3-24
Confidential
[ 3 ] Mechanisms constituting the head maintenance mechanism
(1) Head capping mechanism
When the power is off or the machine is not printing, this mechanism fits the head cap unit (which
contains two head caps) tightly over the print head to prevent the head nozzles from drying up and
to keep dust off the head nozzle surface.
This mechanism is driven by the head/carriage unit. When the head/carriage unit returns to its
home position, it presses against the head cap holder in the maintenance unit. The lift arms in the
maintenance unit raise the head cap unit, fitting it tightly over the head nozzle surface to protect it.
Head/carriage unit
Head cap unit
(Containing two
head caps)
Lift arms
Head cap holder
(Purge_3_1)
Head cap for black ink
Print head
Head cap for color ink
Color drain tube
Main drain tube
Pump switching unit
Black drain tube
(Purge_3_2)
To opening to
atmospheric air
To air vent cap
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 ...