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November 2003 © TOSHIBA TEC 9 - 5 e-STUDIO3511/4511 DRIVE SYSTEM
9
9.3.2 Drive circuit of transport motor
The transport motor is a DC brushless motor. At color printing modes with thick paper or OHP film, the
transport speed is lowered to 1/2, 1/3 or 1/4 depending on its mode for most effective fusing.
The following is the block diagram of the transport motor.
FDMCW
FDMGA
FDMON
FDMPL
PWA-F-LGC Feed Motor
7407
62385
7407
FDMCK
PJ5
PJ7
PJ6
DCCLK2
PI2
Gate array
Fig. 9-302
Signal level of motor circuit
Signal Level “H” Level “L” Remarks
FDMCW CCW CW Transport motor rotational direction signal
FDMON OFF ON Transport motor ON signal
FDMGA High speed Low speed Transport motor speed switching signal
FDMCK — — Transport motor reference clock signal
FDMPL Out of control Normal Transport motor PLL signal
* FDMCW (rotational direction signal): The motor does not rotate backward (CCW) in actual movement.