3-23
Confidential
Ink refill assembly components and their main roles
- Ink refill case
- Cartridge lock levers
- Ink refill base and its foam
- Ink cartridge detection sensors (on the ink cartridge detection sensor PCB)
- Ink empty sensors (on the ink empty sensor PCB)
- Ink foam and its case
Inserting the ink cartridges into the ink refill case and securing them with the cartridge lock
levers forces the cartridges' ink supply ports into close contact with the ink refill base to prevent
ink leakage.
The ink from the ink cartridges flows through the ink flow channels provided in the ink refill
base into the ink supply tubes. As the ink level in an ink cartridge drops, the pressure inside
falls, drawing air in the ink cartridge.
The ink cartridge detection sensors detect ink cartridges inserted when the machine is powered
ON and the ink cartridge cover is opened.
The ink empty sensors detect ink remaining in the ink cartridges loaded. An ink empty sensor
actuator blocking the light beam to an ink empty sensor indicates that there is ink in the ink
cartridge. When ink runs low, the actuator moves out of the beam, activating the sensor ("Ink
near-empty") and showing the "Ink low" message.
If any of the ink cartridges is replaced with the one having different ink volume when the
machine power is OFF, the corresponding ink cartridge detection sensor and ink empty sensor
issue different signals when the power is turned ON next time so that the controller prompts the
user to reload the ink cartridge.
At the back of the ink refill case is an ink foam that absorbs any ink that leaks from the air
intake ports of the ink cartridges loaded when the machine is tilted during transportation or in
storage, preventing ink spread in the machine.
[ 6 ] Ink supply tubes
These are made of low-density polyethylene (LDPE) providing a highly impermeable barrier
against air ingress and drying out of the ink during extended periods of nonuse. This material is
also soft and highly flexible to better withstand the sharp and frequent bending associated with
high-speed head operation repeatedly over extended periods.
Summary of Contents for MFC 5490CN - Color Inkjet - All-in-One
Page 7: ...v Confidential SAFETY PRECAUTIONS ...
Page 8: ...vi Confidential ...
Page 9: ...vii Confidential ...
Page 10: ...viii Confidential ...
Page 11: ...ix Confidential ...
Page 12: ...x Confidential ...
Page 13: ...xi Confidential ...
Page 14: ...Confidential CHAPTER 1 PARTS NAMES AND FUNCTIONS ...
Page 18: ...1 3 Confidential 1 2 CONTROL PANEL 11 10 8 9 7 1 2 3 4 5 6 ...
Page 19: ...1 4 Confidential ...
Page 21: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Page 28: ...2 6 Confidential 2 2 SPECIFICATIONS LIST ...
Page 29: ...2 7 Confidential ...
Page 30: ...2 8 Confidential ...
Page 31: ...2 9 Confidential ...
Page 32: ...2 10 Confidential ...
Page 33: ...2 11 Confidential ...
Page 34: ...2 12 Confidential ...
Page 35: ...2 13 Confidential ...
Page 36: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Page 88: ...Confidential CHAPTER 4 ERROR INDICATION AND TROUBLESHOOTING ...
Page 142: ...Confidential CHAPTER 5 HANDLING DATA HELD IN THE MACHINE PRIOR TO REPAIR ...
Page 149: ...Confidential CHAPTER 6 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 240: ...Confidential CHAPTER 7 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 246: ...7 4 Confidential 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Page 254: ...7 12 Confidential Head Positioning Test Pattern ...
Page 258: ...7 16 Confidential Paper Feeding Check Pattern for the Paper Feed Roller ...
Page 259: ...7 17 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Page 261: ...7 19 Confidential Vertical Alignment Check Patterns 2 2 ...
Page 265: ...7 23 Confidential Left and Right Margin Check Pattern ...
Page 266: ...7 24 Confidential Bottom Margin Check Pattern ...
Page 276: ...7 34 Confidential A B C D ...
Page 279: ...Confidential CHAPTER 8 CLEANING ...
Page 283: ...Confidential CHAPTER 9 MAINTENANCE MODE ...
Page 291: ...9 6 Confidential Scanning Compensation Data List ...
Page 294: ...9 9 Confidential Test Pattern ...
Page 299: ...9 14 Confidential Configuration List ...
Page 314: ...9 29 Confidential Paper Feeding Check Pattern for the Paper Feed Roller ...
Page 315: ...9 30 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Page 320: ...9 35 Confidential Vertical Alignment Check Patterns 1 2 ...
Page 321: ...9 36 Confidential Vertical Alignment Check Patterns 2 2 ...
Page 325: ...9 40 Confidential Left and Right Margin Check Pattern ...
Page 326: ...9 41 Confidential Bottom Margin Check Pattern ...
Page 356: ...App 2 3 Confidential 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Page 436: ...App 6 4 Confidential B Power supply PCB 100 V series ...
Page 437: ...App 6 5 Confidential B Power supply PCB 200 V series ...