Once your Samsung SCX4623F is working again, implement these safeguards:

Go to Settings > Devices > Printers & Scanners and remove the Samsung printer.

The Samsung SCX-4623F unit exhibited a persistent message on the LCD panel. Diagnostic verification confirmed the presence of corrupted data within the device’s NAND flash memory or firmware sector. The error is non-transient (does not clear with power cycling) and prevents all core functions (printing, copying, scanning).

Select (instead of "immediately"). This ensures the entire, uncorrupted data package is ready before the printer starts.

When you see follow these golden rules: