>>ran ok (more or less) for about 30 minutes after the original warranty expired.<<
That is a design feature that ensures you are up to date with the latest cheap low durability plastic rubbish.
I have an HP Color (Colour as far as I am concerned) LaserJet CP1515n which works very well on the two occasions a year that I actually need to print something. Everything else gets PDFed. The cartridges are of course more expensive than the printer.
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sj