
Examples:
01a+0001550000005
Sets the counter to start at 155 and increase by 5 each
time a label is printed.
01a-0012340000002
Sets the counter to start at 1234 and decrease by 2
each time a label is printed.
PRINT BUFFER
A 256 byte transaction buffer is included on the 4200 to allow buffering of data for the
printer port. To enable the print buffer, send the 'B' command. When this is done, any data
that would normally be printed on port 2 will instead be stored in the print buffer. To disable
the buffering of data, send the 'U' command. This will re-enable the printer port and data
will be printed normally. The data in the buffer will remain intact until a 'D' (dump) command
is sent. When this command is sent, all data in the print buffer will be sent to port 1 (duplex
port), and the buffer will be reset (cleared). If the dump command is sent before the 'U'
command, the contents will be sent and the buffer cleared, but the buffer will still be active,
meaning that any future prints will again be buffered.
Note that the number of transactions that can be buffered is dependent upon the Print
Format selected. The more data that is printed, the smaller the transaction buffer
becomes.
LABEL BUFFER
The Model 4200 provides a 240 character Label Buffer that allows you to customize up to
9 label formats. The programming must be done through the duplex port (port 1) and
requires a terminal or computer.
The 240 character label buffer can be divided up into 9 separate buffers for printing 9
different formats. The total 240 characters is divided evenly by the number of buffers that
have been specified in the 'EB' command. For example, if two buffers are to be defined for
two different formats, then 120 characters will be allocated to each buffer. The selection of
which buffer format to use when more than one buffer is defined is done using the PROD
button on the scale. See Section 4 for selecting the "LBL XX" prompt to select the buffer
format to use.
The protocol uses a series of control codes within the format to instruct what the 4200 is to
print at that time in the format. The format can also contain literal characters that can print
prompts and/or text before the actual data is printed.
Section 8 Serial Communications
59