Brother 09055CDN Service Manual page 134

■ Error code E4
---
Run out of paper.
This error does not usually occur in the normal use. The conceivable causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
<User Check>
- Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
■ Error code E6
Print Unable E6
Turn the power off and then back on again.
Write error in EEPROM of the main PCB.
Step
1 Main PCB failure
■ Error code E7
---
Main PCB error.
This error does not usually occur in the normal use. The conceivable causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
<User Check>
- Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
Cause
Cause
Cause
2-95
Remedy
Replace the main PCB ASSY.
Remedy
Replace the main PCB ASSY.
Remedy
Replace the main PCB ASSY.
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