Roland VersaUV LEJ-640 Service Notes page 257

Select [I/S MENU] > [I/S CONTROL] > [CAP] > [OPEN],
2
and press the [ENTER] key.
The Cap Unit moves down and be free to move by
hand.
This adjustment cannot be done correctly
when the Head Carriage is capped.
Turn off the sub power SW and main power SW.
3
Remove the Front Rail Cover and Top Cover.
4
Measure the tension of the belt at the position above
5
the center of the 9th grit roller from the left using TEN-
SION GAUGE(ST-001).
Press the upper belt downward with the gauge to make
slight contact with the lower belt. The tension is proper
when the measured value is 0.7kgf to 0.94kgf.
When the tension is not proper, move on to the next
step and adjust the belt tension.
It is recommended to put the SOLENOID
CUSHION(P/N 22265241) on the top of the ST-
001 for easy measuring.
SERVICE MENU
I/S MENU
I/S MENU
I/S CONTROL
I/S CONTROL
CAP
CAP
OPEN
Sub Power SW
<Front side>
4-49
[ ] [ ]
[ ]
[ ]
< Rear side >
Main Power SW
Top Cover
Front Rail Cover
Upper Belt
Hold down the belt
with Tension Gauge
Lower Belt
The center of the 4th
Grit Roller from the
left