Printers are equipped with physical waste ink pads designed to absorb excess ink during the printhead cleaning process. Canon builds an internal counter into the printer's firmware to estimate when these pads are full. When the counter reaches 100%, the printer locks down to prevent ink leaks. The ST6000 software interacts directly with the printer’s firmware to reset this Waste Ink Counter (EEPROM) back to zero, reviving the machine. Key Features of ST6000

The program interface will open, automatically detecting your connected printer model. Step 3: Clearing the 5B00 Waste Ink Error Look at the tab of the software window. Locate the Clear Ink Counter section. Set the Absorber dropdown menu to Main . Click the Set button right next to it.

Look at the section below it. Click the Set button there as well to ensure the internal value defaults back to 0%.

While holding , release Stop/Resume and press it 5 times (some models require 2 or 6).

Keep holding the Power button, but .

Click to print a confirmation page showing the counter is now at 0%. Important Safety Tips 💡

This tool is . It is a proprietary service utility intended for authorized technicians.

Ensure your printer is recognized under the "USB Port" dropdown. Under "Clear Ink Counter," select . Under "Ink Absorber Counter," select Main . Click the Set button next to each option.

⚠️ Using the wrong version can "brick" the printer.

Always use a high-quality USB cable. Interrupted data during a reset can "brick" the printer’s logic board.

The Canon Service Tool ST6000 is a powerful software utility designed for authorized Canon service technicians to diagnose and repair Canon printers and other imaging devices. While the tool is not widely available for download, authorized technicians can access it through the Canon support website or service portal.

Triggers powerful ink flushing cycles to clear stubborn nozzle clogs.

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