Registration Motor Control Circuit - Toshiba e-STUDIO520 Service Manual

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Registration motor control circuit

The registration motor is a stepping motor driven by the control signal output from the main CPU on the

LGC board and rotates the registration roller.

The main CPU outputs each phase signal (RGTA-0, RGTB-0, RGTC-0, RGTD-0) to the motor driver.

The motor driver converts this phase signal into a +24 V pulse signal (RGTA-0A, RGTB-0A, RGTC-0A,

RGTD-0A) and outputs it to the motor. Also, the rotation speed of the motor can be switched by chang-

ing the output timing of each pulse signal.

Registration motor drive signal

Pulse signal

e-STUDIO520/600/720/850 PAPER FEEDING SYSTEM

Motor status

Rotation when accelerating/

decelerating

Rotation at a constant speed

Motor driver

Registration

E-studio600 E-studio720 E-studio850