https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/trouble-with-canon-printer/m-p/24981#M2139 <P>The printhead could be damaged or worn. Try taking all the ink and print head out and reinstalling them. If this doesn't work, the printhead needs to be replaced. Although, given the age of the printer, you would probably be better off purchasing a new printer. Canon offers a discount off of new printers. 1-866-443-8002</P> Tue, 21 May 2013 20:36:14 GMT Mpell 2013-05-21T20:36:14Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/trouble-with-canon-printer/m-p/24843#M2138 <P>after using my canon mp970&nbsp; for years it won't print because it says that the print head of incorrect.&nbsp; It ask me to change print head.&nbsp; why would this happen after about 10 years?</P> Tue, 21 May 2013 01:16:57 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/trouble-with-canon-printer/m-p/24843#M2138 myrt316 2013-05-21T01:16:57Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/trouble-with-canon-printer/m-p/24981#M2139 <P>The printhead could be damaged or worn. Try taking all the ink and print head out and reinstalling them. If this doesn't work, the printhead needs to be replaced. Although, given the age of the printer, you would probably be better off purchasing a new printer. Canon offers a discount off of new printers. 1-866-443-8002</P> Tue, 21 May 2013 20:36:14 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/trouble-with-canon-printer/m-p/24981#M2139 Mpell 2013-05-21T20:36:14Z