Mita-Kyocera SO30 Service Bulletin

Chapter 3 FUNCTIONAL DESCRIPTION

Contents

Overview 3-2 Multi Bin Paper Eject 3-2 Mail Bin Paper Eject (Reverse Operation) 3-3 Indexer Up/Down Movement 3-4 Circuit Description 3-5 Sensor Connections 3-6 Actuator Connections 3-7 Power 3-8

Overview 3-8 Protection Functions 3-8

3.1 Overview

The Indexer Motor (IM) is a DC brush motor, the Paper Feeding Motor (PFM) is a DC brushless motor, and the Paper Reverse Motor (M3) is a stepping motor. Forward and reverse rotation of these motors is controlled by the microcontroller (CPU) on the Control Board.

The paper feed path contains the Paper Entry Slot Sensor (S1), the Paper Reverse Sensor (S9), and the Paper Eject Sensor (S4), which detect the presence and transport of the paper. If paper does not reach or pass each sensor within a certain time, the Control Board detects a jam, stops operation and notifies the printer that a jam has occurred.

3.2 Multi Bin Paper Eject

When the Control Board receives a Paper Eject signal from the printer, it turns the Paper Feeding Motor (M2) forward, moving the Entry Slot Roller, Vertical Transport Belt and Inde xer Roller. When the Paper Entry Slot Sensor (S1) detects the edge of the paper, the Paper Reverse Motor (M3) turns the Eject Paper Reverse Roller forward. The Paper Entry Slot Sensor (S1) detects the rear edge of the paper, and after the required feeding time, ejects the printed pap er to the Multi Tray.

Paper Eject and Reverse Roller

Reverse Paper Sensor LED

Flapper

Multi Tray Paper Entry Slot Sensor (S1)

Entry Roller

Paper Reverse Sensor (S9) Detector

Mail Trays

Paper Eject Sensor LED

Vertical Transport Belt

Indexer Eject Paper Roller

Paper Eject Sensor Detector (S4)

SO-30

3-2

3.3 Mail Bin Paper Eject (Reverse Operation)

When the Control Board receives an Eject signal from the printer, it turns the Paper Feeding Motor (M2) forward, moving the Entry Roller, Vertical Transport Belt and Ind exer Roller. When the Paper Entry Slot Sensor (S1) detects the edge of the paper, the Paper Reverse Motor (M3) turns the Eject Paper Reverse Roller forward . When the Paper Rev erse Sensor ( S1) detects the rear edge of the paper, the Paper Reverse Motor (M3) stops. The pap er is fe d to the Reverse position, and the Paper Reverse Motor (M3) turns in reverse so the paper feeds to the Vertical Transport Belt. The Vertical Transport Belt carries the paper to the Reverse Roller and the Indexer Eject Paper Roller. The rear edge of the printed paper is detected by the Paper Eject Sensor (S4), and after the required feeding time, it is ejected to one of the Mail Bins.