Cybertech PX922E, Руководство по эксплуатации продукта

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SECTION 2
OPERATION
2.1 GENERAL
The Cybertech A922P is a multifunctional, thermal dot matrix
printer. Data enters the controller via an Ethernet port or USB.
This data is then converted to characters or commands. The
characters are then converted to a bit images, stored in the dot
buffer RAM. The contents of this buffer are then serially loaded
into the print head one dot row at a time. When the shifting is
complete. The print head temperature is measured, paper empty and
head position sensors are checked. The dots are then energized for
a time proportional to the print head substrate temperature. After
the dot row is printed a stepper motor advances the paper one dot
row. This completes a print cycle. Printing takes place when a line
overflow occurs or a carriage return is received.
The thermal print head is made up of heat generating resistive
elements placed on a ceramic substrate. Then when an electrical
current is applied to the element, it becomes hot which activates a
thermo-sensitive dye on the paper. Thermal printers are extremely
durable because there are no moving parts in the print head, unlike
the impact dot matrix printers. Making direct thermal one of
simplest operations among available printing techniques.