6-38
Confidential
(3) Disconnect the main-MJ (EXT) harness from the main PCB and release it from the cable
guides provided on the SDAA enclosure.
(4) Press the right and left ends of the SDAA enclosure inwards and remove it from the main
PCB.
(5) Disconnect the main-MJ (LINE) harness (2-wire, yellow) from the main PCB.
(6) Remove two "c" screws from the main PCB, then lift up the PCB.
(7) Remove screw "d" and "e" from the main PCB shield frame, then lift up the shield frame.
(The screw "d" also secures the MJ/PS shield unit.)
"c" and "e": Taptite, cup B M3x10
"d": Screw, pan (s/p washer) M3x8
Assembling Note:
If you replace the main PCB, you need to load programs onto the flash
ROM, restore the machine information that has been backed up in an external memory, and
make specified adjustments of various settings (refer to
). Make sure
beforehand that the head/carriage unit has been mounted.
SDAA enclosure
"c"
"e"
"d"
Main-MJ (EXT)
harness
Main-MJ (LINE)
harness
Carriage motor
harness
ASF motor
harness
Paper feed motor
harness
PF encoder/registration
sensor harness
Power supply harness
Ink empty sensor
harness
Ink cartridge detection
sensor harness
Cap lift cam switch harness
Purge cam switch harness
ASF encoder harness
Main PCB shield frame
Main PCB
"c"
(6_40)
Содержание MFC 5890CN - Color Inkjet - All-in-One
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Страница 16: ...Confidential CHAPTER 1 PARTS NAMES AND FUNCTIONS ...
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Страница 24: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Страница 48: ...2 22 Confidential ITU T Test Chart 1 ...
Страница 49: ...2 23 Confidential Brother Chart ...
Страница 50: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Страница 96: ...Confidential CHAPTER 4 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 100: ...4 2 Confidential 1 Error messages appearing on the LCD ...
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Страница 102: ...4 4 Confidential Check that you have subscribed to the Caller ID service ...
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Страница 150: ...Confidential CHAPTER 5 HANDLING DATA HELD IN THE MACHINE PRIOR TO REPAIR ...
Страница 154: ...Confidential CHAPTER 6 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Страница 245: ...Confidential CHAPTER 7 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 252: ...7 5 Confidential 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Страница 260: ...7 13 Confidential Head Positioning Test Pattern ...
Страница 264: ...7 17 Confidential Paper Feeding Check Pattern for the Paper Feed Roller ...
Страница 265: ...7 18 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Страница 267: ...7 20 Confidential Vertical Alignment Check Patterns 2 2 ...
Страница 271: ...7 24 Confidential Left and Right Margin Check Pattern ...
Страница 272: ...7 25 Confidential Bottom Margin Check Pattern ...
Страница 282: ...7 35 Confidential ADF Copy Chart A B C D ...
Страница 286: ...Confidential CHAPTER 8 CLEANING ...
Страница 290: ...Confidential CHAPTER 9 MAINTENANCE MODE ...
Страница 298: ...9 6 Confidential Scanning Compensation Data List ...
Страница 301: ...9 9 Confidential Test Pattern ...
Страница 306: ...9 14 Confidential Configuration List ...
Страница 322: ...9 30 Confidential Paper Feeding Check Pattern for the Paper Feed Roller ...
Страница 323: ...9 31 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Страница 328: ...9 36 Confidential Vertical Alignment Check Patterns 1 2 ...
Страница 329: ...9 37 Confidential Vertical Alignment Check Patterns 2 2 ...
Страница 333: ...9 41 Confidential Left and Right Margin Check Pattern ...
Страница 334: ...9 42 Confidential Bottom Margin Check Pattern ...
Страница 364: ...App 2 3 Confidential 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Страница 445: ...App 6 4 Confidential B Power supply PCB 100 V series ...
Страница 446: ...App 6 5 Confidential B Power supply PCB 200 V series ...