故障一 3070打印机工作一段时间后,不走纸,打印出一条黑印。用手触摸走纸电机和电机驱动集成块IC_(43),发现温度过高。 故障分析与排除 走纸电机是四相步进电机,其驱动电流由TD62064四功率反相驱动器提供。当步进电机不转动时,要将它锁住。由于步进电机锁住电流较大,会使电机和驱动集成块耗电大而发 Failure 3070 printer work for a period of time, do not take the paper, print out a black print. Touch the paper feed motor and the motor drive manifold IC_ (43) by hand to find the temperature is too high. Fault Analysis and Troubleshooting The paper feed motor is a four-phase stepper motor, the drive current provided by the TD62064 four-power inverting drive. When the stepper motor does not rotate, it should be locked. As the stepping motor lock current is larger, will make the motor and drive manifold power consumption and hair