6.4.3.
THERMAL HEAD
1. Function
This unit utilizes the state of the art thermal printer technology.
The ink film is chemically processed. The ink film is comprised of two parts: an ink layer and a base film. When the thermalhead
contacts this ink film, it emits heat momentarily, and the ink layer is melted and transferred to the paper. If this continues, letters
and/or diagrams appear, and the original document is reproduced.
2. Circuit Operation
Refer to the block diagram and the timing chart on the following page.
There are 27 driver ICs aligned horizontally on the thermal head and each one of these ICs can drive 64 heat-emitting registers.
This means that one line is at a density of 64×27=1728 dots=(8 dots/mm).
White/Black (white=0, black=1) data in one line increment is synchronized at IC501 pin 150 (THCLK), and sent from IC501 pin
149 (THDAT) to the shift register of the ICs. The shift registers of the 27 ICs are connected in series, and upon the shift of the
1728 dot increment, the shift register becomes filled with data, and a latch pulse is emitted to each IC from IC501 pin 151
(THLAT).
With this latch pulse, all the contents of the shift registers are latched to the latch registers. Thereafter, through the addition of
strobes from the IC501 pins (142, 143, 146), only the dot location of black (=1) among latched data activates the driver, and the
current passes to heat the emitting body to cause heat emission.
Here, the three line strobes, STB1 to STB3, impress at intervals of 9.216 msec, as required for one-line printout.
The sequence is shown on the next page. [Moreover, for the strobe width, the thermistor value inside the thermal head is
detected according to IC501 pin 2. Depending on that value, the strobe width is recorded in ROM (IC502). Accordingly, the
strobe width is determined.]
When the thermal head is not used, the IC501 (141, THON) becomes low , Q501 turns OFF, IC508 turns OFF, and the +24V
power supply for the thermal head driver is not impressed to protect the IC.
152
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 ...
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Страница 100: ...58 KX FP320G KX FM330G ...
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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 ...