Edge/Edge Blanket Repair
7-35
Tail Photosensor Alignment
The tail photosensors watch as a flatwork
piece is carried onto the discharge ribbons and
turn off when the trailing edge of the flatwork
clears them.
These are retroreflective sensors, which means
their proper operation depends on them being
properly aligned with their reflectors.
If these sensors are out of alignment, the
flatwork will not be stopped be properly spaced
on the discharge conveyor ribbons, slowing
production rates.
Required Tools
3/8” nut driver, thin slotted
screwdriver
Perform only when the unit is OFF
with power connected.
Use extreme caution.
Turn power ON at the main disconnect
switch.
Press the green start button.
Press any of the red safety STOP but
-
tons.
Look at the red and green LEDs on the
tail photosensors (Figure 7-47, A). They
should both be steadily lit.
If they do not, try pressing on the photo
-
sensor bracket to make a minor position-
ing adjustment so that it better “sees: its
reflector (Figure 7-47, B).
Check the sensor LEDs again per Step 4.
Make any further adjustments.
Re-start the unit and test the adjustment by
processing several pieces of flatwork.
1.
2.
3.
4.
5.
6.
7.
Figure 7-47: The tail photosensors/reflectors are
located at the bottom of the machine.
A
B
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