Zebra TTP7030 Specifikace Strana 26

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Installation
Paper Level Sensors
26
P1003636-001 TTP 7020™/TTP 7030™ Technical Manual 02/11/2009
Paper Level Sensors
The printer has inputs for one paper-near-end sensor, and one weekend sensor.
Figure 9 • Sensors on 200 mm Roll Holder
The paper-near-end sensor alerts the system when a couple of meters of paper remain on the
roll. The purpose of this sensor is to get an early alert so that you can replace the paper roll in
time in remotely located kiosks.
The weekend sensor should alert when the remaining paper does not last over a weekend. A
reason to use this sensor is that it is more expensive to get a service technician out on a
weekend or holiday than it is to replace the roll before it is totally empty.
The Zebra 110 mm and 150 mm paper roll holders are equipped with paper-near-end sensors,
while the 200 mm roll holders have both paper-near-end and weekend sensors.
When installing the Zebra roll holder just connect the cable from the roll holder to connector
J1 at the back of the printer. See Figure 1, Printer Exterior, Rear View , on page 11.
If you use custom designed roll holders, connect the sensors according to Figure 10, Paper-
near-end Sensor Connection, on page 27.
SENSOR
+5V
GND
OUT
SENSOR
+5V
GND
OUT
25.7
20-60 mm
Optical weekend sensor.
Adjustment range equals
approximately 30 to 150 m
of paper
Optical paper-near-end
sensor. Activated when a
couple of meters of paper
remain.
SW98052
Lock screw
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