Samsung ML-4551ND - Print Cartridge

Service Manual
Summary of Product
3-10
Samsung Electronics
3.2.6 Print Cartridge
By using the electronic photo process, it creates a visual image. In the print cartridge, the OPC unit and
the toner cartridge unit are in a body. The OPC unit has OPC drum and charging roller, and the toner
cartridge unit has toner, supply roller, developing roller, and blade (Doctor blade)
- Developing Method: Non-contacting method
- Toner : Non magnetic 1 component pulverized type toner
- The life span of toner : 10,000 or 20,000 pages (LSA Pattern/A4 standard)
- Toner remaining amount detecting sensor : Yes
- OPC Cleaning : Cleaning blade type
- Management of disusable toner : Collect the toner by using Cleaning Blade
- OPC Drum protecting Shutter : Yes
- Classifying device for toner cartridge : ID is classified by CRUM.
Cleaning Roller
Cleaning Blade
-650V
200V
-1.30KV
V
PP = 1500V, f = 3.0KHz
1
2
3
4
5
6
7
8
+5.0kV
-50V
+
-
200V
+
-
<Toner Cartridge Layout>