when the slope comes into contact with the image forming apparatus while pulling out the body portion from the image forming apparatus, the slope inclines the hook surface by elastically deforming the extension portion.

4. A method for filling an image forming agent storage unit according to claim 1 with an image forming agent,

wherein the image forming agent storage unit further includes:

a sealed opening that is provided in an end surface on an operator's side of the body portion in the direction in which the image forming agent storage unit is mounted in the image forming apparatus,

the method comprising:

opening the sealed opening to expose the opening; and

putting the image forming agent into the body portion through the exposed opening.

5. An image forming apparatus comprising:

an image forming agent storage unit according to claim 1 ; and

a developing unit to which an image forming agent is supplied from the image forming agent storage unit.