25
KX-FLB802CX/KX-FLB812CX/KX-FLB802CXS/KX-FLB812CXS
6.4.
MODEM SECTION
6.4.1.
FUNCTION
The unit uses MODEM (IC600) 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 con-
verted into digital image signals. The communication format and procedures for FAX communication are standardized by ITU-T.
MODEM has hardware which sends and detects all of the necessary signals for FAX communication.
It can be controlled by writing commands from the SOC (IC600).
This MODEM also sends DTMF signals, generates a call tone (from the speaker), and detects a busy tone and dial tones.
Overview of Facsimile Communication Procedures (ITU-T Recommendation):
1.
ON CCITT (International Telegraph and Telephone Consultative Committee)
The No. XIV Group of ITU-T, 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 link-
ages with other communication methods, it can be expected to expand to include integrated services.
3.
Facsimile Call Time Series
As shown in the following diagram, the facsimile call time series is divided into five phases.
Phase A
: Call setting
Call setting can be manual/automatic.
Phase B
: Pre-message procedure
Phase B is a pre-processing procedure and sequence for confirming the status of the terminal, transmission route, etc., and
for terminal control. It implements terminal preparation status, determines and displays terminal constants, confirms synchro-
nization status, etc. and prepares for transmission of facsimile messages.
Phase C
: Message transmission
Phase C is the procedure for the transmitting facsimile messages.
Phase D
: Post message procedure
Phase D is the procedure for confirming that the message is completed and received. For continuous transmission, phase B
or phase C is repeated for transmission.
Phase E
: Call retrieval
Phase E is the procedure for call retrieval, that is for circuit disconnection.
Summary of Contents for KX-FLB802CX
Page 37: ...37 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 6 8 1 2 ENGINE MOTOR ...
Page 41: ...41 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 6 8 3 2 FB Flatbed MOTOR DRIVE CIRCUIT ...
Page 47: ...47 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 6 12 LSU Laser Scanning Unit SECTION ...
Page 48: ...48 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS ...
Page 57: ...57 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 6 13 12 2 Drum Detection ...
Page 63: ...63 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS ...
Page 125: ...125 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS ...
Page 136: ...136 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 12 3 8 3 SKEW ...
Page 138: ...138 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 12 3 8 5 THE RECORDING PAPER JAM ...
Page 141: ...141 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS CROSS REFERENCE MOTOR SECTION P 172 ...
Page 142: ...142 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 12 3 9 2 SKEW ADF ...
Page 153: ...153 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 12 3 11 3 PRINTOUT EXAMPLE ...
Page 154: ...154 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS ...
Page 156: ...156 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS ...
Page 157: ...157 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS CROSS REFERENCE TEST FUNCTIONS P 92 ...
Page 158: ...158 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS CROSS REFERENCE TEST FUNCTIONS P 92 ...
Page 159: ...159 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS CROSS REFERENCE TEST FUNCTIONS P 92 ...
Page 160: ...160 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS CROSS REFERENCE TEST FUNCTIONS P 92 ...
Page 161: ...161 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS ...
Page 162: ...162 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS ...
Page 163: ...163 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS CROSS REFERENCE TEST FUNCTIONS P 92 ...
Page 173: ...173 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 12 3 13 6 2 ADF MOTOR ...
Page 175: ...175 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 12 3 14 CIS CONTROL SECTION ...
Page 176: ...176 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS CROSS REFERENCE TEST FUNCTIONS P 92 ...
Page 178: ...178 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS ...
Page 179: ...179 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 12 3 16 HIGH VOLTAGE SECTION 1 Main ...
Page 180: ...180 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 2 CHG GRID ...
Page 181: ...181 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 3 TRA ...
Page 182: ...182 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 3 DEV DC ...
Page 183: ...183 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 4 DEV AC ...
Page 184: ...184 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS TRA ...
Page 186: ...186 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 2 Confirmation of the digital unit ...
Page 188: ...188 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS Waveform of normal operation ...
Page 190: ...190 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 12 3 18 2 TROUBLESHOOTING FLOW CHART ...
Page 193: ...193 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 3 Close the ADF cover ...
Page 199: ...199 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 13 Service Fixture Tools ...
Page 201: ...201 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 1 LOWER CABINET SECTION ...
Page 202: ...202 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 2 PRINTER COVER SECTION ...
Page 203: ...203 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 3 SORTER SECTION ...
Page 206: ...206 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 6 REMOVE THE BOTTOM PLATE ...
Page 208: ...208 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 8 REMOVE THE ALALOG BOARD ...
Page 209: ...209 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 9 REMOVE THE DIGITAL BOARD ...
Page 210: ...210 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 10 REMOVE THE MIRROR ...
Page 212: ...212 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 12 REMOVE THE LASER UNIT ...
Page 213: ...213 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 13 REMOVE THE PICK UP ROLLER ...
Page 215: ...215 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 15 REMOVE THE FUSER UNIT PARTS ...
Page 218: ...218 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 18 REMOVE THE SCANNER GLASS COVER ...
Page 219: ...219 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 19 REMOVE THE SCANNER SECTION ...
Page 220: ...220 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 20 REMOVE THE MULTI ROLLER ...
Page 221: ...221 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 21 REMOVE THE TRANSFER ROLLER UNIT ...
Page 223: ...223 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 23 REMOVE THE MAIN GEAR UNIT ...
Page 224: ...224 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 24 REMOVE THE ADF TOP COVER ...
Page 225: ...225 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS ...
Page 226: ...226 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 25 REMOVE THE ADF UNIT ...
Page 227: ...227 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 26 REMOVE THE ADF PARTS ...
Page 228: ...228 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 27 REMOVE THE SORTER UNIT PARTS ...
Page 229: ...229 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS ...
Page 234: ...234 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 28 9 FAN LEFT MOTOR SECTION ...
Page 235: ...235 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 14 29 HOW TO INSTALL FERRITE CORE ...
Page 251: ...251 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 15 4 6 LOW VOLTAGE POWER SUPPLY BOARD ...
Page 254: ...254 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 15 6 1 NG EXAMPLE ...
Page 256: ...256 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 15 7 2 ITU T No 2 TEST CHART ...
Page 286: ...286 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 2 RINTER COVER SECTION 1 ...
Page 287: ...287 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 3 ADF SECTION ...
Page 288: ...288 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 4 PRINT COVER SECTION 2 ...
Page 289: ...289 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 5 PRINTER COVER SECTION 3 ...
Page 290: ...290 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 6 MANUAL TRAY SECTION ...
Page 292: ...292 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 8 UPPER CABINET SECTION ...
Page 293: ...293 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 9 FUSER SECTION ...
Page 294: ...294 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 10 MOTOR SECTION ...
Page 295: ...295 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 11 GEAR SECTION ...
Page 296: ...296 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 12 LOWER CABINET SECTION 1 ...
Page 297: ...297 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 13 LOWER CABINET SECTION 2 ...
Page 298: ...298 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 14 LOWER CABINET SECTION 3 ...
Page 299: ...299 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 15 MAIN CABINET ...
Page 300: ...300 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 16 LOWERSIDE CABINET ...
Page 301: ...301 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS 19 1 17 CASSETTE DOCUMENT TRAY ...
Page 323: ...323 KX FLB802CX KX FLB812CX KX FLB802CXS KX FLB812CXS YF Q KXFLB802 KXFLB812 ...