Tally Genicom T5023, T5023+ i

Standard commands Controlling the configuration of the printer

T5023/5023+ - Programming Guide 41

The status of the printer can be cont rolled from a program irrespective o f the data to

be printed via the followingcontrol commands:

Onsome computers the MSB value (Most Significant Bit) is always constant

1. In practice thatwould mean that in the character table only characters

from the rangeof 80h to FFh couldbe addressed and then only italic or gra-

phics characters or charactersdefined 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.

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 # Terminatingcontrol 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