Holding the button and then pressing and holding the Power button. Releasing the Stop/Reset button while still holding Power .
Once your printer is successfully sitting in Service Mode, follow this procedure to run the software and clear your errors: Step 1: Download and Extract
: Some security software flags service tools as false positives. Temporarily disable your antivirus program before downloading. How to Put Your Canon Printer into Service Mode
To download the Canon Service Tool V4905, follow these steps: Canon Service Tool V4905 Download -
: The printer model is not supported by this version of the service tool.
Click the button at the top to print out a confirmation sheet showing the counter value is now at D=000.0 .
Allows users to read, dump, or write EEPROM data to analyze printer health and history. Holding the button and then pressing and holding
What is showing on your printer? Which Windows operating system version are you using? Share public link
In the software interface, locate the tab. Look for the Clear Waste Ink Counter section.
Runs comprehensive diagnostic patterns to check for clogs. ⚠️ Critical Warning & Safety Allows users to read, dump, or write EEPROM
The software cannot communicate with the printer firmware.
The Service Tool will not detect your printer during normal operation. You must manually boot the hardware into Service Mode using the physical buttons.
For many users, a standard factory reset via the printer's menu or a manual button sequence may resolve minor issues without needing the service tool.
If you are uncomfortable using unofficial software, consider these options:
When Canon inkjet printers produce many pages, or undergo frequent head cleanings, a small absorbent pad inside the printer fills with excess ink. Once this pad is full, the printer locks itself to prevent ink from leaking onto your desk.