Toshiba e-studio550 Service Manual page 218

14. 5. 2. Control signals
(1) HTRCK signal (LGC → MOT:Input)
This signal is a reference clock signal for the fuser motor to rotate at a fixed speed.
The frequency of the reference clock is 1247.6Hz.
(2) HTRML signal (LGC → MOT:Input)
This signal switches low-speed fuser motor rotation ON/OFF. When the signal is "L", the fuser motor
rotates at a low speed.
(3) HTRMT signal (LGC → MOT:Input)
This signal is the fuser motor ON/OFF control signal. When the signal changes to "L", the fuser motor
is turned ON.
Signal level for motor circuit
Signal
HTRCK
HTRMT
HTRML
e-STUDIO550/650/810 FUSER UNIT
"H" level
Reference clock (1247.6Hz)
Motor OFF Motor low-speed ON
Motor OFF Motor ON
14 - 12
"L" level
JUNE 2002 © TOSHIBA TEC