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Samsung Electronics
CIRCUIT DESCRIPTION
Repair Manual
3-4-2-6. Anchorage unit
The toner transferred on to the paper is at the electronically low state and it can be easily scattered. Considering this fact,
we used heat (180°C) and pressure (4kg) to fix the toner on the paper permanently. Then the image formed will remain on
the paper permanently. Heat roller transfers the heat from the heat lamp inside to the paper. The surface of the heat roller
specially coated with Teflon repels toner melted by the heat from the surface.
The pressure roller on the bottom of the heat roller is made of silicon resin and its surface is also coated with Teflon. The
thermistor of the fixer unit detects the surface temperature of the heat roller and feeds this information back in order to retain
180°C while printing and 135°C, while on standby. The thermostat is used as the secondary safety device and it prevents
overheat by shutting the main power when the heat lamp
is overheated.
3-4-2-7. Exit
After the digital picture process is finished, the printed paper will come out of the set through the exit sensor. The signal
detected will be transferred to the engine and provide the position information. If the actuator and the sensor do not work
normally, the system will display “Paper Jam 2 Error”.
Heat Lamp
Heat Roller
Paper
Toner
Pressure
Roller
Spring
Thermistor
Summary of Contents for SF-530 Series
Page 87: ...Electronics ...
