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2.2 Mechanical Operation
2.2.1 Printhead mechanism and operation (See Figure 2-2.)
The printhead is a spring charged 24-pin driving head using a permanent magnet. It is attached
to the carriage, which moves in parallel with the platen. Electrically, this unit is connected to
the control circuits through the control board.
Figure 2-2 Arrangement of the head pins
View from the tip of the printhead
(1) The printhead configuration:
The printhead is composed of the following parts:
(a) Wire guide
(b) Spring assembly (Wire, Armature, Spring, Yoke, Spacer)
(c) Magnet assembly (Magnet, core, coil, Yoke)
(d) Printed circuit board
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