System Outline - Samsung CLP-510/XBH Service Manual

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5 System Outline

This chapter describes the functions and operating principals of the main components.
5.1 CLP (Color Laser Printing) Process
5.1.1 OPC Drum Unit (Charge Section)
The OPC Unit is the image formation unit and it consists of the OPC drum, waster toner assembly, charge
roller assembly, etc. (see diagram below).
Charge Roller
-1000V ~ -1500V
1) Structure
* OPC drum: The laser light coming from the LSU forms an latent electric image on the surface of
the OPC drum.
* Cleaning Blade: Removes remaining unwanted toner from the OPC drum.
* Waste toner tank: Collects and stores the waste toner.
* Charge roller: The charge roller is charged to a negative high voltage (-1KV~1.5KV) It is in con-
tact with the OPC drum and produces a uniform (-) voltage on its surface of approximately -500~-
800V.
2) Type
* Life span: 50K Images (Color 12.5K)
* Waste toner removal: Transferred to a user replaceable tank
* Waste tank sensors: LED type, detects tank present and tank full
* OPC drum diameter: 120mm
* Power: Main motor (BLDC)
* Charging method: Charge roller
* Eraser method: LED lamp (+5V/2Pin)
* PTL: LED lamp (+5V/2Pin)
Samsung Electronics
OPC Drum
LSU
Charge Roller
System Outline
Cleaning Blade
Waste Toner Tank
Eraser Lamp
Cleaning Roller
Charge Bias
HVPS
Service Manual
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