Official support and troubleshooting steps for Samsung CLX-3185:
Samsung CLX-3185 Toner Reset / Firmware Fix (Non-Official) Printer Toner Reset Firmware Fix Samsung Clx 3185.rar
If only color cartridges are “empty,” but you need to print black text: Printer Toner Reset Firmware Fix Samsung Clx 3185.rar
To reset the firmware on your Samsung CLX-3185 using the "fix firmware" file, you must enter Download Mode Printer Toner Reset Firmware Fix Samsung Clx 3185.rar
This is where enters the stage.