Belt Tension Adjustment - Epson DLQ-3000 Service Manual

Adjustment
Adjustment Value
Reference Value
Move the carriage so that the top of the head meets the right end of the platen.
Step 10:
Step 11: Rotate the LEVER,PARALLEL,SHAFT so as to set the platen gap to its reference value
at the right. (Refer to Table 4-2)
Adjust the platen gap with the thickness gauge by sliding it along the
Step 12:
Step 13: Move the carriage so that the top of the head meets the left end of the platen again.
Step 14: Insert the thickness gauge between the platen and printhead. Confirm that the platen
gap is at its adjustment value using the thickness gauge. (Refer to Table 42).
If not correct fit in the value, retry from step 7.
Step Remove the printhead.
15:
Step 16: Reattach the HOLDER, RIBBON MASK together with the RIBBON MASK.
Insert the FFC into the printhead, and reattach the printhead to the carriage.
Step 17:

4.3 BELT TENSION ADJUSTMENT

Be sure to adjust the tension before reattaching the MOTOR ASSEMBLY,PF.
Attach the MOTOR ASSEMBLY,PF to the WE ASSEMBLY,RIG~, and fix it
Step 1 :
temporarily with the screw CB(P4)(M3 x 6).
Step 2: Attach the timing belt.
Step 3: Press down the SHAFT,PF,TENSION with the tension gauge at an angle of 45 degrees
until the tension is set to the reference value. Then, tighten the SHAFT,PF,TENSION.
Step 4:
Tighten the screw CB(P4)(M3 x 6).
Tension Gauge Reference Value: 725k25gf
45"
F R A M E , ASSY., RIGHT
4-4
Table 4-2. Platen Gap Adjustment Value
0.37 I 0.02 mm
0.43 * 0.02 mm
S H A F T , P F , T E N S I O N
Tension gauge
I
\
TENSION
Figure 4-5. BELT
LEVER, G, ADJUST position 1
LEVER, G, ADJUST position 2
M O T O R ASSY
/
6)
X
Adjustment
Rev. A