Recycling method of toner container

1. A method for recycling a toner container including a casing configured to house a toner, a sleeve protruding from the casing, and one cap that has a brim to be bonded with a distal edge of the sleeve to be closed and a body part inserted into the sleeve, comprising:

cutting the sleeve and the body part to remove an area including an interface between the brim and the distal edge and to form a new distal edge on the sleeve;

removing a part of the one cap remaining in the sleeve;

filling the toner in the casing;

fitting a new cap into the sleeve so that the brim of the new cap comes in contact with the new distal edge; and

bonding the new distal edge and the brim of the new cap.

2. The method according to claim 1 , wherein

the one cap includes a surface for plugging the sleeve; and

the step of removing the area including the interface between the brim part and the leading edge includes forming the new distal edge in a section defined between the brim part and the surface.

3. The method according to claim 1 , wherein the step of removing the area including the interface between the brim and the distal edge includes positioning the distal edge at a position lower than a proximal end of the sleeve that is connected with the casing before cutting out the brim and the distal edge.

4. The method according to claim 1 , wherein the step of removing the area including the interface between the brim part and the distal edge further includes removing a burr adhered to the new distal edge.

5. The method according claim 2 , wherein the step of removing the part of the one cap remaining in the sleeve includes removing the surface.

6. The method according to claim 1 , further comprising;

cleaning the inside of the casing before the step of filling the toner in the casing.

7. The method according to claim 6 , wherein

the step of cleaning the inside of the casing includes:

positioning the distal edge to be lower than a proximal end of the sleeve that is connected with the casing; and

discharging air from the inside of the casing.

8. The method according to claim 1 , wherein

the step of bonding the new distal edge and the brim of the new cap includes:

preparing an ultrasonic wave generator; and

melting at least one of the brim of the new cap and the new distal edge with ultrasonic wave energy from the ultrasonic wave generator.

9. The method according to claim 8 , wherein

the brim includes a protrusion toward the sleeve, and

the step of bonding the new distal edge and the brim of the new cap includes concentrating the energy on the protrusion.

10. A method for recycling a toner container including a casing configured to house a toner, a sleeve protruding from the casing, and one cap, the one cap includes a brim to be bonded with a distal edge of the sleeve to be closed, a surface for plugging the sleeve and a connecting portion extending between the brim and the surface, the method comprising:

removing an area including an interface between the brim and the distal edge to form a new distal edge on the sleeve and forming the new distal edge in a section defined between the brim part and the surface;

removing a part of the one cap remaining in the sleeve, including removing the surface;

filling a toner in the casing;

fitting another cap into the sleeve so that the brim of the another cap comes in contact with the new distal edge; and

bonding the new distal edge and the brim of the another cap, and

the step of removing the surface further includes:

preparing a tool having a first distal end and a second distal end, the tool configured to be inserted into the sleeve;

inserting the tool into the sleeve so that the first distal end and the second distal end come in contact with the connecting portion; and

pulling out the first distal end and the second distal end from the sleeve together with the connecting portion and the surface.

11. A method for recycling a toner container including a casing configured to house a toner, a sleeve protruding from the casing, and one cap with a brim to be bonded with a distal edge of the sleeve to be closed comprising:

removing an area including an interface between the brim and the distal edge to form a new distal edge on the sleeve;

removing a part of the one cap remaining in the sleeve;

cleaning the inside of the casing, the step of cleaning the inside of the casing including positioning the distal edge to be lower than a proximal end of the sleeve that is connected with the casing, preparing a hopper having a first opening configured to receive the sleeve and a second opening below the first opening, connecting a suction unit with the second opening and

activating the suction unit for sucking gas inside the casing and thereby discharging air from the inside of the casing

filling a toner in the casing;

fitting a new cap into the sleeve so that the brim of the new cap comes in contact with the new distal edge; and

bonding the new distal edge and the brim of the new cap.

12. The method according to claim 11 ,

wherein the step of positioning the distal edge to be lower than the proximal end of the sleeve that is connected with the casing further includes preparing a compressor for generating compressed gas, and a supply pipe including a proximal end configured to be connected with the compressor and a distal end disposed in the casing, and wherein

the step of discharging gas from the inside of the casing includes sending compressed gas from the compressor into the casing via the supply pipe.