Zebra TTPM3 Dokumentacja Strona 105

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104
Specifications
Document Stock
01/06/2009 TTPM3 Installation and Programming Manual P1003642-001
Figure 22 • Stub Perforation to Create a Tear-off Tab,
Perforation for Stub Placed at Trailing End of the Ticket
Tickets with 45° Cut Corners
Some applications are using tickets with cut corners without radius. These tickets are not
within the specifications for use in the TTPM3 printer series. The effect will be that the ticket
detection point moves about 1.3 mm, not only causing incorrect cut but also erroneous
placement of the magnetic code.
The coding starts 1.3 mm too early resulting in synchronization zeroes being lost in the
beginning of the ticket. On units configured for center track, the ticket should be readable in
both directions. If synchronization is lost, the tickets will be readable if inserted one way, but
not the other way around.
A solution to this problem is using HEX code for the magnetic message instead of ISO code.
Thus you can compensate for the lost synchronization zeroes by adding additional
synchronization zeroes in the beginning of the message. However, note that HEX encoded
tickets are normally not readable in standard ISO-card readers.
Figure 23 • Ticket Position is Erroneously Detected with 45° Corners
Min. 85.6 mm
Transport
direction
Ticket viewed from bottom (magnetic stripe side)
6 mm
Perforation not allowed within this 6 mm wide area
Ticket
movement
mm specified radius
mm trigger point movement with cut corners
1.3
3.18
SW97115
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