The motor on the printer has only 2 lines. Is it a stepper motor?
If it is a DC motor, the position is detected by an encoder. The encoder transmits the detected data to the controller, and the controller analyzes and controls the motor to rotate. If grating disk detection, it should be this way: the motor received 1 pulses, it will rotate the corresponding angle of the 1 pulses, so as to achieve displacement. The above is a personal view, you can refer to the servo motor related information.
2 、 brushless DC motor is composed of motor main body and driver. It is a typical electromechanical integration product. Brushless motor is a brushless or commutator (or collector ring) of the motor, also known as non commutator motor.
In the case of non overloaded, the motor speed and stop position depends only on the pulse frequency and pulse number, regardless of load changes, when the stepper driver receives a pulse signal, it drives stepper motor to set the direction of rotation of a fixed angle, called "step", it is the rotation of the fixed point of the operation step by step.
1, stepper motor is to change the electrical pulse signal to angular displacement or linear displacement of the open-loop control element stepper motor.
