Pf Timing Belt Tension Measurement - Epson WF-7620 Series Service Manual

Epson WF-7620 / WF-7610 / WF-7110 Series

3.2.1.1 PF Timing Belt Tension Measurement

If you have correctly reassembled the Printer Mechanism, the tension of the PF Timing
Belt falls within the expected range.If the result of measurement of the PF Timing Belt
tension explained in this section is out of standard, readjust the tension as instructed
below.
The standard tension range of the PF Timing Belt: 15 ± 2 N
Measurement procedure
1. Set the following parameters to the sonic tension meter:
Weight:
Width:
Span:
2. Bring the microphone of the sonic tension meter close to the position shown in
3. Press the "MEASURE" button of the sonic tension meter and flip the upper of the PF Timing Belt with
plastic tweezers and measure the tension of the belt.
Within the standard range: go to
Out of the standard range: perform the
4. Rotate the PF Roller Pulley one turn, and measure the tension at the measurement point shown in
Within the standard range: go to
Out of the standard range: perform the
5. Rotate the PF Roller Pulley one turn, and measure the tension at the measurement point shown in
Within the standard range: go to
Out of the standard range: perform the
6. PF Timing Belt tension measurement is complete.
PF Timing Belt Tension Adjustment
1. Loosen the screws (x2) of the PF Motor Plate, and adjust the position referring to
2. Tighten the screws of the PF Motor Plate, and measure the tension again.
3. Repeat Step 1 and 2 until the value falls within the standard.
4. Go back to the previous step in the measurement procedure.
Adjustment
1.09 g/m
3 mm
73 mm
Step 4.
Step 5.
Step 6.
Measurement position
Left side
Within 5 mm
Figure 3-1. PF Timing Belt Tension Measurement / Adjustment
" PF Timing Belt Tension Adjustment
" PF Timing Belt Tension Adjustment
" PF Timing Belt Tension Adjustment
PF Timing Belt
Details of Adjustments
Figure 3-1.
(p62)".
(p62)".
(p62)".
How to adjust PF Belt Tension
Tension: lower
Tension: higher
PF Motor Plate
Adjust the tension as shown above if it is
out of standard.
Figure 3-1.
Revision B
Figure 3-1.
Figure 3-1.
62
Confidential