I purchased an HP F4210 All In ONe printer in December 2008. It never scanned properly, but since it printed I didn't worry too much about it. By June of 2009 it stopped printing as well.
Even though I have extended warranty coverage from the shop where I bought it, I was directed to HP's 1-800 number. After a 2 hour wait I finally managed to connect with someone. That call lasted an hour, and I was told that the printer would be replaced, but that a "case manager" had to handle that aspect. I would receive a call the next business day at 4 pm.
Of course, no call came. I had to ring them again and wait ANOTHER 45 minutes on hold while a case manager was located. This mamager's name is JOANNE. JOANNE then informed me that none of my information had been saved or transferred, and there was no record of me requesting a repair. I told her I had requested a replacement, not a repair. JOANNE told me that all they would do was repair it. Since I was only a home customer and not a business customer, there were no other options open to me.
I lost my cool at that point and demanded that she get the process underway as quickly as possible. JOANNE said that a UPS box would be sent to my home address within 24 hours.
No box arrived. No phone call or explanation, or response to the angry message I left at the number and extension JOANNE gave me. It's a fake number which is never answered.
Not only are HP's products substandard, their customer service is horrible as well. Don't buy the extended warranty on any of their products. If it breaks, just THROW IT AWAY. And don't whatever you do call that 1-800 number. It's designed to give you as much run-around as possible and hopefully kill you with the stress of it all.
And JOANNE, if you're reading this, go to h*ll and stay there this time.