4 - 3 9
Confidential
4.2.5 Problems Encountered Frequently in the Past
This section lists the four problems most frequently encountered during on-site service in the past.
- Paper jams
- Error message "MACHINE ERROR 4F"
- Ink-related problems
- Auto document feeder (ADF) failure (For models with ADF)
[ 1 ] Paper jams
A paper jam may occur not only due to machine malfunction but also to the user's actions.
IMPORTANT:
In some cases, foreign material that has found its way into the machine without the
user realizing can be the cause of a paper jam. Instruct the user to place nothing on top of the
machine that might fall into it.
Problems due to the user's actions
Check
Possible causes
Problems that may result
Recording paper
Paper not suited to use with the
machine was used.
Paper with labels attached, for
example, may leave labels
inside the machine.
For foreign
materials
Fragments of paper that were left
behind when previous paper jams
occurred.
Foreign materials such as tacks
have found their way into the
machine.
Foreign materials can hinder the
paper feed.
Problems due to machine malfunction
Check
Possible causes
Problems that may result
Star wheels on star
wheel support
Star wheels became dislocated
when paper jam occurred.
Dislocated star wheels can
hinder paper feed.
Sensors and
actuators
Any sensor(s) not working.
If a sensor does not turn on, the
related roller(s) will not rotate.
Bank ASSY
The bank ASSY is deformed.
A deformed section on the bank
ASSY can cause double-
feeding.
CR encoder strip
The CR encoder strip is stained.
A stained CR encoder strip can
cause a carriage drive error
during printing that will stop the
printing operation.
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 ...