Brother DCP-J552DW Service Manual page 56

■ Error Code 26
B&W 1-sided Print Only / Replace Ink
Cannot Print / Replace Ink
The black ink cartridge has reached its replacement period.
Ink ejection has reached the specified number of times when the ink remaining sensor determines
that there is no remaining ink.
Error Code 27
B&W 1-sided Print Only / Replace Ink
Cannot Print / Replace Ink
The yellow ink cartridge has reached its replacement period.
Ink ejection has reached the specified number of times when the ink remaining sensor determines
that there is no remaining ink.
Error Code 28
B&W 1-sided Print Only / Replace Ink
Cannot Print / Replace Ink
The cyan ink cartridge has reached its replacement period.
Ink ejection has reached the specified number of times when the ink remaining sensor determines
that there is no remaining ink.
Error Code 29
B&W 1-sided Print Only / Replace Ink
Cannot Print / Replace Ink
The magenta ink cartridge has reached its replacement period.
Ink ejection has reached the specified number of times when the ink remaining sensor determines
that there is no remaining ink.
<User Check>
- 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.
2-23
LCD
LCD
LCD
LCD
Solution
Confidential