Question about HP Officejet Pro K850 InkJet Printer

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Cleaning nozzle of k850 - HP Officejet Pro K850 InkJet Printer

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Please follow steps below :

1. Click start button of your desktop

2. go to printers and faxes, right click on your Printer icon then click properties.

3. Click tools tab, locate the clean ink head (make sure you have a paper on your printer.ok?)

Posted on Jul 13, 2010

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Posted on Jan 02, 2017

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K850 printhead


How did you determine printhead problem. If not printing, try this.:
install cartridges correctly and check if settings ok.
from tools menu, clean and allign cartridges.
make this your default printer.
goodluck

Aug 14, 2013 | HP Officejet Pro K850 InkJet Printer

1 Answer

I installed a new cyan cart but found air got into the pipe between the cart and printhead - how do I clean that out


Run the printer nozzle clean function available form the Printer Toolbox software or try pressing and holding down the Power button for 3 to 10 seconds. Be sure to have about 10 pages of paper in the printer. Do not run this too frequently as it uses a lot of ink.

Apr 14, 2011 | HP Officejet Pro K850 InkJet Printer

1 Answer

One page printing than 3 head light blinking c/m/y


pls clean and oiling the catridge rod of your printer.

Jun 25, 2009 | HP Officejet Pro K850 InkJet Printer

1 Answer

I have a hp officejet k850. Intermittently the text is unclear.It has lines and dots through it. I have replaced the printheads and that did not solve the problem.


Have you tried using the print quality diagnostics to determine whether alignment or other tools may correct this problem? See link here. Also consider the possibility that the nozzles are clogging. See link here. If you have no luck with either of those remedies, you may consider the option discussed in this forum as a final resort...

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 just a moment to rate this post....thanks!

Jun 16, 2009 | HP Officejet Pro K850 InkJet Printer

1 Answer

HP K850 cartridge problem


I had the same problem, all cartridges lights came on.
I did two things:

1st: I clean the print cartridges plugs with Q-tips, just to insure there wasn't any ink build on the plugs. If you look were the cartridges are, you will see four plugs one for each of the cartridges. Each plug has four contacts. They should be a bright metal color. If they dull in color, they have ink on them. Unplug the printer and pull all the cartridges out and gentlely wipe the the contacts with Q-tips. Re-stall all the cartridges.

Note: The cleaning did not solve my problem but its good maintenance since in was looking for a solution.

2nd: What work for me was I un-stall my printer totally. Turn off the printer then turn off the computer, had a cup of tea, rebooted the computer and re-install the HP cd disk and drivers, turn the printer back on. After I reinstall the software and put the printer back on my network, everything is working fine for the last two days. The lites are off and the HP toolbox is reading the ink cartridges status correctly. I believe that a virus change the printer drives.

Solution by;
eagleeye140

Apr 10, 2009 | HP Officejet Pro K850 InkJet Printer

1 Answer

Sony k850


U must change touch pad. It was damaged by liquid.

Aug 20, 2008 | Sony Ericsson W850i Cellular Phone

2 Answers

Help...hp k850 cannot print A3 size paper


download the new driver from HP site. And that is it

Aug 22, 2007 | HP Officejet Pro K850 InkJet Printer

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