Model-specific reset guide
Canon MX439 Ink Absorber Full Reset
When Canon MX439 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 MX439 reports an absorber error
The lock is based on accumulated maintenance activity. Resetting Canon MX439 changes the counter value but does not remove ink already held in the absorber material.
Wic Reset Connect is designed to reset the compatible counter in Canon MX439. The physical waste ink system should still be inspected and maintained when necessary.
Enter service mode on Canon MX439
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 MX439
The counter reset normally takes only a few minutes after Canon MX439 has entered service mode successfully.
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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 MX439 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 MX439 is not detected
- Repeat the button sequence at a steady pace; releasing Power too early is a common reason service mode fails.
- If Windows does not detect a service-mode device, restart the printer normally, wait 10 seconds and repeat the preparation.
- Run Wic Reset Connect as Administrator and keep internet access active for key validation.
- If the power light blinks, resolve the displayed cartridge, paper or mechanical error before trying service mode again.
Canon MX439 reset FAQ
Can I perform the reset over Wi-Fi?
No. Use a direct USB connection between the printer and a Windows computer.
Does the reset clean the ink absorber?
No. It resets the stored counter. Inspect, clean or replace the absorber pads when their physical condition requires maintenance.
How many times should I press Stop/Reset?
The correct count depends on the printer series. Use the linked Canon service-mode guide and do not guess.
Restore Canon MX439
Prepare Canon MX439, enter service mode and complete the reset with a valid Wic Reset Connect key.