Patent ID: 8537380

Claim:
An image forming apparatus comprising: a forming apparatus configured to perform an image forming function for forming an image; a processor, and a memory storing computer readable instructions that, when executed by the processor, cause the image forming apparatus to: restrict usage of the image forming function based on presence or absence of usage authorization for a color printing function of the image forming function of the forming apparatus; execute an image quality adjusting process to improve a quality of the formed image, the image quality adjusting process comprising measuring at least one of deviation in respective colors of image formed positions and deviation in density of the respective formed colors, and correcting the deviations; inhibit the executing of the image quality adjusting process in response to a determination of the presence or absence of the usage authorization for the color printing function the image forming function, the presence of the usage authorization for the color printing function the image forming function inhibiting the executing; and generate an execution request of the image quality adjusting process when a predetermined condition is satisfied, wherein, when generating the execution request of the image quality adjusting process, execute the image quality adjusting process when a user having the usage authorization for the image forming function exists; and inhibit executing the image quality adjusting process when no user having the usage authorization for the color printing function of the image forming function exists, even if the execution request exists.