3-7
(2) Excitation Sequence
As shown in
Table 3-4
, the printer feeds paper in the normal direction when the motor is excited
in the order of step 1, step 2, step 3, step 4, step 1, step 2, . . . . Do not feed paper in the
reverse direction.
Table 3-4 Excitation Sequence
Signal Name
Sequence
Step 1
Step 2
Step 3
Step 4
A
Low
High
High
Low
B
High
High
Low
Low
A
High
Low
Low
High
B
Low
Low
High
High
Figure 3-4 Input Voltage Signals for the Sample Drive Circuit
H
L
H
L
H
L
H
L
A
B
A
B
1 DOT LINE
