Ricoh D158 Service Manual page 813

TWO TRAY PAPER FEED UNIT PB2010
1. REPLACEMENT AND ADJUSTMENT ............................................ 1
1.1 COVERS AND ROLLER ................................................................................ 1
1.1.1 COVERS ............................................................................................... 1
Rear Cover ............................................................................................... 1
Right Cover .............................................................................................. 1
1.1.2 FEED ROLLER ..................................................................................... 2
1.2 DRIVE COMPONENTS ................................................................................. 3
1.2.1 UPPER FEED CLUTCH ....................................................................... 3
1.2.2 LOWER FEED CLUTCH ....................................................................... 3
1.2.3 RELAY CLUTCH .................................................................................. 4
1.2.4 PAPER FEED MOTOR ......................................................................... 4
1.2.5 LIFT MOTORS ...................................................................................... 5
Upper Lift Motor........................................................................................ 5
Lower Lift Motor........................................................................................ 5
1.3 ELECTRICAL COMPONENTS ...................................................................... 6
1.3.1 VERTICAL TRANSPORT SENSOR ..................................................... 6
1.3.2 PAPER END SENSOR ......................................................................... 6
1.3.3 PAPER SIZE SENSORS ...................................................................... 7
1.3.4 TRAY MAIN BOARD............................................................................. 8
2. DETAILED SECTION DESCRIPTIONS ........................................... 9
2.1 COMPONENT LAYOUT ................................................................................ 9
2.1.1 MECHANICAL COMPONENT LAYOUT ............................................... 9
2.1.2 ELECTRICAL COMPONENT LAYOUT .............................................. 10
2.1.3 ELECTRICAL COMPONENT DESCRIPTION .................................... 12
2.1.4 DRIVE LAYOUT ................................................................................. 13
2.2 PAPER FEED AND SEPARATION MECHANISM ....................................... 14
2.3 PAPER LIFT MECHANISM.......................................................................... 15
2.4 PAPER END DETECTION........................................................................... 16
2.5 PAPER HEIGHT DETECTION ..................................................................... 17
SM
(D699)
TABLE OF CONTENTS
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