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HP Designjet 4500ps InkJet Printer Questions & Answers
26.001 error hp 4000
26.0:01 is a bad contact in the Ink Supply System for the yellow ink cartridge. (This can be caused by using non HP OEM ink)Check that the ISS to Cartridge cable is not damaged and is fully connected to the Ink Supply Tubes PCA.You can also try switching the magenta contacts with the yellow contacts and see if the problem stays with the yellow, or you now have a magenta problem.If the problem stays with the yellow, then you will need to replace the Ink Supply Tubes and Trailing Cable.If the problem moves to the magenta, then you just need to repair or replace the contacts (may just need cleaned)Good luck ! (My money is on bad compatible or refilled yellow ink cartridges)
Error 79:04 HP 650T
79 errors are usually bad firmware that needs replaced or updated. Sometimes it is simply a bad print job being sent. Check to see if only one print job is causing this error, or if it happens with everything you try to print.
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