Model-specific reset guide
Canon MX420 Ink Absorber Full Reset
When Canon MX420 reports that the ink absorber is full, turning it off and on will not normally remove the lock. The printer must be prepared correctly and its counter reset.
Why Canon MX420 reports an absorber error
The absorber pads collect ink generated during print-head cleaning. Canon MX420 tracks those maintenance cycles in memory rather than measuring the pads directly.
Wic Reset Connect is designed to reset the compatible counter in Canon MX420. The physical waste ink system should still be inspected and maintained when necessary.
Enter service mode on Canon MX420
The Stop/Reset press count varies across Canon series. Use the complete service-mode guide and select the procedure for this printer instead of guessing.
Reset the counter in Canon MX420
Prepare Canon MX420 before entering the key. A stable service-mode state and direct USB connection are essential.
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Prepare the printer
Resolve other errors, confirm a steady power light and enter service mode using the linked guide.
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Connect directly by USB
Connect Canon MX420 to a Windows 7, 8, 10 or 11 computer without Wi-Fi or a USB hub.
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Start Wic Reset Connect
Run the program as Administrator and wait until the Canon service-mode device is detected.
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Enter the key and reset
Enter the purchased key, select Reset and keep the printer connected until confirmation appears.
If Canon MX420 is not detected
- If Windows does not detect a service-mode device, restart the printer normally, wait 10 seconds and repeat the preparation.
- If the power light blinks, resolve the displayed cartridge, paper or mechanical error before trying service mode again.
- Close Canon maintenance utilities and clear paused print jobs before opening Wic Reset Connect.
- Repeat the button sequence at a steady pace; releasing Power too early is a common reason service mode fails.
Canon MX420 reset FAQ
Does Canon MX420 require service mode?
Yes. The printer must expose its maintenance interface before the counter can be reset with Wic Reset Connect.
Can I perform the reset over Wi-Fi?
No. Use a direct USB connection between the printer and a Windows computer.
What if my reset key was used during a failed attempt?
Correct the cause first, then use the new-key generator or contact support for assistance.
Restore Canon MX420
Ready to reset Canon MX420? Verify the power light, USB connection and service-mode state before continuing.