Confidential
Adjustment Details of Adjustments 62
Epson WF-7620 / WF-7610 / WF-7110 Series Revision B
3.2.1.1 PF Timing Belt Tension Measurement
Measurement procedure
1. Set the following parameters to the sonic tension meter:
Weight: 1.09 g/m
Width: 3 mm
Span: 73 mm
2. Bring the microphone of the sonic tension meter close to the position shown in Figure 3-1.
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 Step 4.
Out of the standard range: perform the " PF Timing Belt Tension Adjustment (p62)".
4. Rotate the PF Roller Pulley one turn, and measure the tension at the measurement point shown in Figure 3-1.
Within the standard range: go to Step 5.
Out of the standard range: perform the " PF Timing Belt Tension Adjustment (p62)".
5. Rotate the PF Roller Pulley one turn, and measure the tension at the measurement point shown in Figure 3-1.
Within the standard range: go to Step 6.
Out of the standard range: perform the " PF Timing Belt Tension Adjustment (p62)".
6. PF Timing Belt tension measurement is complete.
Figure 3-1. PF Timing Belt Tension Measurement / Adjustment
PF Timing Belt Tension Adjustment
1. Loosen the screws (x2) of the PF Motor Plate, and adjust the position referring to Figure 3-1.
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.
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
Within 5 mm
Measurement position
PF Timing Belt
Tension: lower
Tension: higher
PF Motor Plate
How to adjust PF Belt Tension
Adjust the tension as shown above if it is
out of standard.
Left side
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