
3-13
Confidential
[ 3 ] Head/carriage unit
The head/carriage unit consists of a front end (ink-jet head) and a back end (damper and air vent
unit) as shown below.
The front end consists of metal plates laminated together and etched to form ink flow channels.
Piezoelectric ceramic actuators generate the spray pressure. The response of individual front
ends to applied voltages and waveforms varies, however, because of the nature of piezoelectric
materials, fluctuation in manufacturing accuracy, and other factors. The front end therefore
leaves the production line with head property labels giving property data. The manufacturer
writes this property data to the EEPROM on the main PCB incorporating this unit. Based on the
property data of the front end, the processor drives piezoelectric ceramic actuators to insure
consistent performance without fluctuations.
Filter
Head driver
Metal plates
Piezo plate
Front end
(Ink-jet head)
Nozzle plate
Back end
(Buffer and air vent unit)
(Head)
(Front)
Содержание DCP-6690CW
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Страница 14: ...Confidential CHAPTER 1 PARTS NAMES AND FUNCTIONS ...
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Страница 28: ...Confidential CHAPTER 2 SPECIFICATIONS ...
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Страница 53: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Страница 110: ...Confidential CHAPTER 4 ERROR INDICATION AND TROUBLESHOOTING ...
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Страница 172: ...Confidential CHAPTER 5 HANDLING DATA HELD IN THE MACHINE PRIOR TO REPAIR ...
Страница 179: ...Confidential CHAPTER 6 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Страница 292: ...Confidential CHAPTER 7 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 299: ...7 5 Confidential 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Страница 308: ...7 14 Confidential Head Positioning Test Pattern ...
Страница 314: ...7 20 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Страница 315: ...7 21 Confidential Paper Feeding Check Pattern for the Paper Feed Roller Paper Tray 2 ...
Страница 317: ...7 23 Confidential Vertical Alignment Check Patterns 2 2 ...
Страница 321: ...7 27 Confidential Left and Right Margin Check Pattern ...
Страница 322: ...7 28 Confidential Bottom Margin Check Pattern ...
Страница 333: ...7 39 Confidential ADF Copy Chart A B C D ...
Страница 337: ...Confidential CHAPTER 8 CLEANING ...
Страница 341: ...8 3 Confidential Maintenance unit Head caps Head wiper cleaning_BHM9_E Rubycel stick ...
Страница 344: ...Confidential CHAPTER 9 MAINTENANCE MODE ...
Страница 353: ...9 7 Confidential Scanning Compensation Data List ...
Страница 356: ...9 10 Confidential Test Pattern ...
Страница 361: ...9 15 Confidential Configuration List ...
Страница 379: ...9 33 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Страница 380: ...9 34 Confidential Paper Feeding Check Pattern for the Paper Feed Roller Paper Tray 2 ...
Страница 384: ...9 38 Confidential Vertical Alignment Check Patterns 1 2 ...
Страница 385: ...9 39 Confidential Vertical Alignment Check Patterns 2 2 ...
Страница 389: ...9 43 Confidential Left and Right Margin Check Pattern ...
Страница 390: ...9 44 Confidential Bottom Margin Check Pattern ...
Страница 421: ...App 2 3 Confidential 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Страница 502: ...App 6 4 Confidential B Power supply PCB 100 V series ...
Страница 503: ...App 6 5 Confidential B Power supply PCB 200 V series ...