DIGIWEIGH DW-PRT24T - Manual (Page 3)

A font is an object in the printer that saves information about a loadable font. The name
of the font is of one Latin letter, CAPS make no difference. The font is identified by this
name when send for from a print text command. If there is no font with such a name, the
print text command will not be executed. The loadable fonts may contain from 1 to 224
characters, which may be not successive.
·
Printer’s memory
The forms, graphics and loadable fonts share the memory of the printer. They are
recorded there as are the files on the disk: they have names – you can delete and export
them from the printer, as well as receive the list of the already loaded objects. The sum of
forms, graphics mad fonts must not exceed 500 KB, though this limit will be higher with
future versions of the printer. The number of objects that the printer can record is 512. If
you reach the number limit or have a full memory, you must delete some of the objects in
order to proceed, or work in Test print mode.
·
Print and Test Print
The standard method of working with the printer is to load a label design in the device,
make it active and pint the label (possibly with new values set for the variables). All the
information needed is already in the printer, except the variables, and what follows is a
print command. This is the only way of operating with digital scales.
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Another method Is possible: If currently there is no active form, the printer will
automatically carry out any commands, and in case of a print command it will print on
the label the result of the received commands. This is used in test printing, which is a
print-out of the onscreen label, without loading it in the printer. This may be useful in
several cases:
·
To print out a paper - preview of the current label design before loading it in the
printer.
·
The label design contains a small piece of information that you will not need later.
· There is no free memory in the printer and you cannot or want not to choose what
to delete.
·
You work with a large number of different labels, which you change often. It is
more convenient to keep them on the disk and load them only in case you need them –
the memory limit will not be a problem.
The main difference between the two methods is that during the test printing what is
transferred through the serial port is all the data contained in the label design; while
during the standard method what is transferred is the new values of the variables. If the
label design has a large picture (graphic), or uses loadable fonts and you work at a lower
communication speed, the transfer may take quite a while. A combined approach is
possible – if we know that the graphic we are using is loaded in the printer, we can order
the program to get the data directly from there, without sending it every time afresh. To