Epson Stylus Pro 4900/Epson Stylus Pro 4910 Revision A
ADJUSTMENT Media Feed Related Checks and Adjustments 381
Confidential
4.13.9 Cutter Belt Tension Check
REQUIRED TOOLS
Sonic Tension Meter U-507
Any tools to flip the timing belt
STANDARD VALUE
13 to 19.5 N
PROCEDURE
1. Remove the following parts in advance.
Front Cover (P. 142)
Right Upper Cover (P. 138)
Control Panel Cover (P. 136)
Left Cover (P. 137)
Media Eject Cover (P. 148)
Upper Front Cover (P. 134)
2. Confirm that the cutter is at the home position.
3. Input the following values to the tension meter.
MASS: 001.1 g/m
WIDTH: 004.0 mm/R
SPAN: 0620 mm
4. Bring the microphone of the Sonic Tension Meter U-507 closer to the position
shown in Figure 4-90.
5. Press [MEASURE] on the Sonic Tension Meter U-507 and flip the belt with
tweezers or a similar tool.
6. Measure the belt tension for three times, and check if the average is within the
standard value.
Within the standard value: Go to Step 11
Out of the range: Go to Step 7
Figure 4-90. Cutter Belt Tension Check
C A U T I O N
Be sure to measure the tension of the belt on the upper side. If
you measure the tension of the belt on the lower side, the
measuring value may be inaccurate.
Flip the belt as weak as the Sonic Tension Meter U-507 can
measure it.
Be careful not to let the microphone touch the belt when
flipping the belt.
C H E C K
P O I N T
Bring the microphone within 5 mm from the belt but do not let it
touch the belt.
Measuring microphone
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