Supplying refill toner to mounted toner cartridge

1. An image forming apparatus comprising:

an image forming job unit having a toner cartridge mounted in the image forming job unit;

a toner refill unit connectable to refill toner supplies, to supply refill toner to the mounted toner cartridge from the refill toner supplies; and

a controller to control the image forming apparatus to operate according to a toner refill mode based on an operation of the toner refill unit to control,

a function of the image forming apparatus to prevent entry of the toner refill unit into a power save mode, and

an operation of the toner refill unit to start the supply of the refill toner.

2. The image forming apparatus of claim 1 , wherein the toner refill unit includes a connection part, the connection part is provided on a side surface of an exterior of the image forming apparatus,

the refill toner supplies are connectable directly to the toner refill unit, and

the toner refill unit is to supply the refill toner while the toner cartridge is mounted in the image forming job unit.

3. The image forming apparatus of claim 1 , wherein the toner refill unit comprises a refill toner transfer channel to move the refill toner discharged from the refill toner supplies to a toner inlet provided at a side surface of the toner cartridge.

4. The image forming apparatus of claim 3 , wherein the toner refill unit further comprises:

a sensor to sense a connection of the refill toner supplies to the toner refill unit; and

an authentication device communicating with the refill toner supplies of which the physical connection to the toner refill unit is sensed, and authenticate whether the refill toner supplies are genuine products, based on the communication.

5. The image forming apparatus of claim 1 , further comprising a user interface device to display a toner refill progress status when the refill toner supplies are connected to the toner refill unit, and

wherein, when the refill toner supplies are connected to the toner refill unit, the controller receives approval to refill toner from a user via the user interface device and control the image forming apparatus to operate according to the toner refill mode.

6. The image forming apparatus of claim 5 , wherein the controlling the function by the controller further includes at least one type of function from among functions to,

deactivate a function to be provided to a user to prevent the image forming job unit from being operated via the user's manipulation of the user interface device, and

stop an operation of the image forming job unit.

7. The image forming apparatus of claim 6 , wherein the controller is to, when the refill toner supplies are removed from the toner refill unit, control the image forming apparatus to be operated in a normal mode by setting the toner refill unit to a stopped state, canceling the deactivating of the function to be provided to the user, and restarting the stopped image forming job unit.

8. The image forming apparatus of claim 5 , wherein the controller is to receive the approval and control the image forming apparatus according to the toner refill mode to

store toner refill mode start information by receiving information obtained by the toner refill unit when the refilling of the toner starts,

store toner refill progress status information while the refilling of the toner is conducted, and

store toner refill mode end information when the refilling of the toner is completed.

9. The image forming apparatus of claim 8 , wherein the controller is to

generate a toner refill report, based on at least one type of information from among the toner refill mode start information, the toner refill progress status information, and the toner refill mode end information, and

output the toner refill report via the user interface device.

10. The image forming apparatus of claim 1 , wherein, when the refill toner supplies are connected to the toner refill unit while the image forming apparatus is in a power save mode, the controller is to

receive information indicating the connection of the refill toner supplies from a sensor capable of sensing a physical connection of the refill toner supplies in the power save mode, and

switch the power save mode to the toner refill mode.

11. The image forming apparatus of claim 5 , wherein, when the image forming apparatus is powered on while the refill toner supplies are connected to the toner refill unit, the controller is to

check whether the toner refill mode is in progress, based on information regarding the refill toner supplies received from the toner refill unit and toner refill mode records, and information stored in a memory, and

set a toner refill restart point by restoring information regarding a progress status of the toner refill mode.

12. The image forming apparatus of claim 5 , wherein an authentication device of the toner refill unit is to obtain at least one type of information from among information indicating an amount of injected toner measured by the refill toner supplies, an actuation time of a refill toner supply motor of the toner refill unit, and an increase in the amount of injected toner sensed by a residual quantity sensor of the toner cartridge,

wherein the controller is to

calculate a progress rate of the toner refill mode, based on at least one type of information from among the information indicating the amount of injected toner measured by the refill toner supplies, the actuation time of a refill toner supply motor of the toner refill unit, and the increase in the amount of injected toner sensed by a residual quantity sensor of the toner cartridge, and

display the calculated progress rate via the user interface device.

13. The image forming apparatus of claim 5 , wherein, when the refill toner supplies are connected to the toner refill unit while an image forming job is in progress, the controller is to conduct the toner refill mode according to the user's selection via the user interface device to instruct to cancel, temporarily stop, or complete the image forming job which is in progress, or cancel the supply of the refill toner.

14. A method of controlling an image forming apparatus, the method comprising:

connecting refill toner supplies and the image forming apparatus;

supplying, from the connected refill toner supplies, refill toner to a toner cartridge mounted in an image forming job unit; and

controlling the image forming apparatus to operate according to a toner refill mode based on an operation of the toner refill unit to control,

a function of the image forming apparatus to prevent entry of the toner refill unit into a power save mode, and

an operation of the toner refill unit to start the supply of the refill toner.