Cannibalizing a printer, how to figure out what some of the parts are/do
It's probably a "Brushless DC Motor" (BLDCM or BLDC motor). 

If so it will have a controller on board.

The following is experienced based guesswork


/ACC = accelerate motor when grounded (/ indicating low)
/ DEC = decelerate motor when grounded.
Vcc is probably 24V but just may be eg 5V.
Gnd - something has to be easy ;-) = ground.


/ FG may be "frame ground". But maybe not.

I'd be tempted to find old printers in a dumpster and tear them apart rather than buy one like this BUT it does seem to be a very capable motor from the rating plate. Have you asked the supplier of they have a basic data sheet - you'd hope they would have when selling something like this.

TRY


Connect ground to ground. So far so good. 
Connect 12V or so to Vcc via a 100 R ( = 100 ohm) resistor.
Ground /ACC via a 1k or so resistor.


IF the motor responds go from there.

If not,try 24 V, but I'd be mildly nervous.

Once/if it shows signs of rotating (even a kick) you can try removing the 100 R resistor. 

FG may need to be grounded.

If there is an onboard IC it may give some clues. 

Report.