So I gutted an old printer last night and found a few rods, motors and gears for my parts stockpile.
I started typing motor details into Google and identified the one as being a 12V stepper, but the datasheet is very limited. From the 6 pins I realized it has to be a Unipolar motor. I started testing the resistances between the pins and realised that the 2 centre taps are connected together.
Since my driver has a H-Bridge I need a Bipolar configuration and started investating if the two centre taps are joined internally of externally.