Brother DCP-L8450CDW

User Check

- Check if the paper is loaded into the paper tray 1 correctly.
- Turn back the paper loaded in the paper tray 1 or change the orientation of the paper by 180°.
- Adjust the paper guide corresponding to the paper size.
- Check if too much paper is loaded in the tray.
- Check if the thickness of the paper is 60 to 105 g/m2.
- Fan the stack of paper well and reinsert the papers into the paper tray.
- Replace the toner cartridge with a new one.
- Replace the drum unit with a new one.

Step	Cause	Remedy
1	Foreign object around paper tray 1	Remove the foreign object.
2	T1 paper dust cleaning roller installation failure	Re-assemble the T1 paper dust cleaning roller.
3	Registration front actuator coming off	Re-assemble the registration front actuator.
4	Connection failure of the registration front/rear sensor PCB harness	Reconnect the registration front/rear sensor PCB harness.
5	Registration front sensor failure	Replace the registration front/rear sensor PCB ASSY.
6	Fuser drive gear Z25 damaged	Replace the fuser drive gear Z25.
7	Main motor failure	Replace the process drive unit.
8	Paper feed related gear damaged	Replace the main drive unit.
9	Paper feed unit failure	Replace the paper feed unit.
10	Fuser unit damaged	Replace the fuser unit.
11	Main PCB failure	Replace the main PCB ASSY.