Question about HP Officejet Pro L7650 Printer

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My HP Officejet Pro L7650 prints yellow instead of black

It has been doing this for days now. I have changed the black ink cartridge and it is still printing in yellow. Please help.

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Normal 0 Could have a corrupt driver.
Disconnect the printer or at least be sure it is turned off. I'd do both and when the CD software program asks you to connect the printer to the USB port, do so and it should again work properly.
Hope this helps. Bud

Posted on Jan 29, 2009

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1 Answer

My HP Officejet Pro L7650 printer says "Cannot


Hi

Firstly you should check if there is any covering on the ink nozzles
Did you try to allign the print catridges after you changed the same.
Take out the catridges and clean it with a piece of cloth again put it back and check
if still it doesn't work
If you have done it perform a semi full reset:-
Unplug the power cable at the back of the printer
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My HP OfficeJet L7680 just stopped printing ANYTHING black. I change the black cartridge twice.I cleaned the printer heads, aligned it and still it will no longer print anyhting in black. When I do a test...


It sounds like your printer setup has changed to generating black by MIXING the color inks... if you run out of the cyan and yellow it will do red in spite of how many changes you make of the black cartridge.

Investigate the setup for the printer to make sure it is set for black from the black cartridge.

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1 Answer

Officejet Pro L7650 black/yellow print head problem


There isn't a good fix for this problem. You can try the following;
1. Plug Unit Directly into wall, not thru a powerstrip.
2. Reset the Printer, Unplug Power Supply, Wait 30 Secs. Re-connect. Turn Power Back On.
3. Open Case, Wait for Printheads to move to right. Take Out Offending Printhead. Clean Gold Contacts / Soak Print Nozzles in 1/8" Water, if dried out. shake printhead to loosen stuck nozzles (watch out for flying ink!!). DO NOT PUT PRINTHEAD BACK IN YET!! Close Cover. Wait for printer to say "XXX Printhead is missing" Re-Open Cover, Wait till printheads move to right, Re-Insert Printhead, Close Cover. Reset if Necessary.
4. BTW None of this worked for me. I'm gonna see if anyone I know has one of these printers and swap out parts to see if it is indeed the printhead(s).
5. According to other posts, HP Service will tell you to try all of the above, then when it doesn't work, they tell you your printer is defective. Someone else mentioned a bad firmware problem. If you're out of warranty, your screwed. Another HP Horror Story! Oh My! California wants to elect their old CEO. lol.

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My copier is printing yellow throughout the page when it shouldnt


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1 Answer

HP officejet pro 8500 ink cartridge problem


Changing a printer cartridge is not complex but improper handling of the parts may damage the printer and the cartridge. If the user notices that while printing the ink comes out dry or faded, it may be time to change the ink or the toner. The user will know if it is time to change the toner because instead of a sharp image, one will get a faded image. It is time to change the ink cartridge when the printing comes out spotty or colors are used to replace others —for instance, blue for black or yellow for red. Remember, faded images signal the need to change the toner; spotty printing signals the need to change the ink cartridge get more help for change cartridge .
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1 Answer

HP Officejet Pro L7650 Print head problem


The reason why the printer refuses to print if you get low on one or more colors is that the system runs off negative pressure through the ink lines to the print head. If you were able to continue printing with an empty cartridge you could get air in the respective ink line, disrupt the negative pressure, make it so that that color will no longer print, and require you to get the printer serviced to fix the problem. I own a Cartridge World ink refilling store and I feel this is a good machine (compared to some of the others out there). The only down side with this type of machine is the print heads expiring or getting clogged as you are experiencing. The reason the black is clogged and not the other colors is that the black ink is pigment based and the colors are dye based. The pigment based inks do tend to clog print heads over time. You can try to rehydrate the print head with warm distilled water. if you can't get it working to your satisfaction you can buy a new black/yellow print head for $72. With this type of printer you should print at least one black and white and one color document per week to keep the print heads fresh. If they sit too long without ink flowing through them then they can get clogged and print poorly. I hope this helps belay some of the resentment you hold towards your printer.

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1 Answer

Hp officejet pro L7650 will not print yellow ink


verify if you have ink in yellow cartridge
perhabs you should change it

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