Controlling The Configuration Of The Printer - Tally T5023+ Programming Manual

Standard commands

Controlling the configuration of the printer

The status of the printer can be controlled from a program irrespective of the data to
be printed via the following control commands:
Command Function
ESC @ Initializing the printer
ESC < Selecting unidirectional printing for one line
ESC U (n) Unidirectional printing mode on/ off one line
ESC > Setting the 8th bit of incoming data (MSB = 1)
ESC = Deleting the 8th bit of incoming data (MSB = 0)
ESC # Terminating control of the 8th bit (= delete MSB
specification)
DC3 Switching printer off logically (Offline)
DC1 Switching printer on logically (Online)
ESC EM (n) Setting the automatic single sheet feeder mode on/off
On some computers the MSB value (Most Significant Bit) is always constant
i
1. In practice that would mean that in the character table only characters
from the range of 80h to FFh could be addressed and then only italic or gra-
phics characters or characters defined by the user could be printed.
The 8th bit can be deleted using the command ESC =. Therefore, cha-
racters from the basic character table (range from 20h to 7Fh) can also
be printed.
On the other hand, for computers which can only transfer 7- bit data
(MSB value always constant 0), the 8th bit can be set to 1 by ESC >.
Then it is also possible to address italic or graphics characters, or cha-
racters defined by the user.
Controlling the configuration of the printer
T5023/5023+ - Programming Guide
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