Incidentally, I got a reply from HP Tech Support. Here it is: QUOTE: Hello Frank, Thank you for your continued cooperation in addressing this issue. Your patience is very much appreciated. You can perform cleaning by pressing the GO button for 15 seconds and you can calibrate the printer by pressing GO and ROTATE CAROUSEL simultaneously. Once again, thank you for your cooperation in addressing this issue. END OF QUOTE
So there it is. I don't know why they couldn't tell me that when I asked them the first time. Now I guess there is no reason not to recommend this printer to folks who might need a colour laser that works with Linux. It is a nice printer, the little bit that I have printed with it so far.
