Keep holding the Power button. Release the Stop/Reset button, then press it exactly 5 times (or 6 times for certain G-series models). The indicator light will alternate between green/blue and orange with each press. Release Power: Release the Power button.
While keeping the Power button held down, release the button.
Automatically detects connected USB hardware without manual configuration. Supported Canon Printer Models
Triggers powerful, factory-level head cleaning cycles that are more thorough than standard driver options. download canon service tool v4905
The Service Tool cannot communicate with the printer firmware.
Never click random buttons inside the tool. Pressing the wrong option can wipe the printer's firmware permanently, turning the device into an unrecoverable "brick." Critical Physical Maintenance Warning
Advanced users often bypass internal pads entirely by cutting the internal waste ink tube and extending it out the back of the printer chassis into a small external plastic bottle. If you want to ensure a clean setup, please let me know: Your exact Canon printer model number The operating system version running on your computer Keep holding the Power button
The physical felt waste ink pads inside the bottom of your Canon printer are genuinely saturated when this error triggers. If you reset the counter without addressing the physical ink, excess fluid will eventually overflow out of the printer housing, ruining your furniture, flooring, or internal electrical circuitry. What to do after resetting:
Using the tool on an unsupported model can corrupt EEPROM data, permanently damaging the printer.
Right-click on ServiceTool.exe and select . Release Power: Release the Power button
: Initiates deep cleaning cycles more intensive than those found in standard driver settings. EEPROM Operations
I can give you specific instructions tailored directly to your hardware layout. Share public link
: Be extremely cautious when downloading from unofficial sites. Some users have reported finding Trojan Horse viruses in these downloads. Review: Canon Service Tool V4905
The Canon Service Tool v4905 is an invaluable and cost-effective solution for reviving a locked-up Canon printer. It bypasses an arbitrary digital limit that would otherwise render a perfectly functional device useless.
Hold the button and then press and hold the Power button.