You've got me scratching my head.
A jointer planes the board's bottom surface and makes it flat.... there is no "planer" in the the word jointer although it does plane or remove material.
A "thickness planer" removes material from the top of the board that has been previously flattened by the jointer making both surfaces a uniform thickness and parallel. Folks always drop the word "thickness" when describing this machine, but it is an important part of the terminology.
I don't know what a surface planer
unless it's a hand plane?
I am a stickler for using the proper terms in the discussion, especially for a beginner who may be confused by the slight differences in terminology and who may not know the distinction.