Zebra USB2.0 - miniUSB2.0 P1031365-055 ユーザーズマニュアル
製品コード
P1031365-055
9
QLn Series User Guide
Printing Technology
The QLn320 and QLn220 use the Direct Thermal method to
print human readible text, graphics and barcodes. It incorpo-
rates a sophisticated print engine for optimal printing under all
operational conditions.
rates a sophisticated print engine for optimal printing under all
operational conditions.
Direct Thermal
Direct thermal printing uses heat to cause a chemical reaction on
specially treated media. This reaction creates a dark mark wherever
a heated element on the printhead comes in contact with the media.
Since the printing elements are arranged very densely at 203 d.p.i.
(dots per inch) horizontal and 200 d.p.i. vertical, highly legible char-
acters and graphic elements may be created a row at a time as the
media is advanced past the printhead. This technology has the ad-
vantage of simplicity, as there is no requirement for consumable sup-
plies such as ink or toner. However, since the media is sensitive to
heat, it will gradually loose legibility over long periods of time, espe-
cially if exposed to environments with relatively high temperatures.
a heated element on the printhead comes in contact with the media.
Since the printing elements are arranged very densely at 203 d.p.i.
(dots per inch) horizontal and 200 d.p.i. vertical, highly legible char-
acters and graphic elements may be created a row at a time as the
media is advanced past the printhead. This technology has the ad-
vantage of simplicity, as there is no requirement for consumable sup-
plies such as ink or toner. However, since the media is sensitive to
heat, it will gradually loose legibility over long periods of time, espe-
cially if exposed to environments with relatively high temperatures.