With capabilities of accurate positioning and a fast response to starting, stopping and reversing, a stepper motor is well suited for printers. The rotational speed of a stepper motor is solely dependent on

Stepper motor

• A stepper motor is a brushless DC electric motor that divides a full rotation into a number of equal steps.
• The motor's position can be commanded to move and hold at one of these steps with the help of position sensors connected in feedback.
• It is excellent property to start, stop and reverse its position, hence it is well suited for printers.
• The rotating speed of the stepper motor is determined by the speed of the pulse frequency (Hz) given to the driver.
• The position of motor rotation can be changed by changing the number of input pulses or frequencies to the driver.
• The step angle of the motor can be calculated by dividing the 360° by number of steps a motor takes to complete one revolution.
• The step angle of the stepper motor depends upon stator and rotor poles and number of phases.