Chapter 10 Machine Overview
Chapter 10 Machine Overview CONTENTS
10.1 Telephone System.................................................................................................10 - 1
10.1.1 Converting and Sending Voice in the Form of Electrical Signals............................................... 10 - 1
10.1.2 Analog and Digital Signals......................................................................................................... 10 - 3
10.2 Telephone Call Connection Mechanism................................................................10 - 6
10.2.1 Analog Telephone Network........................................................................................................ 10 - 6
10.2.2 Telephone Call Connection Mechanism .................................................................................... 10 - 7
10.4 FAX System (Overview)......................................................................................10 - 11
10.5 Unit Mechanisms.................................................................................................10 - 13
10.6 FAX Standards (ITU-T Recommendations).........................................................10 - 16
10.7 Fault Isolation Procedure for FAX .......................................................................10 - 17
10.7.1 Fault Occurs............................................................................................................................. 10 - 17
10.7.2 Send Fault................................................................................................................................10 - 17
10.7.3 Receive Fault........................................................................................................................... 10 - 18
10.8 Other Problems ...................................................................................................10 - 19
10.9 Functions of SCANNER ASSY............................................................................10 - 20
10.9.1 Document Scanning................................................................................................................. 10 - 20
10.9.2 Document Scanning at Platen (IIT)..........................................................................................10 - 21
10.9.3 Document Scanning at Auto Document Feeder (ADF)............................................................ 10 - 22
10.10 Paper Path.........................................................................................................10 - 23
10.10.1 Paper Path of ADF................................................................................................................. 10 - 23
10.11 Functions of Major Functional Components......................................................10 - 24
10.11.1 Image Input Terminal (IIT) ..................................................................................................... 10 - 24
10.11.2 Auto Document Feeder (ADF) ............................................................................................... 10 - 25
10.11.3 Electrical ................................................................................................................................ 10 - 28
10.11.3.1 Electrical ........................................................................................................................ 10 - 28
10.11.3.2 Data Flow.......................................................................................................................10 - 32
10.12 Control...............................................................................................................10 - 33
10.12.1 Document Scanning Steps .................................................................................................... 10 - 33
10.12.1.1 AOC (Auto Offset Control) ............................................................................................. 10 - 33
10.12.1.2 AGC (Auto Gain Control): White Level Variation Adjustment........................................ 10 - 33
10.12.1.3 Shading Compensation..................................................................................................10 - 33
10.12.2 CCD Image Sensor Overview................................................................................................ 10 - 34
10.12.3 System Configuration............................................................................................................. 10 - 35
10.13 Drive Transmission Route of ADF Motor...........................................................10 - 36
10.13.1 ADF Motor.............................................................................................................................. 10 - 36
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