Confidential
2-86
4.10.4 Internal memory errors
User Check
- Delete saved print data and fax data.
- Disconnect and insert again the power cord.
4.10.5 Security Function Lock related problems
User Check
- Ask administrator to release security function lock.
- Delete the personal information to unlock the password.
4.10.6 Ink cartridge related problems
User Check
- Check if incompatible ink cartridge is set.
- Reset the ink cartridge.
- Check if ink cartridge has been already set before instruction for ink cartridge setting
during initial installation.
4.10.7 Loud printing sound
User Check
- Set the silent mode enabled in the user menu.
Step
Cause
Solution
1
Main PCB defective
Replace the main PCB ASSY.
Step
Cause
Solution
1
Main PCB defective
Replace the main PCB ASSY.
Step
Cause
Solution
1
Ink sensor flat cable
connection failure
Reconnect the ink sensor flat cable.
2
Each ink cartridge sensor, ink
remaining sensor, ink cartridge
detection sensor, or IC chip
PCB defective
Replace the ink refill ASSY.
3
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 ...