Brother MFC-J6510DW Service Manual page 58

Error Code 24
Wrong INK Color
An ink cartridge of wrong color is loaded. (A color ink cartridge is loaded in the black ink
cartridge slot.)
User Check
- Load the ink cartridge into place.
- Replace the ink cartridge.
Step
1 Ink cartridge detection sensor
defective
2 Ink remaining sensor or high-
yield ink cartdige sensor failure
3 Main PCB defective
Cause
Replace the ink cartridge detection sensor.
Replace the ink refill ASSY.
Replace the main PCB ASSY.
2-28
LCD
Solution
Confidential