If you suspect a patched driver is installed, check:
This is the actual "patch" for the printer's internal chip. Download this if your printer is experiencing hardware bugs or security flaws. Step 4: Run the Installation driver hp laser mfp 137fnw patched
The flashed patch file did not match the machine's base version. If you suspect a patched driver is installed,
HP uses a system called in their drivers and firmware. This means any driver hp laser mfp 137fnw patched that is not officially signed will trigger an error: “Cartridge is low on toner” or “Unauthorized supply detected.” Unofficial patched drivers that claim to disable this are often traps. HP uses a system called in their drivers and firmware
you are using (Windows 11, macOS, etc.)? Is your printer connected via Wi-Fi, Ethernet, or USB ?
is typically done to bypass toner chip requirements, allowing you to use refilled or third-party cartridges without "very low toner" errors. Critical Preparation