C00f0401 error code

I have a solution that works.

But first the background: I have an older model HP G85 printer that's a real workhorse and I love it but when I lost power that c00f0401 code came on and I couldn't clear it. So I called HP support and found them USELESS. A search of the Internet tells you to hit the #6 keys to clear it. Some say hit #9 to clear it and others say to hit #5 keys and still others tell you to disconnect the 'self-feeder' tray cable. I eventually cleared it by hitting the #9 key while simultaneously pressing the ON button. I did that about 50 times then it cleared itself and worked fine for a year. However last week I again lost power and when the power came back on again I couldn't clear it no matter how many times I tried.

SO HERE'S MY LATEST CURE and it worked several times in a row--so I think it will always work in the future.

1. Turn printer off
2. With your left hand hond down simultaneously the 5, 6, 9, and # keys an rhytmically press those keys up and down, up and down, (at the rate of about 3 times a second). AND AT THE SAME TIME: Use a finger from your right hand and press the on/off button rhytmically (at the rate of about 3 times a second). Eventually the INITILIZING light will stay light---then take all your fingers off all keys.
3. After waiting a short time (a minute or son) the computer initializes itself and it works fine.

Anyway, it worked for me each time I tried it. I hope it works for you.

Dr. Campbell
Computer Science Dept.

Turn the printer off
Hold down # and 6 while turning it on
Keep holding it down until it finishes turning on.
If that doesn't work then do the same thing using # and 5.

I tried solution #1 to #3 but still error occured. PLease help

I had the same problem and tried the suggested fix. It did not work for me.

Next, I tried unlocking and removing the guide cover in the back.
Then I checked the guide wheels to make sure that they were able to turn.
When I replaced the guide cover, re-locked it and turned it on, voila! It worked!