HP - C4822A (HP80) Printhead & Cleaner, Magenta C4822A (DMi EA

all right what I'm going to show you is how to unclog the HP designjet printheads according to the HP tech support I talked to them over the phone and this is what they told me to do for the printheads now this printer that I'm showing you here is a designjet Z 2100 photo printer and I'll point out that according to HP you need to keep your printer on at all times unlike Epson printers at least the Epson printers that I own that recommend you turn your printer off when you're not using it the HP's want you this one anyway the designjet recommends that you keep it on as it has ink cycling process to prevent the print heads from being destroyed or at least clogging so okay so here I'm going to push the menu button and we're going to go to the ink setting and now you want to do a test to see which print heads are clogging in my case I know which ones are clogging but you would do an image