Image forming apparatus and controlling method thereof

1. An image forming apparatus comprising:

an image forming unit configured to form an image on a printing medium; and

a processor configured to perform user authentication and, upon performing the user authentication, determine whether or not an image stabilization process should be performed in the image forming unit, wherein

the processor instructs the image forming unit to perform the image stabilization process according to a result of the user authentication.

2. The apparatus according to claim 1 , further comprising:

a storage unit in which identification information of users are stored in association with information indicating whether or not the image stabilization process is to be performed,

wherein the processor determines whether or not the image stabilization process should be performed in the image forming unit with reference to the information stored in the storage unit.

3. The apparatus according to claim 2 , wherein

if the authenticated user is associated with information indicating that the image stabilization process is to be performed, the processor instructs the image forming unit to perform the image stabilization process prior to performing any print job for the authenticated user.

4. The apparatus according to claim 2 , wherein

if the authenticated user is associated with information indicating that the image stabilization process is not to be performed, the processor does not instruct the image forming unit to perform the image stabilization process and a print job for the authenticated user is performed without first performing the image stabilization process in the image forming unit.

5. The apparatus according to claim 1 , further comprising:

a storage unit in which identification information of users are stored in association with a processing history which indicates a history of performing processes that require the image stabilization process and performing processes that do not require the image stabilization process,

wherein the processor determines whether or not the image stabilization process should be performed in the image processing unit with reference to the processing history stored in the storage unit.

6. The apparatus according to claim 5 , wherein

the processing history indicates a frequency of performing processes that require the image stabilization process, and

if the authenticated user is associated with a frequency higher than a threshold frequency, the processor instructs the image forming unit to perform the image stabilization process prior to performing any print job for the authenticated user, and

if the authenticated user is associated with a frequency lower than the threshold frequency, the processor does not instruct the image forming unit to perform the image stabilization process and a print job for the authenticated user is performed without first performing the image stabilization process in the image forming unit.

7. The apparatus according to claim 1 , wherein

the authenticated user is an individual or a group to which the individual belongs.

8. The apparatus according to claim 1 , wherein

print data for the authenticated user that is to be printed using the image forming unit is transmitted to the image forming apparatus prior to the user authentication, and

the processor is configured to determine whether or not to execute a position adjustment process according to the result of the user authentication, if the print data instructs printing with a plurality of colors.

9. The apparatus according to claim 1 , wherein the processor performs user authentication based on a physical feature of the authenticated user.

10. The apparatus according to claim 9 , wherein the processor performs user authentication based on a facial feature of the authenticated user.

11. A method of controlling an image forming apparatus having an image forming unit configured to form an image on a printing medium, the method comprising:

performing user authentication;

determining whether or not an image stabilization process should be performed in the image forming unit according to a result of the user authentication; and

instructing the image forming unit to perform the image stabilization process according to a result of the determination.

12. The method according to claim 11 , wherein

the image forming apparatus further comprises a storage unit in which identification information of users are stored in association with information indicating whether or not the image stabilization process is to be performed, and

the method further comprises determining whether or not the image stabilization process should be performed in the image forming unit with reference to the information stored in the storage unit.

13. The method according to claim 12 , further comprising:

if the authenticated user is associated with information indicating that the image stabilization process is to be performed, instructing the image forming unit to perform the image stabilization process prior to performing any print job for the authenticated user.

14. The method according to claim 12 , further comprising:

if the authenticated user is associated with information indicating that the image stabilization process is not to be performed, not instructing the image forming unit to perform the image stabilization process and a print job for the authenticated user is performed without first performing the image stabilization process in the image forming unit.

15. The method according to claim 11 , wherein

the image forming apparatus further comprises a storage unit in which identification information of users are stored in association with a processing history which indicates a history of performing processes that require the image stabilization process and performing processes that do not require the image stabilization process, and

the method further comprises determining whether or not the image stabilization process should be performed in the image processing unit with reference to the processing history stored in the storage unit.

16. The method according to claim 15 , wherein the processing history indicates a frequency of performing processes that require the image stabilization process, and the method further comprises:

if the authenticated user is associated with a frequency higher than a threshold frequency, instructing the image forming unit to perform the image stabilization process prior to performing any print job for the authenticated user, and

if the authenticated user is associated with a frequency lower than the threshold frequency, not instructing the image forming unit to perform the image stabilization process and performing a print job for the authenticated user without first performing the image stabilization process in the image forming unit.

17. The method according to claim 11 , wherein

the authenticated user is an individual or a group to which the individual belongs.

18. The method according to claim 11 , wherein

print data for the authenticated user that is to be printed using the image forming unit is transmitted to the image forming apparatus prior to the user authentication, and

the method further comprises: determining whether or not to execute a position adjustment process according to the result of the user authentication, if the print data instructs printing with a plurality of colors.

19. The method according to claim 11 , further comprising performing user authentication based on a physical feature of the authenticated user.

20. The method according to claim 19 , further comprising performing user authentication based on a facial feature of the authenticated user.