Manuali utente per Canon fax basic 2000

Sommario

• FACSIMILE BASIC 2000

  1
• PREFACE

  3
• CONTENTS

  4
• BASIC OF TELEPHONE

  9
  • 1. INTRODUCTION TO THE TELEPHONE

    10
    • 1.1 Parts of the Telephone

      10
    • 1.2 Making a Call

      11
    • 1.3 How do you make a call?

      12
    • 1.4 Voice Frequencies Carried by the Telephone

      12
  • 2. STRUCTURE OF A TELEPHONE

    13
    • 2.1 Transmitter (Microphone)

      14
    • 2.2 Receiver (Speaker)

      15
    • 2.3 Voice Circuit

      15
    • 2.4 Hook Button

      16
    • 2.5 Dial

      17
    • 2.6 Bell (Speaker)

      18
  • 3. TYPES OF TELEPHONES

    19
    • 3.1 Dial Telephones

      19
    • 3.2 Pushbutton Telephones

      19
    • 3.3 Digital Telephones

      20
  • 4. CIRCUIT DIAGRAM IN THE TELEPHONE

    21
    • 4.1 Dial Telephones

      21
    • 4.2 Pushbutton Telephone

      22
  • 5. INTRODUCTION TO THE TELEPHONE NETWORK

    23
    • 5.1 Parts of a Telephone Network

      23
    • 5.2 Basic Structure of a Telephone Network System

      27
    • 5.3 Nationwide Telephone Network (In case of Japan)

      28
  • 6. TELEPHONE EXCHANGES

    33
    • 6.1 Types of Exchanges

      33
    • 6.2 The Exchange

      34
• GENERAL DESCRIPTION OF A FACSIMILE

  37
  • 1. WHAT IS A “FACSIMILE?”

    38
    • 1.1 Established Rules of Communication

      38
    • 1.2 Control Procedure

      38
    • 1.3 Facsimile Groups

      39
    • 1.4 Telephone Lines

      39
    • 1.5 Types of ITU-T Recommendations

      40
    • 1.6 How Images are Transmitted

      44
  • 2. STRUCTURE OF A FACSIMILE

    49
    • 2.1 Reading Section

      51
    • 2.2 Recording Section

      54
    • 2.3 MODEM

      57
    • 2.4 NCU board (Network Control Unit board)

      58
    • 2.5 System Control Section

      58
  • 3. THE FUTURE OF FACSIMILES

    59
    • 3.1 Color Facsimiles

      59
    • 3.2 LAN-networked Facsimiles

      59
    • 3.3 Internet Facsimiles

      60
• READING SECTION

  63
  • 1. INTRODUCTION

    64
  • 2. READING METHODS

    65
    • 2.1 Sheet Reading Method

      65
    • 2.2 Book Reading Method

      66
    • 2.3 ADF Type

      66
  • 3. CONTACT SENSOR

    72
    • 3.1 Structure of Contact Sensor

      72
    • 3.2 Features of Contact Sensor

      72
  • 4. IMAGE DATA PROCESSOR

    76
    • 4.1 Various Image Data Processing

      76
• RECORDING SECTION

  79
  • 1. INTRODUCTION

    80
  • 2. IMAGE DATA PROCESSING SECTION

    81
    • 2.1 Image Area Separation Processing, Smoothing Processing and Selector

      82
    • 2.2 Reproduction Ratio Processing Section

      86
    • 2.3 Ink Saving/Toner Saving

      89
  • 3. PAPER FEED SECTION

    90
    • 3.1 Pickup Section

      90
    • 3.2 Feed/Eject Section

      95
    • 3.3 Detection of Recording Paper Jams

      97
  • 4. PRINTING SECTION

    102
    • 4.1 LBP (LASER Beam Printer)

      102
    • 4.2 Printing by LASER

      102
    • 4.3 Flow of Printing

      104
    • 4.4 Video Control Section/Printer Engine Control Section

      105
    • 4.5 LASER/Scanner Section

      110
    • 4.6 Printing Process

      112
    • 4.7 Toner Cartridge

      124
    • 4.8 BJ (Bubble Jet) Printer

      126
    • 4.9 Printing by Bubbles

      126
    • 4.10 Printing Section

      128
    • 4.11 Carriage Section

      129
    • 4.12 Purge Unit

      134
    • 4.13 BJ Cartridge

      136
• G3 FACSIMILE COMMUNICATIONS

  143
  • 1. INTRODUCTION

    144
  • 2. WHAT IS A “G3 FACSIMILE?”

    144
  • 3. G3 FACSIMILE IMAGE TRANSMISSION

    145
    • 3.1 Structure of Image Signals

      145
    • 3.2 Transmission Time

      147
  • 4. CODING SCHEMES

    150
    • 4.1 Why is Coding Necessary?

      150
    • 4.2 MH Coding Scheme (One-dimensional Coding Scheme)

      152
    • 4.3 MR Coding Scheme (Two-dimensional Coding Scheme)

      159
    • 4.4 MMR Coding Scheme

      170
    • 4.5 JBIG Image Compression Encoding Scheme

      171
  • 5. MODULATION METHOD

    187
    • 5.1 Modulation and Demodulation

      187
    • 5.2 Shift and Modulation Methods

      188
    • 5.3 Modulation Methods up to 9600 bps

      189
    • 5.4 High-speed MODEMs above 14400 bps

      197
    • 5.5 V.17 (V.33) MODEM Technology

      197
    • 5.6 V.34 MODEM Technology

      215
  • 6. TRANSMISSION CONTROL PROCEDURES

    231
    • 6.1 Outline of Transmission Control Procedures

      231
    • 6.2 Signal Types

      232
    • 6.3 Basic Transmission Control Procedure

      233
    • 6.4 Procedures for Performing Individual Page Control (Q signals)

      242
    • 6.5 Training

      244
    • 6.6 Method for Detecting Image Signal Transmission Errors

      246
    • 6.7 Option Signals

      248
    • 6.8 Structure of Binary Signals

      249
    • 6.9 Example of G3 Procedures

      264
    • 6.10 ECM Communications

      265
• FACSIMILE SYSTEM

  273
  • 1. INTRODUCTION

    274
  • 2. SCNT BOARD

    275
    • 2.1 System Control Section

      275
    • 2.2 Communications Control Section

      276
    • 2.3 Reading Control Section

      276
    • 2.4 Printer Control Section

      276
  • 3. NCU BOARD

    277
    • 3.1 Off-hook Detection

      278
    • 3.2 Formation of DC Loop

      278
    • 3.3 Detection of Calling Identification (CI)

      281
    • 3.4 Line Signal Monitor

      282
    • 3.5 Dial Control

      283
    • 3.6 2-wire/4-wire Conversion

      284
    • 3.7 Protective Circuits

      284
    • 3.8 Telephone Connection Control

      286
    • 3.9 Relay Operations

      289
  • 4. OPCNT BOARD

    290
    • 4.1 Detection of Button Input

      290
    • 4.2 LED Lighting Control

      293
    • 4.3 Display Indication Control

      293
  • 5. FLOW OF IMAGE SIGNALS

    294
    • 5.1 Transmission

      294
    • 5.2 Reception

      295
  • 6. POWER SUPPLY UNIT

    296
    • 6.1 Switching Regulator

      296
    • 6.2 Configuration of Power Supply Unit on a Facsimile

      303
  • 7. G4CNT BOARD

    304
• APPENDIX

  307
  • 1. TRANSMISSION LINES OF TELEPHONE LINES

    308
  • 2. CHARACTERISTICS OF TELEPHONE LINE (ANALOG)

    310
    • 2.1 Telephone Line Band

      310
    • 2.2 Characteristics of Telephone Network Components

      311
    • 2.3 Factors of Telephone Line Deterioration

      312
  • 3. FACSIMILE COMMUNICATION NETWORK SERVICES & MINIFAX (JAPAN ONLY)

    316
    • 3.1 F-NET

      318
    • 3.2 Minifax I (MF-I)

      322
    • 3.3 Minifax II (MF-II)

      323
  • 4. TELEPHONE LINE BAND & SIGNAL SPECTRUM

    325
  • 5. S/N

    326
  • 6. POLARITY INVERSION ON EXCHANGE

    327
  • 7. FACTORS WHICH CAUSE DETERIORATION IN QUALITY OF FACSIMILE TRANSMISSION

    328
    • 7.1 Usual Factors

      328
    • 7.2 Unusual Factors

      333
    • 7.3 Echo

      334
  • 8. RATIO, dB, dBm & dBV

    341
  • 9. BINARY SIGNALS TABLE

    345
  • 10. MAKER CODES TABLE

    348
  • 11. STANDARD DOCUMENT SIZES

    350
  • 12. G3 FACSIMILE TRANSMISSION CONTROL PROCEDURES

    351
• GLOSSARY

  373
• INDEX

  377