Ricoh B121, B122, B123 Service Manual

RICOH GROUP COMPANIES

B121/B122/B123

SERVICE MANUAL

December 1st, 2003

Subject to change

PRODUCT CODE

B121 DSM615 LD115 Aficio 2015 4015
B122 DSM618 LD118 Aficio 2018 4018
B123 DSM618D LD118D Aficio 2018D 4018D

LEGEND

GESTETNER LANIER RICOH SAVIN

TABLE OF CONTENTS

1. INSTALLATION........................................................................... 1-1

1.1 INSTALLATION REQUIREMENTS........................................................... 1-1

1.1.1 ENVIRONMENT .............................................................................. 1-1

1.1.2 MACHINE LEVEL ............................................................................ 1-2

1.1.3 MINIMUM SPACE REQUIREMENTS.............................................. 1-3

1.1.4 POWER REQUIREMENTS.............................................................. 1-3

1.2 COPIER INSTALLATION.......................................................................... 1-4

1.2.1 POWER SOCKETS FOR PERIPHERALS....................................... 1-4

1.2.2 ACCESSORY CHECK..................................................................... 1-4

1.2.3 INSTALLATION PROCEDURE........................................................ 1-5

1.3 PLATEN COVER INSTALLATION............................................................ 1-8

1.3.1 ACCESSORY CHECK..................................................................... 1-8

1.3.2 INSTALLATION PROCEDURE........................................................ 1-8

1.4 ARDF INSTALLATION.............................................................................. 1-9

1.4.1 ACCESSORY CHECK..................................................................... 1-9

1.4.2 INSTALLATION PROCEDURE........................................................ 1-9

1.5 ADF INSTALLATION .............................................................................. 1-12

1.5.1 ACCESSORY CHECK................................................................... 1-12

1.5.2 INSTALLATION PROCEDURE...................................................... 1-12

1.6 TWO-TRAY PAPER TRAY UNIT INSTALLATION ................................. 1-15

1.6.1 ACCESSORY CHECK................................................................... 1-15

1.6.2 INSTALLATION PROCEDURE...................................................... 1-15

1.7 ONE-TRAY PAPER TRAY UNIT INSTALLATION.................................. 1-19

1.7.1 ACCESSORY CHECK................................................................... 1-19

1.7.2 INSTALLATION PROCEDURE...................................................... 1-19

1.8 ONE-BIN TRAY INSTALLATION............................................................ 1-22

1.8.1 ACCESSORY CHECK................................................................... 1-22

1.8.2 INSTALLATION PROCEDURE...................................................... 1-22

1.9 ANTI-CONDENSATION HEATER INSTALLATION................................ 1-25

1.10 TRAY HEATERS .................................................................................. 1-26

1.10.1 UPPER TRAY HEATER............................................................... 1-26

1.10.2 LOWER TRAY HEATER (TWO-TRAY MODEL ONLY)............... 1-27

1.10.3 TRAY HEATERS FOR THE OPTIONAL PAPER FEED UNITS .. 1-28

1.11 KEY COUNTER INSTALLATION.......................................................... 1-31

1.12 MFP EXPANSION ................................................................................ 1-33

1.12.1 ACCESSORY CHECK................................................................. 1-34

1.12.2 INSTALLING EXPANSION COMPONENT.................................. 1-35

Step 1–Controller Box ........................................................................ 1-35

Step 2–Printer/Scanner...................................................................... 1-36

Step 3–PostScript .............................................................................. 1-36

Step 4–Fax......................................................................................... 1-37

Step 5–Reassembling........................................................................ 1-37

1.12.3 INSTALLING PANELS AND KEYS.............................................. 1-37

Step 6–Panel...................................................................................... 1-37

Step 7–Printer/Scanner Keys ............................................................. 1-38

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Step 8–Fax Keys................................................................................ 1-38

Step 9–Printer/Scanner and Fax Keys............................................... 1-39

1.12.4 SETTINGS................................................................................... 1-40

Step 10–MFP Settings and Time Settings ......................................... 1-40

Step 11–Fax Settings......................................................................... 1-40

1.13 IEEE1284/IEEE1394 INTERFACE ....................................................... 1-41

1.13.1 ACCESSORY CHECK................................................................. 1-42

1.13.2 INSTALLATION PROCEDURE.................................................... 1-42

UP Mode Settings for Wireless LAN .................................................. 1-44

SP Mode Settings for IEEE 802.11b Wireless LAN............................ 1-45

1.14 BLUETOOTH........................................................................................ 1-46

1.14.1 ACCESSORY CHECK................................................................. 1-46

1.14.2 INSTALLATION PROCEDURE.................................................... 1-46

2. PREVENTIVE MAINTENANCE ................................................... 2-1

2.1 PM TABLES.............................................................................................. 2-1

Optics................................................................................................... 2-1

Drum Area............................................................................................ 2-1

Paper Feed .......................................................................................... 2-1

Fusing Unit........................................................................................... 2-2

ADF/ARDF ........................................................................................... 2-2

Paper Tray Unit.................................................................................... 2-2

2.2 HOW TO RESET THE PM COUNTER..................................................... 2-3

3. REPLACEMENT AND ADJUSTMENT........................................ 3-1

3.1 GENERAL CAUTIONS ............................................................................. 3-1

3.1.1 PCU (PHOTOCONDUCTOR UNIT)................................................. 3-1

3.1.2 TRANSFER ROLLER ...................................................................... 3-1

3.1.3 SCANNER UNIT .............................................................................. 3-1

3.1.4 LASER UNIT.................................................................................... 3-2

3.1.5 FUSING UNIT.................................................................................. 3-2

3.1.6 PAPER FEED .................................................................................. 3-2

3.1.7 IMPORTANT.................................................................................... 3-2

3.2 SPECIAL TOOLS AND LUBRICANTS ..................................................... 3-3

3.3 EXTERIOR COVERS & OPERATION PANEL ......................................... 3-4

3.3.1 REAR COVER ................................................................................. 3-4

3.3.2 REAR LOWER COVER (TWO-TRAY MODELS ONLY).................. 3-4

3.3.3 COPY TRAY .................................................................................... 3-5

3.3.4 UPPER COVERS ............................................................................ 3-5

3.3.5 LEFT COVER .................................................................................. 3-6

3.3.6 FRONT COVER............................................................................... 3-6

3.3.7 FRONT RIGHT COVER................................................................... 3-7

3.3.8 RIGHT REAR COVER..................................................................... 3-7

3.3.9 RIGHT DOOR (B121/B122)/DUPLEX UNIT (B123)......................... 3-8

3.3.10 BY-PASS TRAY............................................................................. 3-9

3.3.11 LEFT LOWER COVER (TWO-TRAY MODELS ONLY) ............... 3-10

3.3.12 RIGHT LOWER COVER (TWO-TRAY MODELS ONLY)............. 3-10

3.3.13 PLATEN COVER SENSOR ......................................................... 3-10

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3.4 SCANNER UNIT..................................................................................... 3-11

3.4.1 EXPOSURE GLASS/DF EXPOSURE GLASS............................... 3-11

Exposure Glass.................................................................................. 3-11

DF Exposure Glass............................................................................ 3-11

3.4.2 LENS BLOCK ................................................................................ 3-12

3.4.3 LAMP STABILIZER BOARD AND EXPOSURE LAMP.................. 3-12

3.4.4 ORIGINAL WIDTH/LENGTH SENSOR ......................................... 3-13

Sensor Positions ................................................................................ 3-13

Sensor Positions for China Model (8K/16K)....................................... 3-14

3.4.5 SCANNER MOTOR ....................................................................... 3-15

3.4.6 SCANNER HOME POSITION SENSOR ....................................... 3-15

3.4.7 ADJUSTING SCANNER POSITIONS............................................ 3-16

Overview ............................................................................................ 3-16

Adjusting the First Scanner Contact Points........................................ 3-17

Adjusting the Second Scanner Contact Points................................... 3-18

3.5 LASER UNIT........................................................................................... 3-19

3.5.1 LOCATION OF CAUTION DECAL................................................. 3-19

3.5.2 TONER SHIELD GLASS................................................................ 3-20

3.5.3 LASER UNIT.................................................................................. 3-20

3.5.4 LD UNIT......................................................................................... 3-21

3.5.5 POLYGONAL MIRROR MOTOR................................................... 3-21

3.5.6 LASER UNIT ALIGNMENT ADJUSTMENT................................... 3-22

3.6 PCU SECTION ....................................................................................... 3-23

3.6.1 PCU ............................................................................................... 3-23

3.6.2 PICK-OFF PAWLS AND TONER DENSITY SENSOR .................. 3-23

3.6.3 OPC DRUM ................................................................................... 3-24

3.6.4 CHARGE ROLLER AND CLEANING BRUSH............................... 3-25

3.6.5 CLEANING BLADE........................................................................ 3-25

3.6.6 DEVELOPER................................................................................. 3-26

3.6.7 AFTER REPLACEMENT OR ADJUSTMENT................................ 3-27

3.7 TONER SUPPLY MOTOR...................................................................... 3-28

3.8 PAPER FEED SECTION ........................................................................ 3-28

3.8.1 PAPER FEED ROLLER................................................................. 3-28

3.8.2 FRICTION PAD.............................................................................. 3-28

3.8.3 PAPER END SENSOR.................................................................. 3-29

3.8.4 EXIT SENSOR............................................................................... 3-29

Non-duplex Models ............................................................................ 3-29

Duplex Models ................................................................................... 3-29

3.8.5 BY-PASS FEED ROLLER AND PAPER END SENSOR ............... 3-30

3.8.6 REGISTRATION ROLLER............................................................. 3-31

3.8.7 BY-PASS PAPER SIZE SWITCH .................................................. 3-32

3.8.8 REGISTRATION CLUTCH............................................................. 3-32

3.8.9 REGISTRATION SENSOR............................................................ 3-33

3.8.10 UPPER PAPER FEED CLUTCH AND BY-PASS FEED CLUTCH3-33

3.8.11 RELAY CLUTCH.......................................................................... 3-34

3.8.12 RELAY SENSOR......................................................................... 3-34

3.8.13 LOWER PAPER FEED CLUTCH (TWO-TRAY MODELS ONLY) 3-34

3.8.14 VERTICAL TRANSPORT SENSOR

(TWO-TRAY MODELS ONLY) .................................................... 3-35

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