I've read a few strings about chip replacement and the methods to make them recognised but I just bought a MP600 and some chipless carts. I replaced the chip and did the hold down of the Stop/reset button for 5 secs and Nothing. The printer still says the cartdridge is not recognised.
i don't get any warnings on the PC screen about warranties. It just won't accept the cart. The little monitor on the printer just shows no cart installed.
I replaced 2 carts and eventually noticed that the Cyan (far right cart) was flashing as well (seeming to indicate it was empty) It still had some ink in it but I replaced that one as well and then the cartridge not recognised message changed to an error message 5021 (or something meaningless like that).
Anyone know how to make it recognised the cartridge.