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Hello thanks for using Fixya In HP Officejet J5780 All-In-One InkJet Printer cleaning the cartridge is not difficult, but it is
important to use the appropriate technique. The things you need is
"Cotton swabs" & "Distilled water" Now follow this procedure
Open the front door of the printer, located below the scanner
lid, by swinging it down. The print cartridges will move to a position
where they can be accessed
Unplug the printer to prevent the cartridge dock from moving away from the center of the printer.
Press an ink cartridge down until you feel a "click" then pull it out of the dock.
Dip a cotton swab in distilled water and use it to clean any
built-up ink from the metal contacts on the ink cartridge and from the
area around the ink nozzle. Avoid touching the nozzle itself, which is
located in the center of the bottom of the cartridge. Discard the cotton
swab if it becomes dirty, and use another to continue cleaning. Keep
cleaning until the ink cartridge is no longer dirty, then set the ink
Remove the second ink cartridge and repeat the cleaning process. Set both cartridges aside until they are completely dry
Replace an ink cartridge by holding it slightly below the
dock, then pushing it up and in until it snaps into place. Do the same
with the second cartridge. The black cartridge is inserted into the
right slot on the dock, while the color cartridge is inserted into the
Close the front door of the printer, plug the printer back in, and turn it on.
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Dip the bottom of the cartridge in some hot water. This should open the head so the ink can flow out freely. Once the ink is flowing into the water remove and dry the whole cartridge. Insert into printer and print.
Several Steps to take.
If all else fails try a new or different cartridge before you get too carried away looking at the printer for the problem.
1. Turn off the printer and unplug it from the power source for approx. 30 seconds (some units take this long to bleed the power out of the unit).
2. Plug in the printer and step thru the start up procedure (turn it on what ever - not the set up program).
3. Retry the cartridge alignment procedure.
4. If alignment still fails verify that the cartridge electrical contacts are clean and the jet opening is not blocked.
5. Reinstall after cleaning and checking.
No problem. You can access the instructions online. Go here and you'll see their complete instructions, and troubleshooting guide if you have errors you can't sort out.
I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread. If I've managed to answer your question or solve a problem, please take a moment to kindly rate this post....thanks!
u better check the catridges first specially black catridge,or get it tested on any other printer,but before that wipe the back side circuit section of the catridge with a tissue paper,n try,if the catridge is ok then the catride unit is has to be replaced