Specifications

5-5
Samsung Electronics
System Outline
Service Manual
5.1.4 Image Transfer Section
The toner image formed on the OPC drum is transferred to the ITB (Image Transfer Belt), this is called the
primary image transfer. When the final image has been built on the ITB it is transferred onto paper, this is
called the secondary image transfer.
1) Structure
DUPLEX
OPC DRUM
1
2
3
5
4
Paper Path
NO. Name Description
1. Image Transfer Belt Used to build up the 4 color image from the OPC drum.
Colors are transferred in the order Y, M, C, K
2. Image Transfer Belt cleaner After the final image is transferred onto paper any waste
toner is removed from the transfer belt using this cleaning
blade
3. PTL (Pre-Transfer Lamp) Reduce the electric potential of OPC Drum surface before
primary image transfer the image on the OPC Drum.
4. Image Transfer Roller (T2 Roller) This transfers the final toner image on the image transfer belt
to paper.
5. ITB Home Sensor This sensor is used to ensure that each of the 4 color
images starts at exactly the same point on the ITB. It works
by detecting a fixed point on the belt.
ITB Home Sensor