Brother DCP-9055CDN Service Manual page 87

■ Error code 44 (K)
No Toner
Open the Front Cover, then install Toner Cartridge. Black (K)
Error code 45 (Y)
No Toner
Open the Front Cover, then install Toner Cartridge. Yellow (Y)
Error code 46 (M)
No Toner
Open the Front Cover, then install Toner Cartridge. Magenta (M)
Error code 47 (C)
No Toner
Open the Front Cover, then install Toner Cartridge. Cyan (C)
The toner cartridge of the appropriate color is not installed.
<User Check>
- Install the toner cartridge of the color displayed on the LCD.
Step
1 Toner/New sensor PCB failure
2 Engine PCB failure
3 Main PCB failure
Cause
2-49
Remedy
Check the sensor performance following
the procedure described in
32". If any problem occurs, replace the
Toner/New sensor PCB ASSY.
Replace the engine PCB ASSY.
Replace the main PCB ASSY.
"Function code
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