There are various things about resetting the counters online, but the reliable method is to download the service engineer's software.

I was very grateful to find this at: http://www.grumpymiddleagedman.co.uk/201... BUT THIS NO LONGER WORKS. You can now access the tool on my Google drive: https://drive.google.com/file/d/1nU9Jv58...

You will need to put your printer into service mode. Assuming that your printer (ip4600 series) is already installed on your PC, reset can be done once your printer is in Service Mode.

a. Switch Off the Printer b. Hold the Resume Button c. Switch On whilst Holding the Power Button d. Release the Resume Button e. Press the Resume Button Twice f. Release the Power Button. By this time your printer is in service mode.

Run the Service Tool Program (Resetter). Select your Region (EUR). Press the ?? at RHS of ‘Set Waste Ink’ section.

All done - hopefully successfully!