TwinSide TS™
Thermal Printer Family
HENGSTLER
Part No. D 691 023A
Mod. No. 4 120912 LEV
page 17 of 34
®
Green LED
Red LED
Meaning
Normal operations (such as paper loaded, out of paper, printing, cutting, presenting)
Flicker
Flicker
Data upload in progress (fonts, images, firmware, but not
normal data communication)
10 Hz
Off
Out of paper
2 Hz
Off
Motor on/Printing
1 Hz
Off
Ready to print
Operating failures (such as paper jam, cutter jam, presenter jam, printer jam, etc.)
F0F
On
Printhead raised, printer stalled or over-voltage. (Green
LED will flicker, then go off for one second, then flicker
and repeat.)
F1F
On
Paper error. (Green LED will flicker, then go off for
one second, on for one second, off for one second,
then flicker again and repeat.)
F2F
On
Cutter error. (Same pattern as above, but off, on, off,
on, off.)
F3F
On
Presenter error. (Same pattern as above, but off, on, off,
on, off, on, off.)
System failures (These should never occur in normal operation.)
F0F
F0F
Undefined initialization error
F1F
F1F
Board type determination failed during initialization
F2F
F2F
SDRAM failure detected during initialization
Off
On
Unintended processor halt during boot phase
On
On
Unintended processor halt during initialization
Please note that much more detailed information concerning the printer’s current
state can be obtained by requesting the printer’s status via the interface, or via one of
the software tools provided with the Windows driver. Please refer to the TwinSide
TS™ Emulation Command Set Reference D 691 010 for details.
2.5.4. UPM Status Sensor
An additional sensor detects the status of the UPM, and is used to determine whether
the UPM is in the up, or “service” position (do not print) or down (ready to print)
position. Normally, most of the heat generated by thermal printing is transferred to
the paper being printed and is removed from the printer as the paper advances.
When the UPM is in the service position, the printheads are not in contact with the
paper, and no heat is being transferred to the paper. Therefore, most of the heat
remains in the individual dots, allowing them to overheat if activated repeatedly.
Because this may cause permanent damage to the printer, the TwinSide TS™
firmware will prevent printing or paper loading if the head is up.
WARNING! POTENTIAL BURN HAZARD!
It is important to note that the UPM
Status Sensor can be intentionally manually overridden. If this is done, then there is
a possibility that the printheads can heat while the UPM is open. This represents a
burn hazard that should be avoided! Never override the UPM status sensor, and
never touch the thermal printheads directly.
The status of this sensor is also available through the Query function. See the
TwinSide TS™ Emulation Command Set Reference D 691 010 for details on
determining the UPM position and the printhead temperature.
2.5.5. Chute Sensor
The TwinSide TS-56 chute sensor continually monitors whether there is paper in the
chute, and can be read via the Status function. (Please see the TwinSide TS™
Emulation Command Set Reference D 691 010 for details.) This function is often
used in conjunction with the host’s peripherals to signal the user when a printout is
not taken. Examples where this is important include when the information is
