3-29
Confidential
[ 4 ] Purge mechanism details
This mechanism draws its power from the paper feed motor on the left side of the engine chassis.
Power transmission route from paper feed motor to maintenance unit
The paper feed motor drives the PF roller gear L that rotates the paper feed roller. At the right end
of the roller (left in the illustration because the view is from the rear) is the PF roller gear R which
always meshes with the clutch gear.
The clutch gear also meshes with the SF changeover gear when the mode switching lever is in the
leftmost position (as viewed from the front). When the head/carriage unit travels from the left to
right to reach the purge position, a tab on the carriage rear panel pushes the mode switching lever to
the right (left in the illustration). The clutch gear spring pushes the clutch gear to the right, away
from the SF changeover gear and HS changeover gear, to mesh with the purge gear. This way, the
clutch gear switches the operation mode to the purge mode.
The power transmission route and operation mode switching are detailed in
(3_06)
Paper feed roller
(Front)
Mode switching lever
Switching lever spring
Clutch gear
Purge bevel gear
Purge gear
HS changeover gear
SF changeover gear
Clutch gear spring
PF roller gear R
Paper feed motor
PF roller gear L
(Right)
Summary of Contents for MFC 685CW - Color Inkjet - All-in-One
Page 7: ...v Confidential ...
Page 8: ...vi Confidential ...
Page 9: ...vii Confidential ...
Page 10: ...viii Confidential ...
Page 11: ...ix Confidential Legal limitations for copying ...
Page 12: ...Confidential CHAPTER 1 PARTS NAMES AND FUNCTIONS ...
Page 18: ...1 5 Confidential ...
Page 19: ...1 6 Confidential ...
Page 20: ...1 7 Confidential ...
Page 23: ...1 10 Confidential ...
Page 30: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Page 50: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Page 99: ...Confidential CHAPTER 4 ERROR INDICATION AND TROUBLESHOOTING ...
Page 152: ...Confidential CHAPTER 5 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...
Page 156: ...5 3 Confidential Cover page sample End page sample ...
Page 157: ...Confidential CHAPTER 6 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 250: ...Confidential CHAPTER 7 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 263: ...7 11 Confidential Head Positioning Test Pattern ...
Page 267: ...7 15 Confidential Paper Feeding Check Pattern for the Paper Feed Roller ...
Page 268: ...7 16 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Page 270: ...7 18 Confidential Vertical Alignment Check Patterns 600DPI 1200DPI ...
Page 273: ...7 21 Confidential Margin Check Pattern ...
Page 288: ...Confidential CHAPTER 8 CLEANING ...
Page 292: ...Confidential CHAPTER 9 MAINTENANCE MODE ...
Page 300: ...9 6 Confidential Scanning Compensation Data List a b c d e f i ...
Page 303: ...9 9 Confidential Test Pattern ...
Page 308: ...9 14 Confidential Configuration List ...
Page 315: ...9 21 Confidential Cover page sample End page sample ...
Page 320: ...9 26 Confidential Paper Feeding Check Pattern for the Paper Feed Roller ...
Page 321: ...9 27 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Page 326: ...9 32 Confidential Vertical Alignment Check Patterns 600DPI 1200DPI ...
Page 329: ...9 35 Confidential Margin Check Pattern ...
Page 448: ...Confidential B Power supply PCB U S A and Canadian models ...
Page 449: ...Confidential B Power supply PCB European Asian and Oceanian models ...
Page 453: ...Confidential May 07 SM FAX067 8CAE03 1 Printed in Japan ...