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TwinSide TS™ Thermal Printer Family
Shipment: Do not ship your product with a paper roll mounted in the paper roll
holder. The heavy weight of the paper roll can easily bend or otherwise damage the
paper roll holder, as witnessed numerous times.
5.6. Power Supply Specifications
Selection of a power supply for thermal printers depends upon the printer's application, what
percentage of the printout is black, frequency with which printouts are generated, and more.
In particular, thermal printers draw very high currents for very short time periods (usually
under one millisecond). The most important issue is not peak current, but the length of time
that the power supply is able to deliver instantaneous current over its rated maximum, and for
how long the print job prints high black percentages, thereby drawing high current. It is
important that the power supply's over-current system does not shut down the power supply
when these brief, high current surges occur.
Average current consumption depends upon print speed, burn time setting (to achieve darker
printouts) and the percentage of black being printed on the paper. While the voltage, hold up
time and current limitation are the same for different values, the nominal DC average current
varies. Based on tests of various percentages of black printing, we recommend the following
power supply specifications for most 24 VDC applications. These are not absolute values,
but a starting point. We recommend that you test any power supply you plan to use while
printing your actual printout before deploying it. Please note that the 100% value is included
as a reference point only; continuously printing solid black will quickly overheat the printhead
and may damage the printer. Please see the "Technical Specifications" section near the end
of this document for full details on the various voltages available.
Power Supply Specifications
DC Output Voltage: 24 volts ± 5%
Hold Up Time: 20 ms minimum
Current Limitations: 30 amperes minimum current limit
Black Coverage (%)
12.5% (typical text only)
25% (typical text/graphic barcode mix)
50%
75%
100% (solid black)
6.
Operation
6.1. Loading Paper
Make sure that the paper you will use is approved Hengstler paper for use with the TwinSide
TS™ printer. (Please refer to document D 691 024 for detailed specifications.)
The TwinSide TS™ series of thermal printers automatically loads paper when it is inserted.
First, make sure that the UPM is in the "closed" position by pressing on flat metal surface
immediately in front of the UPM Release. (See Fig. 11.) After closing, push the UPM
Release (see Fig. 2) fully forward to ensure the UPM is fully closed. You should hear a faint
click as the UPM microswitch activates, signaling the controller that the UPM is closed. Then
insert the paper into the paper opening in the rear. You will hear the paper feed motor start to
run as soon as the paper detection sensor is reached. Continue to feed the paper until the
platen grasps it and pulls it into the printer.
Part No. D 691 023A
DC Current (average)
2.4 amps
4.1 amps
6.6 amps
8.6 amps
11.0 amps
Mod. No. 4 120912 LEV
HENGSTLER
page 24 of 34
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