Samsung SCX4521F - B/W Laser - All-in-One Service Manual page 92

8. Deverope Process
▶ Developing Method : Non magnetic 1 element contacting method
▶ Toner : Non magnetic 1 element shatter type toner
▶ Toner Qty : 35 gf / 60gf (1k / 3k)
▶ The life span of toner
▶ Toner Residual Sensor : None
▶ OPC Cleaning : Use the conventional cleaning blade
▶ Handling of wasted toner : Discard by collecting waste-toner at waste-toner bin.
▶ OPC Drum Protecting Shutter : None
▶ Classifying device for toner cartridge: ID is classified by interruption of the frame
channel.
▶ Development Roller type : conductive elastic roller
▶ Doctor BLADE Type : Regulating toner layer by pressure
▶ Charge Roller Type : Conductive Roller Contact-Charge
9. Sanner Part
600dpi Color CIS Module for Flat bed, SCX-4517F uses the CIS scanning method
1) CIS SPEC
▶ Scanning size : 216 mm ( width for letter-size)
▶ Light source : LED
▶ Scanning sensor: CIS 600/300 dpi
▶ Scanning mode : Color SCAN / Mono SCAN
▶ MTF
▶ CIS interface : Analog output
▶ Power supply
▶ Clock Frequency: 5.5MHz max.
▶ Number of output : 1
▶ LED Current
▶ Clamp Level
▶ Connection
2) Scan Resolution
(a) Translation
▶ Normal : Vertial: 3.85 Line/mm, Horizontal: 8 Pels/mm :203 x 98dpi
▶ Fine
: Vertial: 7.7 Line/mm, Horizontal: 8 Pels/mm :203 x 196dpi
▶ Super Fine : Vertial: 11.8 Line/mm, Horizontal: 11.8 Pels/mm ;300 x 300dpi
1k/3k sheets (ISO 5% Coverage )
: 30% (300 dpi Chart)
: 3.3V
: Green/Blue : 50mA,
: 1.4V
: 12 pin FFC connector (pitch 1.0mm)
Red : 60mA