Manually perform four adjustment operations for Gamma Automatic Adj., Color Regist. Auto Adj., Toner Refresh Mode, and Belt Refresh Mode.
For details about Gamma Automatic Adjustment, refer to [Gamma Automatic Adj.].
Follow the procedure on Displaying the [Administrator Setting Menu] Screen to display the Administrator Setting Menu screen.
Press System Setting on the Administrator Setting Menu screen, and then press Expert Adjustment and Execute Adjust Operation in sequence.
For details about subsequent operations, refer to step 3 and after in [Execute Adjust Operation].