St Transfer Roller Cam Motor Control Circuit - Toshiba e-STUDIO2330C Service Manual

14.5.2

1st transfer roller cam motor control circuit

The 1st transfer roller cam motor is a DC motor driven by the control signal output from the ASIC on the
LGC board and rotates the 1st transfer roller cam to contact/release each 1st transfer roller for Y, M and
C color to/from the transfer belt.
The motor driver outputs the drive signal (TBLTM1A-0A, TBLTM1B-1A) to the motor based on the
control signal (TBLTM1A-0C, TBLTM1B-1C) output from the ASIC. The motor operates the rotation,
stop or brake according to the status of these drive signals.
LGC board
TBLTM1A-0C
IC60
ASIC
TBLTM1B-1C
Control signal
ASIC output
TBLTM1A-0C TBLTM1B-1C
L
L
H
H
e-STUDIO2330C/2820C/2830C/3520C/3530C/4520C
TRANSFER UNIT
+24VD3
IC59
IC35
Motor driver
PG
Fig. 14-4
Signal
Motor driver output
TBLTM1A-0A
L OFF (high impedance)
H L
L H
H H
14 - 10
TBLTM1A-0A
F2
TBLTM1B-1A
TBLTM1B-1A
Stop
H Rotation
L Unused
H Brake
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1st transfer roller
cam motor
Motor status