HP DeskJet 5550 InkJet Printer "replacing cartridge" Questions

hp 5550 deskjet not printing cartridge light is blinking, tried new cartridge, removed plastic tab, paper is loaded, top cover is closed This is typical cartridge problem.Which cartridge changed?This ...

light constantly blinks One or both print head are defective.Open cover put out color cartridge then close cover.If blinking stops replace color cartridge.If blinking continues put out black cartridge

my 812 c only prints black and magenta. I put in a fresh color cartridge, ran it through alignment, prime, and clean functions and still only magenta prints The cartridge may be defective, but before ...

Printer won't read cartridge My A920 gives the message "Printer Cartridge Missing". We've replaced many cartridges in the past. Have tried cleaning the device, turning off and rebooting, using both ...

power switch blinking One or both print head are defective.Open cover put out color cartridge then close cover.If blinking stops replace color cartridge.If blinking continues put out black cartridge ...

not printing, on light flashing One or both print head are defective.Open cover put out color cartridge then close cover.If blinking stops replace color cartridge.If blinking continues put out black ...

Light is blinking but will not print One or both print head are defective.Open cover put out color cartridge then close cover.If blinking stops replace color cartridge.If blinking continues put out ...

green light blinks continuously, printer will not print. Has always worked well until now. Cartridges are in place, printer has paper, is connected to power and to computer. Is there a reset? One or ...