Konica Minolta 7 series color gradation adjustments or calibration

To calibrate color reproduction on a Konica Minolta bizhub 7-Series machine (e.g., C257i, C250i), press the Utility key on the home screen and log into Administrator Settings using your admin credentials. Navigate to System Settings -> Expert Adjustment ->Quality Adjustment -> Stabilizer to clear background density errors first. Next, select Gradation Adjustment, choose your target (such as Copy or Print), and tap Test Pattern to output a color calibration sheet. Place this printed pattern face down on the scanner glass, align it against the registration marks, and tap Scan to automatically recalibrate the color depth and gradient alignment.