Epson DFX-9000 - LF Drive Belt Tension Adjustment

Epson DFX 9000 Revision B
Adjustment Hardware adjustment 222
5.2.2 LF drive belt tension adjustment
Summary
This adjustment is required after you remove or replace these parts:
 LF BELT
 DV ROLLER R UNIT
 DV ROLLER F ASSY
 PJS ROLLER ASSY
 PJS HOLDER ASSY
Tools / materials: Tension Gauge
Objective: 400 ± 20 gf measured tension on the LF BELT.
Adjustment Procedure
1. Loosen the screw that secures the TENSION PULLEY UNIT, and
then lightly tighten the screw to secure the unit temporarily.
2. Push the belt with the Tension Gauge at the location and direction
shown in Figure 5-2, and verify that the tension level is 400 ± 20 gf
when the belt is just touching the tension pulley as shown. If the belt
tension is not correct, adjust the tension following the steps below.
Figure 5-2. LF Drive Belt Tension Adjustment
C H E C K
P O I N T
Before performing this adjustment, remove these parts:
 FRONT COVER ASSY
 REAR UNIT
 OP UNIT
 UPPER UNIT
W A R N I N G
Turn the printer off and disconnect the AC cable before
you perform the following work.
LF Drive Belt
Screw
Adjust direction:
Up to tighten
Down to loosen
TENSION PULLEY UNIT
Point of maximum
belt deflection for
tension
measurement
Tension Gauge
contact point
Tension
pulley