Brother HL-L2300D Service Manual page 54

 Error code 6101
No Toner
Open the Front Cover, then install Toner Cartridge.
The new toner sensor detected that the toner cartridge was not set.
<User Check>
• Set the toner cartridge correctly.
• Replace the toner cartridge with a new one.
Step
New toner actuator coming off
1
Connection failure of the new
2
toner sensor PCB flat cable
Connection failure of the panel
3
PCB flat cable
New toner sensor PCB failure
4
Panel PCB failure
5
Main PCB failure
6
 Error code 6801
Cooling Down
Wait for a while
The side thermistor of the fuser unit detected a temperature higher than the specified value.
<User Check>
• Lower the room temperature.
• Keep the machine away from heating appliances.
Step
Side thermistor failure
1
Main PCB failure
2
Cause
Reattach the new toner actuator.
Reconnect the new toner sensor PCB flat
cable.
Reconnect the panel PCB flat cable.
Replace the new toner sensor PCB ASSY.
Replace the panel PCB ASSY.
Replace the main PCB ASSY.
Cause
Replace the fuser unit.
Replace the main PCB ASSY.
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Remedy
Remedy
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