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Oki PACEMARK 4410 - 2.2.2 Spacing operation

Oki PACEMARK 4410
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40496501TH Rev.1 36
(2) Motion of Printhead (Fig.2-14)
The armature usually looses the armature sprint with a permanent magnet, making it to be
attracted by the core. In this time, the print wire integrated with the armature is also in reset
state, When the magnet coil is energized by a print command sent from the device controller,
a magnetic flux will generate in the opposite direction against that of the permanent magnet
and a restoring force of the armature in the opposite direction against the core, and then the
print wire impinge on the platen. There is a paper and ink ribbon between the platen and print
wire, so this impinging motion allows the ink of ink ribbon to be transferred (printed) to the
paper.
(i) When printing
(ii) When not printing
Wire guide
Armature assembly
Thermistor
Coil
Core
Magnet assembly
Spacer
Yoke
Print wire
Wire guide
Platen
Paper
Platen
Paper
Figure 2.21

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