Canon LBP351 Series Service Manual page 40

+24VC
Fixing heater
drive circuit
■ Fixing Pressure/Disengagement Control
The Fixing Film Unit is disengaged from the Pressure Roller under a specific condition in order to improve jam removability.
AC input
Power Supply PCB
Zero crossing
circuit
Fixing heater
Relay
Relay
(RL102) safety circuit
(RL101)
Current
detection circuit
JP1001
100V: Open
200V: Close
2
J128
1
/ZEROX
/RLD
CURRMS
FSRD1/FSRD2
FSRTH2
/AC200
FSRTH1
TH2
TH1
TP1
H1
33
2. Technical Explanation (Device)
DC controller
CPU
+3.3V
/HITMP
Q704
/FSRARI