Flip the printer around. The full model number is on the silver rating label near the power cord. "bizhub C3350" is not the same as "bizhub 3350." The letter matters.

For devices (which Konica Minolta still supports out of legal obligation): ➡️ Konica Minolta Legacy Driver Archive

Searching "Minolta printer driver download" on Google is a minefield. The top three results are often ad-filled "driver updater" software that will install bloatware or malware.

If you do graphic design, use PostScript . If you do spreadsheets and emails, use PCL6 .