Drive Circuit Of Transport Motor - Toshiba e-STUDIO281c Service Manual

9.3.2

Drive circuit of transport motor

The transport motor (M9) is a DC brushless motor. At color printing modes with thick paper or OHP film,
the transport speed is lowered to 1/2 or 1/3 depending on its mode for most effective fusing.
The following is the block diagram of the transport motor (M9).
LGC board
Gate array
Signal level of motor circuit
Signal
FDMON
FDMCW
FDMGA
FDMCK
FDMPL
* FDMCW (rotational direction signal): The motor does not rotate backward (CCW) in actual move-
ment.
June 2005 © TOSHIBA TEC
#1
+5.1V
Fig.9-4
Level "H" Level "L"
OFF ON
CCW CW
High speed Low speed
— —
Unlocked Locked
9 - 5
+24V
FDMON
FDMCW
FDMGA
FDMCK
FDMPL
Transport motor
Remarks
Transport motor ON signal
Transport motor rotational direction signal
Transport motor speed switching signal
Transport motor reference clock signal
Transport motor PLL signal
e-STUDIO281c/351c/451c DRIVE SYSTEM
9