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UBI EasyCoder 401 Linerless – Technical Manual
PRINTING PRINCIPLES, cont'd.
Dot Size
The basis for all measures and positioning in the UBI Fingerprint
programming language is the size of printhead dots. For example,
in an 8 dots/mm printhead, each dot has a nominal size of 0.125 mm
(4.9 mils). This means that a heated dot under standardized condi-
tions will produce a black spot which has a diameter of 0.125 mm.
Depending on dot temperature, exposure time, paper characteris-
tics etc., the spot may actually be somewhat smaller (weak print) or
larger (black print), but that does not affect the calculation of
distances, sizes and positions.
The 8 dots/mm (203.2 dpi) printhead contains 832 dots, which gives
a maximum print width of 104 mm (4.095").
The same unit of measure (dots) can be used both across and along
the paper feed direction.
Density:
8 dots/mm (203.2 dpi)
Dot size (mm):
0.125
Dot size (mils):
4.92
Dot size (inches):
0.00492
1 mm:
8 dots
1 inch:
203.2 dots
1/16 inch:
12.7 dots
Conversion Table
