Tally Genicom MATRIX PRINTER 2250 - Manual (Page 178)

Add entry to the AUTOEXEC.BAT To use the serial interface of your PC, you must add the following mode
commands to the AUTOEXEC.BAT file:
mode com1:9600,n,8,1,p
mode lpt1:= com1:
This mode command is only necessary when data is not to be trans-
mitted directly to COM1 or another serial interface. It only applies to the
default setting of the serial interface of your printer.
Transmission rate: 9600 bauds
Parity: None
Data bits: 8
Stop bits: 1
These settings must be modified to use other values.
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