Brother DCP-9045CDN Service Manual page 40

Error code 74
(* This error can be found out only in
Print Unable 74
Toner cartridge whose color is used reaches the end of life during printing.
Error code 87
Calibrate
Calibration failed. Insufficient Toner for Calibration.
Toner cartridge whose color is used reaches the end of life when implementing calibration from
the control panel.
Error code 9E
Registration
Registration failed. Insufficient Toner for Registration.
Toner cartridge whose color is used reaches the end of life when implementing auto color
registration from the control panel.
User Check
- If any of the toner cartridges reaches the end of life, replace it with a new one.
Step
1 Toner sensor PCB (TE/NEW)
failure (Toner empty)
2 Engine PCB failure
Error code 76
Print Unable 76
Turn the power off and then back on again.
Fuser unit failure (The center thermistor detects rapid temperature rising.)
Step
1 Fuser unit failure
Error code 78
Print Unable 78
Turn the power off and then back on again.
Fuser unit failure (The center thermistor detects rapid temperature falling.)
Step
1 Harness connection failure
between fuser unit connector
and engine PCB
2 Fuser unit failure
Cause
Check the sensor performance following the
procedure described in
any problem occurs, replace the toner sensor PCB
(TE/NEW) of the appropriate color.
Replace the engine PCB ASSY.
Cause
Replace the fuser unit.
Cause
Check the harness connection between the fuser
unit connector and engine PCB, and reconnect it.
Replace the fuser unit.
1-21
"Maintenance mode 82".)
Remedy
"Maintenance mode
Remedy
Remedy
32". If
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