The Service Tool writes directly to the printer's EEPROM. If you interrupt the process, lose power, or use the tool on an incompatible model, you can permanently "brick" your printer (render it unusable).
If it worked, error 5B00/5B01 should be gone.
If you own a Canon PIXMA inkjet printer, you may have encountered the dreaded "Waste Ink Tank Full" error or flashing lights indicating a service requirement. When Canon printers reach a certain page count, they often lock up, requiring a specialized tool to reset the internal counter. The is one of the most reliable, specialized software applications designed specifically to fix these issues.
Using the Service Tool requires absolute precision. Running the software while your printer is in normal printing mode will result in errors. Follow these steps precisely to avoid bricking your printer's mainboard. Step 1: Put the Printer into Service Mode