Sometimes the error is caused by residual configuration data. In such cases, clearing the NVRAM (Non-Volatile RAM) helps.
Open Command Prompt as Administrator.
Drag the ML1640_V1010083.fls file onto the usbprns2.exe icon. FIX ML1640 V1010083.fls
The file V1010083.fls is a . In simple terms, firmware is the operating system of your printer. It tells the hardware how to process print jobs, how to move the paper, and how to communicate with your computer. Sometimes the error is caused by residual configuration data
Since Samsung Printers are now under HP, official downloads are scarce. Reliable sources include: how to move the paper
After it restarts, the "low toner" red light should turn green or stay off, even if you are using an empty chip. Important Notes Chip Removal