HP LaserJet Enterprise M607n - Page 43

Figure 1-7 Fuser control
H1, H2
/ZEROX
TP
Fuser film ass’y
Fuser
Pressure roller
RLD
FSAFE
CURCK
Low-voltage suppry supply
Fuser heater
safety circuit
DC controller
Fuser heater
control circuit
Relay control
circuit
Current
detection
circuit
TH1
RL2501
RL2502
AC input
Fuser control
circuit
Zero crossing
detection
circuit
CURRMS
HEAT1
HEAT2
FSAFE3
TH3
TH2
FU7002
FSRNEW
SUBTH1
SUBTH2
MAINTH
+3.3VF0
+3.3VC2
+24VF
+24VC1
The printer has the following fuser-control functions:
ENWW Engine-control system 17