Samsung CLP-770ND - Paper Transfer Belt (PTB) Unit Overview; Printer Motor Functions

Product spec and feature
Service Manual
2-29
Samsung Electronics
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2.4.10 PTB(Paper Transfer Belt) Unit
This unit consists of a transfer belt, transfer roller, duplex unit. waste toner tank, etc. The transfer belt
carries the printing medium (paper) through OPC drums of each colors. As the paper and transfer belt pass
between the transfer roller and the OPC drum, the negatively charged toner images formed on OPC drum
are transferred to the printing medium (paper) by positive bias applied to the transfer roller. The toner images
transferred to the medium is melted down ad xed on the medium by fusing system.
- Life Span : 50,000 images (Declared yield value in accordance with ISO/IEC 24712)
2.4.11 Motors
This product have many motors.
These motors drive the PTB unit, fuser unit, feeder unit, exit unit, etc.
1 BLDC Motor For fuser unit
2 BLDC Motor For OPC Drive unit
3 BLDC Motor For DEVE Drive unit
4 Step Motor For feed drive unit