Toner case including projection or recess to identify color of toner stored therein and image forming apparatus including the same, toner kit including toner case and packaging box

1. A toner case comprising:

a case main body storing a toner; and

a cover covering a face of the case main body at one end side in a longitudinal direction of the case main body,

wherein an inside projection or an inside recess is provided on an inner face of the cover at a position to be touchable from an outside, and

a number of the inside projection or the inside recess is determined based on a color of the toner stored in the case main body,

wherein an outside projection or an outside recess is provided on an outer face of the cover at a position corresponding to the inside projection or the inside recess, and

a number of the outside projection or the outside recess is identical to the number of the inside projection or the inside recess.

2. The toner case according to claim 1 ,

wherein a position of the outside projection or the outside recess in a width direction of the case main body is overlapped with a position of the inside projection or the inside recess in the width direction of the case main body.

3. The toner case according to claim 1 ,

wherein the inside projection or the inside recess extends along the longitudinal direction of the case main body, and is curved in an arc shape.

4. An image forming apparatus comprising:

the toner case according to claim 1 ; and

an attachment part to which the toner case is attached,

wherein the attachment part includes an attachment part side projection or an attachment part side recess at a position to be touchable from an outside, and

a number of the attachment part side projection or the attachment part side recess is identical to the number of the inside projection or the inside recess of the toner case attached to the attachment part.

5. The image forming apparatus according to claim 4 , further comprising:

a controller determining whether the toner stored in the case main body is in an empty state or not; and

a voice guide part outputting a voice message including the color of the toner in the empty state and the number of the inside projection or the inside recess of the toner case where the toner stored in the case main body is in the empty state when the controller determines that the toner stored in the case main body is in the empty state.

6. An image forming apparatus comprising:

the toner case according to claim 1 ; and

an attachment part to which the toner case is attached,

wherein the outside projection is provided on the outer face of the cover,

the attachment part includes an attachment part side recess at a position to be touchable from an outside,

when a color of the toner case is identical to a color of the attachment part, the outside projection is engaged with the attachment part side recess and the toner case is allowed to be attached to the attachment part, and

when the color of the toner case is different from the color of the attachment part, the outside projection is not engaged with the attachment part side recess and the toner case is prohibited from being attached to the attachment part.

7. The image forming apparatus according to claim 6 ,

wherein a position of the outside projection is different depending on a destination of the toner case,

a position of the attachment part side recess is different depending on a destination of an apparatus main body at which the attachment part is provided,

when the destination of the toner case is identical to the destination of the apparatus main body, the outside projection is engaged with the attachment part side recess and the toner case is allowed to be attached to the attachment part, and

when the destination of the toner case is different from the destination of the apparatus main body, the outside projection is not engaged with the attachment part side recess and the toner case is prohibited from being attached to the attachment part.

8. A toner kit comprising:

the toner case according to claim 1 ; and

a packaging box storing the toner case.

9. An image forming apparatus comprising:

the toner kit according to claim 8 ; and

an attachment part to which the toner case is attached,

wherein the attachment part includes an attachment part side projection or an attachment part side recess at a position to be touchable from an outside, and

a number of the attachment part side projection or the attachment part side recess is identical to the number of the inside projection or the inside recess of the toner case attached to the attachment part.

10. A toner case set comprising a plurality of toner cases,

wherein each of the toner cases is the toner case according to claim 1 .

11. A toner case comprising:

a case main body storing a toner; and

a cover covering a face of the case main body at one end side in a longitudinal direction of the case main body,

wherein an inside projection or an inside recess is provided on an inner face of the cover at a position to be touchable from an outside, and

a number of the inside projection or the inside recess is determined based on a color of the toner stored in the case main body,

wherein the cover includes a handle extending along the longitudinal direction of the case main body, and

the inside projection or the inside recess is provided on an inner face of the handle.

12. The toner case according to claim 11 ,

wherein the handle is formed in a rectangular tubular shape, and

the inside projection or the inside recess is provided on an upper portion of the inner face of the handle.

13. A toner case set comprising a plurality of toner cases,

wherein each of the toner cases is the toner case according to claim 11 .

14. A toner kit comprising:

the toner case according to claim 11 ; and

a packaging box storing the toner case.