Very good reading material Arvid,
I'm going to have to look up the data sheet information for my steppers now.
Maybe one of you have already done so and could post the specs. The steppers are from a few old HP Laserjet III's
LABELED: Astrosyn
TYPE: 23LM-C701-01
P/N: RH7-1048 04
5.2 V/Phase
1.4 A/Phase
1.8 Degree/Step