I have this problem too!
The easy solution is to get some cleaner and paper towels. Bounty "Select A Size" will do you fine.
Tear off one piece and fold it in 4ths or some NARROW strip size that will lay under the print carriage, lengthwise along the "ways" that the carriage travels.
The printhead (carriage) has to be free to move by hand so, if you don't already know how, turn it off and wait until it "parks" over the capping station and goes to sleep. Turn it back on, then as soon as that sucker moves from the park position, unplug it, fast. Verify that the carriage will slide back and forth under your control.
Lay the "diaper" you made under the print head and slide the printhead over the paper a ways. Damp the towel with a little cleaner. Windex will work, but I use
Greased Lightening from Ace Hardware. Isopropyl alcohol will probably do also, or some light ammonia bearing solution. I use a syringe for the application.
Apply the cleaner sparingly, because if you are sloppy you'll have to get a hair dryer to dry up your mess. Slide the printhead back and forth on your paper towel until you've cleaned up your messy printhead.
You will almost certainly want to vote for me for president, but if elected, I will not serve.
Stan