Brother DCP7010 Service Manual page 224

I-11 Faulty registration
Possible cause Step
Excessive 1
paper load
Print paper 2
3
Regist rear 4
sensor
position
incorrect
Drum unit 5
failure
Check
Is the paper loaded in the
paper tray more than 27mm
high?
Is the specified weight of
the recommended paper
being used?
Is the first printing position
within ±1mm of the
tolerance specification?
Is the regist rear sensor off
from the correct position?
Is the rotation torque of the
drum unit heavy?
9 -3 6
Result Remedy
Yes Instruct the user to keep paper
loads below 27mm in depth.
No Recommend to use the specified
types of paper.
Yes Adjust the Y offset by using the
utility software supplied.
Yes Reposition the sensor to the
correct position.
Yes Replace the drum unit.
Confidential