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KX-B620 Series
KX-B520 Series
2-4 Stepping Motor Drive Circuit
1) Function
Two stepping motors are used for screen feed and paper feed.
2) Circuit Operation
=
p-ak:
Stepping pulses are output from CPU, causing drivers !C104, 1C105 to go ON.
It makes a 1-step rotation.
Circuit Diagram and Timing Chart are shown below.
+24V
cc
pigeon TS
pst I SS OT
ref ET AD
SE
yeas 0
ae
as
PMA
2
PMB
PMB
Fig. 20 Circuit Diagram and Timing Chart
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