Ricoh af1022 Service Manual s
Model R-C2a/b
(Machine Code: B022/B027)
SERVICE MANUAL
August 10th, 2001
Subject to change
!
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. 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.
4. If a job has started before the copier completes the warm-up or initializing
period, keep hands away from the mechanical and electrical components
because the starts making copies as soon as the warm-up period is
completed.
5. 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
Toner is non-toxic, but if you get it in your eyes by accident, it may cause
temporary eye discomfort. Try to remove with eye drops or flush with water as
first aid. If unsuccessful, get medical attention.
SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL
1. Do not incinerate the toner cassettes. Toner dust may ignite suddenly when
exposed to an open flame.
2. Dispose of toner cassettes in accordance with local regulations. (This is a
non-toxic unit.)
3. Dispose of replaced parts in accordance with local regulations.
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 one. Do
not recharge or burn this battery. Used NVRAM must be handled in
accordance with local regulations.
3. The danger of explosion exists if batteries on the FCU, MBU and JBIG are
incorrectly replaced. Replace only with the same or an equivalent type
recommended by the manufacturer. Discard used batteries in accordance
with the manufacturer’s instructions.
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 FOR LASER UNIT
WARNING: Turn off the main switch before atte mpting any of the
procedures in the Laser Unit section. Laser beams can
seriously damage your eyes.
CAUTION MARKING:
LASER-4.WMF
TABLE OF CONTENTS
1 OVERALL MACHINE INFORMATION......................................... 1-1
1.1 SPECIFICATIONS.....................................................................................1-1
1.2 MACHINE CONFIGURATION...................................................................1-5
1.2.1 SYSTEM COMPONENTS................................................................1-5
1.2.2 INSTALLABLE OPTION TABLE.......................................................1-7
Copier options.......................................................................................1-7
Fax option.............................................................................................1-7
Printer/scanner options.........................................................................1-7
1.3 PAPER PATH............................................................................................1-8
1.4 MECHANICAL COMPONENT LAYOUT ...................................................1-9
1.5 ELECTRICAL COMPONENT DESCRIPTIONS......................................1-11
1.6 DRIVE LAYOUT......................................................................................1-14
1.7 COPY PROCESS....................................................................................1-15
1.7.1 OVERVIEW....................................................................................1-15
1.8 BOARD STRUCTURE.............................................................................1-17
1.8.1 OVERVIEW....................................................................................1-17
1.8.2 CONTROLLER...............................................................................1-19
2 DETAILED SECTION DESCRIPTIONS ....................................... 2-1
2.1 SCANNING................................................................................................2-1
2.1.1 OVERVIEW......................................................................................2-1
2.1.2 SCANNER DRIVE............................................................................2-2
2.1.3 ORIGINAL SIZE DETECTION IN PLATEN MODE...........................2-3
2.2 IMAGE PROCESSING..............................................................................2-5
2.2.1 OVERVIEW......................................................................................2-5
2.2.2 SBU (SENSOR BOARD UNIT).........................................................2-6
2.2.3 AUTO IMAGE DENSITY...................................................................2-7
2.2.4 IPU (IMAGE PROCESSING UNIT)...................................................2-8
Overview...............................................................................................2-8
Image Processing Modes.....................................................................2-9
Image Processing Path.......................................................................2-10
Overview.............................................................................................2-10
SP Modes for Each Image Processing Step.......................................2-11
Text Mode...........................................................................................2-11
Photo Mode ........................................................................................2-12
Text/Photo Mode ................................................................................2-13
Pale Mode...........................................................................................2-14
Generation Copy.................................................................................2-15
Auto Shading......................................................................................2-16
Pre-Filtering........................................................................................2-16
Main Scan Magnification/Reduction....................................................2-16
Mirroring for ADF Mode......................................................................2-16
Characteristic Detection......................................................................2-17
Filtering...............................................................................................2-17
Overview.............................................................................................2-17
i
MTF Filter ...........................................................................................2-17
Smoothing Filter..................................................................................2-17
Characteristic Filter.............................................................................2-17
Independent Dot Erase.......................................................................2-18
Background Erase..............................................................................2-18
ID Gamma (γ) Correction....................................................................2-18
Gradation Processing.........................................................................2-18
Overview.............................................................................................2-18
Grayscale Processing.........................................................................2-19
Binary Picture Processing...................................................................2-19
Error Diffusion.....................................................................................2-19
Dithering .............................................................................................2-19
Line width correction...........................................................................2-19
2.2.5 VIDEO CONTROL UNIT (VCU)......................................................2-20
Fine Character and Image (FCI).........................................................2-20
2.3 LASER EXPOSURE................................................................................2-21
2.3.1 OVERVIEW....................................................................................2-21
2.3.2 AUTO POWER CONTROL (APC)..................................................2-22
2.3.3 LD SAFETY SWITCH.....................................................................2-23
2.4 PHOTOCONDUCTOR UNIT (PCU)........................................................2-24
2.4.1 OVERVIEW....................................................................................2-24
2.4.2 DRIVE.............................................................................................2-25
2.4.3 NEW PCU DETECTION.................................................................2-26
2.5 DRUM CHARGE .....................................................................................2-27
2.5.1 OVERVIEW....................................................................................2-27
2.5.1 CHARGE ROLLER VOLTAGE CORRECTION..............................2-28
Correction for Environmental Condi tions ............................................2-28
2.5.2 ID SENSOR PATTERN PRODUCTION TIMING............................2-29
2.5.3 DRUM CHARGE ROLLER CLEANING..........................................2-30
2.6 DEVELOPMENT.....................................................................................2-31
2.6.1 OVERVIEW....................................................................................2-31
2.6.2 DRIVE.............................................................................................2-32
2.6.3 DEVELOPER MIXING....................................................................2-33
2.6.4 DEVELOPMENT BIAS...................................................................2-34
2.6.5 TONER SUPPLY............................................................................2-35
Toner bottle replenishment mechanism..............................................2-35
Toner supply mechanism....................................................................2-36
2.6.6 TONER DENSITY CONTROL........................................................2-37
Overview.............................................................................................2-37
Toner density sensor initial setting......................................................2-39
Toner density measurement...............................................................2-39
Vsp/Vsg detection...............................................................................2-39
Toner supply reference voltage (Vref) determination..........................2-39
Toner supply determination................................................................2-39
Toner Supply Motor On Time Determinations.....................................2-40
2.6.7 TONER SUPPLY IN ABNORMAL SENSOR CONDITIONS...........2-41
ID sensor ............................................................................................2-41
TD Sensor...........................................................................................2-41
2.6.8 TONER NEAR END/END DETECTION AND RECOVERY ............2-41
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Toner Near End Detection..................................................................2-41
Toner Near End Recovery..................................................................2-42
Toner End Detection...........................................................................2-42
Toner End Recovery...........................................................................2-42
2.7 DRUM CLEANING AND TONER RECYCLING.......................................2-43
2.7.1 DRUM CLEANING..........................................................................2-43
2.7.2 TONER RECYCLING.....................................................................2-44
2.8 PAPER FEED..........................................................................................2-45
2.8.1 OVERVIEW....................................................................................2-45
2.8.2 PAPER FEED DRIVE MECHANISM..............................................2-46
2.8.3 PAPER FEED AND SEPARATION MECHANISM ......................... 2-47
2.8.4 PAPER LIFT MECHANISM............................................................2-48
2.8.5 PAPER END DETECTION.............................................................2-49
2.8.6 PAPER HEIGHT DETECTION.......................................................2-50
2.8.7 FEED PRESSURE ADJUSTMENT FOR PAPER SIZE..................2-51
Overview.............................................................................................2-51
Paper Size Thresholds........................................................................2-51
Feed Pressure Adjustment .................................................................2-52
Effect of the Amount of Remaining Paper...........................................2-52
From tray full to paper near-end .........................................................2-52
From paper near end to paper end.....................................................2-53
2.8.8 PAPER SIZE DETECTION.............................................................2-54
2.8.9 SPECIAL PAPER SETTING...........................................................2-55
2.8.10 SIDE AND END FENCES.............................................................2-56
Side Fences........................................................................................2-56
End Fence ..........................................................................................2-56
2.8.11 PAPER REGISTRATION..............................................................2-57
2.9 IMAGE TRANSFER AND PAPER SEPARATION...................................2-58
2.9.1 OVERVIEW....................................................................................2-58
2.9.2 IMAGE TRANSFER CURRENT TIMING........................................2-59
2.9.3 TRANSFER ROLLER CLEANING..................................................2-60
2.9.4 PAPER SEPARATION MECHANISM.............................................2-60
2.10 IMAGE FUSING AND PAPER EXIT......................................................2-61
2.10.1 OVERVIEW..................................................................................2-61
2.10.2 FUSING DRIVE AND RELEASE MECHANISM...........................2-62
2.10.3 FUSING ENTRANCE GUIDE SHIFT MECHANISM.....................2-63
2.10.4 PRESSURE ROLLER...................................................................2-64
2.10.5 CLEANING MECHANISM ............................................................2-64
2.10.6 FUSING TEMPERATURE CONTROL..........................................2-65
Temperature Control...........................................................................2-65
Fusing Lamp Control...........................................................................2-66
2.10.7 OVERHEAT PROTECTION .........................................................2-67
2.10.8 PAPER EXIT ................................................................................2-67
2.11 ENERGY SAVER MODES....................................................................2-68
2.11.1 OVERVIEW..................................................................................2-68
2.11.2 ENERGY SAVER MODE..............................................................2-69
Entering the energy saver mode.........................................................2-69
What happens in energy saver mode.................................................2-69
Return to stand-by mode....................................................................2-69
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2.11.3 AUTO OFF MODE........................................................................2-70
Entering off stand-by and off modes...................................................2-70
Off Stand-by mode..............................................................................2-70
Off Mode.............................................................................................2-70
Returning to stand-by mode................................................................2-70
3 INSTALLATION PROCEDURE.................................................... 3-1
3.1 INSTALLATION REQUIREMENTS...........................................................3-1
3.1.1 ENVIRONMENT...............................................................................3-1
3.1.2 MACHINE LEVEL.............................................................................3-1
3.1.3 MINIMUM SPACE REQUIREMENTS...............................................3-2
3.1.4 POWER REQUIREMENTS..............................................................3-3
3.2 COPIER INSTALLATION..........................................................................3-4
3.2.1 POWER SOCKETS FOR PERIPHERALS.......................................3-4
3.2.2 INSTALLATION FLOW CHART .......................................................3-5
3.2.3 ACCESSORY CHECK......................................................................3-6
3.2.4 INSTALLATION PROCEDURE........................................................3-7
3.3 PAPER TRAY UNIT INSTALLATION......................................................3-11
3.3.1 ACCESSORY CHECK....................................................................3-11
3.3.2 INSTALLATION PROCEDURE......................................................3-11
3.4 LCT INSTALLATION...............................................................................3-14
3.4.1 ACCESSORY CHECK....................................................................3-14
3.4.2 INSTALLATION PROCEDURE......................................................3-14
3.5 AUTO REVERSE DOCUMENT FEEDER INSTALLATION.....................3-17
3.5.1 ACCESSORY CHECK....................................................................3-17
3.5.2 INSTALLATION PROCEDURE......................................................3-17
3.6 INTERCHANGE UNIT INSTALLATION...................................................3-20
3.6.1 COMPONENT CHECK...................................................................3-20
3.6.2 INSTALLATION PROCEDURE......................................................3-21
3.7 1-BIN TRAY UNIT INSTALLATION.........................................................3-23
3.7.1 COMPONENT CHECK...................................................................3-23
3.7.2 INSTALLATION PROCEDURE......................................................3-23
3.8 SHIFT TRAY............................................................................................3-26
3.8.1 COMPONENT CHECK...................................................................3-26
3.8.2 INSTALLATION PROCEDURE......................................................3-26
3.9 BY-PASS FEED UNIT INSTALLATION...................................................3-28
3.9.1 COMPONENTS CHECK ................................................................3-28
3.9.2 INSTALLATION PROCEDURE......................................................3-28
3.10 DUPLEX UNIT INSTALLATION............................................................3-30
3.10.1 ACCESSORY CHECK..................................................................3-30
3.10.2 INSTALLATION PROCEDURE....................................................3-31
3.11 BRIDGE UNIT INSTALLATION.............................................................3-33
3.11.1 ACCESSORY CHECK..................................................................3-33
3.11.2 INSTALLATION PROCEDURE....................................................3-33
3.12 1,000-SHEET FINISHER INSTALLATION ............................................3-35
3.12.1 ACCESSORY CHECK..................................................................3-35
3.12.2 INSTALLATION PROCEDURE....................................................3-36
3.13 500-SHEET FINISHER INSTALLATION ...............................................3-39
3.13.1 ACCESSORY CHECK..................................................................3-39
iv
3.13.2 INSTALLATION PROCEDURE....................................................3-40
3.14 PLATEN COVER INSTALLATION........................................................3-42
3.14.1 MEMORY (G578/G579)................................................................3-43
3.14.2 HDD (B420)..................................................................................3-44
3.15 KEY COUNTER INSTALLATION..........................................................3-46
3.16 ANTI-CONDENSATION HEATER.........................................................3-48
3.17 TRAY HEATER.....................................................................................3-49
3.18 TRAY HEATER (OPTIONAL PAPER TRAY UNIT)...............................3-51
3.19 TRAY HEATER (OPTIONAL LCT)........................................................3-54
4 SERVICE TABLES....................................................................... 4-1
4.1 GENERAL CAUTION................................................................................4-1
4.1.1 PCU (PHOTOCONDUCTOR UNIT) .................................................4-1
4.1.2 TRANSFER ROLLER UNIT..............................................................4-1
4.1.3 SCANNER UNIT...............................................................................4-1
4.1.4 LASER UNIT ....................................................................................4-2
4.1.5 FUSING UNIT...................................................................................4-2
4.1.6 PAPER FEED...................................................................................4-2
4.1.7 OTHERS...........................................................................................4-2
4.2 SERVICE PROGRAM MODE....................................................................4-3
4.2.1 SERVICE PROGRAM MODE OPERATION.....................................4-3
Entering and Exiting SP mode..............................................................4-3
SP Mode Button Summary...................................................................4-4
Switching Between SP Mode and Copy Mode for Test Printing ........... 4-5
Selecting the Program Number.............................................................4-5
4.2.2 SERVICE PROGRAM MODE TABLES............................................4-6
SP1-XXX: Feed ....................................................................................4 -6
SP2-XXX: Drum..................................................................................4-16
SP4-XXX: Scanner .............................................................................4-25
SP5-XXX: Mode..................................................................................4-31
SP6-XXX: Peripherals.........................................................................4-41
SP7-XXX: Data Log............................................................................4-43
SP9-XXX: Debug/Testing ...................................................................4-52
4.2.3 TEST PATTERN PRINTING (SP2-902-3)......................................4-53
4.2.4 INPUT CHECK...............................................................................4-54
Main Machine Input Check (SP5-803)................................................4-54
ARDF Input Check (SP6-007).............................................................4-57
Finisher Input Check (SP6-117)..........................................................4-58
4.2.5 OUTPUT CHECK...........................................................................4-60
Main Machine Output Check (SP5-804) .............................................4-60
ARDF Output Check (SP6-008)..........................................................4-62
Finisher Output Check (SP6-118).......................................................4-62
4.2.6 SMC DATA LISTS (SP5-990).........................................................4-63
4.2.7 MEMORY ALL CLEAR (SP5-801)..................................................4-64
Using a Flash Memory Card...............................................................4-64
Without Using a Flash Memory Card..................................................4-65
4.2.8 UPLOADING/DOWNLOADING NVRAM DATA..............................4-66
Uploading NVRAM Data (SP5-824)....................................................4-66
Downloading NVRAM Data (SP5-825) ...............................................4-67
v
4.2.9 APS OUTPUT DISPLAY (SP4-301)...............................................4-68
4.2.10 DF APS SENSOR OUTPUT DISPLAY (SP6-901)........................4-69
4.2.11 NIP BAND WIDTH MEASUREMENT (SP1-109)..........................4-70
4.3 PROGRAM DOWNLOAD........................................................................4-71
4.4 SOFTWARE RESET...............................................................................4-72
4.5 SYSTEM SETTINGS AND COPY SETTING RESET..............................4-72
4.5.1 SYSTEM SETTING RESET...........................................................4-72
4.5.2 COPIER SETTING RESET ............................................................4-73
4.6 USER TOOLS.........................................................................................4-74
4.6.1 HOW TO USE UP MODE...............................................................4-74
UP Mode Initial Screen: User Tools/Counter Display..........................4-74
System Settings..................................................................................4-74
Copier/Document Server Features.....................................................4-75
Printer, Facsimile, Scanner Settings...................................................4-75
Inquiry.................................................................................................4-75
Counter...............................................................................................4-76
4.7 LEDS.......................................................................................................4-77
Controller............................................................................................4-77
SBCU..................................................................................................4-77
IPU......................................................................................................4-77
4.8 DIP SWITCHES.......................................................................................4-77
Controller: DIP SW2 ...........................................................................4-77
SBCU: DIP SW102.............................................................................4-77
4.9 SPECIAL TOOLS AND LUBRICANTS....................................................4-78
4.9.1 SPECIAL TOOLS...........................................................................4-78
4.9.2 LUBRICANTS.................................................................................4-78
5 PREVENTIVE MAINTENANCE SCHEDULE............................... 5-1
5.1 PM TABLE.................................................................................................5-1
6 REPLACEMENT AND ADJUSTMENT......................................... 6-1
6.1 SCANNER UNIT........................................................................................6-1
6.1.1 EXPOSURE GLASS.........................................................................6-1
6.1.2 SCANNER EXTERIOR/OPERATION PANEL..................................6-2
6.1.3 LENS BLOCK ASSEMBLY...............................................................6-3
6.1.4 ORIGINAL SIZE SENSORS.............................................................6-4
6.1.5 EXPOSURE LAMP...........................................................................6-5
6.1.6 SCANNER MOTOR/LAMP STABILIZER..........................................6-6
6.1.7 SCANNER WIRES...........................................................................6-7
6.2 LASER UNIT...........................................................................................6-10
6.2.1 CAUTION DECAL LOCATIONS.....................................................6-10
6.2.2 LASER UNIT ..................................................................................6-11
6.2.3 POLYGON MIRROR MOTOR........................................................6-12
6.2.4 LD UNIT..........................................................................................6-12
6.2.5 LASER SYNCHRONIZATION DETECTOR....................................6-13
6.3 PHOTOCONDUCTOR UNIT (PCU)........................................................6-14
6.3.1 PCU................................................................................................6-14
6.4 TRANSFER UNIT ....................................................................................6-15
6.4.1 TRANSFER ROLLER UNIT............................................................6-15
vi
6.4.2 IMAGE DENSITY SENSOR...........................................................6-16
6.5 FUSING/EXIT..........................................................................................6-17
6.5.1 FUSING UNIT.................................................................................6-17
6.5.2 THERMISTORS .............................................................................6-17
6.5.3 THERMOFUSE ..............................................................................6-18
6.5.4 HOT ROLLER AND FUSING LAMP...............................................6-20
6.5.5 PRESSURE ROLLER/CLEANING ROLLER..................................6-21
6.5.6 PAPER EXIT SENSOR/PAPER OVERFLOW SENSOR................6-22
6.6 PAPER FEED..........................................................................................6-23
6.6.1 FEED ROLLERS............................................................................6-23
6.6.2 PAPER END SENSOR...................................................................6-24
6.6.3 PAPER TRAY LIFT MOTORS........................................................6-25
6.6.4 REGISTRATION CLUTCH.............................................................6-26
6.6.5 PAPER FEED CLUTCHES............................................................. 6-27
Lower Paper Feed Clutch...................................................................6-27
Upper Paper Feed Clutch...................................................................6-27
6.6.6 RELAY CLUTCHES........................................................................6-28
6.6.7 PAPER SIZE DETECTOR..............................................................6-29
6.6.8 REGISTRATION SENSOR.............................................................6-30
6.6.9 RELAY SENSORS.........................................................................6-31
Upper Relay Sensor............................................................................6-31
Lower Relay Sensor............................................................................6-31
6.7 PCBS AND OTHER ITEMS.....................................................................6-32
6.7.1 CONTROLLER BOARD.................................................................6-32
6.7.2 SBCU BOARD................................................................................6-33
6.7.3 POWER PACK...............................................................................6-33
6.7.4 MAIN MOTOR................................................................................6-34
6.7.5 PSU................................................................................................6-35
6.8 COPY ADJUSTMENTS: PRINTING/SCANNING....................................6-36
6.8.1 PRINTING ......................................................................................6-36
Registration - Leading Edge/Side-to-Side...........................................6-36
Blank Margin.......................................................................................6-37
Main Scan Magnification.....................................................................6-37
Parallelogram Image Adjustment........................................................6-38
6.8.2 SCANNING.....................................................................................6-39
Registration: Platen Mode...................................................................6-39
Magnification.......................................................................................6-39
Standard White Density Adjustment ...................................................6-40
6.8.3 ADF IMAGE ADJUSTMENT...........................................................6-41
Registration.........................................................................................6-41
Sub Scan Magnification......................................................................6-41
6.8.4 TOUCH SCREEN CALIBRATION..................................................6-42
7 TROUBLESHOOTING ................................................................. 7-1
7.1 SERVICE CALL CONDITIONS.................................................................7-1
7.1.1 SUMMARY.......................................................................................7-1
7.1.2 SC CODE DESCRIPTIONS .............................................................7-2
7.2 SELF-DIAGNOSTIC MODE....................................................................7-12
7.2.1 SELF-DIAGNOSTIC MODE AT POWER ON.................................7-12
vii
7.2.2 DETAILED SELF-DIAGNOSTIC MODE.........................................7-13
Executing Detailed Self-Diagnosis......................................................7-13
7.3 PAPER FEED TROUBLESHOOTING.....................................................7-15
7.4 SKEWED IMAGE....................................................................................7-16
7.5 ELECTRICAL COMPONENT DEFECTS ................................................7-17
7.5.1 SENSORS......................................................................................7-17
7.5.2 SWITCHES.....................................................................................7-19
7.6 BLOWN FUSE CONDITIONS.................................................................7-20
OPTIONS
PAPER TRAY UNIT (A860/B390)
1 OVERALL MACHINE INFORMATION...................................B390-1
1.1 SPECIFICATIONS.............................................................................. B390-1
1.2 MECHANICAL COMPONENT LAYOUT ............................................ B390-2
1.3 ELECTRICAL COMPONENT LAYOUT.............................................. B390-3
1.4 ELECTRICAL COMPONENT DESCRIPTION.................................... B390-4
1.5 DRIVE LAYOUT................................................................................. B390-5
2 DETAILED DESCRIPTIONS..................................................B390-6
2.1 PAPER FEED AND SEPARATION MECHANISM............................. B390-6
2.2 PAPER LIFT MECHANISM................................................................ B390-7
2.3 PAPER END DETECTION................................................................. B390-9
2.4 PAPER HEIGHT DETECTION......................................................... B390-10
2.5 PAPER SIZE DETECTION............................................................... B390-12
2.6 SIDE AND END FENCES ................................................................ B390-13
Side Fences................................................................................. B390-13
End Fence ................................................................................... B390-13
3 REPLACEMENT AND ADJUSTMENT.................................B390-14
3.1 FEED ROLLER REPLACEMENT..................................................... B390-14
3.2 TRAY MAIN BOARD REPLACEMENT ............................................ B390-15
3.3 TRAY MOTOR REPLACEMENT...................................................... B390-15
3.4 RELAY CLUTCH REPLACEMENT.................................................. B390-16
3.5 UPPER PAPER FEED CLUTCH REPLACEMENT.......................... B390-17
3.6 LOWER PAPER FEED CLUTCH REPLACEMENT......................... B390-18
3.7 LIFT MOTOR REPLACEMENT........................................................ B390-19
3.8 PAPER END SENSOR REPLACEMENT ......................................... B390-20
3.9 VERTICAL TRANSPORT SENSOR REPLACEMENT..................... B390-20
3.10 PAPER SIZE SWITCH REPLACEMENT ....................................... B390-21
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LCT (A862/B391)
1 OVERALL MACHINE INFORMATION...................................B391-1
1.1 SPECIFICATIONS.............................................................................. B391-1
1.2 MECHANICAL COMPONENT LAYOUT ............................................ B391-2
1.3 ELECTRICAL COMPONENT LAYOUT.............................................. B391-3
1.4 ELECTRICAL COMPONENT DESCRIPTIONS................................. B391-4
2 DETAILED SECTION DESCRIPTIONS .................................B391-5
2.1 PAPER FEED..................................................................................... B391-5
2.2 REVERSE ROLLER AND PICK-UP ROLLER RELEASE.................. B391-6
2.3 TRAY LIFT ......................................................................................... B391-7
2.4 NEAR END/END DETECTION........................................................... B391-8
2.5 RIGHT TRAY SIDE FENCE............................................................... B391-9
2.6 LEFT TRAY REAR FENCE................................................................ B391-9
2.7 RIGHT TRAY PAPER END DETECTION ........................................ B391-10
3 REPLACEMENT AND ADJUSTMENT.................................B391-11
3.1 DETACHING THE TRAY FROM THE MAINFRAME........................ B391-11
3.2 REAR FENCE HP SENSOR............................................................ B391-11
3.3 CHANGING THE TRAY PAPER SIZE ............................................. B391-12
3.4 LEFT TRAY PAPER END SENSOR ................................................ B391-12
3.5 TRAY LIFT MOTOR......................................................................... B391-13
3.6 TRAY MOTOR.................................................................................. B391-14
3.7 PAPER FEED CLUTCH AND RELAY CLUTCH............................... B391-15
3.8 PAPER FEED UNIT ......................................................................... B391-16
3.9 UPPER LIMIT, RIGHT TRAY PAPER END,
AND RELAY SENSORS .................................................................. B391-17
3.10 REAR FENCE MOTOR.................................................................. B391-18
3.11 PICK-UP/PAPER FEED/REVERSE ROLLERS.............................. B391-19
AUTO REVERSE DOCUMENT FEEDER (B386)
1 OVERALL MACHINE INFORMATION...................................B386-1
1.1 SPECIFICATIONS.............................................................................. B386-1
1.2 MECHANICAL COMPONENT LAYOUT ............................................ B386-2
1.3 ELECTRICAL COMPONENT LAYOUT.............................................. B386-3
1.4 ELECTRICAL COMPONENT DESCRIPTION.................................... B386-4
1.5 DRIVE LAYOUT................................................................................. B386-5
2 DETAILED SECTION DESCRIPTIONS .................................B386-6
2.1 ORIGINAL SIZE DETECTION............................................................ B386-6
2.2 MIXED ORIGINAL SIZE MODE ......................................................... B386-9
2.3 PICK-UP AND SEPARATION.......................................................... B386-10
2.4 ORIGINAL TRANSPORT AND EXIT................................................ B386-11
2.4.1 SINGLE-SIDED ORIGINALS................................................... B386-11
ix
2.4.2 DOUBLE-SIDED ORIGINALS................................................. B386-12
2.4.3 ORIGINAL TRAILING EDGE SENSOR................................... B386-13
2.5 STAMP............................................................................................. B386-14
2.6 TIMING CHART................................................................................ B386-15
2.7 CONDITION OF JAM DETECTION.................................................. B386-16
2.8 OVERALL ELECTRICAL CIRCUIT .................................................. B386-17
3 SERVICE TABLES...............................................................B386-18
3.1 DIP SWITCHES................................................................................ B386-18
4 REPLACEMENT AND ADJUSTMENT.................................B386-19
4.1 DF EXIT TABLE AND COVER......................................................... B386-19
4.2 ORIGINAL FEED UNIT .................................................................... B386-20
4.3 LEFT COVER................................................................................... B386-21
4.4 PICK-UP ROLLER............................................................................ B386-22
4.5 FEED BELT...................................................................................... B386-23
4.6 SEPARATION ROLLER...................................................................B386-24
4.7 ORIGINAL SET/ORIGINAL REVERSE SENSOR............................ B386-25
4.8 ORIGINAL SIZE SENSOR............................................................... B386-26
4.9 ORIGINAL FEED DRIVE.................................................................. B386-27
DF Feed Clutch............................................................................ B386-27
Pick-up Solenoid.......................................................................... B386-27
Transport Motor........................................................................... B386-27
DF Feed Motor............................................................................. B386-27
4.10 REGISTRATION SENSOR.............................................................B386-28
4.11 STAMP SOLENOID AND ORIGINAL EXIT SENSOR.................... B386-29
INTERCHANGE UNIT (B300/B416)
1 OVERALL MACHINE INFORMATION...................................B416-1
1.1 SPECIFICATIONS.............................................................................. B416-1
1.2 MECHANICAL COMPONENT LAYOUT ............................................ B416-2
1.3 DRIVE LAYOUT................................................................................. B416-3
2 DETAILED DESCRIPTION ....................................................B416-4
2.1 JUNCTION GATE MECHANISM........................................................ B416-4
To the Exit Tray or Bridge Unit
(for the Upper Tray on top of the Bridge Unit, or the Finisher)....... B416-4
To the 1-bin Tray............................................................................B416-4
To the Duplex Unit.........................................................................B416-4
3 REPLACEMENT AND ADJUSTMENT...................................B416-5
3.1 EXIT SENSOR REPLACEMENT........................................................ B416-5
x
1-BIN TRAY UNIT (A898/B413)
1 OVERALL INFORMATION ....................................................B413-1
1.1 SPECIFICATIONS.............................................................................. B413-1
1.2 MECHANICAL COMPONENT LAYOUT ............................................ B413-2
1.3 ELECTRICAL COMPONENT LAYOUT.............................................. B413-3
1.4 ELECTRICAL COMPONENT DESCRIPTION.................................... B413-3
2 DETAILED SECTION DESCRIPTIONS .................................B413-4
2.1 BASIC OPERATION........................................................................... B413-4
3 REPLACEMENT AND ADJUSTMENT...................................B413-5
3.1 PAPER SENSOR REMOVAL............................................................. B413-5
SHIFT TRAY UNIT (B313/B459)
1 OVERALL MACHINE INFORMATION...................................B459-1
1.1 SPECIFICATIONS.............................................................................. B459-1
1.2 COMPONENT LAYOUT..................................................................... B459-2
2 DETAILED SECTION DESCRIPTIONS .................................B459-3
2.1 BASIC OPERATION........................................................................... B459-3
2.2 PRIMARY MECHANISMS..................................................................B459-4
2.2.1 TRAY SHIFT.............................................................................. B459-4
2.2.2 HALF TURN DETECTION......................................................... B459-5
3 REPLACEMENT AND ADJUSTMENT...................................B459-6
3.1 TRAY COVER REPLACEMENT ........................................................ B459-6
3.1.1 TRAY COVER REMOVAL......................................................... B459-6
3.1.2 TRAY COVER ATTACHMENT.................................................. B459-6
3.2 TRAY MOTOR AND HALF TURN SENSOR REPLACEMENT.......... B459-7
3.2.1 REPLACING THE TRAY MOTOR............................................. B459-7
3.2.2 REPLACING THE HALF TURN SENSOR:................................ B459-7
BY-PASS (A899/B415)
1 OVERALL MACHINE INFORMATION...................................B415-1
1.1 SPECIFICATIONS.............................................................................. B415-1
1.2 MECHANICAL COMPONENT LAYOUT ............................................ B415-1
1.3 ELECTRICAL COMPONENT LAYOUT.............................................. B415-2
1.4 ELECTRICAL COMPONENT DESCRIPTION.................................... B415-2
2 DETAILED DESCRIPTIONS..................................................B415-3
2.1 BASIC OPERATION........................................................................... B415-3
xi
2.2 PAPER SIZE DETECTION................................................................. B415-4
3 REPLACEMENT AND ADJUSTMENT...................................B415-5
3.1 PAPER FEED ROLLER/FRICTION PAD/PAPER END SENSOR......B415-5
3.2 PAPER SIZE SENSOR BOARD......................................................... B415-6
3.3 PAPER FEED CLUTCH..................................................................... B415-7
DUPLEX (A896/B414)
1 OVERALL MACHINE INFORMATION...................................B414-1
1.1 SPECIFICATIONS.............................................................................. B414-1
1.2 MECHANICAL COMPONENT LAYOUT ............................................ B414-2
1.3 ELECTRICAL COMPONENT LAYOUT.............................................. B414-3
1.4 ELECTRICAL COMPONENT DESCRIPTION.................................... B414-4
1.5 DRIVE LAYOUT................................................................................. B414-5
2 DETAILED DESCRIPTIONS..................................................B414-6
2.1 BASIC OPERATION........................................................................... B414-6
Longer than A4 sideways/LT sideways.......................................... B414-6
Up to A4 sideways/LT sideways.................................................... B414-7
2.2 FEED IN AND EXIT MECHANISM..................................................... B414-8
When paper is fed into duplex unit:................................................ B414-8
Inversion and Exit:......................................................................... B414-8
3 REPLACEMENT AND ADJUSTMENT...................................B414-9
3.1 COVER REMOVAL............................................................................ B414-9
3.2 ENTRANCE SENSOR REPLACEMENT.......................................... B414-10
3.3 EXIT SENSOR REPLACEMENT...................................................... B414-11
BRIDGE UNIT (A897/B417)
1 OVERALL MACHINE INFORMATION...................................B417-1
1.1 SPECIFICATIONS.............................................................................. B417-1
1.2 MECHANICAL COMPONENT LAYOUT ............................................ B417-2
1.3 ELECTRICAL COMPONENT LAYOUT.............................................. B417-3
1.4 ELECTRICAL COMPONENT DESCRIPTION.................................... B417-4
1.5 DRIVE LAYOUT................................................................................. B417-5
2 DETAILED DESCRIPTION ....................................................B417-6
2.1 JUNCTION GATE MECHANISM........................................................ B417-6
3 REPLACEMENT AND ADJUSTMENT...................................B417-7
3.1 BRIDGE UNIT DRIVE MOTOR REPLACEMENT .............................. B417-7
3.2 TRAY EXIT SENSOR REPLACEMENT............................................. B417-8
3.3 RELAY SENSOR REPLACEMENT.................................................... B417-8
xii
1,000-SHEET FINISHER (B408)
1 REPLACEMENT AND ADJUSTMENT...................................B408-1
1.1 MAIN PCB.......................................................................................... B408-1
1.2 STAPLER UNIT.................................................................................. B408-2
1.3 MOTORS............................................................................................ B408-3
1.3.1 SHIFT MOTOR.......................................................................... B408-3
1.3.2 STAPLER MOTOR.................................................................... B408-3
1.3.3 UPPER TRANSPORT MOTOR AND EXIT MOTOR................. B408-3
1.3.4 LOWER TRANSPORT MOTOR................................................ B408-4
1.4 MOTORS AND SENSORS................................................................. B408-5
1.4.1 PREPARATION......................................................................... B408-5
1.4.2 STACK HEIGHT SENSOR........................................................ B408-6
1.4.3 STAPLER TRAY PAPER SENSOR........................................... B408-6
1.4.4 LOWER TRAY LIFT MOTOR .................................................... B408-6
1.4.5 STACK FEED-OUT MOTOR..................................................... B408-7
2 TROUBLESHOOTING ...........................................................B408-8
2.1 JAM DETECTION............................................................................... B408-8
3 SERVICE TABLES.................................................................B408-9
3.1 DIP SWITCH SETTINGS ................................................................... B408-9
4 DETAILED DESCRIPTIONS................................................B408-10
4.1 GENERAL LAYOUT......................................................................... B408-10
4.2 ELECTRICAL COMPONENT LAYOUT............................................ B408-11
4.3 ELECTRICAL COMPONENT DESCRIPTION.................................. B408-13
4.4 DRIVE LAYOUT............................................................................... B408-15
4.5 JUNCTION GATES.......................................................................... B408-17
Upper tray mode..........................................................................B408-17
Sort/stack mode........................................................................... B408-17
Staple mode................................................................................. B408-17
4.6 UPPER TRAY................................................................................... B408-18
4.7 LOWER TRAY UP/DOWN MECHANISMS...................................... B408-19
4.8 PAPER SHIFT MECHANISM........................................................... B408-20
4.9 JOGGER UNIT PAPER POSITIONING MECHANISM..................... B408-21
4.10 EXIT GUIDE PLATE....................................................................... B408-22
4.11 STAPLER MECHANISM................................................................ B408-23
4.12 STAPLER UNIT MOVEMENT MECHANISM................................. B408-24
4.13 PAPER FEED-OUT MECHANISM................................................. B408-25
5 OVERALL MACHINE INFORMATION.................................B408-26
5.1 SPECIFICATIONS............................................................................ B408-26
Upper Tray................................................................................... B408-26
Lower Tray................................................................................... B408-26
xiii
500-SHEET FINISHER (G302/B442)
1 REPLACEMENT AND ADJUSTMENT...................................B442-1
1.1 EXTERIOR......................................................................................... B442-1
1.2 ENTRANCE UPPER GUIDE / PAPER EXIT UNIT............................. B442-4
1.3 ENTRANCE LOWER GUIDE ............................................................. B442-5
1.4 PAPER EXIT UNIT GEAR / PADDLE ROLLER SOLENOID.............. B442-5
1.5 STAPLER UNIT.................................................................................. B442-6
1.6 JOGGER TRAY UNIT ........................................................................ B442-6
1.7 PAPER EXIT SENSOR FEELER ....................................................... B442-7
1.8 MAIN MOTOR.................................................................................... B442-7
1.9 JOGGER MOTOR.............................................................................. B442-8
1.10 CONTROL BOARD.......................................................................... B442-8
1.11 OUTPUT TRAY UNIT....................................................................... B442-9
2 DETAILED DESCRIPTIONS................................................B442-10
2.1 OVERALL MACHINE INFORMATION ............................................. B442-10
2.1.1 COMPONENT LAYOUT.......................................................... B442-10
Mechanical component layout ..................................................... B442-10
Drive layout.................................................................................. B442-11
2.1.2 ELECTRICAL COMPONENT DESCRIPTIONS...................... B442-12
2.2 DETAILED SECTION DESCRIPTIONS........................................... B442-14
2.2.1 OUTPUT TRAY MECHANISM ................................................ B442-14
Stack height detection..................................................................B442-14
Output tray up/down mechanism................................................. B442-15
2.2.2 PAPER FEED.......................................................................... B442-16
Overview ...................................................................................... B442-16
Straight feed out mode................................................................. B442-16
Shift sorting mode........................................................................ B442-17
Stapling mode.............................................................................. B442-19
2.2.3 JAM CONDITIONS.................................................................. B442-20
2.2.4 ERROR DETECTION.............................................................. B442-20
3 OVERALL MACHINE INFORMATION.................................B442-21
3.1 SPECIFICATIONS............................................................................. B442-21
xiv
10 August, 2001 SPECIFICATIONS
1. OVERALL MACHINE INFORMATION
1.1 SPECIFICATIONS
Configuration: Desktop
Copy Process: Dry electrostatic transfer system
Originals: Sheet/Book
Original Size: Maximum A3/11" x 17"
Copy Paper Size: Maximum
A3/11" x 17"
Minimum
A5/8
Custom sizes
2nd paper tray
Width: 100 ~ 297 mm (3.9" ~ 11.5")
Length: 148 ~ 432 mm (5.8" ~ 17.0")
By-pass tray (Option):
Width: 90 ~ 305 mm (3.5" ~ 12.0")
Length: 148 ~ 1,260 mm (5.8" ~ 49.6")
Copy Paper Weight: Paper Tray:
60 ~ 105 g/m2, 16 ~ 28 lb (1st paper tray)
52 ~ 157 g/m2, 16 ~ 43 lb (2nd paper tray)
By-pass (Option):
52 ~ 157 g/m2, 16 ~ 42 lb
1/2
" x 5
" lengthwise
1/2
Overall
Information
Reproduction Ratios: 5 Enlargement and 7 Reduction
A4/A3 Version LT/DLT Version
400%
200%
Enlargement
Full Size 100% 100%
Reduction
141%
122%
115%
93%
87%
82%
71%
65%
50%
25%
400%
200%
155%
129%
121%
93%
85%
78%
73%
65%
50%
25%
1-1
SPECIFICATIONS 10 August, 2001
Zoom: 25% to 400% in 1% steps (Platen mode)
25% to 200% in 1% steps (ADF mode)
Power Source: 120 V, 60 Hz:
More than 12 A (for North America)
220 ~ 240 V, 50/60 Hz
More than 7 A (for Europe/Asia)
110 V, 50/60 Hz
More than 13 A (for Taiwan)
Power Consumption:
Mainframe Only Full System
120 V 220 ~ 240 V 120 V 220 ~ 240 V
Maximum
Copying
Warm-up
Stand-by
Energy Saver / Auto
Off
Less than
1.44 kW
Approx.
650 Wh
Approx.
1.44 kW
Approx.
150 Wh
Less than 10 W Less than 10 W Less than 10 W Less than 10 W
Less than
1.5 kW
Approx.
650 Wh
Approx.
1.5 kW
Approx.
150 Wh
Less than
1.44 kW
Approx.
680 Wh
Approx.
1.44 kW
Approx.
160 Wh
Less than
1.5 kW
Approx.
680 Wh
Approx.
1.5 kW
Approx.
160 Wh
NOTE: 1) Full system: Mainframe + ADF + 1-bin Sorter + Paper Tray Unit +
Duplex Unit + Bridge Unit + Finisher
2) Without the optional heaters, fax unit, and pri nter contr ol ler
Noise Emission (Sound Power Level):
Stand-by (Mainframe only): US/Asia Model: 40 dB(A)
Europe Model: 40 dB(A)
Operating (Mainframe only): US/Asia Model: 63 dB(A)
Europe Model: 63 dB(A)
Operating (Full System): 68.5 dB(A)
NOTE: 1) The above measurements were made in accordance with ISO 7779.
2) Full System: Mainframe + ADF + 1-bin Sorter + Paper Tray Unit +
Duplex Unit + Bridge Unit + Finisher
1-2
10 August, 2001 SPECIFICATIONS
Dimensions (W x D x H): 550 x 604 x 709 mm (21.7" x 23.8" x 28.0")
NOTE: Measurement Conditions
1) With the paper tray unit or LCT
2) Without the ADF
Weight: Less than 55 kg (121.3lb)
Copying Speed (copies/minute):
Overall
Information
Russian-C2A
Non-memory copy mode 22 13
Memory copy mode 22 13
Russian-C2B
Non-memory copy mode 27 15
Memory copy mode 27 15
A4 sideways/
11" x 8
A4 sideways/
11" x 8
1/2
1/2
"
"
A3/11" x 17"
A3/11" x 17"
NOTE: Measurement Conditions
1) Not APS mode
2) A4/LT copying
3) Full size
Warm-up Time: Less than 10 seconds (20°C, 68°F) from when the
operation switch is turned on.
Less than 15 seconds (20°C, 68°F) from when the main
switch is turned on.
First Copy Time: Less than 4.9 s (A4), less than 5.0 s (LT)
NOTE: Measurement Conditions
1) When the polygonal mirror motor is spinning.
2) From the 1st paper tray
3) Not APS mode
4) Full size
Copy Number Input: Ten-key pad, 1 to 99 (count up or count down)
Manual Image Density: 7 steps
1-3
SPECIFICATIONS 10 August, 2001
Paper Tray Capacity: Paper Tray:
500 sheets x 2
(Special paper in the 2nd paper tray: 50 sheets)
Paper Tray Unit (Option):
500 sheets x 2
LCT (Option):
1000 sheets x 2
By-pass Tray (Option):
100 sheets (A4, B5, A5, B6, 8
10 sheets (A3, B4, 11" x 17", 8
" x 11", 5
1/2
" x 13")
1/2
1/2
" x 8
1/2
")
1 sheets (non-standard sizes)
NOTE: Copy paper weight: 80g/m2 (20 lb)
Toner Replenishment: Cartridge exchange (360 g/cartridge)
Toner Yield: 11 k copies (A4 sideways, 6% full black, 1 to 1 copying,
ADS mode)
Copy Tray Capacity: Copy Tray: 500 sheets (without 1-bin tray)
250 sheets (with 1-bin tray)
Memory Capacity: Standard 32 MB, Optional memory either 32 MB or
64MB
1-4
10 August, 2001 MACHINE CONFIGURATION
1.2 MACHINE CONFIGURATION
1.2.1 SYSTEM COMPONENTS
11
10
12
13
1
2
3
4
5
6
Overall
Information
B027V501.WMF
9
8
7
1-5
MACHINE CONFIGURATION 10 August, 2001
Version Item
Copier
Fax
Printer /
Scanner
Copier(R-C2a) B022 13
Copier(R-C2b) B027 13
ARDF (Optional) B386 2 1), and new features added
Platen Cover (Optional) B406 1 Common with K-C1
Paper Tray Unit-2 tray (Optional) B390 8 1) and 2)
LCT (Optional) B391 7 1) and 2)
1-bin Tray (Optional) B413 3 1)
Shift Tray (Optional) B459 12 1)
Duplex Unit (Optional) B414 5 1) and 2)
By-pass Tray (Optional) B415 6 1)
Interchange Unit (Optional) B416 4 1)
Bridge Unit (Optional) B417 11 1) and 2)
1000-sheet finisher (Optional) B408 10 New option
500-sheet finisher (Optional) B442 9 1)
User Account Enhance Unit
(Optional)
HDD (Optional) B420
Memory – 32 MB (Optional) G578 Common with A-C2
Memory – 64 MB (Optional) G579 Common with A-C2
Key Counter Bracket (Optional) B452 1)
Fax Controller (Optional) B418
G3 Interface Unit (Optional) B448
ISDN (Optional) B449
Fax Function Expander
(Optional)
Handset (Optional) B433 Common with Kir-C
Printer Unit (Optional) B461
Printer/Scanner Unit (Optional) B453
PS3 (Optional) B462
NIB (Optional) G335
IEEE1394 (Optional) G590 Common with A-C2
Machine
Code
B443 Common with A-C2
A892 Common with R-C1
No. Comments
The components are the
same as the 500-finisher for
Russian-P2
Comments:
The following are the differences between Russian-C1 and this machine.
1) New color for the exterior cover
2) The drive motor and the control board have been changed so they will be
compatible with R-C2c (32 cpm machine )
1-6
10 August, 2001 MACHINE CONFIGURATION
1.2.2 INSTALLABLE OPTION TABLE
Copier options
No. Option
1 ARDF (Optional)
2 Platen Cover (Optional)
3 Paper Tray Unit – two-tray
(Optional)
4 LCT (Optional)
5 1-bin Tray (Optional)
6 Shift Tray (Optional)
7 Duplex Unit (Optional)
8 By-pass Tray (Optional)
9 Interchange Unit (Optional)
10 Bridge Unit (Optional)
11 1000-sheet Finisher (Optional)
12 500-sheet Finisher (Option)
13 Memory 32 MB/ 64 MB (Optional)
14 Key Counter Bracket
Russian-
C2A/C2B
!
!
!
!
∆
!
∆
!
!
∆
∆
∆
!
!
Note
Install either no. 1 or 2.
Install either no. 1 or 2.
Install either no. 3 or 4.
Install either no. 3 or 4.
Requires no.9.
Install either no. 6 or 10.
Requires no.9.
No. 10 requires no.11 or
12.
Install either no. 6 or 10.
Install either no. 11 or 12
Requires no.10, and eit her
no.3 or 4
Install either no. 11 or 12
Requires no.10, and eit her
no.3 or 4
Overall
Information
! = Available ∆ = Requires another option
Fax option
All options for the fax unit are available when the fax unit has been installed.
Printer/scanner options
1. The NIB and IEEE1394 cannot both be installed at the same time.
2. The printer/scanner option requires the NIB and 64MB memory options.
3. The printer option requires the 64MB memory option.
1-7
PAPER PATH 10 August, 2001
1.3 PAPER PATH
1
8
2
3
4
5
7
6
1. Optional ADF
2. Optional 1-bin Tray
3. Optional Interchange Unit
4. Optional Duplex Unit
5. Optional By-pass Feed Tray
6. Optional Paper Tray Unit
7. Optional 1000-sheet Finisher
8. Optional Bridge Unit
B022V155.WMF
1-8
10 August, 2001 MECHANICAL COMPONENT LAYOUT
1.4 MECHANICAL COMPONENT LAYOUT
1 2 3 4 5 6 7
8
28
9
27
10
Overall
Information
26
25
24
23
11
12
13
14
15
16
17
18
19
20
B027V502.WMF
2122
1-9
MECHANICAL COMPONENT LAYOUT 10 August, 2001
1. 2nd scanner
2. Original width sensor
3. Exposure lamp
4. 1st scanner
5. Original length sensor
6. Lens
7. Scanner motor
8. SBU board
9. Exit roller
10. Fusing hot roller
11. Fusing pressure roller
12. Cleaning unit
13. OPC drum
14. Transfer roller
15. Development roller
16. ID sensor
17. Registration roller
18. Friction pad
19. Paper feed roller
20. Paper size sensor
21. Bottom plate
22. Tray heater
23. Polygon mirror motor
24. Laser unit
25. Toner supply bottle holder
26. Drum charge roller
27. Anti-condensation heater
28. Scanner home position sensor
1-10
10 August, 2001 ELECTRICAL COMPONENT DESCRIPTIONS
1.5 ELECTRICAL COMPONENT DESCRIPTIONS
Refer to the electrical component layout on the reverse side of the point-to-point
diagram for the location of the components.
Symbol Name Function
Motors
M1 Scanner Drives the 1st and 2nd scanners.
M2 Polygonal Mirror Turns the polygonal mirror.
M3 Main Drives the main unit components.
M4 Exhaust Fan Removes heat from around the fusing unit.
M5 Upper Pa per Lift Raises the bottom plate in the 1st paper tray.
M6 Lower Pa per Li ft Raises the bott om plate in the 2nd paper tray.
M7
Magnetic Clutches
MC1 Upper Paper Feed Starts paper feed from the 1 s t paper t r ay.
MC2 Lower Paper Feed Starts paper feed from the 2nd paper tray.
MC3 Upper Relay Drives the upper relay rollers.
MC4 Lower Relay Drives the lower relay rollers.
MC4 Registration Drives the registration rollers.
Toner Supply Rotates the toner bottle to supply toner to the
development unit.
Overall
Information
Switches
SW1 Main
SW2 Right Upper Cover Detects whet her t he right upper cover is open or not.
SW3 Right Cover
SW4 Right Lower Cover Detects whet her t he right lower cover is open or not.
SW5 Upper Paper Size
SW6 Lower Paper Size
SW7 New PCU Detect Detects when a new PCU is install ed.
SW8 Front Cover Safety
SW9 Operation
Sensors
S1 Scanner HP
S2 Platen Cover
S3 Original Width
S4 Original Length 1
Provides power to the machine. If this is off, there is
no power supplied to the mach ine.
Cuts the +5VLD and +24V dc power line and detects
whether the right cover is open or not.
Determines what siz e of pa per is in the upper paper
tray.
Determines what siz e of pa per i s in t he l ower paper
tray.
Cuts the +5VLD and +24V dc power line and detects
whether the front cover is open or not.
Provides power for machine operation. The machine
still has powe r if this switch is off.
Informs the CPU when the 1st and 2nd scanners are
at home position.
Informs the CPU that the platen cover is in the up or
down position (related to the A PS/ARE functions).
Detects original width. This is one of the APS (Auto
Paper Select) sensors.
Detects original le ngt h. This is one of the APS (Auto
Paper Select) sensors.
1-11
ELECTRICAL COMPONENT DESCRIPTIONS 10 August, 2001
Symbol Name Function
S5 Original Length 2
S6 Toner Density (TD)
S7 1st Paper End
S8 2nd Paper End
S9 Image Density (ID)
S10 Paper Overflow Detects paper overflow in the built-in copy t r ay.
S11 Paper Exit Detects misfeeds.
S12 Upper Relay Detects misfeeds.
S13 Lower Relay Detects misfeeds.
S14 Registration
S15 1st Paper Lift
S16 2nd Paper Lift
S17 1st Pap er Height – 1 Detects the amount of paper in the 1st paper tray.
S18 1st Pap er Height – 2 Detects the amount of paper in the 1st paper tray.
S19 2nd Paper Height – 1 Detects the amount of pap er in t he 2nd paper tray.
S20 2nd Paper Height – 2 Detects the amount of pap er in t he 2nd paper tray.
Detects original le ngt h. This is one of the APS (Auto
Paper Select) sensors.
Detects the amount of toner inside the development
unit.
Informs the CPU when the 1st paper tray runs out of
paper.
Informs the CPU when the 2nd paper tray runs out of
paper.
Detects the density of v arious pat t erns and the
reflectivity of the drum for process control.
Detects misfeeds and contro ls registration clutch offon timing.
Detects when the paper in the 1 st paper t r ay is at the
feed height.
Detects when the paper in the 2 nd paper tray is at
the feed height.
PCBs
PCB1 Controller
PCB2 PSU (Power Supply Unit)
PCB3
PCB4 SBU (Sensor Board Unit )
PCB5 Lamp Stabilizer Stabilizes the power to the exposure la mp.
PCB6 LDD (Laser Diode Driver) Controls the laser diode.
PCB7 Operation Panel Controls the operation panel.
PCB8 High Voltage Supp ly
PCB9 Memory (Option)
PCB10
Solenoids
SOL1 Fusing Drive Release Releases the drive for the fusing unit.
Lamps
L1 Exposure Lamp
SBCU (Scanner & Base
Engine Contro l Unit)
IPU (Image Processing
Unit)
Controls all applications both directly and thro ugh
other control boards.
Provides dc power to the system and ac power to
the fusing lamp and heaters.
Controls the fusing lamp an d t he mechanical parts of
the machine.
Contains the CCD, and out put s a video signal to the
BICU board.
Supplies high voltage to the drum charge roller,
development roller, and transfer roller.
Expands the memory capacity for the copier, printer,
and scanner features.
Performs the image proces si ng f unct ions.
Applies high intensit y light to the original for
exposure.
1-12
10 August, 2001 ELECTRICAL COMPONENT DESCRIPTIONS
Symbol Name Function
L2 Main Fusing La mp Heats the center of the hot roller.
L3 Secondary Fusing Lamp Heats both ends of the hot roll er.
L4
Quenching Lamp Neutralizes any charge remaining on the drum
surface after cleaning.
Heaters
H1
Anti-condensation
(Option)
Turns on when the main power sw it ch is off to
prevent moisture from forming on the opt ics.
Turns on when the main power sw it ch is off to
H2 Tray (Option)
prevent moisture from forming around the paper
trays.
Others
TS1 Fusing Thermostats
Opens the fusing lamp circu it if the fusing unit
overheats.
TH1 Fusing Thermistors Detects the temperature of the hot roller.
LSD 1
Laser Synchronization
Detector
Detects the laser beam at the start of the main scan.
CO1 Mechanical Counter Keeps track of the total numb er of prints made.
Used for control of authorized use. If this feature is
CO2 Key Counter (Option)
enabled for copying, copy ing will be impossible unt i l
it is installed.
Overall
Information
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