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November 2003 © TOSHIBA TEC 6 - 5 e-STUDIO3511/4511 SCANNER
6
6.3.2 Scanning drive circuit
The scan motor is a 2-phase stepping motor and driven by the driver IC-STK-672-071.
GND
B
+24V
B
A
+24V
A
+24V
DIG
GND
Voltage to set value for
motor current
Clock input
Cut off output
Reset
Excitation mode setting
(
3
)
Excitation mode setting
(
2
)
Excitation mode setting
(
1
)
Rotation direction setting
RESET ICE
Scanner
CPU
GND
+24V
+5V
+5V
M
Scan motor
H.OFF-0
CWCCW-0
MOTRST
SCNVREF
PS-ACC-350
SMDT2-1
SMDT1-1
SMDT0-1
SCCLK-0
SCNEN
SCNDIR
SCNRST
SCNREF
SCNMD3
SCNMD2
SCNMD1
SCNCLK
PWA-F-SLG PWA-F-SDV-350
Fig. 6-302