Brother MFC-8370DN - No Toner Cartridge; The Drum Unit Reached Its Life and Requires Replacement; The Paper Feed Kit MP Reached Its Life and Requires Replacement. 3-14

3-14
Confidential
■ Error code 44
No toner cartridge
■ Error code 50
The drum unit reached its life and requires replacement.
■ Error code 51
The paper feed kit MP reached its life and requires replacement.
No Toner
Open the Front Cover, then install Toner Cartridge.
<User Check>
• Install a new toner cartridge.
Step Cause Remedy
1
Dirt on electrodes on toner
cartridge and machine body
Clean both electrodes.
(Refer to Fig. 3-2, Fig. 3-3)
2 HVPS PCB unit failure Replace the HVPS PCB unit.
3 Main PCB failure Replace the main PCB ASSY.
Replace Parts
Drum
<User Check>
• Replace the drum unit with a new one.
Replace Parts
PF Kit MP
<User Check>
• Replace the paper feed kit MP with a new one.
Step Cause Remedy
1
Replacement time of the paper
feed kit MP
Replace the paper feed kit MP.