Just to note that the only reason to buy a WICReset key for the C83 is if you have no access to anything other than a Mac (with compatible OS) and have to use the iWIC software or if the printer is dead.PeterBJ said:For modification kits to use an external waste ink collector, after resetting, check this out: http://www.octoink.co.uk/_docs/wik_intro.php/ . Octoink also has a newer resetting program in case the other doesn't work with your printer. You will have to buy a key to use the newer program.