rottie*loverasked Apr 26, 2010 at 8:02pm
HP Officejet Pro L7680-problems w/black print head
I tried a new black ink cartridge, but had the same effect. What's funny, though, is that the yellow prints just fine (combo black/yellow printhead).
Any ideas? I would like to try anything before having to buy a new black/yellow printhead.
I've followed the advice in the thread above (removed B/Y print head, used reasonably hot water, carefully dried, reinstalled ...) No Joy!. Ordered and installed new original equipment HP replacement print head but got the same result "Missing or damaged..." Printer has been offline and powered down for as much as three weeks so I believe power reset is not an issue.
"Product" was purchased in August 2008 so (I believe) is long out of warrenty.
I'm happy to tackle on-site repairs if anyone can suggest a procedure. Lacking success with that, I'm about ready to pass the "Product" off to a printer repair guy if the repair quote dosen't approach the cost of replacement.
Any thoughts or suggestions would be greatly appreciated.
BTW Several years ago I repaired a now departed HP printer with new rubber paper feed rollers, etc, based on advice from FixYourOwnPrinter - Many thanks for sound clear advice/instructions in the past, hoping for similar feedback now.
Tried the printer's head cleaning utility without success.
Then tried the boiling water trick suggested by moe.
We then ran the head cleaner again- still black all over the prints.
Then we tried the boiling water, followed by blasting into the print head holes with 60psi compressed air.
Ran the head cleaning one more time---success at last!
Who knows what actually fixed things?
Also, we suspect that our problem may have been caused by using non-HP ink cartridges, but not sure about that either.
Need help please...really do not want to buy new print heads and if I do, i know that the message will not go away.
There not expensive and HP actually sell them online at findmysupplies but at a cheaper rate than they sell them in the shop.
You can also get loads of refilled cartridges elsewhere.
p.s. the way you get to the printheads is to open the printer (lift the front and it the top will tilt up and back) and hold the OK button down until the printheads move all the way left on the carriage. HP's website has a video that shows it.
Try holding the black one in the very hot water for a couple of minutes, then dry it on a paper towel by blotting several times. You may not be holding the right part of it in the water. Try everything!! It really will work!!
THank you for the help. I did the almost boiling water thing 6 times, blotting with a very soft paper towel in between, and it worked perfectly!
I used distilled water, available at every grocery store, to insure there were no minerals that would be deposited on the print head.
Picked this printer up at the last day of a garage sale, and the folks gave it to me as no one wanted to buy it because it had no power cord, no instruction manual, no usb cord.
SO I went to our local Goodwill Electronics store, got the correct power cord, downloaded the manual and software from HP.com and now that the printhead is fixed, I am a very happy camper! Bouth all HP original ink in the XL size and even though it was pricey to start, I can now print over 2,000 pages in B&W.
Speaking of Goodwill stores, if you have a "Electronics" outlet in your city, make it a point to visit them. I am buying perfect condition Dell 17" flat screens for 20.00, desktop boxes w/2gb mem and 500gb HD for $49.00. They even sell the new ink cartridges folks include with the printer they donate for 3.00 a cartridge.
Oh, and regular dvd players for tv for 9.00, and in case you ever need one, dozens of top shelf vcr's for 3.00.
Just amazing stuff and all proceeds good to a great charity.
Stero rack components for 10.00 per unit, TVs, movie lights, speakers up the wazoo...... check them out, it's a blast.
All the ones I have been in use differnt colored price tags and everyday of the week they pick a color tag and make it half price. So get a gorgeous flat screen, thin monitor for 15.00!
I selected the printhead cleaning option in *tools on the display. I preformed it multiple times. No use.
I first tried to dab the bottom of the printhead with a lightly damped q-tip. This seemed to make the problem worse. I then found this thread. After cleaning/swooshing (the bottom part where the ink comes out) lightly in hot water from the kettle it worked. I was only 92\% pleased with the outcome. I repeated the process again. I am now 99\% pleased.
Good post, keep it going!
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