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AR-651/810 FUSER UNIT 14 - 12
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
“H” level
“L” level
HTRCK
Reference clock (1247.6Hz)
HTRMT
Motor OFF
Motor low-speed ON
HTRML
Motor OFF
Motor ON
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