Oki Microline 390, Руководство по обслуживанию, Страница: 35 / 174

Encoder disk
In the operation of the spacing motor, the PHASE-A and PHASE-B signals are generated. When
the encoder disk interrupts the photo sensor.
The motor control MSM6990) divides these edge pulse signals in accordance with the
print pitch, and sends the IPT signal to provide dot-on and carriage position detection
timing.
P H A S E - A
UTILITY MODE
IPT
12,
IPT
LQMODE
IPT
(10.12, 15,
11360”
3-a