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Confidential
[ 2 ] "MACHINE ERROR 4F" error message
The error message "MACHINE ERROR 4F" appears if the head drive voltage drops from the
high to low level in an abnormally short period. The source of the problem is mainly the head/
carriage unit.
[ 3 ] Ink-related problems
Problems of this nature may arise not only due to machine malfunction but also to the user's
actions.
IMPORTANT:
In many cases, the user fails to set ink cartridges in place.
Problems due to the user's actions
Problems due to machine malfunction
Check
Possible causes
Problems that may result
Head/carriage unit
- The carriage-head flat cable is
disconnected from the carriage PCB.
- Piezoelectric ceramic actuator
defective. (Cracks or rare short)
At the start of printing or head
cleaning operation, correct voltage
will not be applied to the
electrodes on the surface of the
piezoelectric ceramic actuator
(described in
Main PCB
- A power failure when the machine
was in operation resulted in a
damaged part.
- The drive voltage and current supplied
are too low to drive the head/carriage
unit.
- Voltage detection circuit defective.
The head drive voltage drops from
the high to low level in an
abnormally short period.
The head drive voltage becomes
too high or low.
Carriage PCB
- Head power circuit insulation failure.
Check
Possible causes
Problems that may result
Ink cartridges
- Ink cartridges are not inserted fully
into the ink refill ASSY.
- One or more of the ink cartridges are
not loaded.
- One or more of the ink cartridges has
run out of ink.
The machine will not be able to
print.
Check
Possible causes
Problems that may result
Head/carriage unit
- Air bubbles, high viscosity ink, or
foreign materials have found their
way into the head/carriage unit.
- Head flat cables are broken.
- The carriage-head flat cable has not
been inserted into the carriage PCB.
Dot missing occurs on the
printout.
The machine will not be able to
print or drive the head/carriage
unit.
Maintenance unit
- Air bubbles, high viscosity ink, or
foreign materials get into the
maintenance unit.
- Torque not transmitted.
- Drain tube bent or pinched.
Head cleaning operation will not
be possible and/or the
maintenance unit will not work.
CIS unit
The CIS unit is weak in identifying
colors.
The quality of print colors in
copying operation will be low.
Содержание MFC 5490CN - Color Inkjet - All-in-One
Страница 7: ...v Confidential SAFETY PRECAUTIONS ...
Страница 8: ...vi Confidential ...
Страница 9: ...vii Confidential ...
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Страница 11: ...ix Confidential ...
Страница 12: ...x Confidential ...
Страница 13: ...xi Confidential ...
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 ...
Страница 19: ...1 4 Confidential ...
Страница 21: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Страница 28: ...2 6 Confidential 2 2 SPECIFICATIONS LIST ...
Страница 29: ...2 7 Confidential ...
Страница 30: ...2 8 Confidential ...
Страница 31: ...2 9 Confidential ...
Страница 32: ...2 10 Confidential ...
Страница 33: ...2 11 Confidential ...
Страница 34: ...2 12 Confidential ...
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 ...