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Student
Posts: 1
Member Since: ‎05-19-2013
Message 1 of 2 (219 Views)

c4750 says incompatible cartridge when same cartridge worked the day before

I have a HP c4750 all in one printer.  The other day I used it with no problems at all.  The next day when i turned it on to print, an error message came up on the printer saying that the cartridge was incompatible.  I thought maybe the ink was low. I went to the store got another cartridge, same thing happened.  I thought it was some sort of wierd flook.  Went back to the store, got two more cartridges.  One was a regular 60, the other a 60xl.  Same thing happened.  

 

I came to this sight to try to trouble shoot.  I did as the instructions said.  Still, the same message keeps coming up.  I've done everything i ca think of to get the darn thing to work.  These are the same cartridges we have always used.  I buy them from Wal-mart, and they are actual HP products.  

 

Please help!!

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Provost
Posts: 29,592
Member Since: ‎11-17-2008
Message 2 of 2 (206 Views)

Re: c4750 says incompatible cartridge when same cartridge worked the day before

[ Edited ]

The troubleshooting document here may help resolve cartridge errors in the C4750.  Based on your description I would suspect ink or fibers on the electrical contacts as the issue.

Bob Headrick,  HP Expert

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