Printing Errors or Lights & Stuck Print Jobs

I purchased the printer (HP Officejet Pro 8610 e-All-in-one printer) in January, 2015.  The printer functioned properly - copy, fax, and scan, until two days ago.  Now, it does not print at all.  Received an error code: "0xc19a0013" (Missing or Failed Printhead).  An expanded version of the error code reads:  "The Printhead appears to be missing, not detected, or incorrectly installed.  Error Code: 0xc19a0013.   The printer uses a removable printhead, HP Ink Cartridges 950 (black) and  951(cmy).  I have used HP Support Troubleshooting recommendations: all software and firmware for this printer is installed; the HP ink cartridges are not low or empty; removed the ink cartridges from the printhead and reinstalled them.

There are multible steps in the troubleshooting recommendation, but I stopped at removing the printhead.  Because of my technical inexperience, and there were too many ceveats (beware, caution, proper reinstallation, and etc.)  with removing the printhead that could cause greater problems.  So, I stopped at removing and cleaning the printhead.  Also, used the HP Printer Scan Doctor for assistance. The tool for cleaning the printhead doesn't work.   What troubles me most with the 0xc19a0013 error code is its explanation: The printhead appears to be missing, not detected, or incorrectly installed.  I can use all the help I can get to understand what is going on with the error code that I have received, and how to resolve the malfunctioning printer.