Question about HP Officejet Pro L7780 All-In-One InkJet Printer

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Yellow/black printhead won't work

I installed a new printhead.  It worked for a few days.  Now the printer is telling me there is a problem with this printhead.  I have removed it and re-installed it.  Still not working! Help!

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I talked to HP Solutions for over an hour, It was finally decided that they would replace the printer.  Our warranty had 16 more days!

Posted on Jan 10, 2009

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Why won't my printer print black with all new cartridges?


Remove all inks, then the printhead & sit the printhead on a soft cloth soaked in warm water - let it sit for a few minutes then reinstall, close lid then make the machine ask for the inks once the inks have then been installed it should prime the machine. If this does not work try it again & if that fails then your printhead probably needs to be replaced.

Aug 12, 2014 | HP PHOTOSMART PLUS B209A All-In-One...

1 Answer

Officejet K5400 Won't print yellow


Hi David,

Turn Off Your Printer Remove K&Y Printhead from your printer. Put the Printhead in the bowl in the same Position As in the Printer And Pour Little hot water in the bowl till the printhead is half dipped in the Water. Leave in for 15-20 Min. after that Clean the Printhead with clean clothes.. Must Ensure that no Water is in the Circuit of Printhead. leave the printhead for 30 min. After that put Back in the Printer. You will Get the Better result than ever BUT PLease Donnot use clean Printhead Utility immediately after this process use after the Day. If it Doesnot Work Then Clean the Printhead in Hot Water Several Times.. Do not Remove Printheads Regularly From Your Printer..
I Have the Same Printer And Suffered Same Problem A Month Ago with Yellow Colour...


Regards,
Sean

Aug 10, 2012 | HP Officejet Pro K5400 All-In-One InkJet...

1 Answer

The following printhead has a problem black/yellow the printer will not print. These are new ink cartiladge


Hello and welcome to FixYa!
In the HP OfficeJet Pro L7780 the printheads are actually separate from the ink cartridges. In your case, it sounds like the black/yellow head has worn out and will need to be replaced. The good news is, this is a user replaceable part. The bad news is, the replacement heads are not cheap. Amazon has the HP 88 Black/Yellow printhead listed currently for about $61.
http://www.amazon.com/HP-Yellow-Officejet-Printhead-Packaging/dp/B000BO9L8M/ref=dp_cp_ob_e_title_0
YouTube has a nice video that explains how to install the printheads here:
http://www.youtube.com/watch?v=8Zl0LUxBSvg
I hope this helps!

Mar 02, 2011 | HP Officejet Pro L7780 All-In-One InkJet...

2 Answers

The printer keeps saying there is a problem with the printerhead with the black/yellow. what can i do to fix this problem. The black yellow cartridge still have some ink in it. do i need to just change the...


Unfortunately, it sounds like you need a new printhead C9381A. You can hope that it's clogged from lack of use and go into printer properties and attempt to clean it (it will use a lot of ink in the process). However, the the black/yellow printhead generally wears out faster than the C9382A cyan/magenta printhead. Replacement should cost around $70 for each.

Oct 30, 2009 | HP Officejet Pro L7590 All-in-One InkJet...

2 Answers

ESP-7 won't print black ink


go to main menu,go to maintenance and then clean printhead go for deep cleaning .. and then caliberate printer from main menu.. ur printer will be working fine.. if not call kodak all in one printer support, they will replace ur printhead.free of cost

Jun 18, 2009 | Kodak ESP 3 Multifunction Printer/ Copier/...

1 Answer

Printing yellow for black


Hi Jan,

Can you confirm that you are using a CIS or non-HP cartridges with this printer?

It sounds a lot like the printhead has reached a clogging point where sediment has built up in the black portion and loosens enough to printer a few lines before it re-asserts itself again.

Based on my experience of this printer, if you're using a non-HP delivery system for ink then you should consider replacing the black ink with a dyebase alternative instead of pigment.. Replacing the Black/Yellow printhead and running a number of test prints to purge the pigment ink in the printhead should then result in a clean and more reliable printout in future.

One other vector for problems is the cleaning area and I've found that this can become soiled with excess ink causing cross contamination within the inks of one printhead. As yet I've not found a reliable solution to counter this sort of issue.

Hope this gives some clues and hopefully some ideas of a fix.

Martin

May 24, 2009 | HP Officejet Pro L7680 All-In-One Printer

2 Answers

The following printhead(s) has a problem Black/Yellow[K/Y].


Simple solution is:

Replace the Black and Yellow Print Catridges. The print heads are mounted to the bottom of the catridges and these, depending on whther they're from HP or not. can have a hard time conducting electricity properly, and in turn.. spitting ink out properly.


Also happens often with aftermarket Catridges because HP puts chips on the catridge. be sure to put an HP catridge. Sometimes you get what you pay for :)

Oct 31, 2008 | HP Officejet Pro L7580 All-In-One InkJet...

10 Answers

No black print


I work for kodak with these printer's.
I provide tech support for them.
For this problem all i would recommend is doing the deep clean on the printhead twice, Doing it more then twice is a waste of ink and if it doesnt fix it the second time it won't.
Also replacing the black ink cartridge.
Also calibrating the printer has worked for me a few times.
I would not recommend cleaning the printhead manually, thats more of a chance to break it then fix it.
I would just recommend calling into the kodak tech support and getting a replacement printhead to fix that clogged nozzel problem.

Jan 19, 2008 | Kodak EASYSHARE 5100 All-In-One Printer

3 Answers

Epson 9600 suddendly stopped printing yellow


It's NOT a cartridge if this works... I had a similar problem with a 9600 I bought on eBay that had been inoperable over 18 months. Three colors would NOT clear up after multiple power cleanings. Epson support politely solved the issue at no charge on the phone... he had me drop a few drops of warm water on the pad the printhead rests on when not printing. You have to move the printhead to the left to do that by moving up the little lever near the cutter. The pad is easier to reach with a long eye dropper. I used very warm water- not boiling. I replaced the printhead over the warm water pad for an hour. Then I repeated the process and let it be for another 60 minutes. Then I did a nozzle check and what was gummed up yellow, cyan, and magenta nozzles became clear and it's worked fine since. Good luck!

Oct 10, 2007 | Epson Stylus Pro 9600 InkJet Printer

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