Ricoh K-C1 User manual

Model K-C1
(Machine Code: B039/B040/B043)
SERVICE MANUAL
February 20th, 2001
Subject to change

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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...............................................................................1-11
1.5.1 ACCESSORY CHECK....................................................................1-11
1.5.2 INSTALLATION PROCEDURE......................................................1-11
1.6 TWO-TRAY PAPER TRAY UNIT INSTALLATION..................................1-13
1.6.1 ACCESSORY CHECK....................................................................1-13
1.6.2 INSTALLATION PROCEDURE......................................................1-13
1.7 ONE-TRAY PAPER TRAY UNIT INSTALLATION...................................1-16
1.7.1 ACCESSORY CHECK....................................................................1-16
1.7.2 INSTALLATION PROCEDURE......................................................1-16
1.8 IMB INSTALLATION................................................................................1-19
1.8.1 ACCESSORY CHECK....................................................................1-19
1.8.2 INSTALLATION PROCEDURE......................................................1-19
1.9 DRAM INSTALLATION ...........................................................................1-20
1.10 ANTI-CONDENSATION HEATER INSTALLATION ..............................1-21
1.11 TRAY HEATERS...................................................................................1-22
1.11.1 UPPER TRAY HEATER...............................................................1-22
1.11.2 LOWER TRAY HEATER (TWO-TRAY MODEL ONLY)................1-23
1.11.3 TRAY HEATERS FOR THE OPTIONAL PAPER FEED UNITS...1-24
1.12 KEY COUNTER INSTALLATION..........................................................1-27
2 PREVENTIVE MAINTENANCE SCHEDULES............................. 2-1
2.1 PM TABLES ..............................................................................................2-1
2.2 HOW TO CLEAR 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

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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......................................................3-2
3.3 EXTERIOR COVERS & OPERATION PANEL..........................................3-3
3.3.1 REAR COVER..................................................................................3-3
3.3.2 REAR LOWER COVER (TWO-TRAY MODELS ONLY)...................3-3
3.3.3 COPY TRAY.....................................................................................3-4
3.3.4 LEFT UPPER COVER......................................................................3-4
3.3.5 FRONT UPPER LEFT COVER AND OPERATION PANEL.............3-4
3.3.6 RIGHT UPPER COVER ...................................................................3-4
3.3.7 TOP REAR COVER..........................................................................3-4
3.3.8 LEFT COVER...................................................................................3-5
3.3.9 FRONT LONG COVER ....................................................................3-5
3.3.10 FRONT RIGHT COVER .................................................................3-6
3.3.11 RIGHT REAR COVER....................................................................3-6
3.3.12 RIGHT DOOR.................................................................................3-7
3.3.13 BY-PASS TRAY..............................................................................3-8
3.3.14 LEFT LOWER COVER (TWO-TRAY MODELS ONLY)..................3-9
3.3.15 RIGHT LOWER COVER (TWO-TRAY MODELS ONLY) ...............3-9
3.3.16 PLATEN COVER SENSOR............................................................3-9
3.4 SCANNER SECTION..............................................................................3-10
3.4.1 EXPOSURE GLASS/DF EXPOSURE GLASS...............................3-10
Exposure Glass ..................................................................................3-10
DF Exposure Glass.............................................................................3-10
3.4.2 LENS BLOCK.................................................................................3-11
3.4.3 EXPOSURE LAMP, LAMP STABILIZER BOARD..........................3-11
3.4.4 ORIGINAL WIDTH SENSOR..........................................................3-12
3.4.5 ORIGINAL LENGTH SENSOR.......................................................3-12
Sensor Positions.................................................................................3-12
3.4.6 CHANGING THE ORIGINAL SENSOR POSITIONS (8K/16K) ......3-13
Procedure...........................................................................................3-14
3.4.7 SCANNER MOTOR........................................................................3-15
3.4.8 SCANNER H.P. SENSOR..............................................................3-15
3.4.9 ADJUSTMENT OF 2ND SCANNER POSITION.............................3-16
3.4.10 ADJUSTMENT OF 1ST AND 2ND SCANNER ALIGNMENT.......3-17
3.5 LASER UNIT ...........................................................................................3-18
3.5.1 LOCATION OF “CAUTION” DECAL...............................................3-18
3.5.2 TONER SHIELD GLASS................................................................3-19
3.5.3 LASER UNIT ..................................................................................3-19
3.5.4 LD UNIT..........................................................................................3-20
3.5.5 POLYGONAL MIRROR MOTOR....................................................3-20
3.5.6 LASER UNIT ALIGNMENT ADJUSTMENT....................................3-21
3.6 PCU SECTION........................................................................................3-22
3.6.1 PCU................................................................................................3-22
3.6.2 PICK-OFF PAWLS .........................................................................3-22
3.6.3 TONER DENSITY SENSOR ..........................................................3-22
3.6.4 OPC DRUM....................................................................................3-23

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3.6.5 CHARGE ROLLER AND CLEANING BRUSH................................3-24
3.6.6 CLEANING BLADE.........................................................................3-24
3.6.7 DEVELOPER..................................................................................3-25
3.6.8 AFTER REPLACEMENT OR ADJUSTMENT.................................3-26
3.7 TONER SUPPLY MOTOR ......................................................................3-27
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...................................................................3-28
3.8.4 EXIT SENSOR ...............................................................................3-29
Non-duplex Models.............................................................................3-29
Duplex Models....................................................................................3-29
3.8.5 BY-PASS FEED ROLLER AND
BY-PASS PAPER END SENSOR..................................................3-30
3.8.6 REGISTRATION ROLLER .............................................................3-31
3.8.7 BY-PASS PAPER SIZE SENSOR..................................................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 CLUTCH............................................................3-33
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
3.8.15 PAPER SIZE SWITCH .................................................................3-35
3.9 IMAGE TRANSFER.................................................................................3-36
3.9.1 IMAGE TRANSFER ROLLER ........................................................3-36
3.9.2 IMAGE DENSITY SENSOR ...........................................................3-36
3.10 FUSING.................................................................................................3-37
3.10.1 FUSING UNIT...............................................................................3-37
3.10.2 THERMISTOR..............................................................................3-37
3.10.3 FUSING LAMP.............................................................................3-38
3.10.4 HOT ROLLER...............................................................................3-38
3.10.5 THERMOFUSE AND THERMOSTAT ..........................................3-39
3.10.6 HOT ROLLER STRIPPER PAWLS ..............................................3-39
3.10.7 PRESSURE ROLLER AND BUSHINGS ......................................3-40
3.10.8 NIP BAND WIDTH ADJUSTMENT...............................................3-41
3.11 DUPLEX UNIT (DUPLEX MODELS ONLY) ..........................................3-42
3.11.1 DUPLEX EXIT SENSOR..............................................................3-42
3.11.2 DUPLEX ENTRANCE SENSOR ..................................................3-42
3.11.3 DUPLEX INVERTER SENSOR....................................................3-42
3.11.4 DUPLEX TRANSPORT MOTOR..................................................3-43
3.11.5 DUPLEX INVERTER MOTOR......................................................3-43
3.11.6 DUPLEX CONTROL BOARD.......................................................3-43
3.12 OTHER REPLACEMENTS....................................................................3-44
3.12.1 QUENCHING LAMP.....................................................................3-44
3.12.2 HIGH-VOLTAGE POWER SUPPLY BOARD...............................3-44

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3.12.3 IMB (MEMORY BOARD)..............................................................3-45
3.12.4 BICU (BASE-ENGINE IMAGE CONTROL UNIT).........................3-45
3.12.5 IOB (I/O BOARD)..........................................................................3-46
3.12.6 MAIN MOTOR ..............................................................................3-46
3.12.7 REAR EXHAUST FAN..................................................................3-46
3.12.8 LEFT EXHAUST FAN...................................................................3-47
3.12.9 PSU (POWER SUPPLY UNIT).....................................................3-47
3.12.10 GEARBOX..................................................................................3-48
Replacement Procedure.....................................................................3-48
Gear Arrangement Within the Gearbox...............................................3-49
3.13 COPY ADJUSTMENTS: PRINTING/SCANNING..................................3-50
3.13.1 PRINTING ....................................................................................3-50
Registration - Leading Edge/Side-to-Side...........................................3-50
Blank Margin.......................................................................................3-51
Main Scan Magnification.....................................................................3-51
3.13.2 SCANNING...................................................................................3-52
Registration: Platen Mode...................................................................3-52
Magnification.......................................................................................3-53
Standard White Density Adjustment...................................................3-54
3.13.3 ADF IMAGE ADJUSTMENT.........................................................3-55
Registration and Blank Margin............................................................3-55
Sub-scan Magnification.......................................................................3-55
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
4.2 ELECTRICAL COMPONENT DEFECTS ..................................................4-8
4.2.1 SENSORS........................................................................................4-8
4.2.2 SWITCHES.......................................................................................4-9
4.3 BLOWN FUSE CONDITIONS .................................................................4-10
4.4 LED DISPLAY .........................................................................................4-10
4.4.1 BICU...............................................................................................4-10
4.4.2 IOB .................................................................................................4-10
5 SERVICE TABLES....................................................................... 5-1
5.1 USING SERVICE PROGRAM MODES.....................................................5-1
Accessing SP Modes............................................................................5-1
Accessing Copy Mode from within an SP Mode...................................5-1
How to Select a Program Number........................................................5-2
To Input a Value or Setting for an SP Mode .........................................5-2
5.1.1 SP MODE TABLES ..........................................................................5-3
SP1-XXX (Feed)...................................................................................5-3
SP2-XXX (Drum)...................................................................................5-6
SP4-XXX (Scanner)............................................................................5-11
SP5-XXX (Mode) ................................................................................5-17
SP6-XXX (Peripherals).......................................................................5-24
SP7-XXX (Data Log)...........................................................................5-26
5.1.2 TEST PATTERN PRINTING (SP5-902) .........................................5-31

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5.1.3 INPUT CHECK (SP5-803)..............................................................5-32
5.1.4 OUTPUT CHECK (SP5-804)..........................................................5-36
Output Check Table............................................................................5-36
5.1.5 COPY JAM HISTORY (SP7-903)...................................................5-37
5.1.6 SMC PRINTING (SP5-992)............................................................5-38
5.1.7 ORIGINAL JAM HISTORY DISPLAY (SP7-905)............................5-38
5.1.8 MEMORY ALL CLEAR (SP5-801)..................................................5-39
Using a Flash Memory Card...............................................................5-39
Without Using a Flash Memory Card..................................................5-40
5.1.9 PROGRAM UPLOAD/DOWNLOAD ...............................................5-41
Program Download (SP5-827)............................................................5-41
Program Upload (SP5-826) ................................................................5-42
5.1.10 NVRAM DATA UPLOAD/DOWNLOAD ........................................5-43
NVRAM Data Download (SP5-825)....................................................5-43
NVRAM Data Upload (SP5-824).........................................................5-44
5.1.11 APS AND PLATEN/ADF COVER SENSOR
OUTPUT DISPLAY (SP4-301) .....................................................5-45
5.1.12 ADF APS SENSOR OUTPUT DISPLAY (SP6-901).....................5-46
5.1.13 SERIAL NUMBER INPUT (SP5-811) ...........................................5-47
5.1.14 ID SENSOR ERROR ANALYSIS (SP2-221)................................5-48
5.2 USER TOOLS .........................................................................................5-49
5.2.1 HOW TO ENTER AND EXIT USER TOOLS..................................5-49
5.2.2 USER TOOLS TABLE....................................................................5-49
System Setting Table..........................................................................5-49
Copy Features Table ..........................................................................5-50
6 DETAILED SECTION DESCRIPTIONS ....................................... 6-1
6.1 OVERVIEW...............................................................................................6-1
6.1.1 COMPONENT LAYOUT...................................................................6-1
6.1.2 PAPER PATH...................................................................................6-3
6.1.3 DRIVE LAYOUT ...............................................................................6-4
6.2 BOARD STRUCTURE...............................................................................6-5
6.2.1 BLOCK DIAGRAM............................................................................6-5
1. BiCU (Base Engine and Image Control Unit)....................................6-6
2. IOB (I/O Board).................................................................................6-6
3. SBU (Sensor Board Unit)..................................................................6-6
4. IMB (IMAC and Memory Board)........................................................6-6
6.3 COPY PROCESS OVERVIEW .................................................................6-7
6.4 SCANNING................................................................................................6-9
6.4.1 OVERVIEW ......................................................................................6-9
Lamp Stabilizer Fuse............................................................................6-9
6.4.2 SCANNER DRIVE..........................................................................6-10
6.4.3 ORIGINAL SIZE DETECTION IN PLATEN MODE.........................6-11
6.5 IMAGE PROCESSING............................................................................6-13
6.5.1 OVERVIEW ....................................................................................6-13
6.5.2 SBU (SENSOR BOARD UNIT).......................................................6-14
6.5.3 AUTO IMAGE DENSITY (ADS)......................................................6-15
In the SBU ..........................................................................................6-15
In the IPU............................................................................................6-15

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By Original Type .................................................................................6-15
6.5.4 IPU (IMAGE PROCESSING UNIT).................................................6-16
Overview.............................................................................................6-16
Image Processing Modes ...................................................................6-17
Image Processing Path.......................................................................6-18
Original Modes....................................................................................6-19
SP Modes for Each Image Processing Step.......................................6-19
Auto Shading......................................................................................6-21
White Line Erase ................................................................................6-22
Black Line Erase.................................................................................6-22
Scanner Gamma (γ) Correction ..........................................................6-23
Main Scan Magnification.....................................................................6-24
Mirroring for ADF Mode ......................................................................6-24
Filtering...............................................................................................6-25
ID Gamma (γ) Correction....................................................................6-26
Gradation Processing .........................................................................6-27
6.5.5 IMB (MEMORY CONTROLLER AND DRAM) ................................6-28
6.5.6 VIDEO CONTROL UNIT (VCU)......................................................6-29
Fine Character and Image (FCI).........................................................6-29
Printer Gamma Correction..................................................................6-29
6.6 LASER EXPOSURE................................................................................6-30
6.6.1 OVERVIEW ....................................................................................6-30
6.6.2 AUTO POWER CONTROL (APC)..................................................6-31
6.6.3 LD SAFETY SWITCH.....................................................................6-32
6.7 PHOTOCONDUCTOR UNIT (PCU)........................................................6-33
6.7.1 OVERVIEW ....................................................................................6-33
6.7.2 DRIVE.............................................................................................6-34
6.8 DRUM CHARGE .....................................................................................6-35
6.8.1 OVERVIEW ....................................................................................6-35
6.8.2 CHARGE ROLLER VOLTAGE CORRECTION..............................6-36
Correction for Environmental Conditions ............................................6-36
6.8.3 ID SENSOR PATTERN PRODUCTION TIMING............................6-37
6.8.4 DRUM CHARGE ROLLER CLEANING..........................................6-38
6.9 DEVELOPMENT .....................................................................................6-39
6.9.1 OVERVIEW ....................................................................................6-39
6.9.2 DRIVE.............................................................................................6-40
6.9.3 DEVELOPER MIXING....................................................................6-40
6.9.4 DEVELOPMENT BIAS ...................................................................6-41
6.9.5 TONER SUPPLY............................................................................6-42
Toner Bottle Replenishment Mechanism............................................6-42
Toner Supply Mechanism...................................................................6-43
6.9.6 TONER DENSITY CONTROL........................................................6-44
Overview.............................................................................................6-44
Toner Density Sensor Initial Setting....................................................6-46
Toner Concentration Measurement....................................................6-46
Vsp/Vsg Detection ..............................................................................6-46
Toner Supply Reference Voltage (Vref) Determination.......................6-46
Toner Supply Determination...............................................................6-46
Toner Supply Motor On Time Determinations.....................................6-47

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6.9.7 TONER SUPPLY IN ABNORMAL SENSOR CONDITIONS...........6-48
ID Sensor............................................................................................6-48
TD Sensor...........................................................................................6-48
6.9.8 TONER NEAR END/END DETECTION AND RECOVERY............6-49
Toner Near End Detection..................................................................6-49
Toner Near End Recovery..................................................................6-49
Toner End Detection...........................................................................6-49
Toner End Recovery...........................................................................6-49
6.10 DRUM CLEANING AND TONER RECYCLING.....................................6-50
6.10.1 DRUM CLEANING........................................................................6-50
6.10.2 TONER RECYCLING...................................................................6-50
6.11 PAPER FEED........................................................................................6-51
6.11.1 OVERVIEW ..................................................................................6-51
6.11.2 PAPER FEED DRIVE MECHANISM............................................6-52
6.11.3 PAPER FEED AND SEPARATION MECHANISM........................6-52
6.11.4 PAPER LIFT MECHANISM..........................................................6-53
6.11.5 PAPER END DETECTION...........................................................6-53
6.11.6 PAPER SIZE DETECTION...........................................................6-54
Paper Tray..........................................................................................6-54
By-pass Tray.......................................................................................6-55
6.11.7 SIDE FENCES..............................................................................6-56
6.11.8 PAPER REGISTRATION..............................................................6-56
6.12 IMAGE TRANSFER AND PAPER SEPARATION.................................6-57
6.12.1 OVERVIEW ..................................................................................6-57
6.12.2 IMAGE TRANSFER CURRENT TIMING......................................6-58
6.12.3 TRANSFER ROLLER CLEANING................................................6-59
6.12.4 PAPER SEPARATION MECHANISM...........................................6-59
6.13 IMAGE FUSING AND PAPER EXIT......................................................6-60
6.13.1 OVERVIEW ..................................................................................6-60
6.13.2 FUSING DRIVE AND RELEASE MECHANISM...........................6-60
6.13.3 FUSING ENTRANCE GUIDE SHIFT............................................6-61
6.13.4 PRESSURE ROLLER...................................................................6-61
6.13.5 FUSING TEMPERATURE CONTROL..........................................6-62
Overview.............................................................................................6-62
Fusing Lamp Control...........................................................................6-64
Fusing Temperature Control for Thick Paper at the By-pass Tray......6-65
Pre-heat Mode (Fusing Idling) ............................................................6-65
To Prevent Offset when Making Multiple Copies
on Small-width Paper..........................................................................6-65
Reduced Copy Speed with Narrow Paper ..........................................6-65
6.13.6 OVERHEAT PROTECTION .........................................................6-66
6.14 DUPLEX UNIT.......................................................................................6-67
6.14.1 OVERALL.....................................................................................6-67
6.14.2 DRIVE MECHANISM....................................................................6-68
6.14.3 BASIC OPERATION.....................................................................6-69
Larger than A4 Short-edge/LT Short-edge..........................................6-69
Up to A4 Short-edge/LT Short-edge...................................................6-70
6.14.4 FEED IN AND EXIT MECHANISM...............................................6-71
6.15 ENERGY SAVER MODES....................................................................6-72

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6.15.1 OVERVIEW ..................................................................................6-72
6.15.2 LOW POWER MODE...................................................................6-73
Entering Low Power Mode..................................................................6-73
What Happens in Low Power Mode....................................................6-73
Returning to Stand-by Mode...............................................................6-74
6.15.3 NIGHT/OFF MODE.......................................................................6-74
Entering Night/Off Mode .....................................................................6-74
What Happens in Night/Off Mode.......................................................6-75
Returning to Stand-by Mode...............................................................6-75
PERIPHERALS
AUTO REVERSE DOCUMENT FEEDER (B379)
1 OVERALL MACHINE INFORMATION...................................B379-1
1.1 MECHANICAL COMPONENT LAYOUT ............................................ B379-1
1.2 ELECTRICAL COMPONENT LAYOUT.............................................. B379-2
1.3 DRIVE LAYOUT................................................................................. B379-3
2 DETAILED SECTION DESCRIPTIONS .................................B379-4
2.1 ORIGINAL SIZE DETECTION............................................................ B379-4
2.2 PICK-UP AND SEPARATION ............................................................ B379-6
2.3 ORIGINAL TRANSPORT AND EXIT.................................................. B379-7
2.3.1 SINGLE-SIDED ORIGINALS..................................................... B379-7
2.3.2 DOUBLE-SIDED ORIGINALS................................................... B379-8
2.3.3 ORIGINAL TRAILING EDGE SENSOR..................................... B379-9
2.4 STAMP............................................................................................. B379-10
2.5 TIMING CHARTS............................................................................. B379-11
2.5.1 SINGLE-SIDED ORIGINAL MODE (A3).................................. B379-11
2.5.2 SINGLE-SIDED ORIGINAL MODE (A3, STAMP MODE)........ B379-12
2.5.3 DOUBLE-SIDED ORIGINAL MODE........................................ B379-13
2.5.4 DOUBLE-SIDED ORIGINAL MODE (STAMP MODE)............. B379-14
2.6 JAM DETECTION............................................................................. B379-15
2.7 OVERALL ELECTRICAL CIRCUIT .................................................. B379-16
2.8 FREE RUN....................................................................................... B379-17
Procedure.................................................................................... B379-17
One-sided Free Run Process ...................................................... B379-17
Two-sided Free Run Process ...................................................... B379-17
3 REPLACEMENT AND ADJUSTMENT.................................B379-18
3.1 DF EXIT TABLE AND COVER......................................................... B379-18
3.2 ORIGINAL FEED UNIT .................................................................... B379-19
3.3 LEFT COVER................................................................................... B379-20
3.4 PICK-UP ROLLER............................................................................ B379-21
3.5 FEED BELT...................................................................................... B379-22

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3.6 SEPARATION ROLLER................................................................... B379-23
3.7 ORIGINAL SET/ORIGINAL REVERSE SENSORS.......................... B379-24
3.8 ORIGINAL L/W SENSOR, TRAILING EDGE SENSOR................... B379-25
3.9 FEED CLUTCH, PICK-UP SOL, TRANSPORT MOTOR,
FEED MOTOR.................................................................................. B379-26
Exterior ........................................................................................ B379-26
DF Feed Clutch............................................................................ B379-26
Pick-up Solenoid.......................................................................... B379-26
Transport Motor........................................................................... B379-26
DF Feed Motor............................................................................. B379-26
3.10 REGISTRATION SENSOR............................................................. B379-27
3.11 STAMP SOLENOID AND ORIGINAL EXIT SENSOR.................... B379-28
DOCUMENT FEEDER (B387)
1 OVERALL INFORMATION ....................................................B387-1
1.1 MECHANICAL COMPONENT LAYOUT ............................................ B387-1
1.2 ELECTRICAL COMPONENT LAYOUT.............................................. B387-2
1.3 DRIVE LAYOUT................................................................................. B387-3
2 DETAILED SECTION DESCRIPTIONS .................................B387-4
2.1 ORIGINAL SIZE DETECTION............................................................ B387-4
2.2 PICK-UP AND SEPARATION ............................................................ B387-6
2.3 ORIGINAL TRANSPORT AND EXIT MECHANISM........................... B387-7
2.4 STAMP............................................................................................... B387-8
2.5 TIMING CHARTS............................................................................... B387-9
2.5.1 A3.............................................................................................. B387-9
2.5.2 A3, STAMP MODE.................................................................. B387-10
2.6 JAM DETECTION............................................................................. B387-11
2.7 OVERALL ELECTRICAL CIRCUIT .................................................. B387-12
2.8 FREE RUN....................................................................................... B387-13
Procedure.................................................................................... B387-13
Free Run Process........................................................................ B387-13
3 REPLACEMENT AND ADJUSTMENT.................................B387-14
3.1 EXTERIOR COVERS....................................................................... B387-14
3.1.1 REAR COVER......................................................................... B387-14
3.1.2 ORIGINAL TABLE................................................................... B387-14
3.1.3 FRONT COVER ...................................................................... B387-14
3.1.4 ORIGINAL ENTRANCE GUIDE .............................................. B387-14
3.1.5 DF FEED COVER.................................................................... B387-15
3.2 FEED UNIT....................................................................................... B387-15
3.3 SEPARATION ROLLER................................................................... B387-15
3.4 PICK-UP ROLLER............................................................................ B387-16
3.5 FEED BELT...................................................................................... B387-16
3.6 ORIGINAL SENSORS (WIDTH, LENGTH, TRAILING EDGE)......... B387-17
3.7 ORIGINAL SET SENSOR ................................................................ B387-18
3.8 TRANSPORT MOTOR..................................................................... B387-18

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3.9 DF COVER OPEN SENSOR/FEED CLUTCH/ROM/
DF DRIVE BOARD........................................................................... B387-19
Exterior ........................................................................................ B387-19
Feed Cover Open Sensor............................................................ B387-19
Feed Clutch ................................................................................. B387-19
ROM ............................................................................................ B387-19
DF Drive Board............................................................................ B387-19
3.10 REGISTRATION SENSOR............................................................. B387-21
3.11 PICK-UP SOLENOID ..................................................................... B387-21
3.12 STAMP SOLENOID........................................................................ B387-22
PAPER TRAY UNIT (B384)
1 OVERALL MACHINE INFORMATION...................................B384-1
1.1 MECHANICAL COMPONENT LAYOUT ............................................ B384-1
1.2 ELECTRICAL COMPONENT LAYOUT.............................................. B384-2
1.3 DRIVE LAYOUT................................................................................. B384-3
2 DETAILED DESCRIPTIONS..................................................B384-4
2.1 PAPER FEED AND SEPARATION MECHANISM ............................. B384-4
2.2 PAPER LIFT MECHANISM................................................................ B384-5
2.3 PAPER END DETECTION................................................................. B384-7
2.4 PAPER HEIGHT DETECTION........................................................... B384-8
PAPER SIZE DETECTION............................................................ B384-9
2.5 SIDE AND END FENCES ................................................................ B384-10
Side Fences................................................................................. B384-10
End Fence ................................................................................... B384-10
3 REPLACEMENT AND ADJUSTMENT.................................B384-11
3.1 FEED ROLLER REPLACEMENT..................................................... B384-11
3.2 TRAY MAIN BOARD REPLACEMENT ............................................ B384-12
3.3 TRAY MOTOR REPLACEMENT...................................................... B384-12
3.4 RELAY CLUTCH REPLACEMENT .................................................. B384-13
3.5 UPPER PAPER FEED CLUTCH REPLACEMENT.......................... B384-14
3.6 LOWER PAPER FEED CLUTCH REPLACEMENT ......................... B384-15
3.7 LIFT MOTOR REPLACEMENT........................................................ B384-16
3.8 PAPER END SENSOR REPLACEMENT......................................... B384-17
3.9 VERTICAL TRANSPORT SENSOR REPLACEMENT..................... B384-17
3.10 PAPER SIZE SWITCH REPLACEMENT ....................................... B384-18
PAPER TRAY UNIT (B385)
1 OVERALL MACHINE INFORMATION...................................B385-1
1.1 MECHANICAL COMPONENT LAYOUT ............................................ B385-1
1.2 ELECTRICAL COMPONENT LAYOUT.............................................. B385-2
1.3 DRIVE LAYOUT................................................................................. B385-3

xi
2 DETAILED DESCRIPTIONS..................................................B385-4
2.1 PAPER FEED AND SEPARATION.................................................... B385-4
2.2 PAPER LIFT MECHANISM................................................................ B385-5
2.3 PAPER END DETECTION................................................................. B385-7
2.4 PAPER HEIGHT DETECTION........................................................... B385-8
2.5 PAPER SIZE DETECTION................................................................. B385-9
2.6 SIDE AND END FENCES ................................................................ B385-10
Side Fences................................................................................. B385-10
End Fence ................................................................................... B385-10
3 REPLACEMENT AND ADJUSTMENT.................................B385-11
3.1 FEED ROLLER REPLACEMENT..................................................... B385-11
3.2 TRAY MAIN BOARD REPLACEMENT ............................................ B385-12
3.3 TRAY MOTOR REPLACEMENT...................................................... B385-13
3.4 LIFT MOTOR REPLACEMENT........................................................ B385-14
3.5 PAPER END SENSOR REPLACEMENT......................................... B385-15
3.6 PAPER SIZE SWITCH REPLACEMENT ......................................... B385-15
SPECIFICATIONS.....................................................................SPEC-1
1. GENERAL SPECIFICATIONS.............................................................SPEC-1
Duplex Unit (B043 only)................................................................SPEC-4
2. MACHINE CONFIGURATION.............................................................SPEC-5
3. OPTIONAL EQUIPMENT....................................................................SPEC-6
ARDF............................................................................................SPEC-6
ADF...............................................................................................SPEC-7
ONE-TRAY PAPER TRAY UNIT..................................................SPEC-8
TWO-TRAY PAPER TRAY UNIT..................................................SPEC-9
16MB IMB (Copier Memory Unit)*.................................................SPEC-9

B039/B040/B043
PARTS CATALOG
001128MIU

B039/B040/B043 PARTS CATALOG
TABLE
O
F
CO
NTENT
S
B039/B040/B043 PARTS LOCATION AND LIST
LOCATION OF UNIT................................................ 3
1.EXTERIOR 1 (B039)............................................ 8
2.EXTERIOR 2 (B040/B043)................................. 10
3.OPERATION PANEL (B039/B040/B043)........... 12
4.OPTICS SECTION 1 (B039/B040/B043)............ 14
5.OPTICS SECTION 2 (B039/B040/B043)............ 16
6.OPTICS SECTION 3 (B039/B040/B043)............ 18
7.LASER UNIT (B039/B040/B043)........................ 20
8.BY-PASS FEED SECTION (B039/B040/B043).. 22
9.PAPER CASSETTE (B039/B040/B043)............. 24
10.PAPER REGISTRATION (B039/B040/B043).... 26
11.1ST PAPER FEED SECTION
(B039/B040/B043) ............................................. 28
12.2ND PAPER FEED SECTION (B040/B043) ..... 30
13.VERTICAL TRANSPORT (B039/B040)............. 32
14.PCU 1 (B039/B040/B043).................................. 34
1
5
.P
CU
2
(
B
039/
B
0
4
0/
B
0
4
3)
..................................
36
16.TONER SUPPLY UNIT (B039/B040/B043) ....... 38
17.FUSING UNIT (B039/B040/B043)...................... 40
18.PAPER EXIT SECTION (B039/B040/B043) ...... 42
19.DUPLEX UNIT 1 (B043)..................................... 44
20.DUPLEX UNIT 2 (B043)..................................... 46
21.DUPLEX UNIT 3 (B043)..................................... 48
22.DRIVE SECTION (B039/B040/B043)................. 50
23.ELECTRICAL SECTION 1 (B039/B040/B043) .. 52
24.ELECTRICAL SECTION 2 (B039/B040/B043) .. 54
25.FRAME SECTION 1 (B039/B040/B043)............ 56
26.FRAME SECTION 2 (B040/B043)...................... 58
27.BICU BOARD (B039/B040/B043) ...................... 60
28.IO BOARD (B039/B040/B043)........................... 64
29.DECAL AND DOCUMENT (B039/B040/B043).. 68
30.SPECIAL TOOLS (B039/B040/B043) ................ 70
B039/B040/B043 PARTS INDEX
PARTS INDEX ........................................................... 2

FAX OPTION B404 PARTS LOCATION AND LIST
1.FAX OPTION 1 (B404) ........................................ 2
2.FAX OPTION 2 (B404) ........................................ 4
3.FCU BOARD (B404)............................................ 6
4.NCU BOARD NA (B404)..................................... 12
5.NCU BOARD EU (B404)..................................... 14
FAX OPTION B404 PARTS INDEX
PARTS INDEX........................................................... 2
DOCUMENT FEEDER B387 PARTS LOCATION
AND LIST
1.EXTERIOR (B387)............................................... 2
2.ORIGINAL FEED SECTION 1 (B387)................. 4
3.ORIGINAL FEED SECTION 2 (B387)................. 6
4.ORIGINAL TRANSFER AND FRAME (B387)..... 8
5.ELECTRICAL SECTION (B387)......................... 10
6.DECALS AND DOCUMENTS (B387)................. 12
DOCUMENT FEEDER B387 PARTS INDEX
PARTS INDEX........................................................... 2
ARDF B379 PARTS LOCATION AND LIST
1.ARDF 1 (B379)..................................................... 2
2.ARDF 2 (B379)..................................................... 4
3.ARDF 3 (B379)..................................................... 6
4.ARDF 4 (B379)..................................................... 8
5.ARDF 5 (B379).................................................... 10
6.ARDF 6 (B379).................................................... 12
7.ARDF 7 (B379).................................................... 14
8.DECAL AND DOCUMENT (B379)...................... 16
ARDF B379 PARTS INDEX
PARTS INDEX........................................................... 2
PAPER TRAY B384 PARTS LOCATION AND LIST
1.EXTERIOR (B384)............................................... 2
2.PAPER TRAY (B384) .......................................... 4
3.PAPER FEED/TRANSFER (B384)...................... 6
4.ELECTRICAL SECTION 1 (B384)....................... 8
5.ELECTRICAL SECTION 2 (B384)...................... 10
6.ELECTRICAL SECTION 3 (B384)...................... 12
7.DECAL AND DOCUMENT (B384)...................... 14

PAPER TRAY B384 PARTS INDEX
PARTS INDEX........................................................... 2
PLATEN COVER TYPE 1018 B406 PARTS
LOCATION AND LIST
1.PLATEN COVER TYPE 1018 (B406) ................... 2
PLATEN COVER TYPE 1018 B406 PARTS INDEX
PARTS INDEX.......................................................... 2
PAPER TRAY B385 PARTS LOCATION AND LIST
1.EXTERIOR (B385) .............................................. 2
2.PAPER TRAY (B385).......................................... 4
3.PAPER FEED SECTION (B385)......................... 6
4.ELECTRICAL/DRIVE SECTION (B385) ............. 8
5.DECAL AND DOCUMENT (B385) ..................... 10
PAPER TRAY B385 PARTS INDEX
PARTS INDEX........................................................... 2

B039/B040/B043 Parts Location and List
LOCATIONS OF UNITSLOCATIONS OF UNITS
1. EXTERIOR 1 (B039)
See Page 9
2. EXTERIOR 2 (B040/B043)
See Page 11
3. OPERATION PANEL (B039/B040/B043)
See Page 13
LOCATIONS OF UNITS
4. OPTICS SECTION 1 (B039/B040/B043)
See Page 15
LOCATIONS OF UNITS
5. OPTICS SECTION 2 (B039/B040/B043)
See Page 17
LOCATIONS OF UNITS
6. OPTICS SECTION 3 (B039/B040/B043)
See Page 19

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