Lsi - Oki ML520 Service Manual
Oki dot matrix printers service guide ml520, ml521
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Also See for ML520:
- Quick start (4 pages) ,
- Specifications (2 pages) ,
- User manual (226 pages)
Table of Contents
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Page: 24
Service Guide ML520/521
Chapter 2 Principles of Operation
LSI
Location 04B: MSM79VO35
Detects the output of the two-phase sensor on the DC space motor to control the motor drive phase.
Transmits and receives serial data to and from the printhead based on the dot timing (which is derived
from the space motor speed).
Controls the external interface. The LSI is connected to the MPU.
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Troubleshooting
