Toshiba 4511, 3511 manual Drive circuit of main motor, Signal level of motor circuit

9.2.2 Drive circuit of main motor

PK0 62385

PK1

7407

PK2

Gate array

PK3

DCCLK1

PWA-F-LGC

Fig. 9-202

MAMON

MAMBK

MAMCW

MAMGA

MAMCK

MAMPL

Main Motor

9

9.2.3 Signal level of motor circuit

Signal	Level “L”		Level “H”	Remarks
MAMON	ON		OFF	Main motor ON signal
MAMBK	Braking		Normal	Main motor brake signal
MAMCW	CW		CCW	Main motor rotational direction signal
MAMGA	Low speed		High speed	Main motor speed switching signal
MAMCK	—		—	Main motor reference clock signal
MAMPL	Normal		Out of control	Main motor PLL signal
* CCW: forward rotation		CW: backward rotation

(1)The control signal from LGC controls the operations of the main motor, such as switching of ON/OFF, a rotational direction, a rotational speed, etc. The rotational speed is decided by clock frequency output at the main motor. The speed is lowered to the range from 1/2 to 1/4 at the Thick Paper/OHP Film Mode. This switching is performed between the completion of the 1st transfer and that of the 2nd transfer.

November 2003 © TOSHIBA TEC 9 - 3 e-STUDIO3511/4511 DRIVE SYSTEM