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Student
Posts: 1
Member Since: ‎03-20-2017
Message 1 of 2 (50 Views)

Black not printing

Product Name: officejet 4620
Operating System: Microsoft Windows 10 (64-bit)

I just replaced the black cartridge for the Officejet 4620 and it work fine for the first print. All others since thing comes out black. The other colours work fine. Did the test prints and ran all the tests but no changes. Software all current

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Provost
Posts: 29,553
Member Since: ‎11-17-2008
Message 2 of 2 (27 Views)

Re: Black not printing

The troubleshooting steps in the document here may help resolve black not printing on your Officejet 4620.  

 

If the standard troubleshooting did not resolve black not printing I would suggest removing the black cartridge.  Turn it over and examine the area around the ink port.  There are four orange plastic spots, left over from the protective cap.  Make sure these are flush with the cartridge body, if not carefully trim them flush.  If the plastic nubs protrude they can prevent the cartridge from seating properly.  Before replacing the cartridge in the printer dribble a few (maybe four) drops of hot water into the ink port in the printer and two drops into the ink port on the cartridge then snap the cartridge back in position.  

 

It may also help to manually clean the printhead as described in the post here.

 

I have also seen cases where leaving the printer overnight after the cleaning cycles allows black to recover.

 

If none of the above restores black printing your printer will likely require repair or replacement.

Bob Headrick,  HP Expert

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