%Space Motor ControlSpace Motor ControlThe SP/LF motor driver (Location 5A: MHM2025) drives the three-phase brushless motor. Motormovement is based on the phase signal (SPU,SPV and SPW) and the speed instruction data from theLSI. The MPU can identify the current speed of the space motor by measuring the pulse width of theoutput (Phase A, Phase B) of the encoder disk sensor.After comparing the target speed for each print mode with the actual speed, the motor is accelerated ordecelerated to maintain the desired speed for each print mode.ML520/521 ( 96-02-04 )
