Brother DCPJ525W Service Manual page 68

Error Code 20
Cannot Detect
Cannot identify a black ink cartridge.
Error Code 21
Cannot Detect
Cannot identify a yellow ink cartridge.
Error Code 22
Cannot Detect
Cannot identify a cyan ink cartridge.
Error Code 23
Cannot Detect
Cannot identify a magenta ink cartridge.
User Check
- Reload the ink cartridge.
- Replace the ink cartridge.
Step
1 Connection failure of flat cables
related to the ink refill ASSY
2 Ink cartridge detection sensor
defective
3 Ink remaining sensor or high-
yield ink cartridge sensor
defective
4 Main PCB defective
Cause
Check the connection and reconnect the flat cables.
Replace the ink cartridge detection sensor PCB
ASSY.
Replace the ink refill ASSY.
Replace the main PCB ASSY.
2-23
LCD
LCD
LCD
LCD
Solution
Confidential