Operation
0705
TTPM3 Printer/Encoder–Technical Manual
17
Active position, upper track
Standby position, upper track
Active position,
lower track
Input module
Standby position,
lower track
Write head
Read head
Waste bin ticket exit
Magnetic encoder/decoder
Printer
Front load
ticket entry/exit
Cutter
SW97104A
REAR
FR
O
N
T
Figure 10. Active and standby ticket position
PREVIOUSLY ENCODED TICKETS
One use of the single ticket handling is to process a ticket several times. For example, if
you issue a return train ticket (Stockholm to Oslo and back to Stockholm) you can add
print, and re-encode the magnetic stripe when the first part of the journey is made.
1. Use the applicable decode-command to read the previously encoded ticket
information.
2. The data is transmitted to the host computer, and the ticket is positioned in the active
position of the upper entry, ready for a new encoding and printing.
3. Printing and encoding is affected using the same commands as for processing a ticket
from a fan-fold ticket stock, and the ticket is ejected to the customer.
TIP!
To avoid printing on top of the existing print of a previously used ticket:
•
Include information in the magnetically encoded string, about which area of the ticket
has already been used for printing
•
Read the magnetic stripe and let the host computer position new text on free spaces
of the ticket.
•
Update the magnetic stripe with correct information about used areas if the ticket
should be used further.
3.6.2 Inserting a single ticket
In the standard TTPM3, inserting a single-ticket into the upper rear document entry, will
trigger the single ticket loading process.
In front load printers, the application program must issue the command !L3 to trigger the
single ticket loading. The yellow indicator on the printer will blink to indicate that the
application program wants the operator to insert a single ticket. When a ticket is inserted,
the loading process starts. To speed up ticket handling, the magnetic code of track two is
