Toshiba e-studio550 Service Manual page 179

12. 4. Motor Drive Circuit
12. 4. 1. New toner supply motor
The new toner supply motor (brush motor) is a motor for supplying toner to the developer unit from the
toner cartridge. It is driven by the motor driver IC38, and its circuit configuration is shown in the
following.
Gate array
IC56
Signal level for motor circuit
TRSM1A-0 TRSM1B-0
L
Level H
L
H
e-STUDIO550/650/810 DEVELOPER UNIT
TRSM1A-0
Motor
driver
TRSM1B-0
IC38
Signal
L OFF
L CW (when supplying toner)
H CCW (detecting cartridge installation)
H Brake
New toner supply motor
State
12 - 6 JUNE 2002 © TOSHIBA TEC