Question about HP Business InkJet 2800 Printer

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Printerhead need replacing

On my hp inkjet business 2800 the machine ask for printerhead replacement for the three colours cym.Now I have replaced them and the printer still asks for new printheads.I've cleaned the contacts on the carriage and on the printheads.Also reset the machine to factory default when the printer was ready at one time but when I started to print a config page,the machine then ask for same printheads to be replaced.
Any suggestion to resolved this would be appreicated.
Thanks

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  • mary63672004
    mary63672004 Feb 10, 2014

    Thanks for the advise, but because I'm not a teckie, I think I'll invest in a new printer. The work involved in trying to figure out the problem and it's solution just isn't worth the work!

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Printheads are very sensitive and HP sets a "Time" limit of about two years for # 11 printheads regardless of how much you print. ( This is bunk from HP of course!.) But the prinheads do not expire!! They just show their health and that the printhead has exceeded the warraty period ( regardless of how much you print) .

Remove the printheads from their socket and fill a 8- 12" dish with 1/4" high of warm water. Set the printheads in the water in the same position they are set in the printer (vertical) You may need to place a wooden spoon of a block behind the printheads to keep the heads in position, as they will tilt backwards.
Leave the printheads to soak for about 15minutes.
Remove the printheads and slightly press them on a folded kitchen paper towel .It should show two lines of the same color of the printhead (cyan, yellow, etc) If the two lines are not of the same length (about 1/2" long) then repeat the soaking for that color. Be sure to dry the printheads properly

Install the printheads in the printer socket vertically so the contacts are properly set.. If not you may get a message to "Install (color) printhead". reset it again and run at least 15 pages with color information. It should print ok!!
If any print heads is damaged then the only option is to replace it with a new one.
It may be that the ink line from the cartridge to the printhead is clogged and ink is not flowing. This may require to run a large print job of about 50 or so pages to force ink into the clean printheads.

The terminal strip behind the printhead that makes contact with the pins in the printer are very delicate and if removed two to three times may not make a good contact and render the printhead unuseable.

Good Luck!!

JoeA

Posted on Jan 10, 2009

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Did you replace the printheads with current un-expired new printheads? You may want to check this before doing anything else. If unexpired then you are probably looking at a carriage replacement which is something we can do. We also have these machines in stock.

Inkworks
866-381-0541

Posted on Dec 05, 2008

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