After successfully installing the new firmware and verifying that the error light is green, there is a final step and an important safety measure:
Before attempting any modification, you must verify your printer's current baseline. Installing firmware meant for Version 07 onto a Version 08 machine can permanently break ("brick") the formatter board. How to Check Your Current Firmware Version Turn on the printer and load paper.
: Must be V3.00.01.08 (Fixes for higher versions like .09 or .10 require different files).
Once you have the correct fix file (which typically comes as a .hd file along with a utility like usbprns2.exe ), follow this standard procedure:
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Cross-reference the filename of the .hd payload with the exact serial/CRUM information copied from your system report.
A firmware fix—often called a "fix firmware" or "chipless firmware"—modifies the printer’s internal software so it no longer checks the cartridge chip status. This guide explains how the process works, the role of Version 08 (v3.00.01.08), and how to safely apply a firmware modification. Understanding the Need for a Firmware Fix The Toner Chip Problem
: Hold the STOP/CLEAR button for about 3–4 seconds until the LED flashes once.
Once flashed, this custom firmware is permanent. After successfully installing the new firmware and verifying
Power Loss: If the power goes out during the flash, the printer may die.
Extract the downloaded fix archive on your computer. You will typically see two main files: usbprns2.exe (The firmware uploading utility)
This fix is a permanent software solution to a hardware limitation.
By flashing your multifunction printer (MFP) with a modified "fix firmware," you permanently remove the "Toner Exhausted" block. This allows you to refill your existing cartridges or install inexpensive, un-chipped third-party replacements without encountering the solid red error light. Understanding the Problem: The V3.00.01.08 Chip Lock : Must be V3
Do not use a firmware version for a different model (e.g., trying to use 3205W firmware on a ). This can brick your printer.
Note that this series has no forced download mode, so improper flashing can be irreversible. Conclusion
You can refill your existing toner cartridge without buying a new chip.