Scanning Drive Circuit - Toshiba e-STUDIO 200L Service Manual

6.3.2

Scanning drive circuit

The scan motor is a 2-phase stepping motor and driven by the motor driver (IC16).
SLG board
e-STUDIO200L/230/230L/280/280S
MOTREF
Scanner
CPU
e-STUDIO202L/232/282
MOTCLK
MOTMD3
MOTMD2
MOTMD1
MOTDIR
MOTEN
MOTRST
RESET IC
June 2004 © TOSHIBA TEC
+24V
GND
GND
Voltage to set value for
motor current
+5V
GND
Clock input
Excitation mode setting ( 3 )
Excitation mode setting ( 2 )
Excitation mode setting ( 1 )
Rotation direction setting
Cut off output
Reset
+5V
GND
Fig. 6-7
6 - 5
05/11
+24V
B
DG +24V
B
M
A
Scan motor
+24V
A
VREF
Motor driver
CLK
M3
M2
M1
CWB
EN
RESET
+5V
GND
e-STUDIO200L/202L/230/232/280/282 SCANNER
6