Paper Pre-End (Paper Low) Sensor Option; Led Indicators - Hengstler TS-56 Operating Manual

TwinSide TS™ Thermal Printer Family

2.5.2. Paper Pre-End (Paper Low) Sensor Option

When ordered with the Paper Pre-End Sensor option, the TwinSide TS™ will be
shipped with a paper pre-end sensor to be mounted by the customer. The sensor is
a reflex type, meaning that it senses paper by bouncing light off the paper and
detecting its reflection. The sensor is equipped with a 300 mm long cable to allow
flexible mounting by the customer, and the sensor itself is mounted on a small printed
circuit board with a hole to be used for mounting it. Simply mount the sensor where it
will detect paper low (it is often mounted facing the side of the paper roll, so that as
the diameter of the paper roll decreases, it eventually loses the reflection of the light
and changes state), and plug the PPE sensor into the PPE connector on the control
board (see Fig. 5). While the exact distance of the sensor from the paper varies
based on the specific mechanical setup, it is typically 2-5 mm for optimal sensing.
Figure 6 below is the input circuit to the PPE (Paper Pre-End, or Paper Low) input.
The sensor connector adjacent to the PPE sensor, labeled "AUX" in Fig. 5, is for an
Auxiliary Sensor. This sensor can be mounted as desired by the customer. The
status of this sensor will be reported when the TwinSide TS™ status is requested via
the interface.
Figure 6 shows the input circuit for these sensor connectors. (Fig. 6 represents the
circuit for either the PPE or Auxiliary Sensor; these two inputs are wired identically.)
The PPE (Paper Low) Sensor connector is designated CN6, while the Auxiliary
Sensor connector is CN18.

2.5.3. LED Indicators

There are two LED indicators in the TwinSide TS™ series printers, located as shown
in Fig. 5. One LED is red, and the other is green. These LEDs are used to signal
certain status information concerning the TwinSide TS™ printer. The following is a
partial listing of the information supplied. However, for the most complete information
about printer status, we strongly recommend the use of the Hengstler TS-56 tools,
which are supplied as part of the Windows driver package.
There are several flashing speeds used in the TwinSide TS™ printer LEDs. These
are 1 Hz, 2 Hz, 10 Hz, and flickering (F).
Part No. D 691 023A
Signal
33 Ω
Input
180 Ω
+5V
Figure 6
Mod. No. 4 120912 LEV
HENGSTLER
+5V
Pin 1
PPE / Paper
Low Conn.
CN6
Pin 2
or
Auxiliary
Pin 3
Conn. CN18
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