I'm having a similar problem. I have an HP LaserJet Pro 400 color M451dw. I've never had problems before but got a 79 error when printing one particular pdf file with a lot of graphics. (It appears that I can't upload it since I don't have priviledges.) I'm connected via usb to the printer, so it's not a network issue. I submitted the file via eprint also, and it wouldn't print. I tried all the recommended steps, turning on and off, etc. It seems odd since I've printed many other graphics heavy files with no problems at all. I subsequently printed a color pdf file which was much larger and it worked fine. Can anybody advise please?
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