Brother MFC-J6510DW Service Manual page 59

Error Code 26
Cannot Print
Replace INK [Black]
Replace black ink cartridge. (Detected by the black ink remaining sensor)
Error Code 27
Cannot Print
Replace INK [Yellow]
Replace yellow ink cartridge. (Detected by the yellow ink remaining sensor)
Error Code 28
Cannot Print
Replace INK [Cyan]
Replace cyan ink cartridge. (Detected by the cyan ink remaining sensor)
Error Code 29
Cannot Print
Replace INK [Magenta]
Replace magenta ink cartridge. (Detected by the magenta ink remaining sensor)
User Check
- Reload the ink cartridge.
- Replace the ink cartridge.
Step
1 Ink remaining sensor defective
2 Main PCB defective
Cause
Replace the ink refill ASSY.
Replace the main PCB ASSY.
2-29
LCD
LCD
LCD
LCD
Solution
Confidential