Hi, I'm Nathan.Sorry to hear that you're having trouble, but I'll do my best to help you. Please give me a few moments to review your details here.
First regarding the cartridge change procedure, this is not an automatic process as on some other printers, some menu steps are required prior to physical replacement:
Press the home (house icon) button and select Setup (wrench icon) > Maintenance > Ink Cartridge Replacement.
Lift up the scanner unit (below the glass)
Open the cartridge cover
Squeeze the tab on the cartridge and lift the cartridge straight up to remove it.
Gently shake the new cartridge four or five times, then remove the cartridge from the package, removing the yellow tape.
Insert the new cartridge into the holder and push it down until it clicks into place.
Close the cartridge cover and push it down until it clicks into place.
Select Check on the LCD screen to make sure the cartridge or cartridges are installed correctly.
Close the scanner unit.
Regarding the print quality:
These symptoms point to either a clogged/contaminated print head, or a faulty print head (or the logic board that controls it).
You can try going into the setup/maintenance menu on the machine and running the “clean print head” function repeatedly, up to 5 times total, testing after each.
If it still doesn’t print anything, you’ll need to do a manual cleaning as a next step.
I have to caution you up front though that the manual cleaning process is messy and time consuming. It also has a low chance of success, if you see no improvement at all from the automated cleaning. It is most likely a hardware failure (bad head) which the cleaning can’t fix, as printheads are a wear item and do fail with time/use.
Realistically, it’s probably time for a new printer. These printers are built for a maximum 3 year service life, so this type of failure is not surprising especially if it gets infrequent use or you have used generic cartridges (both of which damage the nozzles). While it can be fixed, it is not worthwhile to do so. You would have to, at a minimum, replace the printhead, which costs about $150; if the logic board is bad you’re looking at $200-250. For $80-100 you can replace the entire machine with a brand new model, with current technology and a fresh warranty, which makes more sense than buying the new part for an older printer.
That said, it doesn’t hurt to try, if you wish. Let me know how the built in cleaning function works, and I’ll guide you through the manual steps next, or I can recommend replacement options if you prefer.
Best regards, ***** ***** for the news,