Specifications

DATAPROCESS EUROPE S.p.A.
ST3xx ST4xx ST5xx
– PROGRAMMING MANUAL -
Pag.11
area of the label is maximised whilst taking into consideration the pressure of the
printhead on the rubber roller.
Cases where the auto calibration is advisable:
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Whenever the windows driver is used. Label rolls can be changed easily without hav-
ing to change the settings of the printer.
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When the user is not familiar with the Leptons printer and wants to use it quickly.
9
When label rolls are frequently replaced.
Cases where the auto calibration should be inhibited (see the /$&% command)
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When the label has pictures near to the gap sensor and the picture interferes with the
sensor in such a way that it cannot detect the gap.
In some cases it may be necessary to inhibit the function to automatically align the label
only. To do this it is necessary to put a value different to 0 in the /H0000 command. Refer
to the instructions for the /H command for further explanations. As a suggestion, it is pos-
sible to try by trial and error by setting the parameter as /H0001 and seeing where the la-
bel is printed. If it is not in the correct position, the value of /H0010 can be increased in
steps until the desired positioning is achieved.
When the auto-positioning function should be inhibited:
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When the label is too small for the auto-positioning to function.
9
When the label is to be positioned differently to that which would be achieved with the
auto-positioning.
9
When the typical fluctuations of the auto-positioning are not acceptable.
The auto-positioning of the label function normally uses a couple of labels before it is
correctly aligned and this happens every time a label roll is changed or the printer is
switched on. If this is to be avoided the auto-positioning function can be inhibited with the
/H command.
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10 Connection to External Devices
The printers have been specifically developed to give powerful and flexible connections to
computers for data and for direct I/O connections to industrial equipment.
The ST3XX series has a serial RS232 on the rear panel.
The ST4XX and ST5XX series has an RS232 and a parallel port.
10.1 Serial
Bi-directional connection to a PC. The transmission speed can be programmed up to
38400 baud. The maximum distance is between 10-15m. Longer distances (hundreds of
metres) can be achieved with the Leptons NSA-047/N converter and a twisted telephone
cable.
10.2 Parallel
In this case the connection is only in one direction. It is not possible to know the status of
the printer (end paper, end ribbon) via the PC. The maximum distance is of a few metres –