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Confidential
2-24
Error Code 20
Cannot identify a black ink cartridge.
The ink cartridge detection sensor and the ink remaining sensor are detecting.
Error Code 21
Cannot identify a yellow ink cartridge.
The ink cartridge detection sensor and the ink remaining sensor are detecting.
Error Code 22
Cannot identify a cyan ink cartridge.
The ink cartridge detection sensor and the ink remaining sensor are detecting.
Error Code 23
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.
Cannot Detect
LCD
Cannot Detect
LCD
Cannot Detect
LCD
Cannot Detect
LCD
Step
Cause
Solution
1
Each ink cartridge sensor
defective
Replace the ink refill ASSY.
2
Main PCB defective
Replace the main PCB ASSY.
Summary of Contents for MFC-J6920DW
Page 123: ...3 3 Confidential 2 PACKING ...
Page 146: ...3 26 Confidential 3 Set the protective part Protective part ...
Page 308: ...5 37 Confidential pfadj2 Pattern ...
Page 315: ...5 44 Confidential Margin Check Pattern ...
Page 362: ...App 3 8 Confidential When the following screen appears click Close to close the screen ...