Heater Control Circuit; Configuration - Toshiba e-STUDIO281c Service Manual

16.5 Heater Control Circuit

16.5.1

Configuration

Engine CPU
+5VSW
Temperature
control circuit
250°C upper limit
circuit
e-STUDIO281c/351c/451c
FUSER UNIT / PAPER EXIT SECTION
Front edge
thermistor
+5VSW
Power supply for
Photocoupler
Electric power setting
Error signal
IH1 ON signal
IH2 ON signal
LGC board
Fig. 16-2
16 - 6
Sub Main
thermistor thermistor
Coil Fuser roller
Thermostat
Coil
N
output
AC
input
IH power source/
drive circuit
Control circuit
including CPU
Photocoupler
AC line
DC line
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Power code
FIL
board
Breaker
L
Fuse
IH board