20 Most Recent HP Officejet Pro K850 InkJet Printer Questions & Answers

Printer went berserk. Uninstall it and then reinstall it.

HI, I am sharing more links and every links different different types given solutions. So your are own according choose topic and read it, i hope solved your issues. http://h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay?javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken&javax.portlet.prp_ba847bafb2a2d782fcbb0710b053ce01=wsrp-navigationalState%3DdocId%253Demr_na-c00491286-3%257CdocLocale%253D%257CcalledBy%253D&javax.portlet.tpst=ba847bafb2a2d782fcbb0710b053ce01&ac.admitted=1401380600371.876444892.492883150 http://h20565.www2.hp.com/portal/site/hpsc/public/psi/troubleshootResults/?lang=en&cc=us&sp4ts.oid=1101941 http://www.helpowl.com/p/Hewlett-Packard/K850/Research/34551?search=k850%20disassembly Thanks, HP Printer Support

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

The Power light is on and the Resume light blinks. The printer is out of paper. &#... the printer, and press (Resume button). The Power light and the Resume light are on. A cover is not closed completely. ?... completely. ?

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.

Try re-seating the ink cartridges and printing a test page. Those were new HP cartridges, right? Not some garbage from a ink cartridge refiller off ebay?