On your printer:
Press the Menu button
Select Maintenance (using the arrows)
Select Ink Cartridge Replacement then press OK button.
Life the scanner unit
You should be able to replace the ink cartridge now. Please let me know if it does not work otherwise if you can take a minute and use the rating system to rate our session as 3 stars or higher and press Submit so I am credited with helping you.
Power off the printer and unplug it from the wall outlet.
Wait 1 minute then plug it back in then power it on
Try my steps above again
Did my steps fix the issue?
Do the arrows work after unplugging and powering it back on?