Brother DCP-J4110DW Service Manual page 62

Error Code 20

Cannot Detect
Cannot identify a black ink cartridge.
The ink cartridge detection sensor and the ink remaining sensor are detecting.
Error Code 21
Cannot Detect
Cannot identify a yellow ink cartridge.
The ink cartridge detection sensor and the ink remaining sensor are detecting.
Error Code 22
Cannot Detect
Cannot identify a cyan ink cartridge.
The ink cartridge detection sensor and the ink remaining sensor are detecting.
Error Code 23
Cannot Detect
Cannot identify a magenta ink cartridge.
The ink cartridge detection sensor and the ink remaining sensor are detecting.
User Check
- Check if incompatible ink cartridge is loaded.
- Reload the ink cartridge.
- Replace the ink cartridge.
- Check if ink cartridge has been already set before instruction for ink cartridge setting during
initial installation.
Step
1 Each ink cartridge sensor
defective
2 Main PCB defective
Cause
Replace the ink refill ASSY.
Replace the main PCB ASSY.
2-25
LCD
LCD
LCD
LCD
Solution
Confidential