Dell 3115CN - Page 727

6 – 14
Chapter 6 Principle of Operation (Fax)
Version 1 2006.11.21
Gnb06028KA
CCD
111111
100001
101111
FAX System (Detail)
Scanner
Scanning
Lamp
Original
Original
Black becomes 0,
white 1 creating
...
Digital dataImage
Control circuit
Digital signal
Modem
DA
conversion
(modulation)
A/D conversion
unit
A/D conversion
unit
NCU
NCU
Analog signal
Sending FAX
Telephone line
Receiving FAX
Control circuit
Modem
AD
conversion
(demodulation)
Printer
Digital signal
Printing
Print