If I remember it correctly RCP-40 was a Cibachrome processor. I almost jumped into one (cheaply) for a purpose of converting it for EP-2 (EP-200) paper processing. That was maybe 15 or 20 years ago.
Just did some internet search and found that RCP-40 is indeed a RA-4 paper processor, not a Ciba one. I was actually thinking about an Ilford CAP-40, which was a Ciba processor.