HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL
Confidential
4-47
(I-11) Faulty registration
Possible cause
Step
Check
Result
Remedy
Excessive paper
load
1
Is the paper loaded in the
paper tray more than 27mm
high?
Yes
Instruct the user to keep paper
loads below 27mm in depth.
2
Is the specified weight of the
recommended paper being
used?
No
Recommend to use the
specified types of paper.
Print paper
3
Is the first printing position
within ±1mm of the tolerance
specification?
Yes
Adjust the Y offset by using the
utility software supplied.
Regist rear
sensor position
incorrect
4
Is the regist rear sensor off
from the correct position?
Yes
Reposition the sensor to the
correct position.
Drum unit failure
5
Is the rotation torque of the
drum unit heavy?
Yes
Replace the drum unit.