There are 6 windings. Each 2 opposite windings are connected in series. Each winding has a resistance of 37 ohm.
I salvaged 3 okidata microline printers from an office and have three of these motors (thinking they might work in a cnc mill).
On the board they have the code OKI GKH-4. I have not yet been able to find a data sheet or other technical info.