Brother 2150N, 2170W, HL-2140 7)Drum error, 6)No paper fed manual feed slot

6)No paper fed manual feed slot

No paper in manual feeding

User Check

•Load the paper

Step	Cause	Remedy
	Harness connection failure of	Check the harness connection of the
1	registration front sensor PCB	registration front sensor PCB ASSY.
	ASSY
	Registration front sensor PCB	Check the registration front sensor
	failure	performance following the procedure in
2		"Factory Inspection Mode" (Chapter 5).
		If any problem occurs, replace the
		registration front sensor PCB ASSY.
3	Toner sensor PCB failure	Replace the toner sensor PCB.
4	Main PCB failure	Replace the main PCB ASSY.

7)Drum error

Dirt on drum unit

User Check

•Clean the corona wire in the drum unit.

•Replace the drum unit with a new one, and reset the drum counter.

Step	Cause	Remedy
1	Dirt or dust on drum unit	Clean the electrodes on the drum unit
	electrodes	(Refer to Fig. 1-1).
2	High-voltage power supply PCB	Replace the high-voltage power supply
	failure	PCB.
3	Main PCB ASSY failure	Replace the main PCB ASSY failure.

1-10 Confidential