Ricoh B230 Service Manual

							 
SM v B230/B237 
3.10.3 Registration Motor.................................................................... 3-64 
3.10.4 Paper Feed Motor .................................................................... 3-64 
3.10.5 Drum/Development Motor-K .................................................... 3-65 
3.10.6 ITB Drive Motor ........................................................................ 3-66 
3.10.7 Fusing/Paper Exit Motor .......................................................... 3-66 
3.10.8 Image Transfer Belt Contact Motor .......................................... 3-67 
3.10.9 Paper Transfer Contact Motor .................................................. 3-67 
3.10.10 Duplex Inverter Motor ........................................................... 3-68 
3.10.11 Toner Transport Motor .......................................................... 3-68 
3.10.12 Toner Collection Unit............................................................ 3-69 
3.10.13 Paper Feed Clutches............................................................ 3-69 
3.10.14 Drum Motor-MCY ................................................................. 3-70 
3.10.15 Development Motor-MCY ..................................................... 3-71 
3.10.16 Development Clutch-K ......................................................... 3-71 
3.11 Fusing............................................................................................. 3-72 
3.11.1 Fusing Unit ............................................................................... 3-72 
3.11.2 Fusing Belt, Pressure Roller, Fusing Lamps ............................ 3-73 
3.11.3 Heating, Fusing and Tension Roller ......................................... 3-78 
3.11.4 Lubricant Roller and Cleaning Roller ....................................... 3-79 
3.11.5
 Fusing/Paper Exit Fan ............................................................. 3-80 
3.11.6 Heating Roller Thermostats ..................................................... 3-81 
3.11.7 Heating Roller Thermistor........................................................ 3-81 
3.11.8 Pressure Roller Thermistor and Thermostat ............................ 3-82 
3.11.9 Thermopile ...............................................................................3-83 
3.11.10 Fusing Gear and One-way Clutch ........................................ 3-84 
3.11.11 Heating Roller Bearing and Insulating Bushing ........................ 3-85 
3.11.12 Pressure Roller Bearing ....................................................... 3-87 
3.12 Paper Feed ..................................................................................... 3-88 
3.12.1 Paper Feed Unit .......................................................................3-88 
3.12.2 Pick-Up, Feed and Separation Rollers ..................................... 3-88 
3.12.3 Tray Lift Motor .......................................................................... 3-89 
3.12.4 Vertical Transport Sensor, Paper Overflow Sensor and Paper End 
Sensor 3-90 
3.12.5 Registration Sensor................................................................. 3-91 
3.12.6 By-pass Paper Size Detection Switch ...................................... 3-92 
3.12.7 By-pass Paper Feed Unit......................................................... 3-93  
						

							 
B230/B237 vi  SM 
3.13 Duplex Unit ..................................................................................... 3-95 
3.13.1 Duplex Unit .............................................................................. 3-95 
3.13.2 Duplex Transport Motor ........................................................... 3-95 
3.14 Electrical Components.................................................................... 3-97 
3.14.1 Controller Unit ..........................................................................3-97 
3.14.2 Controller Box Cover................................................................ 3-97 
3.14.3 Controller Box .......................................................................... 3-98 
3.14.4 BICU ...................................................................................... 3-100 
3.14.5 IOB......................................................................................... 3-101 
3.14.6 PSU ....................................................................................... 3-101 
3.14.7 SIO (Scanner In/Out) Board................................................... 3-102 
3.14.8 High Voltage Supply Board .................................................... 3-103 
3.14.9 High Voltage Supply Board Bracket ....................................... 3-104 
3.14.10 Controller Board ................................................................. 3-105 
3.14.11 HDD ................................................................................... 3-106 
3.14.12 NVRAM Replacement Procedure....................................... 3-107 
 
TROUBLESHOOTING 
4. Troubleshooting .................................................................... 4-1 
4.1 Process Control Error Conditions ...................................................... 4-1 
4.1.1 Developer Initialization Result ....................................................... 4-1 
4.1.2 Process Control Self-Check Result ............................................... 4-2 
4.1.3 Line Position Adjustment Result .................................................... 4-6 
4.2 Scanner Test Mode ........................................................................... 4-7 
4.2.1 VPU Test Mode.............................................................................. 4-7 
4.2.2 BICU (IPU) Test Mode ................................................................... 4-7 
4.3 Service Call Conditions ..................................................................... 4-9 
4.3.1 Summary ....................................................................................... 4-9 
4.4 SC Table.......................................................................................... 4-13 
4.5 Troubleshooting Guide.................................................................... 4-97 
4.5.1 Image Quality .............................................................................. 4-97 
4.5.2 Line Position Adjustment ........................................................... 4-100 
4.6 Jam Detection ............................................................................... 4-109 
4.6.1 Paper Jam Display ....................................................................4-109 
4.6.2 Jam Codes and Display Codes................................................. 4-109  
						

							 
SM vii B230/B237 
4.7 Electrical Component Defects ....................................................... 4-119 
4.7.1 Sensors ..................................................................................... 4-119 
4.7.2 Blown Fuse Conditions .............................................................. 4-124 
 
SERVICE TABLES 
5. Service Tables ...................................................................... 5-1 
5.1 Service Program Mode ..................................................................... 5-1 
5.1.1 EnTERing and EXITing Service Program Mode ............................ 5-1 
5.1.2 Types of SP Modes ....................................................................... 5-1 
5.1.3 Remarks ........................................................................................ 5-5 
5.2 Copy Service Mode........................................................................... 5-7 
5.2.1 Service Mode Table ....................................................................... 5-7 
5.2.2 Input Check Table ......................................................................5-368 
5.2.3 Output Check Table ...................................................................5-381 
5.2.4 Test Pattern Printing ..................................................................5-393 
5.3 Printer Service Mode.....................................................................5-395 
5.3.1 SP1-XXX (Service Mode) ..........................................................5-395 
5.4 Scanner Service Mode .................................................................. 5-399 
5.4.1 SP1-XXX (System and Others)................................................. 5-399 
5.4.2 SP2-XXX (Scanning-image quality)........................................... 5-399 
5.5 Reboot/System Setting Reset....................................................... 5-401 
5.5.1 Software Reset .......................................................................... 5-401 
5.5.2 System Settings And Copy Setting Reset.................................. 5-401 
5.6 Firmware Update........................................................................... 5-403 
5.6.1
 Type of Firmware ....................................................................... 5-403 
5.6.2 Before You Begin .......................................................................5-404 
5.6.3 Updating Firmware .................................................................... 5-405 
5.6.4 Updating the LCDC for the Operation Panel ............................. 5-407 
5.6.5 Downloading Stamp Data ..........................................................5-408 
5.6.6 NVRAM Data Upload/Download................................................ 5-408 
5.6.7 Address Book Upload/Download............................................... 5-410 
5.6.8 Installing Another Language...................................................... 5-411 
5.6.9 Handling Firmware Update Errors............................................. 5-413 
5.7 SD Card Appli Move...................................................................... 5-416 
5.7.1 Overview................................................................................... 5-416  
						

							 
B230/B237 viii  SM 
5.7.2 Move Exec................................................................................. 5-417 
5.7.3 Undo Exec................................................................................. 5-417 
5.8 Controller Self-Diagnostics............................................................ 5-419 
5.8.1 Overview................................................................................... 5-419 
5.8.2 Detailed self-diagnostics ............................................................5-420 
5.9 Using the Debug Log .................................................................... 5-422 
5.9.1 Switching ON and Setting UP Save Debug Log ........................ 5-422 
5.9.2 Retrieving the Debug Log from the HDD ................................... 5-426 
5.9.3 Recording Errors Manually........................................................ 5-426 
5.9.4 New Debug Log Codes ............................................................. 5-427 
5.10 Dip Switches ................................................................................. 5-429 
5.10.1 Controller Board ..................................................................... 5-429 
5.10.2 BICU Board............................................................................ 5-429 
 
DETAILED DESCRIPTIONS 
6. Detailed Section Descriptions............................................... 6-1 
6.1 Overview ........................................................................................... 6-1 
6.1.1 Component Layout ........................................................................ 6-1 
6.1.2 Paper Path .................................................................................... 6-2 
6.1.3 Drive Layout .................................................................................. 6-3 
6.1.4 Board Structure.............................................................................. 6-4 
6.1.5 Printing Process ............................................................................ 6-6 
6.2 Process Control................................................................................. 6-8 
6.2.1 Overview ....................................................................................... 6-8 
6.2.2 Potential Control ............................................................................ 6-8 
6.2.3 Process Control Self Check Procedure ....................................... 6-10 
6.2.4 Toner Density Adjustment Mode .................................................. 6-12 
6.2.5 Toner Supply Control................................................................... 6-13 
6.2.6 Toner Near End/Toner End Detection .......................................... 6-14 
6.2.7 Developer Initialization................................................................ 6-15 
6.3 Scanning......................................................................................... 6-16 
6.3.1 Overview..................................................................................... 6-16 
6.3.2 Scanner Drive .............................................................................. 6-17 
6.3.3 Original Size Detection ................................................................ 6-18 
6.3.4 Anti-Condensation Heater........................................................... 6-19  
						

							 
SM ix B230/B237 
6.4 Image Processing ...........................................................................6-20 
6.4.1 Overview..................................................................................... 6-20 
6.4.2 SBU (Sensor Board Unit)............................................................ 6-20 
6.4.3 IPU (Image Processing Unit) ....................................................... 6-21 
6.5 Laser Exposure ............................................................................... 6-22 
6.5.1 Overview..................................................................................... 6-22 
6.5.2 Optical Path ................................................................................. 6-23 
6.5.3 Laser Synchronizing Detectors .................................................... 6-24 
6.5.4 LD Safety Switch......................................................................... 6-25 
6.5.5 Automatic Line Position Adjustment ............................................ 6-26 
6.6 PCU (Photo Conductor Unit) ........................................................... 6-31 
6.6.1 Overview..................................................................................... 6-31 
6.6.2 Around the Drum ......................................................................... 6-32 
6.6.3 Development ............................................................................... 6-35 
6.7 Toner Supply ................................................................................... 6-38 
6.7.1 Overview..................................................................................... 6-38 
6.7.2 Toner Supply Mechanism............................................................ 6-39 
6.7.3 Toner Cartridge ............................................................................6-41 
6.8 Waste Toner Collection................................................................... 6-42
 
6.8.1 Toner Collection Path and Drive .................................................. 6-42 
6.8.2 Toner Collection Bottle Set/ Near-Full/ Full Detection .................. 6-44 
6.9 Image Transfer and Paper Separation ............................................ 6-45 
6.9.1 Image Transfer ............................................................................ 6-45 
6.9.2 Paper Transfer and Separation.................................................... 6-51 
6.10 Paper Feed ..................................................................................... 6-54 
6.10.1 Overview.................................................................................. 6-54 
6.10.2 Drive – Tray 1, Tray 2, and By-Pass Tray ................................ 6-55 
6.10.3 Paper Lift – Trays 1 & 2............................................................ 6-56 
6.10.4 Paper Size Detection – Trays 1 & 2 ......................................... 6-57 
6.10.5 Paper Height Detection – Trays 1 & 2 ...................................... 6-58 
6.10.6 Paper End Detection – Trays 1 & 2 .......................................... 6-59 
6.10.7 Registration .............................................................................. 6-60 
6.10.8 Paper Feed Line Speed ........................................................... 6-60 
6.10.9 Tray Lock Mechanism.............................................................. 6-61 
6.10.10 Paper Dust Collection........................................................... 6-62 
6.10.11 By-pass Paper Separation.................................................... 6-62  
						

							 
B230/B237 x  SM 
6.10.12 By-pass Paper Size Detection .............................................. 6-63 
6.11 Fusing............................................................................................. 6-64 
6.11.1 Overview.................................................................................. 6-64 
6.11.2 Fusing Unit Drive..................................................................... 6-65 
6.11.3 Pressure Release Mechanism ................................................. 6-66 
6.11.4 Fusing Temperature Control..................................................... 6-66 
6.11.5 Energy Saver Modes ............................................................... 6-70 
6.11.6 New Unit Detection .................................................................. 6-72 
6.12 Paper Exit ....................................................................................... 6-73 
6.12.1 Overview.................................................................................. 6-73 
6.12.2 Junction Gate Mechanism........................................................ 6-74 
6.13 Duplex Unit ..................................................................................... 6-75 
6.13.1 Overview.................................................................................. 6-75 
6.13.2 Duplex Drive ............................................................................ 6-76 
6.13.3 Inverter Mechanism................................................................. 6-77 
6.13.4 Duplex Operation..................................................................... 6-78 
6.14 Printer Functions .............................................................................6-80 
6.14.1 Overview.................................................................................. 6-80 
6.14.2 Hard Disk ................................................................................. 6-82
 
6.14.3 Controller Functions................................................................. 6-82 
6.14.4 Job Spooling ............................................................................ 6-83 
6.15 PictBridge........................................................................................ 6-86 
6.15.1 General Function .....................................................................6-86 
6.15.2 Printing Function List............................................................... 6-86 
6.15.3 Printing Function Description ................................................... 6-87 
6.16 Copy Data Security Unit .................................................................. 6-94 
6.16.1 General Function .....................................................................6-94 
6.16.2 Mask Type for copying............................................................. 6-95 
6.17 File Format Converter (MLB)........................................................... 6-96 
6.18 Data Overwrite Security Unit (B735) ...............................................6-97 
6.18.1 Auto Erase Memory ................................................................. 6-97 
 
SPECIFICATIONS 
7. Specifications........................................................................ 7-1 
7.1 General Specifications...................................................................... 7-1  
						

							 
SM xi B230/B237 
7.1.1 Main Frame ................................................................................... 7-1 
7.2 Printer ............................................................................................... 7-5 
7.3 Scanner.............................................................................................7-7 
7.4 Supported Paper Sizes ..................................................................... 7-8 
7.4.1 Paper Feed .................................................................................... 7-8 
7.4.2 Paper Exit .................................................................................... 7-10 
7.4.3 Platen/ARDF Original Size Detection .......................................... 7-16 
7.5 Software Accessories...................................................................... 7-18 
7.5.1 Printer Drivers.............................................................................. 7-18 
7.5.2 Scanner and LAN FAX drivers ..................................................... 7-18 
7.5.3 Utility Software............................................................................. 7-19 
7.6 Machine Configuration.................................................................... 7-20 
7.7 Optional Equipment.........................................................................7-24 
7.7.1 ARDF...........................................................................................7-24 
7.7.2 Paper Feed Unit ..........................................................................7-25 
7.7.3 Large Capacity Tray .................................................................... 7-25 
7.7.4 1000-Sheet Booklet Finisher & Punch Unit .................................7-26 
7.7.5 1000-Sheet Finisher ....................................................................7-27 
7.7.6 500-Sheet Finisher ...................................................................... 7-28 
7.7.7
 Bridge Unit ................................................................................... 7-29 
7.7.8 Shift Tray Unit ..............................................................................7-29 
7.7.9 1-bin Tray Unit .............................................................................7-29 
 
BRIDGE UNIT BU3000 B227 
SEE SECTION B227 FOR DETAILED TABLE OF CONTENTS 
FAX OPTION B786 
SEE SECTION B786 FOR DETAILED TABLE OF CONTENTS 
ARDF DF3000 B789 
SEE SECTION B789 FOR DETAILED TABLE OF CONTENTS 
 
  
						

							 
B230/B237 xii  SM 
BIN TRAY B790 
SEE SECTION B790 FOR DETAILED TABLE OF CONTENTS 
INTERNAL SHIFT TRAY B791 
SEE SECTION B791 FOR DETAILED TABLE OF CONTENTS 
FINISHER B792 
SEE SECTION B792 FOR DETAILED TABLE OF CONTENTS 
BOOKLET FINISHER B793 
SEE SECTION B793 FOR DETAILED TABLE OF CONTENTS 
PAPER FEED UNIT B800 
SEE SECTION B759 FOR DETAILED TABLE OF CONTENTS 
LCIT B801 
SEE SECTION B801 FOR DETAILED TABLE OF CONTENTS 
  
						

							 
INSTALLATION 
 ARDF B789 
PAPER FEED UNIT B800 
 FA X  O P T I O N  B 7 8 6  
 
PREVENTIVE MAINTENANCE 
  
  
 
REPLACEMENT AND ADJUSTMENT 
 LCIT B801 
  
 
TROUBLESHOOTING 
 FINISHER B792 
BOOKLET FINISHER B793 
  
 
SERVICE TABLES 
  
  
 
DETAILED DESCRIPTIONS 
  
  
 
SPECIFICATIONS 
 1 BIN TRAY B790 
  
 
 
 BRIDGE UNIT B227 
INTERNAL SHIFT TRAY B791 
  
 
TA B  
POSITION 2 
TA B  
POSITION 1 
TA B  
POSITION 3 
TA B  
POSITION 4 
TA B  
POSITION 6 
TA B  
POSITION 5 
TA B  
POSITION 8 
TA B  
POSITION 7