Ricoh B079 Service Manual page 527

LARGE CAPACITY TRAY B543
1. OVERALL MACHINE INFORMATION.............................................1
1.1 SPECIFICATIONS........................................................................................ 1
1.2 MECHANICAL COMPONENT LAYOUT ...................................................... 2
1.3 ELECTRICAL COMPONENT LAYOUT........................................................ 3
1.4 ELECTRICAL COMPONENT DESCRIPTION.............................................. 4
1.5 DRIVE LAYOUT ........................................................................................... 5
2. DETAILED DESCRIPTIONS ............................................................6
2.1 PAPER FEED MECHANISM ........................................................................ 6
2.2 TRAY LIFT AND PaPER HEIGHT DETECTION MECHANISM ................... 7
Tray lifting conditions ............................................................................... 7
Tray lowering conditions .......................................................................... 7
2.3 TRAY UNIT SLIDE MECHANISM ................................................................ 8
3. SERVICE TABLES...........................................................................9
3.1 DIP SWITCHES............................................................................................ 9
3.2 test points ..................................................................................................... 9
3.3 switches........................................................................................................ 9
3.4 fuses............................................................................................................. 9
4. REPLACEMENT AND ADJUSTMENT ..........................................10
4.1 COVER REPLACEMENT ........................................................................... 10
Tray Cover ............................................................................................. 10
Front Cover............................................................................................ 10
Rear Cover ............................................................................................ 10
Right Lower Cover ................................................................................. 10
Upper Cover .......................................................................................... 10
4.2 ROLLER REPLACEMENT ......................................................................... 11
4.2.1 PAPER FEED, SEPARATION, AND PICK-UP rollerS....................... 11
Pick-up Roller ........................................................................................ 11
Paper Feed Roller.................................................................................. 11
Separation Roller ................................................................................... 11
4.3 TRAY LIFT AND PAPER END SENSOR REPLACEMENT........................ 12
Tray Lift Sensor ..................................................................................... 12
Paper End Sensor ................................................................................. 12
4.4 RELAY SENSOR REPLACEMENT............................................................ 13
4.5 SIDE FENCE POSITION CHANGE............................................................ 14
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CÓPIA NÃO CONTROLADA
TABLE OF CONTENTS
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CÓPIA NÃO CONTROLADA
B543