Roland VersaUV LEJ-640 Service Notes page 204

Fix the Carriage Cover temporarily with the 2 screws shown
13
in the fi gure. And tighten them without distorting the Cover.
Be careful not to distort the Carriage Cover when tight-
ening the 2 screws.
The Carriage can be distorted and it may cause the
head position problem.
The screws for fi xing the Carriage
Cover are the screw with washer.
Move the Head Carriage in a whole width of the machine.
14
Make sure that the Encoder Scale doesn't make contact with
the Encoder Module and also Encoder Scale is between the
slit of the Encoder Module.
Carry out the [4-6 LINEAR ENCODER SETUP].
Carriage Cover
Screw
3-130
Hook