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

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Replaced black ink cartridge on HP L7780 does not print black or align

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HP ink jet 1200..prints only test page after replacing the yellow cartridge.test page only shows black and blue inks are good.need help.


Important thing: HP inkjet printers having self align technology & its aligns automatically after replacing the ink cartridge/s.In the process of align it will prints align page &it will read it on the model.
Suppose if you replaced yellow cartridge, as usually it will print align page, but if one or more cartridges not printing properly align will not completes. Results every time it will prints the align page when its switching on. Align will completes only when all cartridges/print heads are in healthy condition.. Check the alignpage find out which colors are not printing properly, replace it to over come from this issue. Now you decide what to do?..

Dec 11, 2012 | HP Inkjet 1200dn Printer

1 Answer

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

Feb 18, 2010 | HP Officejet Pro L7780 All-In-One InkJet...

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...

1 Answer

Generic black ink cartridge causing black ink to not print


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

Apr 20, 2009 | HP Officejet Pro L7780 All-In-One InkJet...

4 Answers

Printhead problem (black/yellow) on HP L7780


When you removed the paper it's possible your damaged it and that's why the message is not going away. Did you try to put the cartridge back in to make sure it had not come out of position and just remove the power cord for a minute then plugging it back it.

Here are the steps to make sure you properly change the cartridges and the heads...

Install the ink cartridges and printheads Step one: Install the ink cartridges All four ink cartridges must be correctly installed for the HP All-in-One to work. Follow the steps below to Install cartridges:
  1. Open the ink cartridge cover.
  2. Remove each ink cartridge from its package.
  3. Align each ink cartridge with its color-coded slot and then insert the ink cartridge into the slot. To ensure proper contact, press down firmly on the cartridges until they snap into place.
  4. Close the ink cartridge cover.
Figure 1: Installing cartridges c00841893.gif 1 - Open the ink cartridge cover. 2 - Remove the ink cartridges from the packages. 3 - Install the ink cartridges. 4 - Close the ink cartridge cover. Step two: Install the printheads Follow the steps below to install the printheads.
  1. Open the top cover of the printer. Figure 2: Open the top cover c00848391.gif
  2. If the carriage does not move to the left automatically, press and hold the Resume button (c00847980.gif ) for three seconds. Wait for the carriage to stop moving.
  3. Remove the cardboard cover from the printhead carriage. Figure 3: Remove the cardboard cover c00848392.gif
  4. Lift the printhead latch. Figure 4: Lift the printhead latch c00848393.gif
  5. Before installing a printhead, shake the printhead up and down at least six times while the printhead is still in its packaging. Figure 5: Shake the printhead while it is still in its packaging c00847983.gif
  6. Remove the new printhead from its package, and then remove its orange protective caps. CAUTION: Do not shake printheads after the caps are removed. Figure 6: Remove the printhead from its packaging, then remove the orange caps from the printhead c00847984.gif
  7. Insert the printhead into its color-coded slot. The label on the printhead must match the label on the printhead latch. Press down firmly on the printhead to ensure proper contact. Figure 7: Insert the printheads in the correct color-coded slots c00847985.gif
  8. Pull the printhead latch all the way forward, and then press down to ensure that the latch is properly engaged. You might have to apply some pressure to engage the latch. Figure 8: Close the latch c00848394.gif
  9. Close the top cover. Figure 9: Close the top cover c00847987.gif
Step three: Align the print heads Whenever you insert or replace a printhead, the printer automatically aligns the printheads to ensure the best print quality. If the printer does not print the alignment page automatically, start the alignment process manually. To start the alignment process manually:
  1. Press the Setup button on the control panel Setup and the number 6 on the keypad or scroll to Tools .
  2. Press 4 on the keypad or scroll to Align Printer . The alignment process starts.

Dec 01, 2008 | HP Officejet Pro L7780 All-In-One InkJet...

9 Answers

HP Photosmart C3100 series


I just got off the HP help line.  After changing my black ink cartridge a test page was printing each time I turned the machine on.  This is very costly, in both time and ink as the cartridges themselves for this machine hold very little ink.  I tried to learn from HP tech how to turn off the test-print while keeping my color cartridge empty.  It turns out that you cant do it.  HP requires you to keep buying and using cartridges whether you need them or not.If you buy the color ink it will use it up in its testings.  And if you dont buy the color cartridge it will use up your black ink by printing the test each time you turn on the printer.  The printer was inexpensive sure, but I'm paying for it in wasted ink. 

Dec 26, 2007 | HP Photosmart C3180 All-In-One InkJet...

4 Answers

Problem printing with HP Business inkjet 1200


I have a HP Business Inkjet 1220 Printer, and the block ink cartridge light is flashing. I replaced the cartridge with a brand new one, closed the door, and black ink light is still flashing. I put in another neew black ink cartridge, closed the door, and same issue- black cartidge ink light flashing. I cannot print- what to do?

Oct 28, 2007 | HP Business Inkjet 1200dtn Printer

9 Answers

Ink cartridge alignment problem


well, what i did, and it seemed to work, in the short run anyway. i took and threw my hp in the back of a waste management truck,  then i called amazon.com and i ordered a new epson printer,

Oct 26, 2007 | HP PhotoSmart C4180 All-in-One Color...

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