Before we dive into the driver nightmare, let’s appreciate the hardware. The Samsung ML2010 was released in the era of macOS X Tiger and Leopard. It was a USB-only printer with no Ethernet or Wi-Fi. It boasted 20 pages per minute, 1200 dpi effective output, and a monthly duty cycle of 5,000 pages. For students and small businesses, it was a tank.
For macOS Catalina (10.15), users have found that downloading the Universal Driver samsung ml2010 driver mac exclusive
A. Try macOS automatic driver install