The steppers are labeled with a voltage and a resistance. Ohms law will give you the current. In this case I = E/R ( 1.68V / 0.7ohms = 2.4A).
Those are small body steppers. One would *guess* that that are low torque running at full current. They may (or may not) be up to delivering enough torque for normal printer tasks when run off normal drivers. "Real" steppers (reasonable current and torque) are only $10 to $15. They are not the big cost in building a printer.
Those are small body steppers. One would *guess* that that are low torque running at full current. They may (or may not) be up to delivering enough torque for normal printer tasks when run off normal drivers. "Real" steppers (reasonable current and torque) are only $10 to $15. They are not the big cost in building a printer.