6.6. MODEM SECTION
6.6.1. FUNCTION
The unit uses a 1 chip modem (IC505) that serves as an interface between the control section for FAX transmission and reception
and the telephone line. During a transmitting operation, the digital image signals are modulated and sent to the telephone line.
During a receiving operation, the analog image signals which are received via the telephone line are demodulated and converted
into digital image signals. The communication format and procedures for FAX communication are standardized by CCITT. This 1
chip modem (IC505) has hardware which sends and detects all of the necessary signals for FAX communication.
It can be controlled by writing commands from the CPU (IC501: inside ASIC) to the register in the modem (IC505).
This modem (IC505) also sends DTMF signals, generates a call tone (from the speaker), and detects a busy tone and dial tones.
Overview of Facsimile Communication Procedures (CCITT Recommendation):
1. ON CCITT (International Telegraph and Telephone Consultative Committee)
The No. XIV Group of CCITT, one of the four permanent organizations of the International Telecommunications Union (ITU),
investigates and make recommendations on international standards for facsimiles.
2. Definition of Each Group
·
Group I (G1)
Official A-4 size documents without using formats which reduce the band width of a signal are sent over telephone lines.
Determined in 1968.
Transmission for about 6 minutes at a scanning line density of 3.85 lines/mm.
·
Group II (G2)
Using reduction technology in the modulation/demodulation format, an A-4 size document is sent at an official scanning line
density of 3.85 lines/mm for about 3 minutes.
Methods to suppress redundancy are not used.
Determined in 1976.
·
Group III (G3)
Method of suppressing redundancy in the image signal prior to modulation is used. An A-4 size document is sent within
about one minute.
Determined in 1980.
·
Group IV (G4)
Transmission is via the data network. A method is provided for suppressing redundancy in signals prior to transmission, and
error-free reception of transmission is possible.
The scope of these facsimile applications is not limited simply to transmission of written statements. Through symbiotic
linkages with other communication methods, it can be expected to expand to include integrated services.
162
KX-FP320G / KX-FM330G
Содержание KX-FM330GR
Страница 2: ...1 INTRODUCTION 1 1 CONTROL PANEL Change from original page 10 1 12 2 CONTROL PANEL 2 KX FM330GR ...
Страница 8: ...2 3 Digital Speaker Phone Change from original page 84 2 3 3 5 1 Digital Speakerphone 8 KX FM330GR ...
Страница 20: ...20 KX FM330GR ...
Страница 26: ...KX FM330GR 26 ...
Страница 28: ...KX FM330GR 28 ...
Страница 29: ...6 ACCESSORIES AND PACKING MATERIALS 29 KX FM330GR ...
Страница 42: ...42 KX FM330GR HK Q KXFM330GR Printed in Japan ...
Страница 51: ...1 11 CCITT No 1 Test Chart Actual size 9 KX FP320G KX FM330G ...
Страница 52: ...1 12 LOCATION OF CONTROLS 1 12 1 OVERVIEW 1 12 2 CONTROL PANEL 10 KX FP320G KX FM330G ...
Страница 59: ...1 14 5 DOCUMENTS THE UNIT CAN FEED 17 KX FP320G KX FM330G ...
Страница 70: ...2 2 1 PAPER JAM 28 KX FP320G KX FM330G ...
Страница 72: ...2 3 3 TROUBLESHOOTING ITEMS TABLE 30 KX FP320G KX FM330G ...
Страница 73: ...2 3 3 1 Simple Check List 31 KX FP320G KX FM330G ...
Страница 74: ...2 3 3 2 ADF Auto document feed section 1 No document feed 32 KX FP320G KX FM330G ...
Страница 75: ...2 Document JAM 33 KX FP320G KX FM330G ...
Страница 77: ...4 Skew We recommend making a copy of the Fig A document in 3 Multiple feed and using it 35 KX FP320G KX FM330G ...
Страница 79: ...6 Paper JAM 7 Multiple feed and skew 37 KX FP320G KX FM330G ...
Страница 82: ...Fig C When replacing the CCD board perform the CCD adjustment 3 3 CCD ADJUSTMENTS 40 KX FP320G KX FM330G ...
Страница 87: ...2 3 3 3 1 Defective facsimile section 1 Transmit problem 45 KX FP320G KX FM330G ...
Страница 91: ...4 The unit can copy but cannot transmit receive 49 KX FP320G KX FM330G ...
Страница 97: ...55 KX FP320G KX FM330G ...
Страница 98: ...56 KX FP320G KX FM330G ...
Страница 99: ...57 KX FP320G KX FM330G ...
Страница 100: ...58 KX FP320G KX FM330G ...
Страница 101: ...59 KX FP320G KX FM330G ...
Страница 102: ...60 KX FP320G KX FM330G ...
Страница 103: ...61 KX FP320G KX FM330G ...
Страница 104: ...62 KX FP320G KX FM330G ...
Страница 106: ...1 Entering the remote programming mode and changing service codes 64 KX FP320G KX FM330G ...
Страница 112: ...Normal Wave Patterns 70 KX FP320G KX FM330G ...
Страница 114: ...72 KX FP320G KX FM330G ...
Страница 116: ...74 KX FP320G KX FM330G ...
Страница 117: ...NG Example 75 KX FP320G KX FM330G ...
Страница 118: ...2 3 3 4 2 Check the Status of the Digital Board 76 KX FP320G KX FM330G ...
Страница 120: ...2 3 3 4 3 RS 232C serial communication KX FM330 Only 78 KX FP320G KX FM330G ...
Страница 121: ...79 KX FP320G KX FM330G ...
Страница 126: ...Refer to 2 3 3 5 Analog Board Section 84 KX FP320G KX FM330G ...
Страница 129: ...87 KX FP320G KX FM330G ...
Страница 130: ...2 3 3 7 Operation Panel Section 1 No key operation 2 No LCD indication 88 KX FP320G KX FM330G ...
Страница 135: ...2 3 3 10 Thermal Head Section Refer to 6 4 2 THERMAL HEAD 93 KX FP320G KX FM330G ...
Страница 136: ...2 3 3 11 PANA LINK 94 KX FP320G KX FM330G ...
Страница 137: ...95 KX FP320G KX FM330G ...
Страница 138: ...Note Bold words can be translated into German 96 KX FP320G KX FM330G ...
Страница 139: ...Note Bold words can be translated into German 97 KX FP320G KX FM330G ...
Страница 140: ...Note Bold words can be translated into German 98 KX FP320G KX FM330G ...
Страница 143: ...101 KX FP320G KX FM330G ...
Страница 152: ...110 KX FP320G KX FM330G ...
Страница 155: ...2 5 3 PRINT TEST PATTERN 1 Platen feed Reference pattern 113 KX FP320G KX FM330G ...
Страница 156: ...2 Left margin Upper margin Reference pattern 114 KX FP320G KX FM330G ...
Страница 157: ...3 Head dot out Reference pattern 115 KX FP320G KX FM330G ...
Страница 158: ...4 Ribbon pull out Reference pattern 116 KX FP320G KX FM330G ...
Страница 164: ...122 KX FP320G KX FM330G ...
Страница 175: ... Wiring Ferrite core UL tape Note After Ferrite core has been fitted wind UL tape around it 133 KX FP320G KX FM330G ...
Страница 180: ...6 2 1 General Block Diagram 138 KX FP320G KX FM330G ...
Страница 182: ...6 3 2 MEMORY MAP 140 KX FP320G KX FM330G ...
Страница 195: ...153 KX FP320G KX FM330G ...
Страница 209: ...b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format 167 KX FP320G KX FM330G ...
Страница 213: ...6 8 1 ANALOG UNIT BLOCK DIAGRAM 171 KX FP320G KX FM330G ...
Страница 220: ...6 13 2 EXPLANATION OF ANALOG GATE ARRAY IC103 on the Analog Board 178 KX FP320G KX FM330G ...
Страница 226: ...184 KX FP320G KX FM330G ...
Страница 239: ...10 TERMINAL GUIDE OF THE IC S TRANSISTORS AND DIODES 197 KX FP320G KX FM330G ...
Страница 240: ...11 FIXTURES AND TOOLS 198 KX FP320G KX FM330G ...
Страница 241: ...12 CABINET MECHANICAL AND ELECTRICAL PARTS LOCATION 12 1 PAPER CASSETTE SECTION 199 KX FP320G KX FM330G ...
Страница 242: ...12 2 OPERATION PANEL SECTION 200 KX FP320G KX FM330G ...
Страница 243: ...12 3 UPPER CABINET P C B SECTION 201 KX FP320G KX FM330G ...
Страница 244: ...12 4 MECHANICAL SECTION 202 KX FP320G KX FM330G ...
Страница 245: ...12 5 CCD UNIT SECTION 203 KX FP320G KX FM330G ...
Страница 246: ...12 6 ACTUAL SIZE OF SCREWS AND WASHER 204 KX FP320G KX FM330G ...
Страница 247: ...13 ACCESSORIES AND PACKING MATERIALS 205 KX FP320G KX FM330G ...
Страница 263: ...14 9 EXPLANATION OF CD ROM SERVICE NUMBER 221 KX FP320G KX FM330G ...
Страница 264: ...222 KX FP320G KX FM330G HK Q KXFP320G KXFM330G Printed in Japan ...