You receive that error because your installed drivers are not compatible with the MFP bizhub C450 printer. In order to fix the problem, access the Konica Minolta Download Center, select your region, identify your printer model, expand the Driver list, select your operating system and download and install the latest drivers using the 
icon. If you have problems, I recommend you contact the support team using +49-511-74040 phone number or [email protected] email address.
