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B070/B071 SERVICE MANUAL
001580MIU
RICOH GROUP COMPANIES

®

®

RICOH GROUP COMPANIES

B070/B071 SERVICE MANUAL

B070/B071 SERVICE MANUAL

001580MIU

It is the reader's responsibility when discussing the information contained within this document to maintain a level of confidentiality that is in the best interest of Ricoh Corporation and its member companies. NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY FASHION AND DISTRIBUTED WITHOUT THE PRIOR PERMISSION OF RICOH CORPORATION. All product names, domain names or product illustrations, including desktop images, used in this document are trademarks, registered trademarks or the property of their respective companies. They are used throughout this book in an informational or editorial fashion only and for the benefit of such companies. No such use, or the use of any trade name, or web site is intended to convey endorsement or other affiliation with Ricoh products.

© 2003 RICOH Corporation. All rights reserved.

WARNING
The Service Manual contains information regarding service techniques, procedures, processes and spare parts of office equipment distributed by Ricoh Corporation. Users of this manual should be either service trained or certified by successfully completing a Ricoh Technical Training Program. Untrained and uncertified users utilizing information contained in this service manual to repair or modify Ricoh equipment risk personal injury, damage to property or loss of warranty protection.

Ricoh Corporation

LEGEND
PRODUCT CODE B070 B071 GESTETNER 9002 10512 COMPANY LANIER RICOH LD090 Aficio 2090 LD0105 Aficio 2105 SAVIN 4090 40105

DOCUMENTATION HISTORY
REV. NO. * DATE 03/2003 COMMENTS Original Printing

Rev. 06/2003

B070/B071
TABLE OF CONTENTS
INSTALLATION
1. INSTALLATION PROCEDURES ................................................. 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 DIMENSIONS ...................................................................................1-4 Side View..............................................................................................1-4 Top View...............................................................................................1-4 1.1.5 POWER REQUIREMENTS ..............................................................1-5 1.2 COPIER (B070/B071)................................................................................1-6 1.2.1 ACCESSORIES................................................................................1-6 1.2.2 INSTALLATION ................................................................................1-8 External Tape and Retainers ................................................................1-9 Internal Tape and Retainers ...............................................................1-11 Developer ...........................................................................................1-13 Operation Panel and Display ..............................................................1-16 Filters and Original Exit Tray...............................................................1-18 Initializing Developer Supply...............................................................1-20 Replacing the Joint Gear ....................................................................1-21 Completing the Installation..................................................................1-22 1.2.3 CONTROLLER BOX DOOR REMOVAL ........................................1-23 1.2.4 TRANSPORTING THE COPIER ....................................................1-24 Before Moving the Copier ...................................................................1-24 After Moving the Copier ......................................................................1-26 1.3 A3/DLT TRAY KIT (B331) .......................................................................1-27 1.3.1 ACCESSORIES..............................................................................1-27 1.3.2 INSTALLATION ..............................................................................1-28 1.4 LCT (B511) ..............................................................................................1-33 1.4.1 ACCESSORIES..............................................................................1-33 1.4.2 INSTALLATION ..............................................................................1-34 1.4.3 LCT TRAY HEATER (OPTION)......................................................1-38 Installation...........................................................................................1-38 1.5 BYPASS TRAY (B512) ............................................................................1-41 1.5.1 ACCESSORIES..............................................................................1-41 1.5.2 INSTALLATION ..............................................................................1-42 1.6 3000-SHEET FINISHERS (B468/B469) ..................................................1-47 1.6.1 ACCESSORIES..............................................................................1-47 1.6.2 INSTALLATION ..............................................................................1-48 Removing Tapes and Retainers .........................................................1-48 B468/B469 Installation ........................................................................1-50 Selecting the Staple Supply Name .....................................................1-53
SM i B070/B071

Rev. 07/2003

Enabling Booklet Binding ....................................................................1-53 1.7 3000 SHEET FINISHER (B478) ..............................................................1-54 1.7.1 ACCESSORIES..............................................................................1-54 1.7.2 INSTALLATION ..............................................................................1-55 1.8 PUNCH UNIT (B377)...............................................................................1-58 1.8.1 ACCESSORIES..............................................................................1-58 1.8.2 INSTALLATION PROCEDURE ......................................................1-59 1.9 PUNCH UNIT (B531/A812) .....................................................................1-61 1.9.1 ACCESSORIES..............................................................................1-61 1.9.2 INSTALLATION ..............................................................................1-62 1.10 JOGGER UNIT (B513) ..........................................................................1-66 1.10.1 ACCESSORIES............................................................................1-66 1.10.2 INSTALLATION ............................................................................1-67 1.11 COVER INTERPOSER TRAY (B470) ...................................................1-68 1.11.1 ACCESSORIES............................................................................1-68 1.11.2 INSTALLATION ............................................................................1-69 Removing Tapes and Retainers .........................................................1-69 Attaching the Extensions ....................................................................1-70 Attaching the Interposer Tray..............................................................1-71 Attaching the Corner Plates for the B478............................................1-72 Docking the Finisher with the Machine ...............................................1-74 1.12 INSTALLATION OF MFP CONTROLLER OPTIONS ............................1-75 1.12.1 OVERVIEW ..................................................................................1-75 1.12.2 PRINTER/SCANNER KIT (B580) .................................................1-76 Accessories ........................................................................................1-76 Installation...........................................................................................1-77 1.12.3 PS3 (B613) ...................................................................................1-81 Accessories ........................................................................................1-81 Installation...........................................................................................1-81 1.12.4 USB 2.0 (B596) ............................................................................1-82 Accessories ........................................................................................1-82 Installation...........................................................................................1-82 1.12.5 IEEE 1394 KIT (B581) ..................................................................1-83 Accessories ........................................................................................1-83 Installation...........................................................................................1-83 1.12.6 IEEE 802.11B (B582) ...................................................................1-84 Accessories ........................................................................................1-84 Installation...........................................................................................1-84 1.12.7 COPIER CONNECTION KIT (B328).............................................1-86 1.12.8 EFI (G353)....................................................................................1-90 1.12.9 MLB (B609) ..................................................................................1-90 Accessories ........................................................................................1-91 Installation...........................................................................................1-91 1.13 KEY CARD COUNTER .........................................................................1-94 1.13.1 ACCESSORIES............................................................................1-94 1.13.2 INSTALLATION ............................................................................1-95 Assembling the Key Counter ..............................................................1-95 Attaching the Key Counter to the Copier.............................................1-96

B070/B071

ii

SM

Rev. 01/2004

Attaching the Key Counter to the LCT ................................................1-97 User Tool and SP Mode Settings......................................................1-100 1.14 TRAY HEATER KITS ..........................................................................1-101 1.14.1 ACCESSORIES..........................................................................1-101

PREVENTIVE MAINTENANCE
2. PREVENTIVE MAINTENANCE.................................................... 2-1
2.1 PM PARTS ................................................................................................2-1 2.1.1 MAIN MACHINE ...............................................................................2-1 Main Unit PM Parts ...............................................................................2-1 2.1.2 ADF ..................................................................................................2-6 2.1.3 3000 SHEET BOOKLET FINISHER B468........................................2-6 2.1.4 COVER INTERPOSER TRAY B470.................................................2-6 2.1.5 3000-SHEET FINISHER B478 .........................................................2-6 2.1.6 LCT B511, BYPASS TRAY B512 .....................................................2-7 2.1.7 PUNCH UNIT B377, B531, A812 .....................................................2-7 Main Lubrication ...................................................................................2-8

REPLACEMENT AND ADJUSTMENT
3. REPLACEMENT AND ADJUSTMENT ........................................ 3-1
3.1 GENERAL CAUTIONS..............................................................................3-1 3.1.1 DRUM...............................................................................................3-1 3.1.2 DRUM UNIT .....................................................................................3-1 3.1.3 TRANSFER BELT UNIT ...................................................................3-2 3.1.4 SCANNER UNIT...............................................................................3-2 3.1.5 LASER UNIT ....................................................................................3-2 3.1.6 CHARGE CORONA..........................................................................3-3 3.1.7 DEVELOPMENT...............................................................................3-3 3.1.8 CLEANING .......................................................................................3-4 3.1.9 FUSING UNIT...................................................................................3-4 3.1.10 PAPER FEED .................................................................................3-4 3.1.11 USED TONER ................................................................................3-4 3.2 SPECIAL TOOLS AND LUBRICANTS ................................................3-5 3.2.1 SPECIAL TOOLS .............................................................................3-5 3.2.2 LUBRICANTS ...................................................................................3-5 3.3 DOORS AND COVERS.............................................................................3-6 3.3.1 FRONT DOORS ...............................................................................3-6 3.3.2 RIGHT COVERS ..............................................................................3-7 3.3.3 LEFT COVERS.................................................................................3-8 3.3.4 REAR COVERS AND CONTROLLER BOX DOOR .........................3-9 Rear Covers..........................................................................................3-9 Opening the Controller Box...................................................................3-9 3.4 DOCUMENT FEEDER ............................................................................3-10 3.4.1 ADF COVERS ................................................................................3-10 3.4.2 ADF ORIGINAL TRAY....................................................................3-11 Original Tray .......................................................................................3-11 Original Table Cover ...........................................................................3-11
SM iii B070/B071

Bottom Plate .......................................................................................3-11 3.4.3 FEED UNIT AND SEPARATION ROLLER.....................................3-12 3.4.4 FEED BELT ....................................................................................3-13 3.4.5 PICK-UP ROLLER..........................................................................3-14 3.4.6 ADF SENSORS ..............................................................................3-15 Entrance Sensor and Length Sensor ..................................................3-15 Registration Sensor ............................................................................3-16 Width Sensors ....................................................................................3-17 Exit Sensor, Inverter Sensor ...............................................................3-18 3.4.7 TRANSPORT BELT........................................................................3-19 3.4.8 ADF MOTORS................................................................................3-20 Bottom Plate Motor, Pick-up Motor .....................................................3-20 Feed-in, Transport, Feed-out Motors ..................................................3-21 3.4.9 FEED-IN CLUTCH..........................................................................3-22 3.5 SCANNER UNIT......................................................................................3-24 3.5.1 EXPOSURE GLASS.......................................................................3-24 3.5.2 ORIGINAL SIZE SENSORS ...........................................................3-25 3.5.3 EXPOSURE LAMP .........................................................................3-26 3.5.4 LAMP REGULATOR.......................................................................3-27 3.5.5 OPTICS DUST FILTER ..................................................................3-28 3.5.6 SCANNER H.P. SENSOR ..............................................................3-29 3.5.7 SCANNER MOTOR........................................................................3-30 3.5.8 SCANNER DRIVE WIRES .............................................................3-31 Preparation .........................................................................................3-31 Front, Rear Scanner Drive Wires ........................................................3-32 Reinstallation ......................................................................................3-32 3.6 LASER UNIT ...........................................................................................3-34 3.6.1 CAUTION DECALS ........................................................................3-34 3.6.2 LENS BLOCK .................................................................................3-35 3.6.3 LD UNIT..........................................................................................3-36 3.6.4 POLYGON MIRROR MOTOR ........................................................3-38 3.6.5 LASER SYNCHRONIZATION DETECTOR....................................3-39 3.7 DRUM UNIT ............................................................................................3-40 3.7.1 DRUM UNIT ...................................................................................3-40 Drum Removal ....................................................................................3-40 3.7.2 QUENCHING LAMP .......................................................................3-41 3.7.3 GRID PLATE, CHARGE CORONA WIRE, WIRE CLEANER.........3-42 3.7.4 DRUM POTENTIAL SENSOR........................................................3-45 3.7.5 DRUM CLEANING BLADE, ID SENSOR .......................................3-46 3.7.6 CLEANING BRUSH........................................................................3-48 3.7.7 PICK-OFF PAWLS .........................................................................3-49 3.7.8 DRUM FILTER ...............................................................................3-50 3.8 DEVELOPMENT AND TONER SUPPLY ................................................3-51 3.8.1 DEVELOPMENT UNIT REMOVAL.................................................3-51 3.8.2 DEVELOPER REPLACEMENT ......................................................3-53 3.8.3 DOCTOR BLADE CLEANING ........................................................3-55 3.8.4 DEVELOPMENT UNIT FILTERS....................................................3-57 3.8.5 DEVELOPMENT UNIT TONER SUCTION PUMP .........................3-58 3.8.6 DEVELOPMENT UNIT WASTE TONER BOTTLE .........................3-59
B070/B071 iv SM

3.8.7 DEVELOPMENT ENTRANCE, FRONT, AND REAR SIDE SEALS............................................................................................3-60 3.8.8 TONER DENSITY SENSOR ..........................................................3-61 3.8.9 TONER HOPPER ...........................................................................3-62 3.8.10 TONER HOPPER SENSOR.........................................................3-63 3.8.11 DEVELOPMENT MOTOR ............................................................3-64 3.8.12 DEVELOPMENT ROLLER SHAFT CLEANING ...........................3-65 3.9 TRANSFER BELT UNIT ..........................................................................3-66 3.9.1 TRANSFER BELT UNIT REMOVAL...............................................3-66 3.9.2 TRANSFER BELT ..........................................................................3-68 Before Installing or Replacing the Transfer Belt..................................3-69 Installing the Transfer Belt ..................................................................3-69 3.9.3 TRANSFER BELT CLEANING BLADE ..........................................3-70 3.9.4 TRANSFER BELT BIAS BRUSH....................................................3-71 3.10 PAPER FEED........................................................................................3-72 3.10.1 PAPER TRAYS.............................................................................3-72 Tandem Tray ......................................................................................3-72 Universal Tray.....................................................................................3-74 3.10.2 PAPER FEED ROLLERS .............................................................3-75 3.10.3 PAPER FEED AND VERTICAL TRANSPORT CLUTCHES, TRAY LIFT AND PAPER FEED SENSORS .................................3-76 3.10.4 REAR FENCE RETURN SENSOR...............................................3-79 3.10.5 REAR FENCE HP SENSOR ........................................................3-80 3.10.6 1ST TRAY RIGHT PAPER SENSOR ...........................................3-81 3.10.7 BOTTOM PLATE LIFT WIRE .......................................................3-82 3.10.8 PAPER DUST TRAY, REGISTRATION SENSOR CLEANING ....3-84 Paper Dust Tray Cleaning...................................................................3-84 Registration Sensor Cleaning .............................................................3-84 3.10.9 2ND AND 3RD TRAY SIZE SWITCHES ......................................3-85 3.10.10 ST TRAY LIFT MOTOR..............................................................3-86 3.10.11 2ND, 3RD TRAY LIFT MOTORS, LOWER TIMING BELT .........3-87 2nd, 3rd Tray Lift Motors.....................................................................3-87 Lower Timing Belt ...............................................................................3-87 3.10.12 PAPER FEED MOTOR...............................................................3-88 3.10.13 RELAY MOTOR, UPPER RELAY CLUTCH, LCT RELAY CLUTCH.....................................................................................3-89 3.10.14 REGISTRATION MOTOR ..........................................................3-91 3.10.15 DEVELOPMENT FAN MOTORS, COPIER FEED UNIT ............3-92 3.10.16 LCT RELAY SENSOR AND RELAY SENSOR...........................3-94 3.10.17 TANDEM FEED TRAY PAPER SIZE CHANGE .........................3-95 Setting the Paper Size for the Right Tandem Tray .............................3-95 Setting the Paper Size for the Left Tandem Tray................................3-96 3.10.18 TANDEM TRAY SIDE REGISTRATION.....................................3-98 3.11 FUSING UNIT........................................................................................3-99 3.11.1 OIL SUPPLY AND CLEANING WEB UNIT REMOVAL ................3-99 3.11.2 FUSING UNIT THERMOSTATS AND THERMISTOR................3-100 3.11.3 HOT ROLLER UNIT, PRESSURE ROLLER ..............................3-101 3.11.4 HOT ROLLER.............................................................................3-104 3.11.5 WEB ROLLER AND FILTER ......................................................3-107
SM v B070/B071

3.11.6 WEB CLEANING ROLLER.........................................................3-110 3.11.7 HOT ROLLER STRIPPERS .......................................................3-111 3.11.8 PRESSURE ROLLER STRIPPER, FUSING EXIT SENSOR .....3-112 3.11.9 PRESSURE ROLLER CLEANING ROLLER ..............................3-113 3.11.10 FUSING AND EXIT UNIT .........................................................3-114 3.11.11 FUSING PRESSURE ADJUSTMENT ......................................3-115 3.11.12 EXIT SENSOR..........................................................................3-116 3.12 DUPLEX UNIT.....................................................................................3-117 3.12.1 DUPLEX UNIT ............................................................................3-117 3.12.2 DUPLEX UNIT INNER COVER ..................................................3-118 3.12.3 JOGGER MOTOR ......................................................................3-119 3.12.4 DUPLEX TRANSPORT MOTORS..............................................3-120 3.12.5 DUPLEX ENTRANCE SENSOR.................................................3-121 3.12.6 DUPLEX TRANSPORT SENSORS 2, 3.....................................3-122 3.12.7 DUPLEX TRANSPORT SENSOR 1/DUPLEX INVERTER SENSOR ....................................................................................3-123 3.13 TONER BANK .....................................................................................3-124 3.13.1 WASTE TONER BOTTLE ..........................................................3-124 3.13.2 TONER BANK UNIT ...................................................................3-125 After Re-installing the Toner Bank Unit.............................................3-129 3.13.3 TONER SUPPLY PUMP MOTOR, TONER SUPPLY MOTOR SENSOR ....................................................................................3-130 3.13.4 ACCESS TO INSIDE THE TONER BANK..................................3-131 3.14 MAIN BOARDS ...................................................................................3-132 3.14.1 LCDC (LCD CONTROLLER) ......................................................3-132 3.14.2 BCU BOARD ..............................................................................3-133 3.14.3 IOB .............................................................................................3-134 3.14.4 PSU-E (POWER SUPPLY UNIT-ENGINE) ................................3-135 3.14.5 CBG POWER PACK...................................................................3-136 3.14.6 AC DRIVE BOARD .....................................................................3-137 3.15 CONTROLLER BOARDS, HDD ..........................................................3-138 3.15.1 CONTROLLER BOX COVER .....................................................3-138 3.15.2 CONTROLLER BOARD, NVRAM...............................................3-139 3.15.3 INTERFACE BOARD..................................................................3-140 3.15.4 IPU (IMAGE PROCESSING UNIT).............................................3-141 3.15.5 CSS UNIT...................................................................................3-142 3.15.6 MB (MOTHER BOARD)..............................................................3-143 3.15.7 HARD DISKS..............................................................................3-144 3.15.8 PSU-C (POWER SUPPLY UNIT-CONTROLLER)......................3-145 3.16 MOTORS.............................................................................................3-146 3.16.1 FUSING/EXIT MOTOR REPLACEMENT ...................................3-146 3.16.2 DRUM MOTOR...........................................................................3-147 3.17 COPY IMAGE ADJUSTMENT: PRINTING/SCANNING ......................3-148 3.17.1 PRINTING ..................................................................................3-148 Registration ­ Leading Edge.............................................................3-148 Registration ­ Side-to-Side ...............................................................3-149 Magnification Adjustment..................................................................3-150 3.17.2 PARALLELOGRAM IMAGE ADJUSTMENT ..............................3-151 3.17.3 SCANNING.................................................................................3-153
B070/B071 vi SM

Rev. 6/2004

Registration: Platen Mode.................................................................3-153 Magnification.....................................................................................3-153 3.17.4 ADF IMAGE ADJUSTMENT .......................................................3-154 Registration.......................................................................................3-154 3.17.5 ADJUSTING THE LD UNIT CHANNELS....................................3-155 3.18 TOUCH SCREEN CALIBRATION .......................................................3-157 3.19 OPC DRUM CHANGE.........................................................................3-159 3.19.1 SETTING POWDER APPLICATION PROCEDURE...................3-159

TROUBLESHOOTING
4. TROUBLESHOOTING ................................................................. 4-1
4.1 SERVICE CALL CONDITIONS .................................................................4-1 4.1.1 SUMMARY .......................................................................................4-1 4.1.2 SC CODE DESCRIPTIONS .............................................................4-2

SERVICE TABLES
5. SERVICE TABLES....................................................................... 5-1
5.1 SERVICE PROGRAM MODE OPERATION..............................................5-1 To Enter and Exit the SP Mode ............................................................5-1 To Switch to the Copy Window for Test Printing...................................5-1 Using the SP Mode ...............................................................................5-2 SP Mode Button Summary ...................................................................5-3 5.2 SERVICE PROGRAM MODE TABLES .....................................................5-4 5.2.1 COPIER SERVICE PROGRAM MODE TABLES .............................5-4 SP1-nnn Feed.......................................................................................5-4 SP2-nnn Drum ......................................................................................5-9 SP3-nnn Processing ...........................................................................5-23 SP4-nnn Scanner................................................................................5-25 SP5-nnn Mode ....................................................................................5-33 SP6-nnn Peripherals...........................................................................5-52 SP7-nnn Data Logs.............................................................................5-55 5.2.2 PRINTER SERVICE TABLE...........................................................5-67 5.2.3 SCANNER SERVICE TABLE .........................................................5-68 5.3 PRINTING TEST PATTERNS .................................................................5-74 5.3.1 IPU SCANNING TEST PATTERN (SP2-902-001)..........................5-74 5.3.2 IPU PRINTING TEST PATTERN (SP2-902-002) ...........................5-74 5.3.3 PRINTING TEST PATTERN (SP2-902-003) ..................................5-75 5.4 INPUT CHECK ........................................................................................5-76 5.4.1 MAIN MACHINE INPUT CHECK: SP5803 .....................................5-76 5.4.2 ADF INPUT CHECK: SP6007 ........................................................5-84 5.4.3 FINISHER INPUT CHECK: SP6117 (B478 ONLY) .......................5-85 5.5 OUTPUT CHECK ....................................................................................5-87 5.5.1 MAIN MACHINE OUTPUT CHECK: SP5804 .................................5-87 Main Machine Output Check (SP5-804) .............................................5-87 5.5.2 ADF OUTPUT CHECK: SP6008 ....................................................5-89 5.5.3 FINISHER OUTPUT CHECK: SP6118 ...........................................5-90 5.6 SMC LISTS (SYSTEM PARAMETERS AND REPORT DATA) ...............5-91
SM vii B070/B071

Rev. 06/2003

5.7 MEMORY ALL CLEAR: SP5801 .............................................................5-92 5.8 SOFTWARE AND COPY SETTING RESET (UP MODE) .......................5-94 5.8.1 SOFTWARE RESET ......................................................................5-94 5.8.2 RESETTING THE SYSTEM ...........................................................5-94 5.8.3 RESETTING COPY/DOCUMENT SERVER FEATURES ONLY ....5-94 5.8.4 RESETTING SCANNER FEATURES ONLY..................................5-95 5.9 PM COUNTER ........................................................................................5-96 5.9.1 ACCESSING THE PM COUNTERS ...............................................5-96 All PM Parts List .................................................................................5-97 Parts List for PM Yield Indicator..........................................................5-99 Parts Exceeding Target Yield .............................................................5-99 Counter Clear for Parts Exceeding Target Yield ...............................5-100 Clear All PM Settings ........................................................................5-100 Counter List Print Out .......................................................................5-101 CSS Calling Setting (RSS Function) .................................................5-101 5.10 FIRMWARE UPDATE .........................................................................5-102 5.10.1 BEFORE YOU BEGIN... ............................................................5-102 5.10.2 UPDATING FIRMWARE.............................................................5-103 5.10.3 VERIFYING A SUCCESSFUL UPDATE ....................................5-109 5.10.4 UPDATING THE LCDC FOR THE OPERATION PANEL...........5-112 5.10.5 DOWNLOADING STAMP DATA ................................................5-113 5.10.6 NVRAM DATA UPLOAD/DOWNLOAD ......................................5-114 Uploading Content of NVRAM to an SD card ...................................5-114 Downloading an SD Card to NVRAM................................................5-115 5.10.7 INSTALLING ANOTHER LANGUAGE .......................................5-116 5.10.8 HANDLING FIRMWARE UPDATE ERRORS .............................5-119 5.11 USER PROGRAM MODE ...................................................................5-120 5.11.1 ENTERING AND EXITING USER PROGRAM MODE ...............5-120 5.12 BOARD LEDS .....................................................................................5-121 5.13 DIP SW LEDS AND TEST POINT LEDS ............................................5-123 5.13.1 DIP SWITCHES..........................................................................5-123 5.13.2 TEST POINTS ............................................................................5-124 5.14 FUSES ................................................................................................5-125 5.15 VARIABLE RESISTORS .....................................................................5-127 5.16 USING THE DEBUG LOG...................................................................5-128 5.16.1 SWITCHING ON AND SETTING UP SAVE DEBUG LOG .........5-128 5.16.2 RETRIEVING THE DEBUG LOG FROM THE HDD ...................5-131 5.16.3 RECORDING ERRORS MANUALLY .........................................5-131

B070/B071

viii

SM

DETAILED DESCRIPTION
6. DETAILED DESCRIPTION .......................................................... 6-1
6.1 COMPONENT LAYOUT ............................................................................6-1 6.1.1 COPIER ENGINE .............................................................................6-1 6.2 PAPER PATH............................................................................................6-2 6.3 COPY PROCESS......................................................................................6-3 6.4 DRIVE LAYOUT ........................................................................................6-5 6.4.1 COPIER ENGINE .............................................................................6-5 6.5 ELECTRICAL COMPONENT DESCRIPTIONS ........................................6-6 6.5.1 COPIER ENGINE .............................................................................6-6 6.5.2 ADF ................................................................................................6-14 6.6 ADF .........................................................................................................6-15 6.6.1 OVERVIEW ....................................................................................6-15 6.6.2 PICK-UP ROLLER RELEASE ........................................................6-16 6.6.3 BOTTOM PLATE LIFT....................................................................6-17 6.6.4 PICK-UP AND SEPARATION ........................................................6-18 6.6.5 ORIGINAL FEED ............................................................................6-19 6.6.6 ORIGINAL SIZE DETECTION........................................................6-20 Original Length ...................................................................................6-20 Original Width .....................................................................................6-20 Original Width Sensor Location ..........................................................6-20 Detectable Paper Sizes ......................................................................6-20 6.6.7 ORIGINAL TRANSPORT ...............................................................6-21 6.6.8 ORIGINAL SKEW CORRECTION ..................................................6-22 6.6.9 ORIGINAL INVERSION AND FEED-OUT ......................................6-23 General Operation ..............................................................................6-23 Original Inversion ................................................................................6-24 Original Exit (Single-Sided Original Mode)..........................................6-25 Original Exit (Double-Sided Original Mode) ........................................6-26 6.6.10 ADF JAM CONDITIONS...............................................................6-27 Feed-in................................................................................................6-27 Feed-out .............................................................................................6-27 Inversion .............................................................................................6-27 6.7 SCANNING..............................................................................................6-28 6.7.1 OVERVIEW ....................................................................................6-28 6.7.2 SCANNER DRIVE ..........................................................................6-29 Magnification and Reduction...............................................................6-29 6.7.3 ORIGINAL SIZE DETECTION........................................................6-30 6.7.4 AUTO IMAGE DENSITY (ADS) ......................................................6-32 6.8 BOARD STRUCTURE.............................................................................6-33 6.8.1 BLOCK DIAGRAM..........................................................................6-33 6.8.2 COMPONENT DESCRIPTIONS ....................................................6-34 HDD (Hard Disk Drive)........................................................................6-36 6.9 IMAGE PROCESSING ............................................................................6-37 6.9.1 IMAGE PROCESSING STEPS AND RELATED SP MODES.........6-37 6.9.2 IMAGE PROCESSING OVERVIEW ...............................................6-38 6.9.3 IMAGE PROCESSING FLOW........................................................6-39
SM ix B070/B071

6.9.4 IMAGE PROCESSING MODES .....................................................6-40 6.9.5 IMAGE QUALITY SP ADJUSTMENTS...........................................6-41 Custom Settings for Each Mode: Image Quality .................................6-41 Custom Settings for Each Mode: Line Width Correction .....................6-44 Settings Adjustable for Each Original Mode........................................6-46 6.9.6 RELATION BETWEEN THE SP AND UP SETTINGS....................6-47 6.10 LASER EXPOSURE..............................................................................6-49 6.10.1 OVERVIEW ..................................................................................6-49 6.10.2 LASER EXPOSURE MECHANISM ..............................................6-50 6.10.3 LD SAFETY SWITCHES ..............................................................6-51 6.10.4 MULTI-BEAM LINE EXPOSURE..................................................6-52 6.10.5 POLYGON MIRROR MOTOR ......................................................6-53 6.10.6 1200-DPI RESOLUTION ..............................................................6-54 6.10.7 OPTICAL PATH............................................................................6-55 6.11 DRUM UNIT ..........................................................................................6-56 6.11.1 OVERVIEW ..................................................................................6-56 6.11.2 DRUM DRIVE ...............................................................................6-57 6.11.3 DRUM CHARGE...........................................................................6-58 Overview.............................................................................................6-58 Charge Corona Wire Cleaning ............................................................6-59 6.11.4 DRUM CLEANING........................................................................6-60 Overview.............................................................................................6-60 Cleaning Unit Drive .............................................................................6-61 Cleaning Blade Pressure and Side-to-Side Movement .......................6-62 6.11.5 AIR FLOW AROUND THE DRUM ................................................6-63 6.11.6 DRUM PICK-OFF PAWLS............................................................6-64 6.11.7 DRUM QUENCHING ....................................................................6-65 6.11.8 PROCESS CONTROL..................................................................6-66 What Happens at Power On ...............................................................6-66 Drum Potential Sensor Calibration......................................................6-67 Grid Voltage (Vg) Adjustment .............................................................6-68 LD Power Adjustment .........................................................................6-68 ID Sensor Calibration (Vsg) ................................................................6-68 TD Sensor Calibration (Vref)...............................................................6-69 6.12 DEVELOPMENT ...................................................................................6-70 6.12.1 OVERVIEW ..................................................................................6-70 6.12.2 DEVELOPMENT MECHANISM....................................................6-71 6.12.3 DRIVE...........................................................................................6-72 6.12.4 CROSSMIXING ............................................................................6-73 6.12.5 DEVELOPMENT BIAS .................................................................6-74 6.12.6 DEVELOPMENT UNIT TONER SUCTION...................................6-75 6.12.7 TONER HOPPER .........................................................................6-77 Toner Supply ......................................................................................6-77 Toner Hopper Empty Detection ..........................................................6-78 6.12.8 TONER DENSITY CONTROL ......................................................6-79 Overview.............................................................................................6-79 Toner Supply Timing...........................................................................6-79 Sensor Control Mode ..........................................................................6-80 Image Pixel Count Control ..................................................................6-82
B070/B071 x SM

6.13 TONER SUPPLY AND RECYCLING ....................................................6-83 6.13.1 OVERVIEW ..................................................................................6-83 6.13.2 TONER BANK ..............................................................................6-84 Toner Bottle Switching Mechanism.....................................................6-84 Toner Near-end, Toner End, Bottle Replacement...............................6-85 Toner Bottle Sensors ..........................................................................6-87 6.13.3 SUPPLYING TONER TO THE DEVELOPMENT UNIT ................6-88 6.13.4 TONER RECYCLING AND WASTE TONER COLLECTION........6-90 Overview.............................................................................................6-90 Toner Recycling ..................................................................................6-91 Waste Toner Collection.......................................................................6-92 6.14 PAPER FEED........................................................................................6-94 6.14.1 OVERVIEW ..................................................................................6-94 6.14.2 DRIVE...........................................................................................6-95 6.14.3 PAPER LIFT ­ TRAYS 2 & 3........................................................6-96 6.14.4 PICK-UP AND FEED ­ TRAYS 1, 2, 3 .........................................6-98 Overview.............................................................................................6-98 Pick-up and Feed................................................................................6-99 Separation Roller Release ................................................................6-100 6.14.5 REMAINING PAPER/PAPER END DETECTION (TRAY 2, 3) ...6-101 Remaining Paper Detection ..............................................................6-101 End Detection ...................................................................................6-101 6.14.6 PAPER SIZE DETECTION ­ TRAY 2, 3 ....................................6-102 6.14.7 TRAY LOCK ­ TRAY 2, 3...........................................................6-103 6.14.8 TANDEM FEED ­ TRAY 1 .........................................................6-104 Overview...........................................................................................6-104 Connecting the Left and Right Sides of the Tray ..............................6-105 Paper Lift/Remaining Paper Detection: Tray 1..................................6-106 Feed and Lift: Tray 1.........................................................................6-107 Side Fence Drive: Tray 1 ..................................................................6-108 Rear Fence Drive..............................................................................6-109 Tray Positioning ................................................................................6-110 6.14.9 VERTICAL TRANSPORT ...........................................................6-111 6.14.10 LCT GUIDE PLATE ..................................................................6-112 6.14.11 PAPER REGISTRATION..........................................................6-113 Overview...........................................................................................6-113 Registration Drive .............................................................................6-114 Jam Removal at Paper Registration .................................................6-115 6.14.12 JAM DETECTION.....................................................................6-116 6.14.13 ANTI-CONDENSATION HEATERS (OPTIONS) ......................6-120 6.15 IMAGE TRANSFER AND PAPER SEPARATION ...............................6-121 6.15.1 OVERVIEW ................................................................................6-121 6.15.2 IMAGE TRANSFER AND PAPER SEPARATION ......................6-122 6.15.3 TRANSFER BELT UNIT LIFT.....................................................6-124 6.15.4 PAPER TRANSPORTATION AND BELT DRIVE .......................6-125 6.15.5 TRANSFER BELT CLEANING ...................................................6-126 6.15.6 TONER COLLECTION ...............................................................6-127 6.15.7 DRUM ANTI-CONDENSATION HEATER ..................................6-127 6.16 FUSING ...............................................................................................6-128
SM xi B070/B071

6.16.1 OVERVIEW ................................................................................6-128 6.16.2 FUSING ENTRANCE GUIDE .....................................................6-129 6.16.3 FUSING UNIT DRIVE.................................................................6-130 6.16.4 FUSING LAMP AND FUSING TEMPERATURE CONTROL......6-131 Overview...........................................................................................6-131 Warm-up ...........................................................................................6-131 Start of Copying ................................................................................6-132 Temperature Control for Different Paper...........................................6-133 Temperature Control: General Comments........................................6-133 6.16.5 LOW SPEED MODE (CPM DOWN TO 70 PPM) .......................6-135 Speed Reduction ..............................................................................6-135 Process Control ................................................................................6-135 6.16.6 OIL SUPPLY AND CLEANING ...................................................6-137 6.16.7 PAPER COOLING ......................................................................6-140 6.16.8 FUSING PRESSURE .................................................................6-141 6.16.9 HOT ROLLER STRIPPER RELEASE ........................................6-142 6.17 PAPER EXIT/DUPLEX ........................................................................6-143 6.17.1 OVERVIEW ................................................................................6-143 6.17.2 PAPER EXIT MECHANISM........................................................6-144 6.17.3 DUPLEX DRIVE MECHANISM...................................................6-145 6.17.4 INVERTER .................................................................................6-146 Feed-in and Jogging .........................................................................6-146 Feed-out ...........................................................................................6-147 6.17.5 DUPLEX TRAY FEED MECHANISM .........................................6-148 6.17.6 BASIC DUPLEX FEED OPERATION .........................................6-149 Length up to A4/Letter LEF...............................................................6-149 Longer than A4/Letter LEF................................................................6-151 6.18 ENERGY CONSERVATION MODES..................................................6-153 6.18.1 OVERVIEW ................................................................................6-153 6.18.2 ENERGY SAVER MODE............................................................6-154 Entering the energy saver mode.......................................................6-154 What happens in energy saver mode ...............................................6-154 Return to stand-by mode ..................................................................6-154 6.18.3 LOW POWER MODE .................................................................6-155 Entering the low power mode ...........................................................6-155 What happens in low power mode ....................................................6-155 Return to stand-by mode ..................................................................6-155 6.18.4 AUTO OFF MODE......................................................................6-156 Entering auto off mode......................................................................6-156 What happens in auto off mode ........................................................6-156 Returning to stand-by mode..............................................................6-156 Disabling auto off mode ....................................................................6-156 6.18.5 NIGHT MODE.............................................................................6-157 Entering night stand-by and night modes..........................................6-157 What happens in night stand-by and night modes ............................6-157 Returning to stand-by mode..............................................................6-157

B070/B071

xii

SM

Rev. 06/2003

SPECIFICATIONS
SPECIFICATIONS............................................................................. 7-1
1. GENERAL SPECIFICATIONS.....................................................................7-1 1.1 COPIER ENGINE ................................................................................7-1 1.2 ADF .....................................................................................................7-5 1.3 PAPER SIZES BY FEED STATION ....................................................7-6 North America .......................................................................................7-7 Europe/Asia ..........................................................................................7-8 China ....................................................................................................7-9 1.4 A3/DLT TRAY KIT (B331)..................................................................7-10 1.5 LCT (B511) ........................................................................................7-10 1.6 BYPASS TRAY (B512) ......................................................................7-10 1.7 3000 SHEET BOOKLET FINISHER (B468) ......................................7-11 Upper Tray..........................................................................................7-11 Lower Tray..........................................................................................7-11 Proof Tray ...........................................................................................7-11 Staple Specifications...........................................................................7-12 Booklet Staple Specifications..............................................................7-12 1.8 PUNCH UNIT (B377).........................................................................7-13 1.9 3000 SHEET FINISHER (B478) ........................................................7-14 1.10 PUNCH UNIT (B531).......................................................................7-15 1.11 PUNCH UNIT (A812).......................................................................7-16 1.12 JOGGER UNIT B513.......................................................................7-17 1.13 COVER INTERPOSER TRAY B470................................................7-17 1.14 CONNECTION KIT B328.................................................................7-17 2. MACHINE CONFIGURATION ...................................................................7-18

FIRMWARE HISTORY FIRMWARE HISTORY ........................................................ 8-1
1. MAIN MACHINE FIRMWARE MODIFICATION HISTORY....................8-1

A3/DLT TRAY KIT (B331)
SEE SECTION B331 FOR DETAILED TABLE OF CONTENTS

LCT (B511)
SEE SECTION B511 FOR DETAILED TABLE OF CONTENTS

3000-SHEET BOOKLET FINISHER (B468)
SEE SECTION B468 FOR DETAILED TABLE OF CONTENTS

3000-SHEET FINISHER (B478)
SEE SECTION B478 FOR DETAILED TABLE OF CONTENTS
SM xiii B070/B071

Rev. 05/2004

3000-SHEET FINISHER (B706)
SEE SECTION B706 FOR DETAILED TABLE OF CONTENTS

Z-FOLDING UNIT TYPE 2105 (B660)
SEE SECTION B660 FOR DETAILED TABLE OF CONTENTS

COVER INTERPOSER TRAY (B470)
SEE SECTION B470 FOR DETAILED TABLE OF CONTENTS

BYPASS-TRAY (B512)
SEE SECTION B512 FOR DETAILED TABLE OF CONTENTS

MISC. BOARDS (B580/B581/B596/B582/B609)
SEE SECTION B580/B581/B596/B582/B609 FOR DETAILED TABLE OF CONTENTS

B070/B071

xiv

SM

IMPORTANT SAFETY NOTICES
PREVENTION OF PHYSICAL INJURY 1. Before disassembling or assembling parts of the copier and peripherals, make sure that the copier power cord is unplugged. 2. The wall outlet should be near the copier and easily accessible. 3. Note that some components of the copier and the paper tray unit are supplied with electrical voltage even if the main power switch is turned off. 4. If any adjustment or operation check has to be made with exterior covers off or open while the main switch is turned on, keep hands away from electrified or mechanically driven components. 5. If the Start key is pressed before the copier completes the warm-up period (the Start key starts blinking red and green alternatively), keep hands away from the mechanical and the electrical components as the copier starts making copies as soon as the warm-up period is completed. 6. The inside and the metal parts of the fusing unit become extremely hot while the copier is operating. Be careful to avoid touching those components with your bare hands. HEALTH SAFETY CONDITIONS 1. Never operate the copier without the ozone filters installed. 2. Always replace the ozone filters with the specified ones at the specified intervals. 3. Toner and developer are non-toxic, but if you get either of them in your eyes by accident, it may cause temporary eye discomfort. Try to remove with eye drops or flush with cold water as first aid. If unsuccessful, get medical attention. OBSERVANCE OF ELECTRICAL SAFETY STANDARDS 1. The copier and its peripherals must be installed and maintained by a customer service representative who has completed the training course on those models. 2. The NVRAM on the controller board has a lithium battery which can explode if replaced incorrectly. Replace the NVRAM only with an identical type. However, the manufacturer recommends replacing the entire NVRAM, not just the battery. Never recharge or incinerate a used NVRAM battery. Dispose of a used NVRAM or NVRAM battery in accordance with local regulations. 3. The danger of explosion exists if the battery on the controller board is incorrectly replaced. Replace the battery only with the equivalent type recommended by the manufacturer. Discard the used controller board battery in accordance with the manufacturer's instructions and local regulations.

SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL 1. Do not incinerate toner bottles or used toner. Toner dust may ignite suddenly when exposed to an open flame. 2. Dispose of used toner, developer, and organic photoconductors in accordance with local regulations. (These are non-toxic supplies.) 3. Dispose of replaced parts in accordance with local regulations. 4. When keeping used lithium batteries in order to dispose of them later, do not put more than 100 batteries per sealed box. Storing larger numbers or not sealing them apart may lead to chemical reactions and heat build-up.

LASER SAFETY
The Center for Devices and Radiological Health (CDRH) prohibits the repair of laser-based optical units in the field. The optical housing unit can only be repaired in a factory or at a location with the requisite equipment. The laser subsystem is replaceable in the field by a qualified Customer Engineer. The laser chassis is not repairable in the field. Customer engineers are therefore directed to return all chassis and laser subsystems to the factory or service depot when replacement of the optical subsystem is required.

WARNING
Use of controls, or adjustment, or performance of procedures other than those specified in this manual may result in hazardous radiation exposure.

WARNING
WARNING: Turn off the main switch before attempting any of the procedures in the Laser Unit section. Laser beams can seriously damage your eyes. CAUTION MARKING:

Conventions in this Manual This manual uses several symbols.
Symbol ! NA EUR/A What it means Refer to section number See Core Tech Manual for details Screw Connector E-ring Clip ring North America Europe/Asia

LEF (Long Edge Feed)

SEF (Short Edge Feed)
LEFSEF.WMF

Rev. 05/2004

LCT B511 MISC. BOARDS B580/B581/B596/B582/B609 TROUBLESHOOTING
3000-SHEET BOOKLET FINISHER B468 3000-SHEET FINISHER B478 3000-SHEET FINISHER B706 Z-FOLDING UNIT TYPE 2105 (B660)

BYPASS TRAY B512

A3/DLT TRAY KIT B331 COVER INTERPOSER TRAY B470 FIRMWARE HISTORY

TAB POSITION 8

TAB POSITION 7

SPECIFICATIONS

TAB POSITION 6

DETAILED DESCRIPTION

TAB POSITION 5

SERVICE TABLES

TAB POSITION 4

TAB POSITION 3

REPLACEMENT AND ADJUSTMENT

TAB POSITION 2

PREVENTIVE MAINTENANCE

TAB POSITION 1

INSTALLATION

INSTALLATION

INSTALLATION REQUIREMENTS

1.1 INSTALLATION REQUIREMENTS
1.1.1 ENVIRONMENT
1. Temperature Range: 2. Humidity Range:
%Rh 90 80 70 60 50 40 30 20 10 27°C (80.6°F) 80%

10°C to 32°C (50°F to 89.6°F) 15% to 80% RH

Operation Range

32°C (89.6°F) 54%

32°C (89.6°F) 15% 10 20 10°C (50°F) 15% 30 Temperature

B070I900.WMF

3. Ambient Illumination: 4. Ventilation: 5. Ambient Dust:

Less than 1,500 lux (do not expose to direct sunlight or strong light) Room air should turn over at least 3 times per hour Less than 0.075 mg/m3

6. If the place of installation is air-conditioned or heated, do not place the machine where it will be: 1) Subjected to sudden temperature changes 2) Directly exposed to cool air from an air-conditioner 3) Directly exposed to heat from a heater 7. Do not place the machine where it will be exposed to corrosive gases. 8. Do not install the machine at any location over 2,000 m (6,500 feet) above sea level.

SM

1-1

B070/B071

Installation

1. INSTALLATION PROCEDURES

INSTALLATION REQUIREMENTS

9. Place the copier on a strong and level base. 10. Do not place the machine where it may be subjected to strong vibrations. 11. Do not connect the machine to a power source shared with another electrical appliance. 12. The machine can generate an electrical field which could interfere with radio or television reception.

1.1.2 MACHINE LEVEL
1. Front to back: 2. Right to left: Within 5 mm (0.2") of level Within 5 mm (0.2") of level

NOTE: The machine legs may be raised or lowered in order to level the machine. Set a carpenter's level on the exposure glass.

B070/B071

1-2

SM

INSTALLATION REQUIREMENTS

Place the copier near the power source, providing clearance as shown below. The same amount of clearance is necessary when optional equipment is installed. Copier + Finisher + LCT + By-pass Tray
200 mm (8")

400 mm (16")

30 mm (2")

555 mm (22")

B070I410.WMF

Copier + Finisher
200 mm (8")

400 mm (16")

30 mm (2")

555 mm (22")

B070I023.WMF

NOTE: The controller box door on the back of the machine swings open and can be removed. (!1.2.3) Door removal is required only if the machine cannot pass through a narrow door.

SM

1-3

B070/B071

Installation

1.1.3 MINIMUM SPACE REQUIREMENTS

INSTALLATION REQUIREMENTS

1.1.4 DIMENSIONS
Side View
Unit: mm/inch
1476 mm (58") 898 mm (36") 806 mm (32") 1202 mm (48") 90 (3.5") 180 mm (7") 540 mm (22")
B070I411.WMF

1097 mm (43.2")

Top View

980 mm (39")

730 mm (29")

858.5 mm (34")

B070I412.WMF

B070/B071

1-4

SM

INSTALLATION REQUIREMENTS

CAUTION
1. Make sure that the wall outlet is near the main machine and easily accessible. Make sure the plug is firmly inserted in the outlet. 2. Avoid multi-wiring. 3. Be sure to ground the machine. 4. Never set anything on the power cord. Input voltage level: North America: 208 to 240 V, 60 Hz: More than 20 A Europe/Asia: 220 ~240 V, 50/60 Hz: More than 16 A

NEMA 6-20R Note: For USA installations, standard 220V (+/-10%) wall voltage is acceptable.

CAUTION
Never turn off the main power switch when the power LED is lit or flashing. To avoid damaging the hard disk or memory, press the operation power switch to switch the power off, wait for the power LED to go off, and then switch the main power switch off. The Main Power LED () lights or flashes at the following times: · While the platen cover or ADF is open · While the main machine is communicating with the network server · While the machine is accessing the hard disk or memory when reading or writing data. There are two power switches on the machine: · Main Power Switch. Located on the front left corner of the machine and covered by a plastic cover. This switch should always remain on unless the machine is being serviced. · Operation Power Switch. Located on the right side of the operation panel. This is the switch normally used by the customer to power the machine on and off.

SM

1-5

B070/B071

Installation

1.1.5 POWER REQUIREMENTS

COPIER (B070/B071)

1.2 COPIER (B070/B071)
1.2.