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PAPER FEED UNIT PB3210/PB3220 (D787)

TABLE OF CONTENTS

1. REPLACEMENT AND ADJUSTMENT 1

1.1 REAR COVER 1

1.1.1 PRECAUTIONS CONCERNING STABILIZERS 1

1.1.2 REAR COVER 1

1.2 TRAY LIFT MOTOR (UPPER) 2

1.2.1 TRAY LIFT MOTOR (UPPER) 2

1.3 TRAY LIFT MOTOR (LOWER) 3

1.3.1 TRAY LIFT MOTOR (LOWER) 3

1.4 TRANSPORT MOTOR 4

1.4.1 TRANSPORT MOTOR 4

1.5 PAPER FEED MOTOR 5

1.5.1 PAPER FEED MOTOR 5

1.6 CONTROLLER BOARD 6

1.6.1 CONTROLLER BOARD 6

1.7 TRANSPORT SENSOR, UPPER LIMIT SENSOR, PAPER END SENSOR 7

1.7.1 TRANSPORT SENSOR 7

1.7.2 UPPER LIMIT SENSOR 8

1.7.3 PAPER END SENSOR 8

1.8 2ND PAPER FEED UNIT 9

1.8.1 2ND PAPER FEED UNIT 9

1.9 1ST PAPER FEED UNIT 13

1.9.1 1ST PAPER FEED UNIT 13

1.10 PICK-UP ROLLER, FEED ROLLER, FRICTION ROLLER 15

1.10.1 PICK-UP ROLLER, FEED ROLLER, FRICTION ROLLER 15

2. DETAILED DESCRIPTIONS 17

2.1 PAPER FEED UNIT PB3220 (D787-17)/PB3210 (D787-18, -22) 17

2.1.1 PARTS LAYOUT 17

2.1.2 MECHANISM 19

Paper Feed Separation Mechanism 19

Drive Mechanism 19

Friction Roller/Pick-up Roller Release Mechanism 19

SM i D787

Paper Feed Transport Mechanism 19

Tray Base Plate Lift 21

Paper size detection 23

Remaining paper detection/paper end detection 25

D787 ii SM

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