Encoder Disk - Oki Microline 520 Service Handbook

%Encoder Disk

Encoder Disk
As the space motor operates, the encoder disk spins. When the encoder disk interrupts the photo
sensors, the signals Phase A and Phase B are generated. The LSI (Location 04B: MSM79V035) divides
these edge pulse signals (the frequency division is based on the selected print pitch) to generate the
signal IPT. The IPT signal provides dot-on timing and carriage position detection timing.
ML520/521 ( 96-02-04 )