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

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I have an HP L7780 Officejet printer. The black ink prints very very light or not at all. The cartridge is new, printer aligned, re-booted printer. What I don't know how to do is clean the printheads. I have Windows Vista and I right clicked Printer under Control Panel, then went to System Maintenance and I can't find where to clean the printheads. Do you think the black printhead needs to be replaced?

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Base from the description of your problem the issue here is definitely with the print head that already needs a replacement in order for the problem to be corrected, so the best thing to do now is to have that print head replace and everything will be fine.

Posted on Oct 11, 2010

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Posted on Jan 02, 2017

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How do I get my Black ink to print? The page comes out blank and I installed new cartridges.


There is a page here that gives a bunch of information on how to troubleshoot your problem.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01957673&cc=us&dlc=en&lc=en&product=2512010&tmp_track_link=ot_search#N236

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HP Officejet Pro L7780 has stopped printing in black after changing yellow cartridge. Black is barely showing in spots. Have cleaned the heads and restarted twice and black cartridge is almost new, at...


I have to ask this question of you, just to make sure this is not an issue. Are you using a factory new ink or toner cartridge?
Please consider the following:
If you are using a refilled or third party cartridges that may well be your problem. Most manufacturers build logic into their products to prevent the use of “Other Equipment Manufactured” cartridges as well as re-filled cartridges.
They do this to prevent problems from contaminated inks or toner causing problems with print quality or damaging the physical printhead or photo conductors.
If you are using factory new ink or toner cartridges, then please call the manufacturer’s Technical Support for assistance with the warranty on the cartridges
Don

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3 Answers

Alignment failed refer to device documentation hp L7780


You need to remove the black/yellow printhead and dab it on a damp paper towel until you see a solid line of black ink on the towel when you press it. It won't pass the alignment until all colors work properly.

Nov 19, 2009 | HP Officejet Pro L7780 All-In-One InkJet...

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Won't recognize black cartridge on hp officejet pro l7780


Ok what you need to do is powerdown the printer the pull all ink out of the printer power it on without in then power it down again and replace the cartridges. If this doesnt work go into the control panels and select the color of the ink as only B&W and print a test page

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Try to reinstall your printer.

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Never mix dye and pigment inks/machines Head could be screwed Try copying many black text only pages up to 200 but run head clean after 50 or so Inkypete

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1 Answer

HP Officejet 5510 - Replacing Ink Cartridge


this should work for all 5500 hp printers i hope this helps you out richard from chicago i just noticed you have the wrong cartage you need hp 57 color that will make all the difference :-) HP Officejet 5500 series All-in-One model Black cartridge Color cartridge HP Officejet 5505 HP 56 HP 57 HP Officejet 5508 HP 56 HP 57 HP Officejet 5515 HP 56 HP 57 HP Officejet 5510, HP Officejet 5510xi, HP Officejet 5510v HP 56 HP 57 HP Officejet 5600 series Replacing the print cartridges
  1. Turn on the HP Officejet, and lift open the print-carriage access door. The print carriage will move into the access area. Figure 1: Opening the print-carriage access door c00034766.jpg
  2. After the carriage stops moving, push down on the top of the print cartridge to release it, and then pull it toward you out of the slot. Figure 2: Removing the print cartridge c00034767.jpg NOTE: It is normal to see ink buildup in the print cartridge slots.
  3. Remove the new print cartridge from the packaging and gently remove the plastic tape by using the pink pull tab. CAUTION: Do not touch the copper contacts or ink nozzles. Install the cartridge immediately upon removing the tape to prevent ink from drying in the nozzles. Figure 3: Removing the plastic tape c00034768.jpg
  4. Push the new print cartridge into the appropriate slot at a slight angle, until it clicks into place. CAUTION: Do not attempt to push the cartridge straight into the slot. It must slide in at a slight angle. Figure 4: Inserting the print cartridge c00034769.jpg
  5. Close the print-carriage access door.
Aligning the print cartridges The HP Officejet will prompt you to align the print cartridges every time you install a new print cartridge to assure high-quality output.
  1. When the message displays, press OK . The HP Officejet will print an alignment page.
  2. Place the alignment page face down on the left front corner of the glass with the top of the page facing the left side.
  3. Press OK . The HP Officejet will align the print cartridges and display Alignment Complete .

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