4.2 Description of Black Mark Pre-print
If user use pre-print 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 or left 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