Oki 3321, 3320 specifications Utility Mode

(2)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 LSI divides these edge pulse signals in accordance with the print pitch, and sends the IPT signal to provide dot-on timing and carriage position detection timing.

SPU

SPV

SPW

PHASE-A

PHASE-B

1/720"

• UTILITY MODE

IPT 10 CPI

IPT 12 CPI

IPT 15 CPI

IPT 17 CPI

IPT 20 CPI

1/120"

1/144"

1/180"

1/206"

1/240"

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