Brother MFC-9340CDW - Page 158

2-119
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Step Cause Remedy
1 White level calibration data
failure
Perform the acquisition of white level data.
(Function code 55)
2 Firmware inconsistency Refer to "1.1 Installing the Firmware (Sub
firmware, Panel firmware, Main Firmware)" in
Chapter 4 and install the latest main
firmware.
3 First side or second side CIS
unit failure
Replace the first side or second side CIS
unit.
4 Main PCB failure Replace the main PCB ASSY.