Understanding Photocopiers

Which component of a photocopy machine is responsible for scanning the document?

• Toner

• Conveyor belt

• Photo sensitive drum

• Halogen lamp

What is the role of the selenium coating on the photo sensitive drum?

• To act as a conductor in light and insulator in dark

• To reflect light

• To charge the toner

• To feed paper into the machine

How does the photo sensitive drum create an electrical shadow of the document?

• By reflecting light from dark areas

• By heating the toner

• By discharging areas exposed to light

• By charging the paper

What happens to the toner image when it is transferred onto the paper?

• It is reflected back onto the drum

• It is permanently fused by heat and pressure

• It is erased

• It is cooled down

Why does the final copy from a photocopier feel warm?

• Due to the halogen lamp

• Because of the electrical charge

• From the heat and pressure of the rollers

• Because of the selenium coating