Toshiba MR-3018, MR-3022

DISASSEMBLY AND ASSEMBLY

4 - 36

Contents

Main Trademarks General Precautions for Installation/Servicing/Maintenance for the MR-3018/3020/3021/3022 Page CONTENTS Page 1. SPECIFICATIONS Page 2. GENERAL DESCRIPTION 2.1 Main Components Drive/Control section Feeding/Transporting section Original tray section Original exit tray section 2.2 Sectional View 2.3 Electric Parts Layout 2.4 Symbols and Functions of Various Components 1) Motors 4) PC board 2) Sensors and Switches 3) Solenoid 2.5 Diagram of Signal Blocks 2.6 Description of Interface Signals RADF Equipment 3. DESCRIPTION OF OPERATIONS 3.1 DRIVE SYSTEM 3.1.1 Outline 3.1.2 Original feed motor drive section Pickup roller 3.1.3 Read motor drive section 3.1.4 Original exit/reverse motor drive section 3.2 Original Size Detection 3.2.1 Outline 3.2.2 Original tray width sensor 3.2.3 Original width detection sensors-1 and -2 / Original length detection sensor A4 series (width sizes mixed at B5-R standard) A4 series (width sizes mixed at A3 / A4 standard) A4 series (width sizes mixed at B4 / B5 standard) A4 series (width sizes mixed at A4-R standard) LT series (ORG-SRS: 0) LT series (width sizes mixed at LD / LT standard) LT series (width sizes mixed at LG / LT-R standard) 3.3 FLOW CHART Page Page Page Page Page Page Page 3.4 DESCRIPTION OF CIRCUIT 3.4.1 Drive Circuit for Feed Motor 3.4.2 Drive Circuit for Read Motor 3.4.3 Drive Circuit for Exit Motor 3.4.4 Drive Circuit for FAN Motor 3.4.5 Reset Circuit 3.4.6 Drive Circuit for Pickup Solenoid Page 4. DISASSEMBLY AND ASSEMBLY 4.1 Cover Page Page Page Page 4.2 Roller Page Page Page Page Page Page Page Page Page Page Page 4.3 Motor / Motor drive section Page Page Page Page Page 4.4 Solenoid Page 4.5 Sensor/switch Page Page Page Page Page Page Page 4.6 PC Board 4.7 Others Page 5. ADJUSTMENT 5.1 Adjustment of Position Page Page Page Page Page 5.2 Adjustment of Height Page 5.3 Adjustment of Skew Page Page 5.4 Adjustment of the Leading Edge Position E F Page Page 5.5 Adjustment of Horizontal Position G H 5.6 Adjustment of Copy Ratio I Page 5.7 Adjustment of RADF Opening/Closing Sensor A Page 6. TROUBLESHOOTING 6.1 Troubleshooting for Mechanical Errors 6.2 Troubleshooting for Electrical Errors 6.3 Jam Page Page Page 7. MAINTENANCE AND REWRITING ROM 7.1 Periodic Maintenance Symbols used in the checklist 7.2 Rewriting ROM (Firmware Updating) 8. CIRCUIT DIAGRAM / HARNESS DIAGRAM 8.1 Assembly of PC Board 8 - 2 8.2 Circuit Diagram 09/05 MR-3018/3020 MR-3021/3022 PWA-F-DLG-L-502 (MR-3021) 8 - 3 Original tray sensor 11/04 Original tray width sensor