This upscale printer is yours free if you would like to take a shot at solving it's printer error.
Below is a description of the issue and the HP case number for additional assistance.
please email if interested

Barb
 Type of Printer:

Printer driver version

09.84.00.1173

Software version

028.000.1315.000

Serial number

CN29GBXGHM05KC

Service id

23008

IK Number

932

firmware

CLP1CN1452BR

Model

Officejet Pro 8600 N911a


 Error Message:

"The printhead is missing, not detected, incorrectly installed, or incompatible."
Resolution Attempts:
The printer was turned off/on several times.
The printhead was reinstalled several times.
All ink cartridges were replaced with new ones.
Attempts to do Printhead alignment and cleaning generates same error message.
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HP Response

Date: Thu, 1 Oct 2015 12:31:05 -0400

Your product’s warranty expired on January 2, 2014. 
Out of warranty products may require a fee for phone support. Your Case Number : 3020742721 When you call the HP support phone number below, please give your case number to the agent. 7 days a week, 8:00am to midnight Eastern Time (888) 747-7948