Turn the main power while continuing to hold the button until a small black dot appears in the top-right corner of the screen.
Before initiating a reset, back up vital system data to avoid permanent loss. konica minolta bizhub c258 factory reset
Choose a deletion mode (Mode 1 is standard, higher modes are more secure) and press Execute Deletion Konica Minolta Essential Default Credentials Turn the main power while continuing to hold
Method 2: The "System 1/2" Initialization via Service Mode (Deep Reset) konica minolta bizhub c258 factory reset