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4-42
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
[ 1 ] Paper jams
A paper jam may occur not only due to machine malfunction but also to the user's actions.
NOTE:
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.
NOTE:
When removing foreign materials from the machine, take special care not to
contaminate or scratch the CR encoder strip. If the encoder strip is contaminated or scratched,
replace it. (Refer to
.)
NOTE:
After removing jammed paper from the machine, be sure to check that no fragment of
paper remains in the machine.
Problems due to the user's actions
Problems due to machine malfunction
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.
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.
Bank ASSY
Paper tray
Содержание MFC 5490CN - Color Inkjet - All-in-One
Страница 7: ...v Confidential SAFETY PRECAUTIONS ...
Страница 8: ...vi Confidential ...
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Страница 14: ...Confidential CHAPTER 1 PARTS NAMES AND FUNCTIONS ...
Страница 18: ...1 3 Confidential 1 2 CONTROL PANEL 11 10 8 9 7 1 2 3 4 5 6 ...
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Страница 21: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Страница 28: ...2 6 Confidential 2 2 SPECIFICATIONS LIST ...
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Страница 35: ...2 13 Confidential ...
Страница 36: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Страница 88: ...Confidential CHAPTER 4 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 142: ...Confidential CHAPTER 5 HANDLING DATA HELD IN THE MACHINE PRIOR TO REPAIR ...
Страница 149: ...Confidential CHAPTER 6 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Страница 240: ...Confidential CHAPTER 7 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 246: ...7 4 Confidential 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Страница 254: ...7 12 Confidential Head Positioning Test Pattern ...
Страница 258: ...7 16 Confidential Paper Feeding Check Pattern for the Paper Feed Roller ...
Страница 259: ...7 17 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Страница 261: ...7 19 Confidential Vertical Alignment Check Patterns 2 2 ...
Страница 265: ...7 23 Confidential Left and Right Margin Check Pattern ...
Страница 266: ...7 24 Confidential Bottom Margin Check Pattern ...
Страница 276: ...7 34 Confidential A B C D ...
Страница 279: ...Confidential CHAPTER 8 CLEANING ...
Страница 283: ...Confidential CHAPTER 9 MAINTENANCE MODE ...
Страница 291: ...9 6 Confidential Scanning Compensation Data List ...
Страница 294: ...9 9 Confidential Test Pattern ...
Страница 299: ...9 14 Confidential Configuration List ...
Страница 314: ...9 29 Confidential Paper Feeding Check Pattern for the Paper Feed Roller ...
Страница 315: ...9 30 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Страница 320: ...9 35 Confidential Vertical Alignment Check Patterns 1 2 ...
Страница 321: ...9 36 Confidential Vertical Alignment Check Patterns 2 2 ...
Страница 325: ...9 40 Confidential Left and Right Margin Check Pattern ...
Страница 326: ...9 41 Confidential Bottom Margin Check Pattern ...
Страница 356: ...App 2 3 Confidential 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Страница 436: ...App 6 4 Confidential B Power supply PCB 100 V series ...
Страница 437: ...App 6 5 Confidential B Power supply PCB 200 V series ...