Brother DCP-7055 - Advanced Print Quality Troubleshooting; Hollow Print and All Black Issues; White Lines and Lines Across Page Solutions

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■ Error code C9, CA to CF
These errors do 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.
Error, which cannot be specified, occurs.
■ Error code D1
Modem initialization failed.
■ Error code D2 to D9, DA to DC
These errors do 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.
Error, which cannot be specified, occurs.
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<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.
Print Unable D1
See Troubleshooting and routine maintenance chapter in User's Guide.
<User Check>
• Turn OFF and ON the power and check if the machine recovers.
Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.
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<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.