서비스 매뉴얼차례FACSIMILE BASIC 20001PREFACE3CONTENTS4BASIC OF TELEPHONE91. INTRODUCTION TO THE TELEPHONE101.1 Parts of the Telephone101.2 Making a Call111.3 How do you make a call?121.4 Voice Frequencies Carried by the Telephone122. STRUCTURE OF A TELEPHONE132.1 Transmitter (Microphone)142.2 Receiver (Speaker)152.3 Voice Circuit152.4 Hook Button162.5 Dial172.6 Bell (Speaker)183. TYPES OF TELEPHONES193.1 Dial Telephones193.2 Pushbutton Telephones193.3 Digital Telephones204. CIRCUIT DIAGRAM IN THE TELEPHONE214.1 Dial Telephones214.2 Pushbutton Telephone225. INTRODUCTION TO THE TELEPHONE NETWORK235.1 Parts of a Telephone Network235.2 Basic Structure of a Telephone Network System275.3 Nationwide Telephone Network (In case of Japan)286. TELEPHONE EXCHANGES336.1 Types of Exchanges336.2 The Exchange34GENERAL DESCRIPTION OF A FACSIMILE371. WHAT IS A “FACSIMILE?”381.1 Established Rules of Communication381.2 Control Procedure381.3 Facsimile Groups391.4 Telephone Lines391.5 Types of ITU-T Recommendations401.6 How Images are Transmitted442. STRUCTURE OF A FACSIMILE492.1 Reading Section512.2 Recording Section542.3 MODEM572.4 NCU board (Network Control Unit board)582.5 System Control Section583. THE FUTURE OF FACSIMILES593.1 Color Facsimiles593.2 LAN-networked Facsimiles593.3 Internet Facsimiles60READING SECTION631. INTRODUCTION642. READING METHODS652.1 Sheet Reading Method652.2 Book Reading Method662.3 ADF Type663. CONTACT SENSOR723.1 Structure of Contact Sensor723.2 Features of Contact Sensor724. IMAGE DATA PROCESSOR764.1 Various Image Data Processing76RECORDING SECTION791. INTRODUCTION802. IMAGE DATA PROCESSING SECTION812.1 Image Area Separation Processing, Smoothing Processing and Selector822.2 Reproduction Ratio Processing Section862.3 Ink Saving/Toner Saving893. PAPER FEED SECTION903.1 Pickup Section903.2 Feed/Eject Section953.3 Detection of Recording Paper Jams974. PRINTING SECTION1024.1 LBP (LASER Beam Printer)1024.2 Printing by LASER1024.3 Flow of Printing1044.4 Video Control Section/Printer Engine Control Section1054.5 LASER/Scanner Section1104.6 Printing Process1124.7 Toner Cartridge1244.8 BJ (Bubble Jet) Printer1264.9 Printing by Bubbles1264.10 Printing Section1284.11 Carriage Section1294.12 Purge Unit1344.13 BJ Cartridge136G3 FACSIMILE COMMUNICATIONS1431. INTRODUCTION1442. WHAT IS A “G3 FACSIMILE?”1443. G3 FACSIMILE IMAGE TRANSMISSION1453.1 Structure of Image Signals1453.2 Transmission Time1474. CODING SCHEMES1504.1 Why is Coding Necessary?1504.2 MH Coding Scheme (One-dimensional Coding Scheme)1524.3 MR Coding Scheme (Two-dimensional Coding Scheme)1594.4 MMR Coding Scheme1704.5 JBIG Image Compression Encoding Scheme1715. MODULATION METHOD1875.1 Modulation and Demodulation1875.2 Shift and Modulation Methods1885.3 Modulation Methods up to 9600 bps1895.4 High-speed MODEMs above 14400 bps1975.5 V.17 (V.33) MODEM Technology1975.6 V.34 MODEM Technology2156. TRANSMISSION CONTROL PROCEDURES2316.1 Outline of Transmission Control Procedures2316.2 Signal Types2326.3 Basic Transmission Control Procedure2336.4 Procedures for Performing Individual Page Control (Q signals)2426.5 Training2446.6 Method for Detecting Image Signal Transmission Errors2466.7 Option Signals2486.8 Structure of Binary Signals2496.9 Example of G3 Procedures2646.10 ECM Communications265FACSIMILE SYSTEM2731. INTRODUCTION2742. SCNT BOARD2752.1 System Control Section2752.2 Communications Control Section2762.3 Reading Control Section2762.4 Printer Control Section2763. NCU BOARD2773.1 Off-hook Detection2783.2 Formation of DC Loop2783.3 Detection of Calling Identification (CI)2813.4 Line Signal Monitor2823.5 Dial Control2833.6 2-wire/4-wire Conversion2843.7 Protective Circuits2843.8 Telephone Connection Control2863.9 Relay Operations2894. OPCNT BOARD2904.1 Detection of Button Input2904.2 LED Lighting Control2934.3 Display Indication Control2935. FLOW OF IMAGE SIGNALS2945.1 Transmission2945.2 Reception2956. POWER SUPPLY UNIT2966.1 Switching Regulator2966.2 Configuration of Power Supply Unit on a Facsimile3037. G4CNT BOARD304APPENDIX3071. TRANSMISSION LINES OF TELEPHONE LINES3082. CHARACTERISTICS OF TELEPHONE LINE (ANALOG)3102.1 Telephone Line Band3102.2 Characteristics of Telephone Network Components3112.3 Factors of Telephone Line Deterioration3123. FACSIMILE COMMUNICATION NETWORK SERVICES & MINIFAX (JAPAN ONLY)3163.1 F-NET3183.2 Minifax I (MF-I)3223.3 Minifax II (MF-II)3234. TELEPHONE LINE BAND & SIGNAL SPECTRUM3255. S/N3266. POLARITY INVERSION ON EXCHANGE3277. FACTORS WHICH CAUSE DETERIORATION IN QUALITY OF FACSIMILE TRANSMISSION3287.1 Usual Factors3287.2 Unusual Factors3337.3 Echo3348. RATIO, dB, dBm & dBV3419. BINARY SIGNALS TABLE34510. MAKER CODES TABLE34811. STANDARD DOCUMENT SIZES35012. G3 FACSIMILE TRANSMISSION CONTROL PROCEDURES351GLOSSARY373INDEX377크기: 3.77메가바이트페이지: 381Language: English매뉴얼 열기