3-22
Confidential
3.2.2.2 Head maintenance mechanism
[ 1 ] Overview
The head maintenance mechanism consists of the maintenance unit and the ink absorber box. (See
the illustration below.)
The maintenance unit has the following mechanisms.
- Head capping mechanism (See
- Carriage lock mechanism (See
- Purge mechanism (See
- Head wiper mechanism (See
- Air removing mechanism (See
The ink absorber box absorbs the ink sucked out by purge operations.
(3_05)
(Head/carriage unit)
Flushing box
(Ink supply tubes)
(Ink refill assembly)
Ink absorber box
Maintenance unit
[ 2 ] Maintenance unit components
See the illustration given on the next page.
- Pump switching unit
This switches the application target of the negative pressure generated by the tube pump (see the
next page) between the head cap for black ink, the one for color ink, and the air vent cap.
Usually the pump switching unit is switched to the opening tube to the atmospheric air so that
the pressure in the head caps and air vent cap is equal to the normal atmospheric pressure.
- Purge cam
This rotating cam drives the carriage lock, the pump switching unit, the air vent rods, the head
wiper, etc.
- Head/carriage lock
This locks the head/carriage unit in its home position so that the head cap unit (see the next
page) protects the head nozzles.
Summary of Contents for DCP 330C - Color Inkjet - All-in-One
Page 1: ...Confidential MULTIFUNCTION EQUIPMENT SERVICE MANUAL MODELS DCP750CW DCP540CN DCP330C DCP130C ...
Page 9: ...vii Confidential Legal limitations for copying ...
Page 10: ...Confidential CHAPTER 1 PARTS NAMES AND FUNCTIONS ...
Page 16: ...1 5 Confidential 1 2 CONTROL PANEL Models with color LCD 1 2 3 4 5 10 9 8 7 6 Color Black ...
Page 17: ...1 6 Confidential Ink ...
Page 18: ...1 7 Confidential Models with monochrome LCD 1 2 3 4 5 10 9 8 7 6 ...
Page 19: ...1 8 Confidential ...
Page 21: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Page 39: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Page 88: ...Confidential CHAPTER 4 ERROR INDICATION AND TROUBLESHOOTING ...
Page 131: ...Confidential CHAPTER 6 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 209: ...Confidential CHAPTER 7 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 222: ...7 11 Confidential Head Positioning Test Pattern ...
Page 226: ...7 15 Confidential Paper Feeding Check Pattern for the Paper Feed Roller ...
Page 227: ...7 16 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Page 229: ...7 18 Confidential Vertical Alignment Check Patterns 600DPI 1200DPI ...
Page 232: ...7 21 Confidential Margin Check Pattern ...
Page 241: ...Confidential CHAPTER 8 CLEANING ...
Page 245: ...Confidential CHAPTER 9 MAINTENANCE MODE ...
Page 253: ...9 6 Confidential Scanning Compensation Data List a b c d e f i ...
Page 256: ...9 9 Confidential Test Pattern ...
Page 261: ...9 14 Confidential Configuration List ...
Page 269: ...9 22 Confidential Paper Feeding Check Pattern for the Paper Feed Roller ...
Page 270: ...9 23 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Page 275: ...9 28 Confidential Vertical Alignment Check Patterns 600DPI 1200DPI ...
Page 278: ...9 31 Confidential Margin Check Pattern ...
Page 381: ...Confidential Power supply PCB U S A and Canadian models ...
Page 382: ...Confidential Power supply PCB European Asian and Oceanian models ...
Page 383: ...Confidential January 07 SM FAX054 8CAA01 2 Printed in Japan ...