Star Micronics MP111MP-24G-A - Manual (Page 16)

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(2) Ribbon Shift Operation (Only with 2 color printing on the MP115)
Fig. 3-8 Release action
Release Action
MOTOR
TIMING SIG-1
RIBBON SHIFT
RIBBON SHIFT GEAR
ON
OFF
ON
OFF
ROTATE
STOP
HIGH
LOW
18 Pulses
T30
T1 T2T3
T336
288 Pulses
Ribbon shift gear rotation:
18 x 6 x 32/12 = 288 pulses