Chapter 2
2-17
2.3.2.4 Printhead
2.3.2.4.1 Structure of Printhead
0013-4821
A printhead incorporates six nozzle arrays. Each nozzle can be controlled individually so that a six-color discharge action can be performed by a single printhead.
a) Nozzle arrays
A total of 2560 nozzles are arranged in a two-column staggered pattern.
In each column, 1280 nozzles are arranged in a staggered pattern at intervals of 600 dpi, forming a 2560-nozzle arranged at intervals of 1200 dpi.
F-2-14
b) Nozzle structure
Ink supplied from the ink tank is filtered by a mesh ink filter, and the supplied to the nozzles.
Ink is supplied from the shared ink chamber to the nozzles. When the head driving current is applied to the nozzle heater, ink boils and form bubbles so that ink
droplets are discharged from the nozzles.
F-2-15
0
2
1
3
2559
2557
2558
2556
0
2
1
3
2559
2557
2558
2556
0
2
1
3
2559
2557
2558
2556
0
2
1
3
2559
2557
2558
2556
0
2
1
3
2559
2557
2558
2556
0
2
1
3
2559
2557
2558
2556
5/600inch
1/1200inch
82/600inch
Resin
Sillicon plate
Heater
Shared ink chamber
Heater
Содержание image Prograf iPF785 Series
Страница 1: ...Mar 27 2014 Service Manual iPF780 760 750 series iPF785 ...
Страница 9: ...Chapter 1 PRODUCT DESCRIPTION ...
Страница 57: ...Chapter 2 TECHNICAL REFERENCE ...
Страница 117: ...Chapter 3 INSTALLATION ...
Страница 125: ...Chapter 4 DISASSEMBLY REASSEMBLY ...
Страница 133: ...Chapter 4 4 7 3 Remove one screw 1 release two hooks 2 and then remove the output guide middle left 3 F 4 11 1 3 2 2 ...
Страница 175: ...Chapter 4 4 49 2 Shaft Cleaner 1 F 4 97 1 1 ...
Страница 176: ...Chapter 4 4 50 3 Upper Cover Hinge Catch 1 Roll Cover Slide Guide 2 F 4 98 2 1 ...
Страница 179: ...Chapter 5 MAINTENANCE ...
Страница 186: ...Chapter 6 TROUBLESHOOTING ...
Страница 212: ...Chapter 7 SERVICE MODE ...
Страница 267: ...Mar 19 2014 PARTS CATALOG iPF786 785 781 780 765 760 755 750 ...
Страница 275: ...STAND UNIT ST 33 STAND UNIT ST 34 100V Q51 1767 000 230 KOR Q51 1768 000 Q51 2560 000 Q51 2800 000 ...
Страница 299: ...2 23 FIGURE 09 CUTTER UNIT J12 J7 J11 J31 J34 J33 A A 10 8 1 502 7 5 13 13 9 11 8 501 6 12 2 3 4 14 14 14 15 503 ...
Страница 301: ...2 25 FIGURE 10 PLATEN GUIDE UNIT 1 3 6 2 8 4 5 10 10 10 9 9 11 ...
Страница 326: ......