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

1 Answer

HP L7780 always reports empty magenta cartridge

Right out of the box printer was initializing and half way through reports an empty magenta cartridge (after printing a report page in magenta). Bought new cartridge and no difference. The display printer at Staples ALSO has the exact same problem. So there is an apparent mfg problem? I checked the 4 spring contacts that read the small data EEPROM on the ink cart all look good; so going to order printer #3 and hope it works. For the seconds that the printer worked, very impressive... FAST. I also like the low price of the ink carts. Any other ideas as to why ink cart is reported empty when it is not?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that got 5 achievements.


    An expert who has written 20 answers of more than 400 characters.


    An expert who has answered 20 questions.

  • Contributor
  • 21 Answers
Re: HP L7780 always reports empty magenta cartridge

Hi, The issue can be resolved by just shaking the ink cartridge slightly by holding the nob closed so that the ink mixes and then insert the cartridge back in the printer this should fix the issue... You can also power cycle the unit by unplugging the power chord and replugging it back by keeping the printer turn on and make sure that the all the cartridges are out while powercycling the unit, This will fix the issue check ..

Posted on Sep 27, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Printer will not print blue, prints pink instead

Blue is made from magenta (pink) and cyan ( sky blue), if your blues are coming out pink then they are missing the cyan component.

In your machine this could be caused by a blockage in the printhead, the cyan cartridge being empty, an electronics fault, a boma pump fault (the squishy black thing on the base of the cartridge). Check your cartridge first - if it feels lighter than the other it is probably empty. Sometimes there is a fault where the entire contents of a cartridge (usually the cyan) can be emptied in a matter of days or less. If the cartridge is unusually empty compared to the other colours - refer it to HP.

Mar 13, 2015 | HP Officejet Pro L7780 All-In-One InkJet...

2 Answers

HP CM1015 - stil works; Magenta does not print even though full

The magenta might have been freezed, change the magenta.

Jun 19, 2012 | HP LaserJet CM1017 MFP All-In-One Color...

1 Answer

Magenta cartridge is empty, how can I print in

You can't.The printer need all cartridges not empty to initialized and printing.You need to replace the empty cartridges to print.

Oct 26, 2009 | Brother DCP 115C All-In-One InkJet Printer

1 Answer

Have replaced Magenta twice in two weeks. Does not recognize it.

There are only 2 reasons why this problem happens to your printer:

1) This usually happens if your printing heavy graphics.
2) You are using HP refilled ink

Take note HP always suggest us to always replace your ink with original HP ink cartridge

Aug 26, 2009 | HP Photosmart D7260 Printer

1 Answer

My HP Officejet Pro L7780 All-In-One InkJet Printer was jammed with paper. I believe I got it all out and now the display reads" Printhead problem- the following printhead has a problem: magenta/cyan...

There are two possibilities here Joanne, first, it could be a false error message or else second, the Cyan/Magenta print head has gone bad.Try the following:
1. Take the Cyan/Magenta printhead out. Remember, the printhead...not the cartridges.
Clean the copper contacts with a Q Tip, moistened with plain water. Wait till it dries, put the printhead back in.
2. If this does not resolve the issue, unplug the power cord from the back and press and hold the power cord for 30 sec. This will drain all the static charges. Plug it back after a couple of minutes and see if the error message re appears.

Jul 02, 2009 | HP Officejet Pro L7780 All-In-One InkJet...

1 Answer

OfficeJet 9130 incorrectly reporting empty ink cartridge

Look to see if there is dirt or other debris inside the Magenta Ink slot. There is probably something there disrupting the ink flow. Use a flash light to see if ink is clogged. Use Acohol with Q tip to clean the area and reinsert the ink cartridge. Make sure the printer is off and the slot has dried before turning the printer back on.
Hope this helps. Helen

Dec 19, 2008 | HP Officejet 9110 All-In-One InkJet...

1 Answer

Hp l7780 all in one

I just purchased a hp officejet pro L7780 all in one wireless trying to set up system - was suppose to have a poster sheet to guide me -- NO GUIDE POSTER - can i view one on line somewhere at no cost -

Nov 11, 2008 | HP Officejet Pro L7780 All-In-One InkJet...

Not finding what you are looking for?
HP Officejet Pro L7780 All-In-One InkJet Printer Logo

256 people viewed this question

Ask a Question

Usually answered in minutes!

Top HP Printers & Copiers Experts


Level 3 Expert

93861 Answers


Level 3 Expert

7983 Answers

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Are you a HP Printer and Copier Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides