I have used look-alike 551 and 550 ink cartridges on my Canon iP 7250 for years with great success, usually manufactured or supplied by "ink power ". My latest batch has changed. When a cartridge is empty the LED at the front end flashes red, when a full cartridge is installed the LED shows...
Hi all you helpful people. I have been a computer engineer since 1968 ( you had to spell the word then, people said " do you mean comptometer, and yes I worked on them as well), a printer was a person who set type or the huge machines used to print newspapers. I have always been a Canon printer...