Epson DFX-9000 Service Manual page 230

Epson DFX 9000
3. Slightly loosen the screw securing the TENSION PULLEY UNIT,
and move it in the direction of the arrows shown in
follows:
Increase the tension: move the unit UP
Decrease the tension: move the unit DOWN
4. Temporarily tighten the screw, and check the belt tension again. If it
is within the specified range (400 ± 20 gf), secure the TENSION
PULLEY UNIT by completely tightening the screw. If not, go back
to Step 3, and re-adjust the tension.
Adjustment
Figure 5-2 as
Hardware adjustment
Revision B
223