Brother HL-5130 Service Manual page 229

I-21 Horizontal lines
Possible cause Step
Paper feed roller 1
Paper tray 2
contacts
Check
Are the feed roller shaft and
the ground contact connected
correctly?
Are the ground contacts on the
back side of the paper tray
connecting correctly?
6-41
HL-5130/5140/5150D/5170DN SERVICE MANUAL
Result Remedy
No Check the connection
between the shaft and
the ground contact.
Also check the ground
contact on the back of
the feed roller.
No Clean the contacts.
Ground
contacts
(7)