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3.2.3 Bubble jet head-unit structure
a) Bubble jet nozzles
The ink in the ink sponge is filtered through a meshed ink filter, and is fed to the
bubble-jet nozzles through the ink path in the holder. When the head-drive-current
flows to the heater board of each nozzle, ink is heated up, and bubbles are produced
and subsequently form into one large bubble. The head drive current is cut off
before a drop of ink is ejected from the nozzle, but bubbling continues due to the
heat remaining in the heater and the drop of ink is ejected from the nozzle.
After ejecting the ink drop, the nozzle is refilled with ink.
The heaters and their electrical elements within the bubble jet head are
formed on a silicon plate by means of semiconductor technology.
A photosensitive resin layer (nozzle wall) and plastic cover are bonded to
the silicon plate, and nozzles are made in the photosensitive resin layer by
laster.
4-23
BJC-50
Part 4: Technical Reference
Bubble Contraction,
Ink Bubble Formation
4
Ink Drop Jetting
5
End of Heater Power
3
While Heater Power is on
2
Start of Heater Power
1
Plastic Cover
Signal Circuit
Print Board
Extra Fine Wire
Connecting Section
Protection Bond of Wire
Connecting Section
Silicon Plate
Aluminum Plate
Heater Plate
Bubble Jet Nozzle
Common Ink Chamber
Face Plate (Part of Plastic Cover)
Joint Pipe
Ink Filter
Ink Path from Ink Cartrige
Figure 4-16 Bubble Jet Head
Содержание BJC-55 Series
Страница 24: ...0498 AB 2 00 0...
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Страница 74: ...2 4 Character Code Tables Code page 437 Code page 850 Part 2 Product Specifications BJC 50 2 22...
Страница 75: ...Code page 860 Code page 863 2 23 BJC 50 Part 2 Product Specifications...
Страница 76: ...Code page 865 Code page 857 Part 2 Product Specifications BJC 50 2 24...
Страница 77: ...Code page 855 Code page 852 2 25 BJC 50 Part 2 Product Specifications...
Страница 78: ...Code page 864 Code page 869 Part 2 Product Specifications BJC 50 2 26...
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Страница 98: ...3 4 1 Demonstration print Part 3 Operating Instructions BJC 50 3 18 Figure 3 13 Demonstration Print Sample...
Страница 100: ...3 4 3 Ripple pattern print Part 3 Operating Instructions BJC 50 3 20 Figure 3 15 Ripple Pattern Print Sample...
Страница 105: ...3 6 4 EEPROM settings list print 3 25 BJC 50 Part 3 Operating Instructions Figure 3 20 EEPROM Settings List Print Sample...
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Страница 166: ...4 ADJUSTMENT No parts need to be adjusted Part 5 Maintenance BJC 50 5 4...
Страница 200: ...7 CIRCUIT DIAGRAMS 7 1 Parts Layout 7 1 1 Control board Upper section Part 5 Maintenance BJC 50 5 38...
Страница 201: ...7 1 2 Control board Lower section 5 39 BJC 50 Part 5 Maintenance...
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Страница 209: ...PRINTED IN JAPAN IMPRIME AU JAPON CANON INC The printing paper contains 70 waste paper...
Страница 211: ...0398 SE 2 00 0...
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Страница 214: ...I I CONTENTS A ILLUSTRATION INDEX B PARTS LAYOUT PARTS LIST C SCREWS WASHERS LIST D TOOL E NUMERICAL INDEX...
Страница 216: ...III...
Страница 219: ...B 1 2 1 1 4 5 See FIGURE 7 3 6 7 PRINTER SET FIGURE 1 B PARTS LAYOUT PARTS LIST...
Страница 223: ...B 5 1 2 S3 S2 S4 S3 S3 3 4 FIGURE 3 CONTROL BOARD...
Страница 225: ...B 7 1 S2 2 4 3 FIGURE 4 PRINT UNIT LOWER CASE UNIT...
Страница 227: ...B 9 4 4 4 4 3 3 3 3 2 S2 1 FIGURE 5 PRINTER BASE UNIT...
Страница 229: ...B 11 FIGURE 6 CONTROL BOARD COMPONENT TOP VIEW BOTTOM VIEW...
Страница 237: ...B 19 FIGURE 7 AC ADAPTER 2 3 4 5 1...
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Страница 241: ...T1 FIGURE 8 TOOL D 1 D TOOL...
Страница 242: ...D 2 FIGURE KEY NO PART NUMBER R A N K Q T Y DESCRIPTION REMARKS T 1 CK 0562 000 1 MOLYKOTE GREASE PG 641...
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Страница 249: ...PRINTED IN JAPAN IMPRIME AU JAPON CANON INC The printing paper contains 70 waste paper...