Toshiba 4511, 3511 manual Scanning drive circuit, PS-ACC-350

6.3.2 Scanning drive circuit

The scan motor is a 2-phase stepping motor and driven by the driver IC-STK-672-071.

PS-ACC-350
		+24V
			+24V	B
			DIG	+24V
		GND		B
	SCNVREF	Voltage to set value for		A
		motor current	SCNREF
				+24V
	SCCLK-0	Clock input		A
			SCNCLK
Scanner	SMDT2-1	Excitation mode setting (3)	SCNMD3
CPU
	SMDT1-1	Excitation mode setting (2)
			SCNMD2
	SMDT0-1	Excitation mode setting (1)	SCNMD1
	CWCCW-0	Rotation direction setting	SCNDIR
	H.OFF-0	Cut off output	SCNEN
	MOTRST	Reset	SCNRST
		+5V
			+5V
	RESET ICE
			GND
		GND
PWA-F-SLG		PWA-F-SDV-350

Fig. 6-302

M

Scan motor

6

November 2003 © TOSHIBA TEC 6 - 5 e-STUDIO3511/4511 SCANNER