Brother HL-1040 - Manual (Page 85)

IV-18
I-21 Light rain
Possible cause Step Check Result
Remedy
Drum unit failure 1 Is the problem solved after
replacing the drum unit with
one that does not contain a
starter sheet**? Yes Replace the drum unit.
High-voltage
power supply
PCB failure 2 Is the problem solved after
replacing the high-voltage
power supply PCB? Yes Replace the high-voltage
power supply PCB.
**Note:
Make sure to use a used drum unit which has already ejected the starter sheet. It is not
possible to find the drum unit failure if you use a new drum unit with a starter sheet in it.
I-22 Ghost
Possible cause Step Check Result
Remedy
Driver setting 1 Is thin paper such as 64g/m 2
used under the thick paper
mode?
Yes Change the current mode to
the normal mode from the
driver setting.
Print 5 or 6 blank pages if this
problem occurs.