Chapter 4 Other Information
4.1 Command Programming Manual
<T12 printer developing manual> is the technical manual for engineer to
develop printer Application. If need, pls contact with our company.
This manual includes the hardware interface (Serial interface, Bluetooth, USB
interface) technical description, the technical documentation of printing control
command set, and others such as how to print black mark and locate by it.
4.2 Description of Pre-printed Black Mark
If users use pre-printed black mark to locate the receipt, please be sure to
abide by the following black mark pre-print regulation when print the black
mark paper, otherwise, it will cause that the printer can not identify the black
mark.
The black mark pre-print regulations are as below:
Printing Position:
As the picture above, the black mark should be printed on
the right edge of the printed side of paper.
Width range:
width≥7mm
Height range:
4mm≤height≤6mm
Reflectivity of infrared ray:
<10% (infrared ray reflectivity of other parts of the
black mark paper is>65%)
HPS
: it is the distance between edges of black mark and loading position.
4.5mm≤Hps≤6.5mm
Appendix
The appendix is usage method to set printer parameters:
