Operating Principles Edge/Edge Blanket
5-10
Photosensors
The photosensors use a high-powered LED
pulse output to detect items. When an item
is present, this beam is reflected back into a
sensitive detector built into the photosensor. A
signal is then sent to the MPC1 board.
There are numerous photosensor located at
various places around the unit (Figure 5-7). The
table on the next page provides information about
each photosensor.
Figure 5-7: Photosensors, proximity sensors, rolls and ribbon location.
PE3A,B,C
PE4A,B,C,D
PE14A
PE14B
PX25
PX9
PE27
PE2A,B,C
PE5A,B,C,D
PE26
PE23
PE22
PX12
PE1
PX24
PX6
PE26
PE15
PE16
PE13
Proximity Sensors
The proximity sensors use a magnetic field to
detect the position of machine components. When
a mechanism is in the proper position, this is
detected by the disturbance of the magnetic field.
A signal is then sent to the MPC1 board.
There are numerous proximity sensors located
at various places around the unit (Figure 5-7).
The table on the next page provides information
about each proximity sensor.
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