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6 - 6 7
Confidential
6.1.18 Components on the Engine Unit
(Maintenance unit, Mode switching lever & clutch gear ASSY, Carriage motor, Inner chute ASSY,
Registration sensor PCB, PF encoder PCB, Paper feed motor, Paper pull-in gear shaft, and Paper
pull-in roller holder)
Maintenance unit and mode switching lever & clutch gear ASSY
(1) Remove the three screws from the maintenance unit--two "a" screws from the top and one "b"
screw from the right side.
(2) Take the maintenance unit off the engine unit.
(3) Remove the SF changeover gear and HS changeover gear from the maintenance unit.
(4) Slide the mode switching lever & clutch gear ASSY outwards to remove it.
(5) Unlatch the switching lever guide from the CR guide rail.
(6_56_e)
"a"
"a"
(Front)
CR guide rail
Carriage motor
harness
SF changeover
gear
HS
changeover
gear
Thick
Thin
"b"
Maintenance unit
Mode switching lever &
clutch gear ASSY
Switching lever
guide
PF roller gear R
Apply grease here.
Apply
grease
here.
Apply grease here.
Apply
grease
here.
Cutout
Right hook
1
2
3
Tighten these screws
in the order of 1 to 3 .
"a": Taptite, bind B M3x8
"b": Taptite, cup S M3x6
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 ...