My HP series II (with add on post-script)is still running strong....cases and cases and cases and cases of paper, year after year after year... later. It is a dinosaur.(One repair on the "pick-up-bar" and sometimes a "dab" of glycerin)
One of HP-II strengths is the full replacment of the "polished drum" with toner replacement. OKI-Data's drum replacement could drive you to tears.
For a color equivilant to HP I would switch and go with the Cannon's ImagevCLASS MF8170c Laser Printer...I used its equivilent four years ago on the job (when I had a job)and placed next to a Time/USNWR magazine the image far surpassed ink on clay/cellulose.
Sincerely,
Gargoyle