HP Bus IJ 2800 printhead problems
Got a few problems with one of our HP BI 2800. Last week it said the yellow printhead needed replacing (it had far exceeded the warranted usage so I was happy with that). I replaced it and it was then fine.
Yesterday was told all 3 colour printheads then needed replacing (including the yellow which was showing as 0 usage). Quite bizarre, even though the other 2 colours where only at 70% warranted usage. We replaced the other 2 anyway so all 3 colours where then 0 usage and the black is only 10% used.
Someone prints 1 page and again the colour printheads say replace and all show as 0 usage. The printheads have exceeded the warranty period (been stored for a while) but otherwise are brand new/unopened.
Now, is this a problem with the printer detecting them incorrectly or do the printheads have the same "expired" issue as the cartridges? What's odd is that the black was replaced about 2 weeks ago and has the same warranty date as the colours but that still shows as "good" and the printer only detects the yellow as being out of warranty.