6.4. FACSIMILE SECTION
6.4.1. IMAGE DATA FLOW DURING FACSIMILE OPERATION
COPY (Fine, Super-Fine, Half Tone)
1. Line information is read by CIS, via route (1), and is input to IC1.
2. In IC1, the data is adjusted to a suitable level for A/D conversion in the Analog Signal Processing Section, and via route (2)
it is input to A/D conversion (8 bit). After finishing A/D conversion, the data is input to the Image Processing Section via route
(3). Then via routes (4) and (5), it is stored in RAM as shading data.
3. The draft´s information that is read by CIS is input to IC1 via route (1). After it is adjusted to a suitable level for A/D
conversion via route (2), the draft´s information is converted to A/D (8 bit), and it is input to the Image Processing Section.
The other side, the shading data which flows from RAM via routes (6) and (7), is input to the Image Processing Section.
After finishing the draft´s information image processing, white is regarded as "0" and black is regarded as "1".
Then via routes (4) and (5), they are stored in RAM.
4. The white/black data stored as above is input to the P/S converter via routes (6) and (8).
The white/black data converted to serial data in the P/S converter is input to the Thermal Head via route (9) and is printed
out on recording paper.
Note:
Standard: Reads 3.58 times/mm
Fine: Reads 7.7 times/mm
Super-Fine: Reads 15.4 times/mm
Transmission
1. Same processing as COPY items 1) - 3).
2. The data stored in RAM of IC1 is output from IC1 via routes (6) and (10), and is stored in the system bus.
Via route (11), it is stored in the communication buffer inside RAM (IC4).
3. While fetching data stored in the communication buffer synchronous with the modem, the CPU inputs data to the modem
along route (12).
It is converted to serial analog data and forwarded over telephone lines via the NCU Section.
Reception
1. The serial analog image data is received over telephone lines and input to the modem IC (IC5) via the NCU section, where
it is demodulated to parallel digital data. The balance data is sent to the modem. Then the CPU stores the data in the
communication buffer of RAM (IC4) along route (11).
2. The data stored in RAM (IC4) is decoded by the CPU via route (12), and is stored in RAM by routes (13) and (5).
3. Same processing as COPY item 4).
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KX-FT25LA
Содержание KX-FT25LA
Страница 8: ...1 10 CCITT No 1 TEST CHART 8 KX FT25LA ...
Страница 9: ...1 11 LOCATION OF CONTROLS 1 11 1 OVERVIEW 9 KX FT25LA ...
Страница 10: ...1 11 2 CONTROL PANEL 10 KX FT25LA ...
Страница 13: ...1 13 3 SETTING YOUR LOGO 13 KX FT25LA ...
Страница 16: ...1 14 2 1 MAINTENANCE LIST 1 14 2 2 MAINTENANCE CYCLE 16 KX FT25LA ...
Страница 21: ...2 2 1 Document Jam 21 KX FT25LA ...
Страница 23: ...2 3 3 Simple Check List 23 KX FT25LA ...
Страница 24: ...2 3 4 TROUBLESHOOTING ITEMS TABLE 24 KX FT25LA ...
Страница 25: ...2 3 4 1 ADF Auto Document Feed Section 1 No document feed 25 KX FT25LA ...
Страница 26: ...2 Document JAM 26 KX FT25LA ...
Страница 28: ...4 Skew 28 KX FT25LA ...
Страница 29: ...5 Image is distorted When printing 29 KX FT25LA ...
Страница 30: ...6 Black or white vertical lines appear 7 Skewed receiving image 30 KX FT25LA ...
Страница 32: ...32 KX FT25LA ...
Страница 34: ...2 3 4 2 1 Defective facsimile section 1 Transmit problem 34 KX FT25LA ...
Страница 35: ...2 Sometimes there is a transmit problem 35 KX FT25LA ...
Страница 37: ...4 The unit can copy but cannot transmit receive 37 KX FT25LA ...
Страница 41: ...7 How to output the Journal Report 41 KX FT25LA ...
Страница 43: ...Countermeasure 43 KX FT25LA ...
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Страница 48: ...48 KX FT25LA ...
Страница 49: ...49 KX FT25LA ...
Страница 50: ...50 KX FT25LA ...
Страница 52: ...1 Entering the remote programming mode and changing service codes 52 KX FT25LA ...
Страница 56: ...2 3 4 3 1 Digital Block Diagram 56 KX FT25LA ...
Страница 58: ...Normal Wave Patterns 58 KX FT25LA ...
Страница 60: ...60 KX FT25LA ...
Страница 62: ...62 KX FT25LA ...
Страница 63: ...NG Example 63 KX FT25LA ...
Страница 66: ...Note Inside the digital board Inside the operation board 66 KX FT25LA ...
Страница 67: ...2 3 4 4 2 Defective ITS Integrated Telephone System Section 67 KX FT25LA ...
Страница 69: ...Refer to 2 3 4 4 Analog Board Section 69 KX FT25LA ...
Страница 71: ...2 Troubleshooting Flow Chart 71 KX FT25LA ...
Страница 72: ...72 KX FT25LA ...
Страница 74: ...2 3 4 6 Operation Board Section 1 No key operation 2 No LCD indication 74 KX FT25LA ...
Страница 76: ...2 3 4 8 Read Section Refer to 6 4 4 SCANNING BLOCK 76 KX FT25LA ...
Страница 77: ...77 KX FT25LA ...
Страница 78: ...2 3 4 9 Thermal Head Section Refer to 6 4 3 THERMAL HEAD 78 KX FT25LA ...
Страница 86: ...2 5 TEST FUNCTIONS 86 KX FT25LA ...
Страница 89: ...4 DISASSEMBLY INSTRUCTIONS 89 KX FT25LA ...
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Страница 101: ...5 3 FLAT PACKAGE IC INSTALLATION PROCEDURE 5 4 BRIDGE MODIFICATION PROCEDURE 101 KX FT25LA ...
Страница 102: ...6 CIRCUIT OPERATIONS 6 1 CONNECTION DIAGRAM 102 KX FT25LA ...
Страница 104: ...6 2 1 General Block Diagram 104 KX FT25LA ...
Страница 105: ...6 3 CONTROL SECTION 6 3 1 BLOCK DIAGRAM 105 KX FT25LA ...
Страница 114: ...6 4 2 Block Diagram 114 KX FT25LA ...
Страница 116: ...116 KX FT25LA ...
Страница 121: ...6 4 6 3 2 Scanning 6 4 6 3 3 Printing Note See 6 5 SENSERS AND SWITCHES 121 KX FT25LA ...
Страница 122: ...6 4 6 3 4 Copying 122 KX FT25LA ...
Страница 131: ...b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format 131 KX FT25LA ...
Страница 133: ...6 7 Analog Unit Block Diagram 133 KX FT25LA ...
Страница 137: ...6 10 2 Circuit Diagram 137 KX FT25LA ...
Страница 140: ...6 12 POWER SUPPLY BOARD SECTION 140 KX FT25LA ...
Страница 153: ...10 TERMINAL GUIDE OF THE IC S TRANSISTORS AND DIODES 153 KX FT25LA ...
Страница 154: ...11 FIXTURES AND TOOLS 154 KX FT25LA ...
Страница 155: ...12 CABINET MECHANICAL AND ELECTRICAL PARTS LOCATION 12 1 OPERATION PANEL SECTION 155 KX FT25LA ...
Страница 156: ...12 2 UPPER CABINET SECTION 156 KX FT25LA ...
Страница 157: ...12 3 LOWER CABINET P C B SECTION 157 KX FT25LA ...
Страница 159: ...12 5 ACTUAL SIZE OF SCREWS AND WASHER 159 KX FT25LA ...
Страница 160: ...13 ACCESSORIES AND PACKING MATERIALS 160 KX FT25LA ...