Troubleshooting; Error Cause And Solutions - Brother MFC Series Service Manual

4

TROUBLESHOOTING

4.1

Error Cause and Solutions

■ Error Code 20
Cannot Detect
Cannot identify a black Ink cartridge
Detected by the Ink cartridge detection sensor and the Ink remaining sensor.
Error Code 21
Cannot Detect
Cannot identify a yellow Ink cartridge
Detected by the Ink cartridge detection sensor and the Ink remaining sensor.
Error Code 22
Cannot Detect
Cannot identify a cyan Ink cartridge
Detected by the Ink cartridge detection sensor and the Ink remaining sensor.
Error Code 23
Cannot Detect
Cannot identify a magenta Ink cartridge
Detected by the Ink cartridge detection sensor and the Ink remaining sensor.
<User Check>
- Check if an incompatible Ink cartridge is loaded.
- Reload the Ink cartridge.
- Replace the Ink cartridge.
- During initialization, check if other cartridges not supplied were not set before the
instruction to do so.
Step
1 Each Ink cartridge sensor is
defective
2 Main PCB defective
Cause
Replace the Ink refill ASSY.
Replace the Main PCB ASSY.
2-19
LCD
LCD
LCD
LCD
Solution
Confidential