Service Manual
Product specification and feature
2-24
Samsung Electronics
4) FUSER AC POWER CONTROL
Fuser(HEAT LAMP) gets heat from AC power. The 'ON/OFF control' is operated when the gate of the Triac is turned
on/off by Phototriac (insulting part).
In other words, the AC Controller is passive circuit, so it turns the heater on/off with taking signal from engine Controller.
When the 'HEATER ON' signal is turned on at engine, the LED of Photo Triac takes the voltage and flashes.
From the flashing light, the Triac part (light receiving part) takes the voltage, and the voltage is supplied to the gate of
Triac and flows into the Triac. As a result, the AC current flows in the heat lamp, and heat is occurred. On the other
hand, when the signal is off, the photo triac is off, the voltage is cut off at the gate of Triac, the Triac becomes off, and
then the heat lamp is turned off.
- Triac feature :16A, 600V SWITCHING
- Phototriac Coupler
Summary of Contents for SCX-4500 Series
Page 56: ...Adjustment and Troubleshooting Service Manual 4 3 Samsung Electronics OPE Design ...
Page 60: ...Adjustment and Troubleshooting Service Manual 4 7 Samsung Electronics LED Display Interaction ...
Page 61: ...Service Manual Adjustment and Troubleshooting 4 8 Samsung Electronics LED Display Interaction ...
Page 62: ...Adjustment and Troubleshooting Service Manual 4 9 Samsung Electronics LED Display Interaction ...
Page 115: ...Samsung Electronics Service Manual Exploded Views Parts List 5 6 5 3 OPE Unit 0 1 2 3 4 5 ...