Page 1
A292/A293/A292P/A293P
(To be used in conjunction with A229 Service Manual)
RICOH GROUP COMPANIES
B098
SERVICE MANUAL
000930MIU
Page 2
Page 3
®
®
A292/A293/A292P/A293P/B098
SERVICE MANUAL
RICOH GROUP COMPANIES
Page 4
Page 5
A292/A293/A292P/A293P
B098
SERVICE MANUAL
000930MIU
Page 6
Page 7
It is the reader's responsibility when discussing the information contained within this
document to maintain a level of confidentiality that is in the best interest of Ricoh
Corporation and its member companies.
NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY
FASHION AND DISTRIBUTED WITHOUT THE PRIOR
PERMISSION OF RICOH CORPORATION.
All product names, domain names or product illustrations, including desktop images,
used in this document are trademarks, registered trademarks or the property of their
respective companies.
They are used throughout this book in an informational or editorial fashion only and for
the benefit of such companies. No such use, or the use of any trade name, or web
site is intended to convey endorsement or other affiliation with Ricoh products.
2002 RICOH Corporation. All rights reserved.
Page 8
Page 9
p
t
r
g
l
y
p
WARNING
The Service Manual contains information
regarding service techniques, procedures,
rocesses and spare parts of office equipmen
distributed by Ricoh Corporation. Users of this
manual should be either service trained o
certified by successfully completing a Ricoh
Technical Training Program.
Untrained and uncertified users utilizin
information contained in this service manual to
repair or modify Ricoh equipment risk persona
injury, damage to property or loss of warrant
rotection.
Ricoh Corporation
Page 10
Page 11
PRODUCT CODE
A292 3355 5455 Aficio 551 2055DP
A293 3370 5470 Aficio 700 2070DP
LEGEND
GESTETNER LANIER RICOH SAVIN
A292
w/G594 Controller
A293
w/G594 Controller
B098
DOCUMENTATION HISTORY
REV. NO. DATE COMMENTS
* 5/2000 Original Printing
1 10/2002 B098 Addition
--
--
5502
LD055
Aficio 551P
Aficio 700P
Aficio 1055
--
--
2555
Page 12
Page 13
Rev. 10/2002
TABLE OF CONTENTS
COMPARISON BETWEEN A292/A293 AND A229
OVERALL INFORMATION
1. OVERALL MACHINE INFORMATION........................................ 1-1
1.1 SPECIFICATIONS.....................................................................................1-1
1.1.1 COPIER ENGINE .............................................................................1-1
1.1.2 ADF ..................................................................................................1-5
1.2 MACHINE CONFIGURATION...................................................................1-6
1.3 MECHANICAL COMPONENT LAYOUT ...................................................1-7
1.3.1 COPIER ENGINE .............................................................................1-7
1.3.2 ADF ..................................................................................................1-9
1.4 PAPER PATH..........................................................................................1-10
1.5 COPY PROCESS....................................................................................1-11
1.6 DRIVE LAYOUT ......................................................................................1-13
1.6.1 COPIER ENGINE ...........................................................................1-13
1.6.2 ADF ................................................................................................1-14
1.7 ELECTRICAL COMPONENT DESCRIPTION.........................................1-15
1.7.1 COPIER ENGINE ...........................................................................1-15
1.7.2 ADF ................................................................................................1-21
DETAILED DESCRITPIONS
2. DETAILED DESCRIPTIONS ....................................................... 2-1
2.1 DOCUMENT FEEDER ..............................................................................2-1
2.1.1 PICK-UP ROLLER RELEASE ..........................................................2-1
2.1.2 BOTTOM PLATE LIFT......................................................................2-2
2.1.3 PICK-UP AND SEPARATION ..........................................................2-3
2.1.4 ORIGINAL FEED..............................................................................2-4
2.1.5 ORIGINAL SIZE DETECTION..........................................................2-5
Original Length .....................................................................................2-5
Original Width .......................................................................................2-5
2.1.6 ORIGINAL TRANSPORT .................................................................2-6
2.1.7 ORIGINAL SKEW CORRECTION....................................................2-7
2.1.13 ORIGINAL INVERSION AND FEED-OUT......................................2-8
General Operation ................................................................................2-8
Original Inversion..................................................................................2-9
Original Exit (Single-Sided Original Mode)..........................................2-10
Original Exit (Double-Sided Original Mode) ........................................2-11
2.1.9 JAM CONDITIONS.........................................................................2-12
Feed-in................................................................................................2-12
Feed-out .............................................................................................2-12
Inversion .............................................................................................2-12
SM i A292/A293/B098
Page 14
Rev. 10/2002
2.2 SCANNING..............................................................................................2-13
2.2.1 OVERVIEW ....................................................................................2-13
2.2.2 SCANNER DRIVE ..........................................................................2-14
2.2.3 ORIGINAL SIZE DETECTION IN BOOK MODE ............................2-15
2.3 IMAGE PROCESSING ............................................................................2-16
2.3.1 OVERVIEW ....................................................................................2-16
2.3.2 SBU ................................................................................................2-17
2.3.3 AUTO IMAGE DENSITY (ADS) ......................................................2-18
2.3.4 IPU (IMAGE PROCESSING UNIT).................................................2-19
Overview.............................................................................................2-19
2.3.5 IMAGE PROCESSING STEPS AND RELATED SP MODES.........2-20
2.3.6 AUTO SHADING ............................................................................2-25
Black Level Correction........................................................................2-25
White Level Correction........................................................................2-25
2.3.7 BACKGROUND ERASE.................................................................2-26
Background Erase ..............................................................................2-26
2.3.13 INDEPENDENT DOT ERASE ......................................................2-27
2.3.9 FILTERING, MAIN SCAN MAGNIFICATION/REDUCTION ...........2-28
Overview.............................................................................................2-28
Filtering ...............................................................................................2-28
Main Scan Magnification/Reduction....................................................2-29
Sub Scan Magnification ......................................................................2-29
2.3.10 GAMMA (G) CORRECTION.........................................................2-30
2.3.11 GRADATION PROCESSING .......................................................2-30
Three-graduation Processing..............................................................2-30
Four-graduation Processing................................................................2-31
Error Diffusion and Dithering...............................................................2-31
2.3.12 LINE WIDTH CORRECTION........................................................2-31
2.4 LASER EXPOSURE................................................................................2-32
2.4.1 AUTO POWER CONTROL.............................................................2-32
2.4.2 DUAL BEAM WRITING ..................................................................2-33
2.4.3 LASER BEAM PITCH CHANGE MECHANISM
(FOR A292/A293 ONLY).................................................................2-34
2.4.4 LD SAFETY SWITCHES ................................................................2-35
2.5 DRUM UNIT ............................................................................................2-36
2.5.1 PROCESS CONTROL....................................................................2-36
Overview.............................................................................................2-36
Drum potential sensor calibration .......................................................2-37
VSG adjustment..................................................................................2-37
VG Adjustment....................................................................................2-38
LD power adjustment..........................................................................2-39
Toner Density Adjustment...................................................................2-39
VREF Update......................................................................................2-40
2.5.2 DRUM UNIT COMPONENTS.........................................................2-41
2.5.3 DRUM CHARGE.............................................................................2-42
Overview.............................................................................................2-42
Charge Corona Wire Cleaning Mechanism.........................................2-43
2.5.4 DRUM CLEANING AND TONER RECYCLING..............................2-44
Overview.............................................................................................2-44
A292/A293/B098 ii SM
Page 15
Rev. 10/2002
Drive Mechanism ................................................................................2-45
Cleaning Blade Pressure Mechanism and Side-to-Side Movement....2-46
2.5.5 OTHERS.........................................................................................2-47
Air Flow Around the Drum...................................................................2-47
Pick-off Mechanism ............................................................................2-48
2.6 DEVELOPMENT AND TONER SUPPLY ................................................2-49
2.6.1 OVERVIEW ....................................................................................2-49
2.6.2 DEVELOPMENT MECHANISM......................................................2-50
2.6.3 DEVELOPMENT BIAS ...................................................................2-51
2.6.4 TONER DENSITY CONTROL ........................................................2-52
Overview.............................................................................................2-52
Sensor control mode...........................................................................2-52
Image pixel count control ....................................................................2-53
2.6.5 TONER END DETECTION.............................................................2-54
Toner Near End ..................................................................................2-54
Toner End...........................................................................................2-54
2.6.6 TONER END RECOVERY .............................................................2-54
2.6.7 ABNORMAL TD AND ID SENSOR CONDITIONS .........................2-55
2.7 IMAGE TRANSFER AND PAPER SEPARATION ...................................2-56
2.7.1 IMAGE TRANSFER AND PAPER SEPARATION MECHANISM ...2-56
2.7.2 TRANSFER BELT UNIT LIFT MECHANISM..................................2-57
2.7.3 TRANSFER BELT CLEANING MECHANISM ................................2-58
2.13 PAPER FEED........................................................................................2-59
2.13.1 OVERVIEW ..................................................................................2-59
2.13.2 DRIVE MECHANISM....................................................................2-60
2.13.3 TANDEM LCT – TRAY 1 ..............................................................2-61
Overview.............................................................................................2-61
Connecting the Left and Right Sides of the Tray ................................2-62
Paper Lift/Remaining Paper Detection................................................2-63
Fence Drive ........................................................................................2-65
Rear Fence Drive................................................................................2-66
Tray Positioning ..................................................................................2-67
2.13.4 TRAY POSITIONING MECHANISM – TRAYS 1 TO 3 .................2-68
2.13.5 PAPER LIFT MECHANISM - TRAYS 2 AND 3.............................2-69
2.13.6 VERTICAL TRANSPORT MECHANISM ......................................2-70
2.13.7 PAPER REGISTRATION..............................................................2-71
Overview.............................................................................................2-71
2.13.13 PAPER SIZE DETECTION – TRAY 2 ........................................2-72
2.9 IMAGE FUSING ......................................................................................2-73
2.9.1 OVERVIEW ....................................................................................2-73
2.9.2 FUSING ENTRANCE GUIDE .........................................................2-74
2.9.3 FUSING DRIVE MECHANISM .......................................................2-75
2.10 PAPER EXIT/DUPLEX..........................................................................2-76
2.10.1 OVERVIEW ..................................................................................2-76
2.10.2 INVERTER ...................................................................................2-77
Feed-in and Jogging ...........................................................................2-77
Feed-out .............................................................................................2-78
2.10.3 DUPLEX TRAY FEED MECHANISM ...........................................2-79
2.10.4 BASIC DUPLEX FEED OPERATION...........................................2-80
SM iii A292/A293/B098
Page 16
Rev. 10/2002
Longer than A4 / Letter lengthwise .....................................................2-80
2.11 ENERGY SAVER MODES ....................................................................2-83
2.11.1 LOW POWER MODE ...................................................................2-83
Entering low power mode ...................................................................2-83
What happens in low power mode ......................................................2-83
Return to stand-by mode ....................................................................2-83
INSTALLATION
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 ..............................................................3-2
3.2 COPIER (A292/A293/B0913) ....................................................................3-3
3.2.1 ACCESSORY CHECK......................................................................3-3
3.2.2 INSTALLATION PROCEDURE ........................................................3-4
3.3 LCT (11/B5137).......................................................................................3-14
3.3.1 ACCESSORY CHECK....................................................................3-14
3.3.2 INSTALLATION PROCEDURE ......................................................3-15
3.4 3,000-SHEET FINISHER (9/B5136)........................................................3-20
3.4.1 ACCESSORY CHECK....................................................................3-20
3.4.2 INSTALLATION PROCEDURE ......................................................3-21
3.5 PUNCH UNIT INSTALLATION (A1312) FOR 9/B5136 FINISHER..........3-24
3.5.1 ACCESSORY CHECK....................................................................3-24
3.5.2 PUNCH UNIT INSTALLATION .......................................................3-25
3.6 FINISHER (B302)....................................................................................3-28
3.6.1 INSTALLATION PROCEDURE ......................................................3-28
3.7 PUNCH UNIT INSTALLATION (A1312) FOR B302 FINISHER...............3-31
3.7.1 ACCESSORY CHECK....................................................................3-31
3.7.2 PUNCH UNIT INSTALLATION .......................................................3-32
3.13 KEY COUNTER INSTALLATION ..........................................................3-35
3.9 COPY CONNECTOR KIT INSTALLATION (10)......................................3-36
3.10 LG KIT (B375/B51313) ..........................................................................3-39
3.10.1 ACCESSORY CHECK..................................................................3-39
3.10.2 INSTALLATION PROCEDURE ....................................................3-40
SERVICE TABLES
4. SERVICE TABLES...................................................................... 4-1
4.1 GENERAL CAUTIONS..............................................................................4-1
4.1.1 DRUM...............................................................................................4-1
4.1.2 DRUM UNIT .....................................................................................4-1
4.1.3 TRANSFER BELT UNIT ...................................................................4-2
4.1.4 SCANNER UNIT...............................................................................4-2
4.1.5 LASER UNIT ....................................................................................4-2
4.1.6 CHARGE CORONA..........................................................................4-3
A292/A293/B098 iv SM
Page 17
Rev. 10/2002
4.1.7 DEVELOPMENT ..............................................................................4-3
4.1.13 CLEANING .....................................................................................4-4
4.1.9 FUSING UNIT...................................................................................4-4
4.1.10 PAPER FEED.................................................................................4-4
4.1.11 USED TONER ................................................................................4-4
4.2 SERVICE PROGRAM MODE....................................................................4-5
4.2.1 SERVICE PROGRAM MODE OPERATION.....................................4-5
Service Program Access Procedure .....................................................4-5
Accessing Copy Mode from within an SP Mode ...................................4-7
Selecting the Program Number.............................................................4-8
Inputting a Value or Setting for an SP Mode.........................................4-9
4.2.2 SERVICE PROGRAM MODE TABLES..........................................4-10
4.2.3 TEST PATTERN PRINTING (SP2-902) .........................................4-66
Test Pattern Table (SP2-902-2: Test Pattern Printing – IPU) .............4-66
Test Pattern Table (SP2-902-3: Test Pattern Printing – Printing) .......4-66
4.2.4 INPUT CHECK ...............................................................................4-67
Main Machine Input Check (SP5-1303)..............................................4-67
ADF Input Check (SP6-007) ...............................................................4-71
4.2.5 OUTPUT CHECK ...........................................................................4-72
Main Machine Output Check (SP5-1304) ...........................................4-72
ADF Output Check (SP6-0013) ..........................................................4-73
4.2.6 SYSTEM PARAMETER AND DATA LISTS (SMC LISTS) .............4-73
4.2.7 MEMORY ALL CLEAR (SP5-1301) ................................................4-74
4.2.13 SOFTWARE RESET ....................................................................4-75
4.2.9 SYSTEM SETTING AND COPY SETTING (UP MODE) RESET ...4-75
System Setting Reset .........................................................................4-75
Copy Features Reset..........................................................................4-75
4.3 PROGRAM AND DATA DOWNLOAD.....................................................4-76
4.3.1 OVERVIEW ....................................................................................4-76
4.3.2 DOWNLOAD THE BICU SOFTWARE FROM BICU TO FLASH
MEMORY CARD .............................................................................4-77
4.3.3 DOWNLOAD NVRAM DATA TO THE BICU ..................................4-78
4.3.4 DOWNLOAD NVRAM DATA FROM BICU TO FLASH MEMORY
CARD .............................................................................................4-79
4.3.5 DOWNLOAD STAMP DATA TO THE BICU ...................................4-80
4.4 USER PROGRAM MODE .......................................................................4-81
4.4.1 HOW TO ENTER AND EXIT UP MODE.........................................4-81
4.4.2 UP MODE TABLE ..........................................................................4-81
System Setting Table..........................................................................4-81
Copy Features Table ..........................................................................4-82
4.4.3 IMAGE QUALITY SETTING BY UP MODE....................................4-86
Text Mode...........................................................................................4-86
Text/Photo Mode ................................................................................4-90
Photo Mode ........................................................................................4-91
Pale Mode...........................................................................................4-92
Generation Mode ................................................................................4-92
4.5 TEST POINTS/DIP SWITCHES/LEDS....................................................4-93
4.5.1 DIP SWITCHES..............................................................................4-93
4.5.2 TEST POINTS ................................................................................4-93
SM v A292/A293/B098
Page 18
Rev. 10/2002
4.5.3 FUSES............................................................................................4-94
4.5.4 VARIABLE RESISTORS ................................................................4-95
4.5.5 LEDS ..............................................................................................4-95
4.6 SPECIAL TOOLS AND LUBRICANTS ....................................................4-95
4.6.1 SPECIAL TOOLS ...........................................................................4-95
4.6.2 LUBRICANTS.................................................................................4-95
4.7 FIRMWARE HISTORY .............................................................................4-96
PREVENTIVE MAINTENANCE
5. PREVENTIVE MAINTENANCE SCHEDULE .............................. 5-1
5.1 PM TABLE.................................................................................................5-1
REPLACEMENT AND ADJUSTMENT
6. REPLACEMENT AND ADJUSTMENT........................................ 6-1
6.1 EXTERIOR ................................................................................................6-1
6.1.1 FILTERS...........................................................................................6-1
Ozone Filter: Duct.................................................................................6-1
Filter Vacuum........................................................................................6-1
6.2 DOCUMENT FEEDER ..............................................................................6-2
6.2.1 COVER REMOVAL ..........................................................................6-2
6.2.2 FEED UNIT REMOVAL AND SEPARATION ROLLER
REPLACEMENT...............................................................................6-4
6.2.3 FEED BELT REPLACEMENT ..........................................................6-5
6.2.4 PICK-UP ROLLER REPLACEMENT ................................................6-6
6.2.5 SENSOR REPLACEMENT...............................................................6-7
Entrance and Registration Sensors ......................................................6-7
Width Sensor ........................................................................................6-8
Exit Sensor and Inverter Sensor ...........................................................6-9
6.2.6 TRANSPORT BELT REPLACEMENT............................................6-10
6.3 SCANNER UNIT......................................................................................6-11
6.3.1 EXPOSURE GLASS.......................................................................6-11
6.3.2 LENS BLOCK .................................................................................6-12
6.3.3 ORIGINAL SIZE SENSORS...........................................................6-13
6.3.4 EXPOSURE LAMP.........................................................................6-14
6.3.5 SCANNER MOTOR / MCU.............................................................6-15
Scanner Motor ....................................................................................6-15
MCU....................................................................................................6-15
6.3.6 SCANNER WIRES .........................................................................6-16
Rear Scanner Drive Wire....................................................................6-19
Front Scanner Drive Wire ...................................................................6-20
Reinstallation ......................................................................................6-21
6.4 LASER UNIT ...........................................................................................6-23
6.4.1 CAUTION DECAL LOCATIONS.....................................................6-23
6.4.2 LD UNIT REPLACEMENT..............................................................6-24
6.4.3 LASER BEAM PITCH ADJUSTMENT............................................6-25
6.4.4 POLYGON MIRROR MOTOR REPLACEMENT ............................6-29
A292/A293/B098 vi SM
Page 19
Rev. 10/2002
6.5 DRUM UNIT ............................................................................................6-30
6.5.1 DRUM POTENTIAL SENSOR REPLACEMENT............................6-30
6.5.2 DRUM MOTOR REPLACEMENT...................................................6-31
6.5.3 TONER OUTPUT AND RECYCLING PUMP UNIT
REPLACEMENT.............................................................................6-32
6.6 DEVELOPMENT AND TONER SUPPLY ................................................6-34
6.6.1 DEVELOPMENT AND AIR DUST FILTER REPLACEMENT .........6-34
6.6.2 DEVELOPER REPLACEMENT ......................................................6-35
6.6.3 TONER END SENSOR REPLACEMENT.......................................6-37
6.6.4 DEVELOPMENT MOTOR REPLACEMENT ..................................6-37
6.7 TRANSFER BELT UNIT..........................................................................6-38
6.7.1 TRANSFER BELT UNIT REMOVAL/INSTALLATION ....................6-38
- Removal - .........................................................................................6-38
- Installation - ......................................................................................6-38
6.13 PAPER FEED........................................................................................6-40
6.13.1 PAPER TRAY REMOVAL ............................................................6-40
Tandem Tray Removal .......................................................................6-40
Universal trays (Customer adjust/Technician adjust) Removal...........6-42
6.13.2 REAR FENCE RETURN SENSOR REPLACEMENT...................6-43
6.13.3 REAR FENCE HP SENSOR REPLACEMENT.............................6-44
6.13.4 BOTTOM PAPER SENSOR REPLACEMENT .............................6-45
6.13.5 BOTTOM PLATE LIFT WIRE REPLACEMENT ...........................6-46
6.13.6 TANDEM LCT PAPER SIZE CHANGE ........................................6-48
6.13.7 BY-PASS PAPER SIZE BOARD REPLACEMENT.......................6-51
6.13.13 PAPER FEED CLUTCH/RELAY CLUTCH REMOVAL...............6-53
6.13.9 BY-PASS FEED MOTOR/CLUTCH REMOVAL ...........................6-56
6.13.10 REGISTRATION MOTOR REMOVAL........................................6-57
6.13.11 PAPER TRAY UNIT REMOVAL.................................................6-58
6.9 FUSING UNIT..........................................................................................6-59
6.9.1 FUSING UNIT REMOVAL ..............................................................6-59
6.9.2 FUSING THERMISTOR/THERMOFUSE/THERMOSTAT
REPLACEMENT.............................................................................6-60
Fusing Thermistor Replacement.........................................................6-60
Fusing Thermofuse Replacement (for A292/A293 only) .....................6-60
Fusing Thermostat Replacement (for B0913 only) .............................6-61
Fusing Thermostat Replacement (for B0913 only) .............................6-61
6.9.3 FUSING LAMP REPLACEMENT ...................................................6-62
6.9.4 HOT ROLLER REPLACEMENT.....................................................6-63
6.9.5 OIL SUPPLY/CLEANING ROLLER REPLACEMENT ....................6-65
6.9.6 PRESSURE ROLLER CLEANING ROLLER REPLACEMENT ......6-66
6.9.7 MAGNET POSITION ADJUSTMENT .............................................6-67
6.9.13 HOT ROLLER STRIPPER PAWL REPLACEMENT.....................6-68
6.10 PAPER EXIT/DUPLEX UNIT.................................................................6-70
6.10.1 1ST AND 2ND EXIT SENSOR .....................................................6-70
6.10.2 JOGGER MOTOR ........................................................................6-71
6.10.3 DUPLEX ENTRANCE SENSOR ..................................................6-71
6.10.4 DUPLEX TRANSPORT/DUPLEX FEED CLUTCHES ..................6-72
6.10.5 DUPLEX TRANSPORT SENSOR 1 .............................................6-72
6.10.6 DUPLEX TRANSPORT SENSORS 2 & 3 ....................................6-73
SM vii A292/A293/B098
Page 20
Rev. 10/2002
6.10.7 INVERTER EXIT CLUTCH...........................................................6-74
6.10.13 DUPLEX INVERTER SENSOR..................................................6-74
6.11 BOARDS AND OTHER ITEMS .............................................................6-75
6.11.1 BICU BOARD ...............................................................................6-75
6.11.2 I/O BOARD ...................................................................................6-76
6.11.3 PSU ..............................................................................................6-77
6.11.4 PAPER FEED CONTROL BOARD (PFC) ....................................6-77
6.12 COPY IMAGE ADJUSTMENTS: PRINTING/SCANNING .....................6-78
6.12.1 PRINTING ....................................................................................6-78
Registration - Leading Edge ...............................................................6-78
Registration – Side-to-Side.................................................................6-78
Tray 1..................................................................................................6-79
Tray 2..................................................................................................6-79
Tray 3..................................................................................................6-80
By-pass Tray.......................................................................................6-80
TROUBLESHOOTING
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 ELECTRICAL COMPONENT DEFECTS ................................................7-46
7.2.1 SENSORS ......................................................................................7-46
7.2.2 SWITCHES.....................................................................................7-50
7.3 BLOWN FUSE CONDITIONS .................................................................7-51
FIRMWARE HISTORY
8. A292/A293 FIRMWARE MODIFICATION HISTORY .................. 8-1
3,000-SHEET FINISHER (B312/B586)
1. OVERALL MACHINE INFORMATION........................................ 9-1
1.1 SPECIFICATIONS.....................................................................................9-1
1.2 ELECTRICAL COMPONENT LAYOUT .....................................................9-4
1.3 ELECTRICAL COMPONENT DESCRIPTION...........................................9-6
1.4 MECHANICAL COMPONENT LAYOUT ...................................................9-8
1.5 DRIVE LAYOUT ........................................................................................9-9
2. DETAILED DESCRIPTIONS ..................................................... 9-10
2.1 TRAY AND STAPLER JUNCTION GATE MECHANISM ........................9-10
Upper tray mode.................................................................................9-10
Sort/stack mode..................................................................................9-10
Staple mode........................................................................................9-10
2.2 PRE-STACK MECHANISM .....................................................................9-11
2.3 JOGGER UNIT PAPER POSITIONING MECHANISM............................9-12
A292/A293/B098 viii SM
Page 21
Rev. 10/2002
Vertical Paper Alignment ....................................................................9-12
Horizontal Paper Alignment ................................................................9-12
2.4 STAPLER UNIT MOVEMENT MECHANISM ..........................................9-13
Side-to-side:........................................................................................9-13
Rotation: .............................................................................................9-13
2.5 STAPLER ................................................................................................9-14
2.6 FEED-OUT MECHANISM .......................................................................9-15
2.7 SHIFT TRAY UP/DOWN MECHANISM ..................................................9-16
2.13 SHIFT TRAY SIDE-TO-SIDE MECHANISM..........................................9-17
2.9 PUNCH UNIT DRIVE MECHANISM........................................................9-18
2.10 PUNCH WASTE COLLECTION MECHNISM........................................9-19
2.11 JAM CONDITIONS................................................................................9-20
3. SERVICE TABLES.................................................................... 9-21
3.1 DIP SWITCHES.......................................................................................9-21
3.2 TEST POINTS.........................................................................................9-21
3.3 FUSES ....................................................................................................9-21
4. REPLACEMENT AND ADJUSTMENT...................................... 9-22
4.1 COVER REPLACEMENT........................................................................9-22
Rear Cover .........................................................................................9-22
Upper Left Cover ................................................................................9-22
Upper Cover .......................................................................................9-22
Front Door...........................................................................................9-22
Left Front Cover..................................................................................9-22
Shift Tray ............................................................................................9-23
Lower Left Cover ................................................................................9-23
Right Cover.........................................................................................9-23
Front Shift Tray Cover.........................................................................9-23
Rear Shift Tray Cover .........................................................................9-23
4.2 POSITIONING ROLLER REPLACEMENT..............................................9-24
4.3 ALIGNMENT BRUSH ROLLER REPLACEMENT...................................9-25
4.4 SENSOR REPLACEMNT........................................................................9-26
4.4.1 STACK HEIGHT SENSOR 1 AND 2...............................................9-26
4.4.2 UPPER TRAY PAPER LIMIT AND EXIT SENSOR ........................9-27
Upper Tray Paper Limit Sensor ..........................................................9-27
Upper Tray Exit Sensor.......................................................................9-27
4.4.3 SHIFT TRAY EXIT SENSOR..........................................................9-28
4.4.4 ENTRANCE AND STAPLER TRAY ENTRANCE SENSOR...........9-29
Entrance Sensor .................................................................................9-29
Stapler Tray Entrance Sensor.............................................................9-29
4.4.5 STAPLER ROTATION HP SENSOR..............................................9-30
4.5 STAPLER REMOVAL..............................................................................9-31
4.6 PUNCH POSITION ADJUSTMENT.........................................................9-32
Right to left..........................................................................................9-32
Front to rear........................................................................................9-32
SM ix A292/A293/B098
Page 22
Rev. 10/2002
BOOKLET FINISHER A763
1. OVERALL MACHINE INFORMATION...................................... 10-1
1.1 SPECIFICATIONS...................................................................................10-1
1.2 ELECTRICAL COMPONENT DESCRIPTION.........................................10-3
1.3 MECHANICAL COMPONENT LAYOUT .................................................10-7
2. DETAILED DESCRIPTIONS ..................................................... 10-8
2.1 JUNCTION GATE MECHANISM.............................................................10-8
2.1.1 SHIFT TRAY MODE.......................................................................10-8
A4/LT sideways or shorter ..................................................................10-8
Longer than A4 sideways....................................................................10-8
2.1.2 PROOF TRAY MODE.....................................................................10-9
2.1.3 BOOKLET STITCH MODE.............................................................10-9
2.2 PRE-STACK MECHANISM ...................................................................10-10
2.3 PAPER SHIFT MECHANISM ................................................................10-11
2.4 PAPER POSITIONING MECHANISM...................................................10-12
2.5 STAPLER UNIT MOVEMENT MECHANISM ........................................10-13
2.5.1 DRIVE...........................................................................................10-13
2.5.2 MOVEMENT.................................................................................10-13
Front and Rear Stapling....................................................................10-13
Tow-position Stapling........................................................................10-13
2.6 STAPLER ..............................................................................................10-14
2.7 SHIFT TRAY MECHANISM...................................................................10-15
2.13 BOOKLET UNIT GATE MECHANISM.................................................10-16
2.9 RELAY ROLLER AND POSITIONING PLATE MECHANISM ...............10-18
2.10 POSITIONING ROLLER MECHANISM...............................................10-19
2.11 BOOKLET UNIT JOGGER MOVEMENT MECHANISM......................10-20
2.12 BOOKLET STAPLER UNIT.................................................................10-21
2.13 PAPER FOLDER MECHANISM..........................................................10-22
3. INSTALLATION ...................................................................... 10-24
3.1 ACCESSORY CHECK ..........................................................................10-24
3.2 INSTALLATION PROCEDURE .............................................................10-25
4. REPLACEMENT AND ADJUSTMENT.................................... 10-30
4.1 REMOVAL.............................................................................................10-30
4.1.1 UPPER DOOR .............................................................................10-30
4.1.2 UPPER REAR COVER.................................................................10-31
4.1.3 LOWER REAR COVER................................................................10-31
4.1.4 TOP COVER ................................................................................10-32
4.1.5 UPPER INNER COVER ...............................................................10-32
4.1.6 SHIFT TRAY UNIT .......................................................................10-33
4.1.7 UPPER SHIFT GUIDE..................................................................10-34
4.1.13 LOWER SHIFT GUIDE...............................................................10-34
4.1.9 EXIT UNIT ....................................................................................10-35
4.1.10 BUFFER ROLLER UNIT.............................................................10-36
4.1.11 STAPLER ...................................................................................10-37
A292/A293/B098 x SM
Page 23
Rev. 10/2002
4.1.12 FINISHER BOARD ....................................................................10-38
4.1.13 BOOKLET UNIT .........................................................................10-39
4.1.14 FOLDER ROLLERS ...................................................................10-41
4.1.15 FOLDER PLATE.........................................................................10-44
Removal............................................................................................10-44
Reinstalling .......................................................................................10-45
4.1.16 BOOKLET STAPLER UNIT........................................................10-46
Removal............................................................................................10-46
Adjustment........................................................................................10-47
4.1.17 BOOKLET BOARD.....................................................................10-49
4.1.113 POSITIONING PLATE UNIT ....................................................10-49
4.1.19 1ST AND 2ND BOOKLET UNIT GATES ....................................10-50
4.2 ADJUSTMENT ......................................................................................10-51
4.2.1 SHIFT TRAY HEIGHT ..................................................................10-51
4.2.2 JOGGER FENCE POSITION .......................................................10-52
4.2.3 STAPLING POSITOIN..................................................................10-53
4.2.4 BOOKLET STAPLING POSITION.................................................10-54
COPIER CONNECTION KIT B322
1. SPECIFICATIONS..................................................................... 11-1
2. DETAILED DESCRIPTIONS ..................................................... 11-2
2.1 OVERVIEW .............................................................................................11-2
2.2 BASIC OPERATION................................................................................11-3
2.2.1 NO SORT AND NO STAPLE MODE..............................................11-3
2.2.2 SORT, STAPLE MODE ..................................................................11-4
2.2.3 OPERATION IN IRREGULAR CONDITIONS.................................11-5
Paper end during copying ...................................................................11-5
Copy tray full.......................................................................................11-5
Paper jam ...........................................................................................11-5
LCT A698/B587
1. OVERALL MACHINE INFORMATION...................................... 12-1
1.1 SPECIFICATIONS...................................................................................12-1
1.2 MECHANICAL COMPONENT LAYOUT .................................................12-2
1.3 ELECTRICAL COMPONENT LAYOUT ...................................................12-3
1.4 ELECTRICAL COMPONENT DESCRIPTIONS ......................................12-4
1.5 DRIVE LAYOUT ......................................................................................12-5
2. DETAILED DESCRIPTIONS ..................................................... 12-6
2.1 PAPER FEED MECHANISM...................................................................12-6
2.2 TRAY LIFT MECHANISM........................................................................12-7
Tray lifting conditions ..........................................................................12-7
Tray lowering conditions .....................................................................12-7
2.3 PAPER STACK HEIGHT DETECTION ...................................................12-9
SM xi A292/A293/B098
Page 24
Rev. 10/2002
3. SERVICE TABLES.................................................................. 12-10
3.1 TEST POINTS.......................................................................................12-10
4. REPLACEMENT AND ADJUSTMENT.................................... 12-11
4.1 COVER REMOVAL ...............................................................................12-11
Tray Cover ........................................................................................12-11
Right Cover......................................................................................12-11
Front Cover.......................................................................................12-11
Upper Rear Cover.............................................................................12-11
Lower Rear Cover.............................................................................12-12
Feed Unit Cover................................................................................12-12
4.2 ROLLER REPLACEMENT ....................................................................12-13
4.2.1 PAPER FEED, SEPARATION, AND PICK-UP ROLLERS ...........12-13
Pick-up Roller ...................................................................................12-13
Paper Feed Roller.............................................................................12-13
Separation Roller..............................................................................12-13
4.3 PAPER END SENSOR REPLACEMENT..............................................12-14
4.4 PAPER FEED SENSOR REPLACEMENT............................................12-15
4.5 PAPER POSITION SENSOR REPLACEMENT ....................................12-16
4.6 PICK-UP SOLENOID REPLACEMENT.................................................12-17
4.7 LIFT MOTOR REPLACEMENT.............................................................12-18
4.13 SIDE FENCE POSITION CHANGE.....................................................12-19
3,000-SHEET FINISHER B302
1. OVERALL MACHINE INFORMATION...................................... 13-1
1.1 SPECIFICATIONS...................................................................................13-1
1.2 MECHANICAL COMPONENT LAYOUT .................................................13-3
1.3 ELECTRICAL COMPONENT DESCRIPTION.........................................13-4
1.4 DRIVE LAYOUT ......................................................................................13-6
2. DETAILED DESCRIPTIONS ..................................................... 13-7
2.1 TRAY AND STAPLER JUNCTION GATE ...............................................13-7
Upper Tray Mode................................................................................13-7
Sort/Stack Mode .................................................................................13-7
Staple Mode........................................................................................13-7
2.2 PAPER PRE-STACKING ........................................................................13-8
2.3 JOGGER UNIT PAPER POSITIONING ..................................................13-9
Vertical Paper Alignment ....................................................................13-9
Horizontal Paper Alignment ................................................................13-9
Paper Stack Correction.......................................................................13-9
2.4 STAPLER UNIT MOVEMENT ...............................................................13-10
Side-to-Side ......................................................................................13-10
Rotation (1) .......................................................................................13-11
Rotation (2) .......................................................................................13-11
2.5 STAPLER ..............................................................................................13-12
2.6 FEED-OUT ............................................................................................13-14
2.7 SHIFT TRAY UP/DOWN MOVEMENT..................................................13-15
A292/A293/B098 xii SM
Page 25
Rev. 10/2002
2.13 SHIFT TRAY SIDE-TO-SIDE MOVEMENT .........................................13-16
2.9 PUNCH UNIT DRIVE ............................................................................13-17
2.10 PUNCH WASTE COLLECTION ..........................................................13-18
2.11 JAM CONDITIONS..............................................................................13-19
3. SERVICE TABLES.................................................................. 13-20
3.1 DIP SWITCHES.....................................................................................13-20
3.2 TEST POINTS.......................................................................................13-20
3.3 FUSES ..................................................................................................13-20
4. REPLACEMENT AND ADJUSTMENT.................................... 13-21
4.1 COVER REPLACEMENT......................................................................13-21
Front Door.........................................................................................13-21
Left Inner Cover ................................................................................13-21
Inner Cover.......................................................................................13-21
Table.................................................................................................13-22
Upper Tray........................................................................................13-22
Left Upper Cover ..............................................................................13-22
Left Lower Cover...............................................................................13-22
Upper Cover .....................................................................................13-22
Rear Cover .......................................................................................13-22
Shift Tray ..........................................................................................13-23
Front Shift Tray Cover.......................................................................13-23
Rear Shift Tray Cover .......................................................................13-23
4.2 POSITIONING ROLLER REPLACEMENT............................................13-24
4.3 ALIGNMENT BRUSH ROLLER REPLACEMENT.................................13-25
4.4 SENSOR REPLACEMENT ...................................................................13-26
4.4.1 STACK HEIGHT 1, 2 AND EXIT GUIDE OPEN SENSOR ...........13-26
Stack Height Sensors 1 and 2 ..........................................................13-26
Exit Guide Open Sensor ...................................................................13-26
4.4.2 UPPER TRAY PAPER LIMIT AND EXIT SENSOR ......................13-27
Upper Tray Paper Limit Sensor ........................................................13-27
Upper Tray Exit Sensor.....................................................................13-27
4.4.3 SHIFT TRAY EXIT SENSOR........................................................13-28
4.4.4 ENTRANCE AND STAPLER TRAY ENTRANCE SENSORS ......13-29
Entrance Sensor ...............................................................................13-29
Stapler Tray Entrance Sensor...........................................................13-29
4.4.5 PRE-STACK STOPPER SENSOR...............................................13-30
4.4.6 STAPLE WASTE HOPPER SENSOR ..........................................13-31
4.4.7 STAPLER ROTATION HP AND STAPLER RETURN SENSORS 13-32
Stapler Rotation HP Sensor..............................................................13-32
Stapler Return Sensor ......................................................................13-32
4.5 STAPLER REMOVAL............................................................................13-33
4.6 PUNCH POSITION ADJUSTMENT.......................................................13-34
Right to Left ......................................................................................13-34
Front to Rear.....................................................................................13-34
SM xiii A292/A293/B098
Page 26
Page 27
!
IMPORTANT SAFETY NOTICES
PREVENTION OF PHYSICAL INJURY
1. Before disassembling or assembling parts of the copier and peripherals,
make sure that the copier power cord is unplugged.
2. The wall outlet should be near the copier and easily accessible.
3. Note that some components of the copier and the paper tray unit are
supplied with electrical voltage even if the main power switch is turned off.
4. If any adjustment or operation check has to be made with exterior covers off
or open while the main switch is turned on, keep hands away from electrified
or mechanically driven components.
5. If the Start key is pressed before the copier completes the warm-up period
(the Start key starts blinking red and green alternatively), keep hands away
from the mechanical and the electrical components as the copier starts
making copies as soon as the warm-up period is completed.
6. The inside and the metal parts of the fusing unit become extremely hot while
the copier is operating. Be careful to avoid touching those components with
your bare hands.
HEALTH SAFETY CONDITIONS
1. Never operate the copier without the ozone filters installed.
2. Always replace the ozone filters with the specified ones at the specified
intervals.
3. Toner and developer are non-toxic, but if you get either of them in your eyes
by accident, it may cause temporary eye discomfort. Try to remove with eye
drops or flush with water as first aid. If unsuccessful, get medical attention.
OBSERVANCE OF ELECTRICAL SAFETY STANDARDS
1. The copier and its peripherals must be installed and maintained by a
customer service representative who has completed the training course on
those models.
2. The NVRAM on the system control board has a lithium battery which can
explode if replaced incorrectly. Replace the NVRAM only with an identical
one. The manufacturer recommends replacing the entire NVRAM. Do not
recharge or burn this battery. Used NVRAM must be handled in accordance
with local regulations.
1
Page 28
1. SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL
Do not incinerate toner bottles or used toner. Toner dust may ignite
suddenly when exposed to an open flame.
2. Dispose of used toner, developer, and organic photoconductors in
accordance with local regulations. (These are non-toxic supplies.)
3. Dispose of replaced parts in accordance with local regulations.
4. When keeping used lithium batteries in order to dispose of them later, do not
put more than 100 batteries per sealed box. Storing larger numbers or not
sealing them apart may lead to chemical reactions and heat build-up.
LASER SAFETY
The Center for Devices and Radiological Health (CDRH) prohibits the repair of
laser-based optical units in the field. The optical housing unit can only be repaired
in a factory or at a location with the requisite equipment. The laser subsystem is
replaceable in the field by a qualified Customer Engineer. The laser chassis is not
repairable in the field. Customer engineers are therefore directed to return all
chassis and laser subsystems to the factory or service depot when replacement of
the optical subsystem is required.
!
WARNING
Use of controls, or adjustment, or performance of procedures other than
those specified in this manual may result in hazardous radiation exposure.
!
WARNING
WARNING: Turn off the main switch before attempting any of the
procedures in the Laser Unit section. Laser beams can seriously damage
your eyes.
CAUTION MARKING:
2
Page 29
OVERALL INFORMATION A292/A293/B098
Rev. 10/2002
3,000 SHEET FINISHER B312/B586
DETAILED DESCRIPTIONS A292/A293/B098
BOOKLET FINISHER A763
INSTALLATION A292/A293/B098
COPIER CONNECTION KIT B322
SERVICE TABLES A292/A293/B098
LCT A698/B587
TAB
POSITION 1
TAB
POSITION 2
TAB
POSITION 3
TAB
POSITION 4
PREVENTIVE MAINTENANCE A292/A293/B098
3,000 SHEET FINISHER B302
REPLACEMENT AND ADJUSTMENT A292/A293/B098
TROUBLESHOOTING A292/A293/B098
FIRMWARE HISTORY A292/A293/B098
TAB
POSITION 5
TAB
POSITION 6
TAB
POSITION 7
TAB
POSITION 8
Page 30
Page 31
COMPARISON BETWEEN
A292/A293 AND A229
Page 32
Page 33
DIFFERENT POINTS
SECTION 1: OVERALL INFORMATION
Section Item Description Page
Specifications
Copy Size Minimum: A5/5
1/2
Zoom Minimum: 25% (A229: 32%) 1-2
Copying Speed 70/55 cpm (A229: 65/55 cpm) 1-2
1 to 1 Copying
Speed with ADF
70 cpm (A229: 50 cpm)
ARDF: New A294
Resolution Scanning: 600 dpi (A229: 400 dpi)
Printing: 600 dpi (A229: 400 dpi)
First Copy Time Face Up: 3.5 seconds, Face Down: 5.3 seconds
(A229: Face Up: 3.7 seconds, Face Down: 5.5
seconds)
Copy Paper
Capacity
Tray 1: 3,100 sheets (A229: 1,000 sheets)
Tray 3: 550 sheets (A229: 1,500 sheets)
Memory Capacity RAM: 48 MB (A229: 12 MB)
HDD: 4.3 GB (A229: 1.7 GB)
Power
(Refer to service manual) 1-3
Consumption
Additional Feature Document Server function is available as a
standard function.
Additional Feature User Stamp, etc. N/A
Peripherals Finisher (B312): Pre-stack function
Finisher (A763):
Folds paper in half with 2 staples
Finisher (B302):
Pre-stack function, 100 sheets for staple
Punch Unit (for B312 B302, A812):
2 holes (80 mm / 6.5 mm) (Same as A229)
3 holes (108-108 mm / 8 mm) (Same as A229)
4 holes (21-70-21 mm / 6.5 mm) (New)
4 holes (80-80-80 mm / 6.5 mm) (New)
2 holes (70 mm / 8 mm) (New)
LCT (A698): Upgraded version
Copy Connector Unit (B322)
Output Tray (B333)
Tab Sheet Holder (B373)
8
" x 14" Size Kit (B375)
1/2
Consumable
New Toner (NA: Type 5105D, EU/Asia: Type
5205D)
New Developer (Type 15)
Toner Particle: 9.5 µm (A229: 7.5 µm)
" x 8
1/2
" Lengthwise in 2nd Tray 1-1
N/A
1-2
1-2
1-2
N/A
N/A
1-4
2-49
SM 1 A292/A293
Page 34
DIFFERENT POINTS
SECTION 2: DETAILED DESCRIPTIONS
Section Item Description Page
Scanning Overview
Laser
Exposure
Process
Control
Overview
Image Density
Control
• The number of exposure lamp is one. (A229: 2
lamps)
• The CCD is changed to 4-channel type because
of a higher processing speed. (A229: 2 channels)
• A reflector is added to 1st scanner.
• The Scanner Motor has been changed to a DC
Servo type because of a higher processing
speed.
• The location of Lamp Regulator moves onto the
1st scanner.
• The LD unit and Polygon Motor have been
changed because of a higher processing speed.
• The method controlling the LD has been changed
because the standard resolution has been
changed from 400 dpi to 600 dpi.
The toner amount in the development unit is
updated using Vsp/Vsg data in addition to the Vref
update.
2-13
N/A
2-36
Drum Unit Drum Flange The holes for airflow have been added to Drum
Flange to make cooling power up because of higher
processing speed.
Rotation Speed 362 mm/s (A229: 330 mm/s)
This is because a higher copying speed.
Development
Corona Wire
Cleaner
Cleaning Brush
Cleaning Blade
Side-to-Side
Movement
Toner Supply
Control
ID Sensor Pattern The pattern has become darker to increase
One of the conditions making the cleaner start
moving “only if the fusing temperature is lower than
100°C” has not been used any more because the
other condition “only when 5000 or more copies
have been made since the last movement” is
effective enough to function.
• The turning direction of the brush has been
changed to the counter direction to increase the
cleaning ability.
• The brush has been changed from a rope type to
a straight type. A rope type scrapes off the drum
surface too much because of the change of the
turning direction.
The location of the cam gear is changed onto the
main frame to increase reliability.
TBA N/A
reliability of toner supply control.
2-47
N/ADrum Unit
2-43
2-44Cleaning
2-46
N/A
Lower
Development
Roller
A292/A293 2 SM
The shaft of the roller does not turn.
It is not necessary to lubricate conductive grease on
the shaft.
N/A
Page 35
Rev. 08/2000
DIFFERENT POINTS
Section Item Description Page
Transfer
Paper
Feed
Toner
Recycling
Fusing
Paper
Exit/Duplex
Ozone
Filter
Transfer Belt The surface treatment has been changed to
increase cleaning ability.
Cleaning Bias
Roller
Bushing A bearing has been added to the bushing to make
Gear The gear has been changed to a diagonal type with
Transfer Current 1st Copy (Front): 65µA (A229: 60µA)
Torque Limitter The type of the Torque Limitter has been changed
Paper size setting
in 2nd tray
By-pass Tray
Switch
Paper Feed Mode
Condition of “Full
Toner Collection
Bottle”
Inner Cover The grip and the jam removal decal have been
Fusing Sensor The Fusing Sensor has been added to detect a
Inverter Exit
Clutch
Duplex Inverter
Sensor
Jogger Start
Timing
The nylon tube has been added as the surface of
the cleaning bias roller to increase the cleaning
ability.
This allows to increasing the maximum charging
voltage up to 1000 V (A229: 330 V).
the movement smoother.
the color of black to decrease a jitter level.
2nd Copy (Front): 65µA (A229: 60µA)
By-pass Tray (Front): 75µA (A229: 70µA)
Post Card (Front): 165µA (A229: 150µA)
This is because of a higher drum rotation speed.
from a non-contact magnet type to a metal powder
type to increase reliability.
The paper size setting can be done at the front side
of the tray for easier operation.
The By-pass Tray Switch has been deleted. The bypass tray indicator is always on the operation panel
and turns on when paper is placed in the tray.
The thick paper mode is used for any paper type in
all paper feed stations to increase paper
transportation ability.
The number of copies, which can be made after the
toner overflow switch is activated and the “full toner
collection bottle” indication lights, becomes only “up
to 100 copies”. The other one “the copy job is
allowed to end” is not effective any more.
changed.
The procedure of jammed paper removal has also
been changed.
jammed paper with an accordion shape.
The Inverter Exit Clutch has been added to stop a
paper coming into the duplex unit for a while.
This is to keep the maximum productivity of printing
even when it takes a longer time for image
processing for a paper coming out of the duplex
unit.
When the clutch is ON, paper stops.
The Inverter Exit Sensor has been added to control
the ON/OFF timing of the Inverter Exit Clutch.
The Jogger Fences start moving 83 ms after the
trailing edge of paper passes the Duplex Entrance
Sensor. (A229: 100 ms)
An inlet is added to change the airflow direction of
the exhaust fan to downward. This is to increase the
cooling ability and decrease the ozone smell level.
The shape of the rear cover has been changed.
N/A
N/A
N/A
2-58
SP
2-301
N/A
2-72
N/A
N/A
N/A
N/A
2-73
N/A
2-79
N/A
N/A
SM 3 A292/A293
Page 36
DIFFERENT POINTS
Section Item Description Page
Electrical
Components
BICU Board
I/O Board
• Scanner control circuit has been independent
from SBICU as MCU (Motor Control Unit) and
Scanner Motor Drive Board is deleted.
The name of SBICU is changed to BICU.
This is because the Scanner Motor has been
changed from a stepper motor to a servomotor to
enable the copying speed in the ADF 1 to 1 mode
to be 70 cpm.
• The exposure lamp, APS sensor and scanner HP
sensor are also connected to the MCU.
The RDS function has been independent from
the I/O board as RDS Board and has been
controlled by the BICU board because of the
following reasons:
1. The I/O board can completely turn off in the
weekly timer off mode.
2. It has been possible that only the RDS board is
replaced.
PSU A 38V output has been added for the scanner motor
that is changed from a stepper motor to a servomotor.
CNB
(Connector
Board)
This is a new name of the Interface Board
which the functions for the registration motor,
by-pass motor and development motor are
deleted from.
Those functions are on the DRB (Driver Board) as a
new board.
This is to reduce the harnesses used.
12V Power
Supply Board
DRB
(Driver Board)
The DC/DC converter has been deleted and its
function has moved to the PSU.
This is an interface board for the signal lines of
the registration motor, by-pass motor and
development motor.
The power line for each motor is connected to the
CNB.
Copy Connect
Board
Printer Controller
The connection between the BICU and Copy
Connect Board has been changed from via the FCC
cable to via the interface board.
This is to make installation easier.
The connection between the BICU and Printer
Controller has been changed from only via the
FCC cable to via the interface board and the
FCC cable.
This is to make installation easier.
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
A292/A293 4 SM
Page 37
DIFFERENT POINTS
SECTION 3: INSTALLATION
Section Item Description Page
Installation
Procedure
Installation
Procedure
Finisher
(B302, B312)
Output Tray
• The caps on the upper left cover of the copier
have not been equipped, so that it is not
necessary to remove them when a finisher is
installed.
• New type of grounding bracket.
• A cavity has been made in each Paper Exit Roller
and a plug is prepared beside each roller on the
shaft. The plugs are necessary to be inserted into
the cavities.
• The caps on the upper left cover have become
accessories of the Output Tray and are
necessary to be installed.
• The stack height sensors at the paper exit area
have become accessories of the Output Tray and
are necessary to be installed.
3-22
3-29
SM 5 A292/A293
Page 38
DIFFERENT POINTS
SECTION 4.2.2.: SERVICE PROGRAM MODE TABLE
Mode
No.
1-901 CPM change for thick
paper
2-001-3 Charge Corona Bias
Adjustment
2-201-2 ID Sensor Pattern Factory setting: -400 V (A229: -440 V) 4-14
2-201-3 OHP Sheet Factory setting: -300 V (A229: -550 V) 4-15
2-201-4
2-210 ID Sensor Interval Factory setting: 10 copies (A229: 50 copies) 4-15
2-220 V
2-301-1
2-301-2 Transfer Current
2-301-3 Transfer Current
2-301-4 Transfer Current
2-301-6
2-801 TD Sensor Initial Setting
2-902-4
2-902-5
2-906-2 Vcont Manual Setting This function is new. 4-18
2-962 Auto Process Control
2-963 Toner Supply From
2-966 Periodical Auto Process
2-967 Auto Image Density
2-970 Transfer Belt Resistance
2-971 Output Value Measured
3-001-2 ID Sensor PWM Setting
3-902-7
4-015 Scanner Speed
4-902 SBU Setting All the functions in SP4-901-X are shifted to
Development
Performance
REF
Transfer Current
Adjustment
Adjustment
Adjustment
Adjustment
Transfer Current
Adjustment
Printing Test Pattern These functions are new. 4-17
Toner Bottle
Control
Adjustment
Value Display
Between Copies
Process Control Data
Display
Adjustment
Mode Description Page
The setting range is changed from 0 to 2 to 0
to 3 as follows:
0: None
1: 55 cpm at 165°C (A229: 50 cpm)
2: 45 cpm at 165°C (A229: 45 cpm)
3: 35 cpm (newly added)
Factory setting: -1300 µA (A229: -1200 µA)
This is because the copy speed is increased.
Factory setting: -280 V (A229: -320 V) 4-15
Manual Setting Factory setting: 3.0 V or 2.5 V (A229:2.5 V) 4-15
Factory setting: 65 µA (A229: 60 µA)
This is because the copy speed is increased.
Factory setting: 65 µA (A229: 60 µA)
This is because the copy speed is increased.
Factory setting: 75 µA (A229: 70 µA)
This is because the copy speed is increased.
Factory setting: 165 µA (A229: 150 µA)
This is because the copy speed is increased.
This function is new. 4-16
This function can also be performed in the Wait
condition.
This function can also be performed in the Wait
condition.
This function can also be performed in the Wait
condition.
This function is new. 4-20
This function is new. 4-20
This function is new. 4-20
This function is new. 4-20
This function can also be performed in the Wait
condition.
This function is new. 4-21
This function is new. 4-22
SP4-902-X.
4-12
4-12
4-16
4-16
4-16
4-16
4-17
4-19
4-19
4-20
4-23
to 4-27
A292/A293 6 SM
Page 39
DIFFERENT POINTS
Mode
No.
5-824 Upload NVRAM Data This function is new. 4-50
5-825 Download NVRAM Data This function is new. 4-50
5-826 Program Upload This function is new. 4-50
5-829 Stamp Data Download This function is new. 4-50
5-921 Stamp Data Download This function is new. 4-51
5-922 Counter Operation
Setting
5-923 Edge Erase Standard This function is new. 4-51
5-954 Copy Server password
Display
5-965
6-116 Thick Paper Count This function is new. 4-53
6-801 Copy Connect I/F Test This function is new. 4-53
6-901 Original Exchange Time
6-902
7-304-24
7-304-25
7-304-26
7-330 Connect Copy Job This function is new. 4-58
7-331 Connect Copy: Copy This function is new. 4-58
7-332
7-333
7-504-35
to
7-504-40
7-808 Counters Reset The counters which are reset: SP7-003, SP7-
7-830 Copy Counter by Paper
All Copy Server File
Delete
Adjustment
Saddle Stitch
Adjustment
Total Copies By Copy
Mode
Connect Copy: Copy
Number by Copy Mode
Copy Jam Counter by
Jam Location
Size
Mode Description Page
This function is new. 4-51
(A229: SP5-940) 4-51
This function is new. 4-51
This function is new. 4-53
This function is new. 4-53
These functions are new. 4-56
These functions are new. 4-58
4-59
These functions are new. 4-61
4-64
006, SP7-206 and SP7-101-132 (A229: SP7003, SP7-006 and UP1-19-2)
This function is new. 4-64
SM 7 A292/A293
Page 40
DIFFERENT POINTS
SECTION 4.2.4: INPUT CHECK
Class 3 no.
9
(Motor Lock
/Transport)
12
(LCT2)
13
(By-pass)
14
Bit
no.
7 Drum Motor Lock Overload Normal
6 By-pass Feed Motor Lock Overload Normal
5 Development Motor Lock Overload Normal
4 Fusing Motor Lock Overload Normal
3 LD Unit Home position
Sensor
2 Fusing Sensor Paper
1 Exit Sensor Paper detected No paper
0 Tray Paper Limit Sensor Not full Full
7 Fusing Cooling Fan Motor
Lock
6 Not Used
5 Front Door Safety Switch Closed Open
4 Not Used
7 LCT Paper Position Sensor Detected Not detected
6 Toner End Sensor Toner End Not toner end
5 Not Used
4 Relay Sensor Paper detected No paper
3 By-pass Paper End Sensor Not paper end Paper end
2 Registration Sensor Paper detected No paper
1 Not Used
0 Not Used
7 Inverter Exit Sensor Detected Not detected
Description
Detected Not detected
detected
Overload Normal
Reading
01
No paper
(Unit Set) 6 Not used
5 Key Counter Set Set Not set
4 Total Counter Set Set Not set
3 Polygon Motor Cooling Fan
Lock
2 Toner Recycling Sensor Pulse Pulse
1 Drum Unit Set Set Not set
0 Fusing Unit Set Set Not set
No lock Lock
SECTION 4.2.5: OUTPUT CHECK
No. Description No. Description
47 Inverter Exit Clutch 71
72 73
74 77
78 79
A292/A293 8 SM
Page 41
SECTION 5.1: PM TABLE
DIFFERENT POINTS
150K300K450
EM
SCANNER/OPTICS
1st, 2nd, 3rd Mirror C C C Optics cloth
Reflectors C C C Optics cloth (Newly added)
White Reference Plate I I I Water (Newly added)
Scanner Guide Rails C C C Dry cloth
Exposure Glass C C C C Dry cloth or alcohol
Toner Shield Glass C C C Optics cloth
Optics Dust Filter I R I Blower brush
AROUND THE DRUM
Charge Corona Wire C C C 300K Dry Cloth
Charge Corona Casing C C C Damp cloth
Corona Wire Cleaner C C C 300K A229: 150K-Cleaning
Drum Potential Sensor C C C Blower brush
Charge Corona Grid C C C 300K Blower brush
ID Sensor C C C Blower brush; initialize with
Quenching Lamp C C C Dry cloth
Pick-off Pawls C C C Dry cloth
Cleaning Blade 300K A229: 150K-Replacement
Cleaning Brush 300K A229: 300K-Replacement
Cleaning Brush Seal C Dry cloth
Cleaning Side Seals I I I Dry cloth
Cleaning Entrance Seal C C C Dry cloth
K
Expected
Life
NOTE
A229: 150K-Replacement
A229: 150K-Cleaning
SP3-001-2 after cleaning.
Replace if necessary.
Replace if necessary
DEVELOPMENT UNIT
“Development Roller Shaft (Lower)” is deleted. (A229: 150K-Lubricate)
Developer R
Side Seals I I I Dry cloth or blower brush
Development Filter R R R
Entrance Seal C C C Dry cloth or blower brush
Air Filter – Large/ Small R R R
Drive Gears C C C Blower brush
Toner Bottle Holder C C C Dry cloth or vacuum cleaner
Toner Hopper Entrance C C C Dry cloth
Development Roller Shaft C C C Dry cloth or blower brush
SM 9 A292/A293
Page 42
DIFFERENT POINTS
150K300K450
EM
PAPER FEED
Registration Rollers C C C Water or alcohol
Relay Rollers C C C Water or alcohol
Paper Dust Remover C C C Dry cloth
Registration Sensor C C C Blower brush
Relay Sensor C C C Blower brush
Paper Feed Rollers C C C 300K Replace pick-up, feed and
Paper Feed Guide Plate C C C Water or alcohol
Vertical Transport Rollers C C C Water or alcohol
Paper Feed Sensor C C C Blower brush
TRANSFER BELT UNIT
Transfer Belt C C C 450K Dry cloth
Cleaning Roller Cleaning
Blade
Transfer Entrance Guide
Plate
Belt Drive/Guide/
Bias Roller/Cleaning
Roller
Transfer Exit Guide Plate C C C Dry cloth
CCC Dry cloth
C C C Alcohol
Expected
K
C 450K A229: 300K-Replacement
Life
separation roller as a set.
Check the counter value for
each paper tray station
(SP7-204). If the value has
reached 300K, replace the
rollers. After replacing the
rollers, reset the counter
(SP7-816).
A229: 150K-Replacement
A229: 300K-Replacement
A229: 300K-Cleaning
NOTE
FUSING/PAPER EXIT
“Pressure Roller Cleaning Brush” (EU/Asia only) is deleted. (A229: 150K-Replacement)
Hot Roller I I I 200K A229: 150K-replacement
Hot Roller Bearings I I I 600K A229: Replace if necessary
Pressure Roller I I I 450K
Pressure Roller Bearings I I I 450K
Fusing Thermistor I I I I Replace if necessary
Hot Roller Strippers C C C C 300K Water or alcohol
Oil Supply Roller Bushings I I I I Replace if necessary
Pressure Roller Cleaning
Roller and Bushings
Oil Supply Roller R R R
Oil Supply Cleaning Roller R R R
Fusing Entrance and Exit
Guide Plates
Transport/Exit Rollers C Water
Exit Anti-static Brush I A229:150K-Inspection
R R R Replace as a set
C C C Clean with water or alcohol
Replace as a set.
A229: 300K-replacement
A229: 300K-replacement
Replace as a set
A292/A293 10 SM
Page 43
DIFFERENT POINTS
150K300K450
EM
DUPLEX
Entrance Sensor C C C Blower brush
Reverse Roller C C C Water or alcohol
Separation Rollers C C C
Duplex Roller C C C
Feed Rollers C C C
Entrance Anti-static
Brush
Reverse Junction Gate C C C Dry cloth
OTHERS
Ozone Filter: PCU R
Ozone Filter: Duct R Newly added
Filter: Vacuum R R R Newly added
Used Toner Tank I I I I
ADF (the PM interval is for the number of originals that have been fed)
Transport Belt CRRRBelt cleaner
Feed Belt CRRRBelt cleaner
Separation Roller CRRRDry or damp cloth
Pick-up Roller CRRRDry or damp cloth
Sensors CCCCBelt brush
Drive Gears L L L Grease G501
III
EM 80K 160K 240K NOTE
K
Expected
Life
NOTE
Clean or Replace if
necessary (about 1,000K
copies).
A229:1,500K-Inspection
150K300K450KExpected
EM
LCT
Paper Feed Roller C C C 300K
Pick-up Roller C C C 300K
Separation Roller C C C 300K
Bottom Plate Pad C C C Dry or damp cloth
Paper Feed Clutch 1,200K A229: 1,500K-Replacement
Relay Clutch 1,200K A229: 1,500K-Replacement
Pick-up Solenoid 2,400K A229: 1,500K-Replacement
SM 11 A292/A293
Life
Check the counter value for
the LCT (SP7-204-5). If the
value has reached 200K,
replace the rollers. After
replacing the rollers, reset
the counter (SP7-816-5).
A229: 150K-Replacement
NOTE
Page 44
DIFFERENT POINTS
150K300K450KExpected
EM
3,000-SHEET FINISHER (50-SHEET STAPLER): B312
Rollers C C C C Clean with water or alcohol.
Brush Roller I I I I 2,400K A229: Replace if necessary.
Discharge Brush C C C C Clean with a dry cloth.
Sensors C C C C Blower brush
Jogger Fences I I I I Replace if necessary.
Punch Waste Hopper I I I I Empty the hopper.
150K300K450KExpected
EM
3,000-SHEET FINISHER (100-SHEET STAPLER): B302
Rollers C C C C Clean with water or alcohol.
Brush Roller I I I I 2,000K
Discharge Brush C C C C Clean with a dry cloth.
Sensors C C C C Blower brush
Jogger Fences I I I I Replace if necessary.
Punch Waste Hopper I I I I Empty the hopper.
Life
Life
Check the counter value for
the total copies by copy mode
for staple (SP7-304-6). If the
value has reached 600K,
replace the brush roller.
NOTE
NOTE
150K300K450KExpected
EM
BOOKLET FINISHER: A763
Rollers C C C C Clean with water or alcohol.
Brush Roller I I I I
Discharge Brush C C C C Clean with a dry cloth.
Sensors C C C C Blower brush
Jogger Fences I I I I Replace if necessary.
Punch Waste Hopper I I I I Empty the hopper.
Life
NOTE
A292/A293 12 SM
Page 45
DIFFERENT POINTS
SECTION 7: TROUBLESHOOTING
Section Item Description Page
Service
Call
Conditions
SC124 Scanner motor encoder signal error (New) 7-3
SC125 Scanner motor speed error 1 (New) 7-3
SC126 Scanner motor speed error 2 (New) 7-3
SC127 Scanner motor encoder rotating direction error (New) 7-3
SC128 Scanner motor start error (New) 7-4
SC129 Scanner motor speed control error (New) 7-4
SC130 SBU error (New) 7-4
SC300 Charge corona output error 1 (A229: SC302-01) 7-5
SC301 Charge corona output error 2 (A229: SC302-02) 7-5
SC302 Charge corona output error 3 (A229: SC302-03) 7-5
SC303 Charge corona output error 4 (A229: SC302-04) 7-5
SC305 Charge corona wire cleaner error 1 (A229: SC303-01) 7-5
SC306 Charge corona wire cleaner error 2 (A229: SC303-02) 7-6
SC310 Potential sensor error 1 (A229: SC370-01) 7-6
SC311 Potential sensor error 2 (A229: SC370-02) 7-6
SC312 Potential sensor error 4 (A229: SC370-04) 7-7
SC314 Potential sensor error 5 (A229: SC370-05) 7-7
SC329 LD unit home position error 3 (A229: SC329) 7-9
SC330 LD unit no initial setting (A229: SC329) 7-9
SC331 LD unit home position error 4 (A229: SC329) 7-10
SC332 LD unit present position error (A229: SC329) 7-10
SC335 Polygonal mirror motor error 1 (A229: SC320) 7-10
SC336 Polygonal mirror motor error 2 (A229: SC320) 7-11
SC337 Polygonal mirror motor error 3 (A229: SC320) 7-11
SC338 Polygonal mirror motor error 1 (A229: SC320) 7-11
SC340 TD sensor output error (A229: SC390-01) 7-12
SC341 TD sensor adjustment error 1 (A229: SC390-02) 7-12
SC342 TD sensor adjustment error 2 (A229: SC390-03) 7-13
SC345 Development bias leak (A229: SC391) 7-13
SC350 ID sensor error 1 (A229: SC350-01) 7-13
SC351 ID sensor error 2 (A229: SC350-02) 7-14
SC352 ID sensor error 3 (A229: SC350-03) 7-14
SC353 ID sensor error 4 (A229: SC350-04) 7-15
SC354 ID sensor error 5 (A229: SC350-05) 7-15
SC360 Hard disk detection error 1 (A229: SC360) 7-15
SC362 Hard disk detection error 2 (A229: SC360) 7-16
SC364 Hard disk drive error (A229: SC361) 7-16
SC366 Hard disk bad sector maximum (New) 7-16
SC367 Hard disk (HDD:R) bad sector maximum (New) 7-16
SC370
SC372
SC374
SC376 Data transmission error (A229: SC363) 7-17
SC380 Data transmission time out (video input) (New) 7-18
SC382 Data transmission time out (video output) (New) 7-18
SC384 Data transmission time out (connect copy) (A229: SC364) 7-18
SC386 Data transmission time out (Hard disk write) (New) 7-18
SC388 Data transmission time out (Hard disk read) (New) 7-18
SC390 CRC error (A229: SC366) 7-19
IMAC (image compression IC) input FIFO error (A229: SC362)
IMAC (image compression IC) output FIFO error (A229: SC362)
IMAC (image compression IC) modes setting error (A229: SC362)
7-17
7-17
7-17
SM 13 A292/A293
Page 46
DIFFERENT POINTS
Section Item Description Page
Service
Call
Conditions
SC391 Image storage address error (A229: SC365) 7-19
SC400 Transfer roller leak error (A229: SC401-01) 7-19
SC401 Transfer roller open error (A229: SC401-02) 7-19
SC493 Exhaust fan motor lock (New) 7-20
SC494 Fusing exhaust fan motor lock (New) 7-20
SC501 1st tray lift malfunction (A229: SC501) 7-21
SC502
SC503
2nd tray lift malfunction (A229: SC502)
3rd tray lift malfunction (A229: SC503)
SC505 LCT tray malfunction (optional LCT) (A229: SC510) 7-22
SC510 Paper feed motor lock (A229: SC506) 7-22
SC511 LCT motor lock (optional LCT) (A229: SC507) 7-23
SC515 Tandem rear fence motor error (A229: SC508) 7-23
SC516 Tandem side fence motor error (A229: SC511) 7-23
SC520 Duplex jogger motor error 1 (A229: SC521-1) 7-23
SC521 Duplex jogger motor error 2 (A229: SC521-2) 7-24
SC543 Fusing overheat error 1 (software) (A229: SC543) 7-25
SC544 Fusing overheat error 1 (hardware) (A229: SC543) 7-25
SC546 Fusing temperature stability error (A229: SC546) 7-26
SC547 Zero cross signal malfunction (A229: SC547) 7-26
SC620
SC621
SC622
SC625
SC626
SC635
SC636
Communication error between BICU and ADF 1 (A229: SC620-1)
Communication error between BICU and ADF 2 (A229: SC620-2)
Communication error between BICU and ADF 3 (A229: SC620-3)
Communication error between BICU and finisher 1 (A229: SC621)
Communication error between BICU and finisher 2 (A229: SC621)
Communication error between BICU and paper feed board 1
(A229: SC623)
Communication error between BICU and paper feed board 2
(A229: SC623)
SC650 Key card error 1 (Japan only) SC651 Key card error 2 (Japan only) SC652 Key card error 3 (Japan only) SC653 Key card error 4 (Japan only) SC701 ADF original pick-up malfunction 2 (New) 7-29
SC702 ADF feed-in motor lock (New) 7-30
SC703 ADF transport motor lock (New) 7-30
SC704 ADF feed-out motor lock (New) 7-30
SC705 ADF bottom plate motor error (New) 7-31
SC720 Finisher transport motor error (New) 7-31
SC731 Finisher paper exit guide plate motor lock (New) 7-33
SC735 Finisher pre-stack motor error (New) 7-33
SC736 Finisher paper exit guide plate motor error (New) 7-34
SC737 Finisher disposal staple full (New) 7-34
SC738 Finisher shift tray lift motor error (New) 7-34
SC740 1,000-sheet finisher error in finisher area (New) 7-34
SC741 1,000-sheet finisher error in saddle stitching area (New) 7-34
SC901 Mechanical total counter error (New) 7-35
SC956 Scanner parameter setting ID error (New) 7-36
SC957 Scanner return ID error (New) 7-36
SC958 Scanner ready ID error (New) 7-36
SC959 Printer setting ID error (A229: SC959) 7-36
SC960 Printer return ID error (A229: SC960) 7-37
7-22
7-27
7-27
7-27
7-28
7-28
7-28
7-29
A292/A293 14 SM
Page 47
DIFFERENT POINTS
Section Item Description Page
Service
Call
Conditions
Electrical
Component
Defect
Blown
Fuse
Conditions
SC970 Scanner ready error (New) 7-38
SC984 HDD response error (A229: SC981) 7-38
- SC370-3 is deleted. (A229: Page 7-9) -
- SC370-6 is deleted. (A229: Page 7-10) -
- SC370-7 is deleted. (A229: Page 7-11) -
- SC491 is deleted. (A229: Page 7-13) -
Connector
Number
Sensors
Fuse The number of fuses is decreased. 7-45
Connector numbers are changed. 7-40
to
7-44
Duplex Inverter Sensor (S35) and Fusing Exit sensor (S43)
are added
7-42
7-43
SM 15 A292/A293
Page 48
DIFFERENT POINTS
Rev. 06/26/2000
SECTION 9: OPTION – 3,000-SHEET FINISHER (“B312”)
Section Item Description Page
Specifications
Paper
weight in
punch
mode
The maximum paperweight, that the 2-hole and 3-hole
punch units can handle, has become 157 g/m
128 g/m
2
)
The 4-hole types can handle up to 128 g/m
2
.
2
. (A229:
B312-1
Paper size
in staple
mode
Component
Layout
Paper feed Pre-stack
function
Number of
Mechanism
stoppers
Shift Tray
Exit Plate
Jam
Conditions
Service
Tables
DIP
Switches
The paper sizes with the same width like A3 and A4
sideways and LG and LT sideways can be stapled
together.
• A motor and a sensor to move the Paper Exit Guide
Plate have been added.
• A motor and a junction gate solenoid for the Pre-
stack function have been added.
The pre-stack tray and a junction gate have been
added to increase the productivity when using A4, LT
and B5 sideways.
The pre-stack tray holds the first paper of next job
until the stapling for the present job is finished and
sends it to the staple tray together with the second
paper.
There are 2 stack stoppers to increase the productivity
of when a small number of papers are stapled. (A229:
1 stopper)
The Shift Tray Exit Plate has become a Open/Close
type because of the following reasons:
• To reduce a noise generated when a stapled set of
papers hits the paper exit guide plate.
• To feed a stapled set of papers out more smoothly.
• A motor and a sensor for this function have been
added to control the movement of the plate.
• Entrance sensor ON check: 2 s (A229: 450 ms)
• *Entrance sensor OFF check: 850 ms (A229:
1325ms)
• Upper tray exit sensor ON check: 1,050 ms (A229:
1,630 ms)
• *Upper tray exit sensor OFF check: 850 ms (A229:
1,325 ms)
• Shift tray exit sensor ON check: 1,345 ms (A229:
2,090 ms)
• *Shift tray exit sensor OFF check: 850 ms (A229:
1,325 ms)
• Staple tray entrance sensor ON check: 2,405 ms
(A229: 3,700 ms)
• *Staple tray entrance sensor OFF check: 850 ms
(A229: 1,325 ms)
• Staple tray paper sensor OFF check: 466 pulses
(A229: 250 pulses)
The mark of * means the value in case of A4
sideways.
• DPS100 is not used any more.
• DPS101-1,2,3,4
0,0,0,0: Default
1,1,1,0: Free run (one cycle)
B312-1
B312-4
to
B312-9
B312-11
B312-15Feed-out
B312-15
B312-20
B312-21
A292/A293 16 SM
Page 49
Rev. 06/26/2000
SECTION 10: OPTION – 1,000-SHEET FINISHER (“A763”)
Section Item Description
Finisher
Saddle
Stitching
Paper Size A3 to A5, DLT to LT
Output Tray
Proof tray, Shift tray and Saddle stitching (Center stapling)
tray
Paper Weight Proof tray: 64 to 80 g/m2 , 17 to 21 lb
Shift tray: 64 to 128 g/m
Saddle stitching tray:64 to 128 g/m
2
, 17 to 34 lb
2
, 17 to 34 lb
Paper Capacity Proof tray:
A4/LT or smaller: 50 sheets
Larger than A4/LT: 30 sheets
Shift tray:
A4/LT or smaller: 1,000 sheets (without staples)
750 sheets (with staples)
Larger than A4/LT: 500 sheets (With/without staples)
Staple Position 3 positions
1 staple (Front Slant or Rear Slant)
2 staples
Stapler
Capacity
Stapler
Replenishment
Paper Size for
Stapling
A4/LT or smaller: 50 sheets (80 g/m2, 20 lb)
Larger than A4/LT: 30 sheets (80 g/m2, 20 lb)
Cartridge (5,000 staples)
Type H (5 cartridges/box)
1 staple: A3 to B5, DLT to LT
2 staples: A3 to A4/B5 sideways, DLT to LT sideways
Power Source 24 Vdc (from copier)
Power
55 W
Consumption
Weight 45 kg, 20.5 lb
Dimension 689 x 582 x 1,047 mm, 27 x 23 x 41 inches
Saddle Stitching Folding in half with/without stapling
Paper Size A3 to A4 lengthwise, DLT to LT lengthwise
Stapler
15 sheets (including a cover page)
Capacity
Paper Weight 64 to 80 g/m2 , 17 to 21 lb
(Cover page: up to 128 g/m
2
, 34 lb)
Tray Capacity 25 sets (Up to 5 sheets/set)
20 sets (Up to 10 sheets/set)
10 sets (Up to 15 sheets/set)
Staple Position 2 staples (adjustable)
Stapler
Replenishment
Power
Cartridge (2,000 staples)
Type E (4 cartridges/box)
160 W
Consumption
DIFFERENT POINTS
SM 17 A292/A293
Page 50
Page 51
OVERALL INFORMATION
Page 52
Page 53
1. OVERALL MACHINE INFORMATION
SPECIFICATIONS
1.1 SPECIFICATIONS
1.1.1 COPIER ENGINE
Configuration: Console
Copy Process: Dry electrostatic transfer system
Originals: Sheet/Book
Original Size: Maximum A3/11" x 17"
Minimum B6, 51/2"x 81/2" (using ADF)
Original Alignment: Rear left corner
Copy Paper Size: Maximum
A3/11" x 17" (2nd/3rd Tray, By-pass)
Minimum
A5/51/2" x 81/2" (2nd/3rd Tray)
A6/51/2" x 81/2" lengthwise (By-pass)
Tandem LCT (1st Tray)
A4/81/2" x 11" sideways only
Duplex Copying: Maximum A3/11" x 17"
Minimum A5/51/2" x 81/2" lengthwise
Overall
Information
Copy Paper Weight: Paper tray: 52.3 ~ 127.9 g/m2, 14 ~ 34 lb
Bypass feed table: 52.3 ~ 157 g/m2, 14 ~ 41.7 lb
Duplex copying: 64 ~ 104.7 g/m2, 17 ~ 28 lb
Reproduction Ratios: 6 reduction and 5 enlargement
Metric Version Inch Version
Enlargement 400%
200%
141%
122%
115%
Full Size 100% 100%
Reduction 93%
82%
75%
71%
65%
50%
400%
200%
155%
129%
121%
93%
85%
78%
73%
65%
50%
SM 1-1 A292/A293/B098
Page 54
SPECIFICATIONS
Rev. 10/2002
Zoom: 25 ~ 400%
Copy Speed: A292: Max. 55 cpm (A4 / 81/2" x 11" sideways)
A293: Max. 70 cpm (A4 / 81/2" x 11" sideways)
B098: Max. 55 cpm (A4 / 81/2” x 11” sideways)
Resolution:
Scanning Printing
A292/A293 600 dpi 400/600 dpi
B098 600 dpi 600 dpi
Gradation: 256 levels
Warm-up Time: Less than 330 s (from Off-mode)
Less than 30 s (from Low Power Mode)
First Copy Time:
(1st Tray)
Less than 3.5 s (A4/LT, Face up mode)
Less than 5.3 s (A4/LT, Face down mode)
Copy Number Input: Ten-key pad, 1 to 999
Copy Paper Capacity: Tray 1: 3100 sheets (when used as a tandem tray)
Tray 2: 550 sheets
Tray 3 : 550 sheets
By-pass Tray: 50 sheets
Copy Tray Capacity:
(Output Tray)
A4/81/2" x 11" : 500 sheets (100 µm thickness paper)
A3/11" x 17" : 250 sheets
Memory Capacity: RAM: 48 MB
HDD: 4.3 GB
Toner Replenishment: Cartridge exchange (1220g/ cartridge)
Toner Yield: A292/A293: 42k copies/cartridge
B098: 46k copies/cartridge
46k copies/cartridge
(A4 sideways, 6% full black, 1 to 5 copying, including
toner recycling ratio 20%)
Power Source: North America:
120V, 60Hz, 20A
Europe/Asia:
220 ~ 240 V, 50Hz/60Hz, 10A
A292/A293/B098 1-2 SM
Page 55
Rev. 10/2002
Power Consumption: A292/A293 copier (120 V Model)
Copier only Full system*
Warm-up About 1.290 kW About 1.300 kW
Stand-by About 0.255 kW About 0.270 kW
Copying About 1.630 kW About 1.650 kW
Maximum Less than 1.75 kW Less than 1.75 kW
Energy Saver About 0.230 kW About 0.240 kW
Low Power About 0.225 kW About 0.235 kW
Off Mode About 0.009 kW About 0.009 kW
A292/A293 copier (220 to 240 V Model)
Copier only Full system*
Warm-up About 1.255 kW About 1.300 kW
Stand-by About 0.270 kW About 0.285 kW
Copying About 1.610 kW About 1.590 kW
Maximum Less than 1.75 kW Less than 1.75 kW
Energy Saver About 0.245 kW About 0.255 kW
Low Power About 0.240 kW About 0.250 kW
Off Model About 0.012 kW About 0.012 kW
SPECIFICATIONS
Overall
Information
B098 copier (120 V Model)
Copier only Full system*
Warm-up About 1.200 kW About 1.200 kW
Stand-by About 0.271 kW About 0.292 kW
Copying About 1.400 kW About 1.500 kW
Maximum Less than 1.75 kW Less than 1.85 kW
Energy Saver About 0.260 kW About 0.290 kW
Low Power About 0.207 kW About 0.230 kW
Off Model About 0.009kW About 0.023 kW
B098 copier (220 to 240 V Model)
Copier only Full system*
Warm-up About 1.200 kW About 1.200 kW
Stand-by About 0.281 kW About 0.303 kW
Copying About 1.400 kW About 1.400 kW
Maximum Less than 1.75 kW Less than 1.75 kW
Energy Saver About 0.256 kW About 0.278 kW
Low Power About 0.212 kW About 0.2400 kW
Off Model About 0.012 kW About 0.025 kW
*Full System: A292/A293 :Mainframe with LCT (A698) and Finisher (B302)
B098: Mainframe with LCT (B587, Finisher (B586) and
Printer Controller (B590)
SM 1-3 A292/A293/B098
Page 56
SPECIFICATIONS
Noise Emission:
Rev. 10/2002
Sound Power Level:
Stand-by Less than
Copying (ADF 1 to 1) Less than
Copying (From Memory) Less than
Sound Pressure Level:
Stand-by Less than
The measurements were made in accordance with ISO 7779
at the operator position.
Copier only Full system
A292/A293 B098 A292/A293 B098
Less than
49 dB(A)
75 dB(A)
71 dB(A)
The measurements were made in accordance with ISO 7779 at
the operator position.
Copier only Full system
A292/A293 B098 A292/A293 B098
35 dB(A)
49dB(A)
Less than
74dB(A)
Less than
71 dB(A)
Less than
58 dB(A)
Less than
49 dB(A)
Less than
75 dB(A)
Less than
71 dB(A)
Less than
35 dB(A)
Less than
49 dB(A)
Less than
74dB(A)
Less than
71 dB(A)
Less than
58 dB(A)
Copying (ADF 1 to 1) Less than
Copying (From Memory) Less than
Dimensions:
(W x D x H)
65 dB(A)
58 dB(A)
690 x 750 x 1138 mm (27.2" x 29.5" x 44.8")
(without ADF right exit tray, and options)
Less than
64 dB(A)
Less than
58 dB(A)
Weight: 188 kg (without options)
A292/A293 B098
Optional Equipment:
• Output tray (B333-17)
• Finisher (A763)
• Finisher (B302)Finisher
(B312)
• Punch unit (A812-30, 31, -32, -57, 67)
• Large capacity tray
(A698)
• Copy connector kit
(B322)
• LG kit (A375)
• Tab sheet holder (B373
Less than
65 dB(A)
Less than
58 dB(A)
Less than
64 dB(A)
Less than
58 dB(A)
• )Output tray (B476-17
• Finisher (B586)
• Punch unit (A812-30, -
31, -32, -57, 67)
• Large capacity tray
(B587)
• Copy connector kit
(B322)
• LG kit (B588)
• Tab sheet holder (B373
A292/A293/B098 1-4 SM
Page 57
SPECIFICATIONS
1.1.2 ADF
Original Size: Normal Original Mode:
A3 to B6, DLT to HLT
Thin Original Mode:
A3 to B6 sideways, DLT to HLT
Duplex Original Mode:
A3 to B5, DLT to HLT
Original Weight: Normal Original Mode: 52 ~ 156 g/m2, 14 ~ 42 lb
Thin Original Mode: 40 ~ 156 g/m2, 11 ~ 42 lb
Duplex Original Mode: 52 ~ 128 g/m2, 14 ~ 34 lb
Table Capacity: 100 sheets (80 g/m2, 20 lb)
Original Standard Position: Rear left corner
Separation: FRR
Original Transport: One flat belt
Original Feed Order: From the top original
Overall
Information
Power Source: DC 24 V and DC 38 V from the copier
Power Consumption: 130 W
Dimensions (W x D x H): 680 x 560 x 150 mm
SM 1-5 A292/A293/B098
Page 58
MACHINE CONFIGURATION
1.2 MACHINE CONFIGURATION
2
1
Rev. 10/2002
34
A293V551.WMF
Item Machine Code No.
Mainframe A292/A293 B098 3
Output Tray B333 B476 2
Finisher A763, B302, B312 B586 1
Large Capacity Tray A698 B587 4
A812-30 (4 holes)
A812-31 (4 holes)
Punch Unit (Option for Finisher)
Copy Connector Kit
(for the tandem copy feature)
LG Kit
(Option for large capacity tray)
Tab Sheet Holder B373 N/A
A812-32 (2 holes)
A812-57 (3 holes)
A812-67 (2 holes)
B322
B375 B588
Inside the
Finisher
A292/A293/B098 1-6 SM
Page 59
MECHANICAL COMPONENT LAYOUT
1.3 MECHANICAL COMPONENT LAYOUT
1.3.1 COPIER ENGINE
Overall
Information
45
44
43
42
41
40
39
38
37
8
41014 15
7
65
9
13
1211
16
3
2
1
17
18
19
20
21
22
23
24
25
26
27
28
29
30
36
31
32
A293V115.WMF
333435
SM 1-7 A292/A293/B098
Page 60
MECHANICAL COMPONENT LAYOUT
1. 3rd Mirror
2. 2nd Mirror
3. 1st Mirror
4. Exposure Lamps
5. LD Unit
6. Cylindrical Lens
7. Polygonal Mirror
8. Cleaning Brush
9. Quenching Lamp
10. Barrel Toroidal Lends (BTL)
11. F-theta Mirror
12. SBU
13. Charge Corona Unit
14. Shield Glass
15. Laser Synchronization Detector
31. Separation Roller
32. Tray 1 (Tandem LCT)
33. Tray 2 (550-sheet Tray)
34. Tray 3 (550-sheet Tray)
35. Pick-up Roller
36. Duplex Feed Roller
37. Duplex Transport Rollers
38. Reverse Trigger Roller
39. Inverter Unit Paper Exit Roller
40. Inverter Feed Roller
41. Pressure Roller
42. Transport Rollers
43. Paper Exit Rollers
44. Curl Correction Roller
45. Hot Roller
16. Optics Cooling Fan Motor
17. Drum Cleaning Blade
18. Drum Potential Sensor
19. Drum
20. Pick-off Pawl
21. Development Unit
22. TD Sensor
23. Pick-up Roller
24. Feed Roller (By-pass Tray)
25. Separation Roller
26. Registration Rollers
27. Transfer Belt Unit
28. Relay Roller
29. Vertical Transport Rollers
30. Feed Roller
A292/A293/B098 1-8 SM
Page 61
1.3.2 ADF
MECHANICAL COMPONENT LAYOUT
Overall
Information
1
21
20
19
18 17 1213141516
1. Separation Roller
2. Feed Belt
3. Pick-up Roller
4. Bottom Plate
5. Original Tray
6. Upper Tray Exit Roller
7. Inverter Gate
8. Inverter Guide Roller
9. Inverter Sensor
10. Right Tray Exit Roller
11. Right Exit Tray
7
12. Exit Gate
13. Inverter Roller
14. Exit Sensor
15. Upper Exit Tray
16. Transport Belt
17. Registration Sensor
18. Lower Transport Roller
19. Width Sensor
20. Upper Transport Roller
21. Entrance Sensor
863425
A293V554.WMF
9
10
11
SM 1-9 A292/A293/B098
Page 62
PAPER PATH
1.4 PAPER PATH
10
11
1
2
9
8
7
6
3
5
A293V107.WMF
4
1. ADF
2. By-pass Tray
3. Optional LCT
4. Tray 3 (550-sheet Tray)
5. Tray 2 (550-sheet Tray)
6. Tray 1 (Tandem LCT)
7. Duplex Unit
8. Finisher
9. Inverter Unit
10. Shift Tray
11. Upper Tray
A292/A293/B098 1-10 SM
Page 63
1.5 COPY PROCESS
COPY PROCESS
Overall
Information
1
A293V553.WMF
2
3
10
4
9
8
5
7
6
A293V501.WMF
1. EXPOSURE
A xenon lamp exposes the original. Light reflected from the original passes to the
CCD, where it is converted into an analog data signal. This data is converted to a
digital signal, processed, and stored in the memory. At the time of printing ,the data
is retrieved and sent to the laser diode. For multi-copy runs, the original is scanned
once only and stored to the hard disk.
2. DRUM CHARGE
An OPC (organic photoconductor) drum is used in this machine. In the dark, the
charge corona unit gives a negative charge to the drum. The grid plate ensures
that corona charge is applied uniformly. The charge remains on the surface of the
drum because the OPC layer has a high electrical resistance in the dark.
3. LASER EXPOSURE
The processed data from the scanned original is retrieved from the hard disk and
transferred to the drum by two laser beams, which form an electrostatic latent
image on the drum surface. The amount of charge remaining as a latent image on
the drum depends on the laser beam intensity, which is controlled by the BICU
board.
SM 1-11 A292/A293/B098
Page 64
COPY PROCESS
4. DRUM POTENTIAL SENSOR
The drum potential sensor detects the electric potential on the drum to correct
various process control elements.
5. DEVELOPMENT
The magnetic developer brush on the development rollers comes in contact with
the latent image on the drum surface. Toner particles are electrostatically attracted
to the areas of the drum surface where the laser reduced the negative charge on
the drum.
6. IMAGE TRANSFER
Paper is fed to the area between the drum surface and the transfer belt at the
proper time to align the copy paper and the developed image on the drum. Then,
the transfer bias roller applies a high positive charge to the reverse side of the
paper through the transfer belt. This positive charge pulls the toner particles from
the drum to the paper. At the same time, the paper is electrically attracted to the
transfer belt.
7. PAPER SEPARATION
Paper separates from the drum as a result of the electrical attraction between the
paper and the transfer belt. The pick-off pawls also help separate the paper from
the drum.
8. ID SENSOR
The laser forms a sensor pattern on the drum surface. The ID sensor measures the
reflectivity of the pattern. The output signal is one of the factors used for toner
supply control.
9. CLEANING
The cleaning brush removes toner remaining on the drum after image transfer and
the cleaning blade scrapes off all remaining toner.
10. QUENCHING
The light from the quenching lamp electrically neutralizes the charge on the drum
surface.
A292/A293/B098 1-12 SM
Page 65
1.6 DRIVE LAYOUT
1.6.1 COPIER ENGINE
11
10
'
(
)
!
DRIVE LAYOUT
Overall
1
Information
"
2
9
8
7
6
1. Drum Motor
2. Scanner Motor
&
&
#
&
5
A293V108.WMF
! Cleaning Unit
" Scanner Unit
$
3
%
4
3. Fusing/Duplex Motor
4. Toner Recycling Clutch
5. Paper Feed Motor
6. Toner Collection Motor
7. Registration Motor
8. Relay Clutch
9. By-pass Feed Motor
10. By-pass Feed Clutch
11. Development Motor
SM 1-13 A292/A293/B098
# Transfer Belt Unit
$ Fusing Unit
% Duplex Unit
& Paper Feed Units
' Toner Hopper
( Development Unit
) Drum
Page 66
DRIVE LAYOUT
1.6.2 ADF
14
1
13
2
12
11
3
4
10
5
6
9
8
7
A293V552.WMF
1. Pick-up Motor
2. Bottom Plate Motor
3. Feed-in Motor
4. Transport Motor
5. Upper Exit Roller
6. Feed-out Motor
7. Right Exit Roller
8. Transport Belt
9. Lower Transport Roller
10. Upper Transport Roller
11. Separation Roller
12. Feed Belt
13. Pick-up Roller
14. Feed-in Clutch
A292/A293/B098 1-14 SM
Page 67
Rev. 10/2002
ELECTRICAL COMPONENT DESCRIPTION
1.7 ELECTRICAL COMPONENT DESCRIPTION
Refer to the electrical component layout on the reverse side of the point-to-point
diagram for the location of the components using the symbols and index numbers.
1.7.1 COPIER ENGINE
Overall
Information
Symbol Name Function
Motors
M1 Scanner Drives the 1st and 2nd. 15
M2 Polygonal Mirror Turns the polygonal mirror. 22
Rotates the LD unit to adjust the LD
beam pitch when a different resolution
is selected.
M3
LD Positioning
(for A292/A293 only)
M4 Drum Drives the drum and cleaning unit. 36
M5 Development Drives the development unit. 37
M6
M7
M8
M9
M10
M11
M12
M13
M14
M15 By-pass Feed Drives the by-pass feed rollers. 41
M16 Registration Drives the registration rollers. 40
M17
M18
M19 Optics Cooling Fan Removes heat from the optics unit. 21
M20 Drum Cooling Fan Sends the air to the drum inside. 38
M21
M22
M23
Toner Supply Rotates the toner bottle to supply toner
to the development unit.
Charge Corona Wire
Cleaner
Fusing/Duplex Drives the fusing unit, duplex unit,
Toner Collection
Toner Recycling Drives the air pump to send recycled
Paper Feed Drives all feed and transport rollers in
1st Tray Lift Raises and lowers the bottom plate in
2nd Tray Lift
3rd Tray Lift Raises the bottom plate in the 3rd paper
Rear Fence Moves the paper stack in the left
Jogger Drives the jogger fences to square the
Exhaust Fan Removes heat from around the fusing
Fusing Fan
Duplex Cooling Fan Removes heat from around the duplex
Drives the charge corona wire cleaner.
inverter unit, and paper exit rollers.
Transports the collected toner to the
toner collection bottle.
toner to the development unit.
the paper tray unit.
the 1st paper tray.
Raises the bottom plate in the 2nd
paper tray.
tray.
tandem tray to the right tandem tray.
paper stack in the duplex unit.
unit.
Removes heat from around the fusing
unit.
unit.
Index
No.
25
43
68
44
3
6
124
125
127
128
136
94
35
34
42
SM 1-15 A292/A293/B098
Page 68
ELECTRICAL COMPONENT DESCRIPTION
Rev. 10/2002
Symbol Name Function
M24
Exit Cooling Fan
(for A292/A293 only)
Removes heat from the exit unit.
M25 PSU Cooling Fan Removes heat from around the PSU. 54
M26 SBU Cooling Removes the heat from around CCD. 19
M27
Exit Cooling Fan 1
Removes heat from around the PSU 145
(for B098 only)
M28 Exit Cooling Fan 2
Removes heat from around the PSU 146
(for B098 only)
Magnetic Clutches
MC1
Toner Supply Turns the toner supply roller to supply
toner to the development unit.
MC2 Toner Recycling Drives the toner recycling unit. 1
MC3 1st Paper Feed Starts paper feed from tray 1. 100
MC4 2nd Paper Feed Starts paper feed from tray 2. 104
MC5 3rd Paper Feed Starts paper feed from tray 3. 109
MC6
By-pass Feed
Starts paper feed from the by-pass
table.
MC7 Inverter Exit Clutch Drives the inverter exit roller. 88
Duplex Transport Drives the duplex transport rollers to
MC8
transport the paper to the duplex feed
rollers.
Duplex Feed
MC9
Starts paper feed out of the duplex tray
back into the machine via to the relay
rollers.
MC10 1st Vertical Relay Drives the 1st vertical transport rollers. 101
MC11 2nd Vertical Relay Drives the 2nd vertical transport rollers. 105
MC12 3rd Vertical Relay Drives the 3rd vertical transport rollers. 108
MC13 Bank Relay Drives the bank relay roller. 103
MC14 Relay Drives the relay rollers. 81
Index
No.
45
39
78
89
91
Switches
Main Power
SW1
Provides power to the machine. If this is
off, there is no power supplied to the
9
machine.
Operation Provides power for machine operation.
SW2
The machine still has power if this
27
switch is off.
SW3
SW4
SW5
SW6
SW7
A292/A293/B098 1-16 SM
Front Door Safety
Switch 1
Front Door Safety
Switch 2
Front Door Safety
Switch 3
Lower Front Door
Safety
Toner Collection Bottle
Set
Cuts the +5 V LD dc power line.
Detects if the front door is open or not,
and cuts the +24 V dc power line.
Cuts the +5 V LD dc power line.
Cuts the +24 V dc power line.
Detects if the toner collection bottle is
set or not.
10
11
12
8
5
Page 69
Rev. 10/2002
ELECTRICAL COMPONENT DESCRIPTION
Symbol Name Function
SW8
Toner Overflow
Detects when the toner collection bottle
is full.
SW9 Paper Size Determines the size of paper in tray 2. 129
Solenoids
SOL1
SOL2
SOL3
SOL4
SOL5
SOL6
SOL7
SOL8
SOL9
SOL10
SOL11
SOL12
SOL13
SOL14
SOL15
SOL16
Transfer Belt Lift
1st Pick-up Controls the up-down movement of the
2nd Pick-up Controls the up-down movement of the
3rd Pick-up Controls the up-down movement of the
By-pass Pick-up
1st Separation Roller Controls the up-down movement of the
2nd Separation Roller Controls the up-down movement of the
3rd Separation Roller Controls the up-down movement of the
Right Tray Lock
Left Tray Lock Locks the left tandem tray during more
Front Side Fence Opens the front side fence of right
Rear Side Fence
Duplex Inverter Gate Moves the junction gate to direct copies
Reverse Roller Controls the up-down movement of the
Guide Plate Opens the guide plate when a paper
Inverter Gate
Controls the up-down movement of the
transfer belt unit.
pick-up roller in tray 1.
pick-up roller in tray 2.
pick-up roller in tray 3.
Controls the up-down movement of the
pick-up roller for by-pass feed.
separation roller in tray 1.
separation roller in tray 2.
separation roller in tray 3.
Locks the right tandem tray during
paper feed from tandem tray.
the paper from left tray to right tray.
tandem tray.
Opens the rear side fence of right
tandem tray.
to the duplex tray or to the paper exit.
reverse trigger roller.
misfeed occurs around this area.
Opens the inverter gate during a duplex
job.
Index
No.
4
Overall
Information
70
99
106
110
76
102
107
111
126
123
134
130
96
95
80
74
Sensors
S1
S2
S3
S4
S5
Scanner HP
Original Width Detects original width. This is one of
Original Length 1 Detects original length. This is one of
Original Length 2 Detects original length. This is one of
LD Unit Home Position
(for A292/A293 only)
Informs the CPU when the 1st and 2nd
scanners are at home position.
APS (Auto Page Select) sensors.
APS (Auto Page Select) sensors.
APS (Auto Page Select) sensors.
Informs the CPU when the LD unit is at
home position.
32
33
16
18
24
S6 Drum Potential Detects the drum surface potential. 66
SM 1-17 A292/A293/B098
Page 70
ELECTRICAL COMPONENT DESCRIPTION
Symbol Name Function
S7
S8
Toner Density (TD)
Image Density (ID) Detects the density of the ID sensor
Detects the amount of toner in the
developer.
pattern on the drum.
S9 Toner End Detects toner end. 72
S10 Toner Collection Motor Monitors the toner collection motor. 7
S11
Toner Recycling Monitors the toner recycling and
collection unit operation.
1st Paper Feed Controls the 1st paper feed clutch off/on
S12
timing and the 1st pick-up solenoid off
timing.
2nd Paper Feed Controls the 2nd paper feed clutch
S13
off/on timing and the 2nd pick-up
solenoid off timing.
3rd Paper Feed
S14
Controls the 3rd paper feed clutch off/on
timing and the 3rd pick-up solenoid off
timing.
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
1st Tray Lift Detects when the paper in tray 1 is at
the correct height for paper feed.
2nd Tray Lift Detects when the paper in tray 2 is at
the correct height for paper feed.
3rd Tray Lift
Detects when the paper in tray 3 is at
the correct height for paper feed.
1st Paper End Informs the CPU when tray 1 runs out of
paper.
2nd Paper End Informs the CPU when tray 2 runs out of
paper.
3rd Paper End
Informs the CPU when tray 3 runs out of
paper.
By-pass Paper End Informs the CPU that there is no paper
in the by-pass feed table.
1st Paper Near End Informs the CPU when the paper in tray
1 is almost finished.
2nd Paper Near End Informs the CPU when the paper in tray
2 is almost finished.
3rd Paper Near End Informs the CPU when the paper in tray
3 is almost finished.
Rear Fence HP Informs the CPU when the tandem tray
rear fence is in the home position.
Rear Fence Return Informs the CPU when the tandem tray
rear fence is in the return position.
Front Side Fence Open Defects that the front side fence of
tandem tray is opened.
Front Side Fence
Close
Defects that the front side fence of
tandem tray is closed.
Rear Side Fence Open Defects that the rear side fence of
tandem tray is opened.
Rear Side Fence Close Defects that the rear side fence of
tandem tray is closed.
Index
No.
73
69
2
120
116
114
122
118
112
121
117
113
77
140
119
115
139
132
135
138
142
141
A292/A293/B098 1-18 SM
Page 71
ELECTRICAL COMPONENT DESCRIPTION
Symbol Name Function
Right Tray Down Detects when the bottom plate of the
S31
right tandem tray is completely lowered
to stop the 1st tray lift motor.
S32
S33
S34
Right Tray Paper Detects whether there is paper or not in
the right tray of tandem tray.
Left Tandem Tray
Paper
Duplex Entrance
Sensor
Detects whether there is paper or not in
the left tray of tandem tray.
Detects the leading and trailing edges of
the paper to determine the reverse roller
solenoid on or off timing.
Duplex Inverter
S35
Defects the leading edge and tray
edges of the paper to determine the
inverter exit clutch on or off timing.
S36
S37
S38
S39
Duplex Transport
Sensor 1
Duplex Transport
Sensor 2
Duplex Transport
Sensor 3
Duplex Jogger HP Detects if the duplex jogger fences are
Detects the position of paper in the
duplex unit.
Detects the position of paper in the
duplex unit.
Detects the position of paper in the
duplex unit.
at the home position or not.
S40 Relay Detects misfeeds. 82
S41
S42
Registration Detects misfeeds and controls
registration clutch off-on timing.
Guide Plate Position Detects whether the registration guide
plate is closed or not.
S43 Fusing Exit Defects misfeeds 62
S44 1st Exit Detects misfeeds. 84
S45 2nd Exit Detects misfeeds. 85
S46
Tray Paper Limit
(option)
Detects paper overflow on the output
tray.
Index
No.
133
131
137
98
97
87
93
92
90
83
75
86
Overall
Information
PCBs
BICU Controls all base engine functions both
PCB1
directly and through other control
20
boards.
PCB2
PSU Provides dc power to the system and ac
power to the fusing lamp and heaters.
53
IOB Controls the mechanical parts of the
PCB3
machine (excluding the scanner unit
47
section), and the fusing lamp.
PCB4
PCB5
PCB6
PCB7
SBU Contains the CCD, and outputs a video
signal to the SBICU board.
MCU Controls the components in the scanner
unit.
Lamp Regulator
Provides dc power to the exposure
lamp.
CNB
Passes signals and dc supplies from the
PSU and IOB to motors and other
17
46
14
59
components.
SM 1-19 A292/A293/B098
Page 72
ELECTRICAL COMPONENT DESCRIPTION
Rev. 10/2002
Symbol Name Function
PCB8
PCB9
PCB10
PCB11
DRB
Paper Feed Control
Board (PFB)
Operation Panel 1 Controls the components on the right-
Operation Panel 2 Controls the components on the left-
Drives the registration, by-pass feed
and development motor.
Controls the mechanical parts of all
paper feed sections.
hand side of the operation panel.
hand side of the operation panel.
PCB12 LCD Control Controls the LCD. 30
PCB13
By-pass Paper Size
Detects the paper width on the by-pass
tray.
PCB14 Mother (Option) Connects the printer control board. –
PCB15 Printer Control (Option) Receives print data from a PC. –
PCB16
Copy Connect
Receives and sends data to other
copier.
PCB17 RSS Board Passes signal for RDS function 51
Lamps
L1
Exposure Lamp
Apply high intensity light to the original
for exposure.
L2 Fusing Lamp 1 Provides heat to the hot roller. 64
L3 Fusing Lamp 2 Provides heat to the hot roller. 63
L4
Quenching
Neutralizes any charge remaining on
the drum surface after cleaning.
Index
No.
50
52
28
31
79
–
13
67
Power Packs
PP1
PP2
PP3
Others
TF1
TH1
H1
H2
H3
CB1
HDD 1
Charge
Provides high voltage for the charge
corona wires and the grid plate.
Development Provides high voltage for the
development unit.
Transfer Provides high voltage for the transfer
belt.
Fusing Thermofuse
(for A292/A293 only)
Fusing Thermistor
Opens the fusing lamp circuit if the
fusing unit overheats.
Detects the temperature of the hot
roller.
Drum
Turns on when the main switch is off to
prevent moisture from forming around
the drum.
Tray Heater 1 Turns on when the main switch is off to
keep paper dry in the paper tray.
Tray Heater 2
Turns on when the main switch is off to
keep paper dry in the paper tray.
Circuit Breaker Provides back-up high current
protection for the electrical components.
HDD Scanned image data is compressed and
held here temporarily.
65
49
71
61
60
58
57
55
56
48
A292/A293/B098 1-20 SM
Page 73
Rev. 10/2002
ELECTRICAL COMPONENT DESCRIPTION
Symbol Name Function
LCD 1
LSD 1
LDU1 Laser Diode Unit Controls the laser diode. 26
TP1 Touch Panel Monitors the key matrix. (29)
TS 1
TS 2
LCD
Laser Synchronization
Detector
Thermostat 1
(for B098 only)
Thermostat 2
(for B098 only)
Displays the operation menus and
messages.
Detects the laser beam at the start of
the main scan.
Opens the fusing lamp circuit if the
fusing unit overheats.
Opens the fusing lamp circuit if the
fusing unit overheats.
Index
No.
29
23
143
144
1.7.2 ADF
Symbol Name Function Index No.
Motors
M1 Pick-up Moves the pick-up roller up and down. 3
M2
Feed-in
M3 Transport Belt Drives the transport belt. 9
M4 Feed-out Drives the exit and inverter rollers. 14
M5 Bottom Plate Moves the bottom plate up and down. 7
Drives the feed belt, and the separation,
pick-up, and transport rollers.
8
Overall
Information
Sensors
APS Start Informs the CPU when the DF is opened
S1
and closed (for platen mode) so that the
original size sensors in the copier can
check the original size.
S2 DF Position Detects whether the DF is lifted or not. 13
S3
S4
S5
S6
Original Set Detects whether an original is on the
table.
Bottom Plate HP Detects whether the bottom plate is in
the down position or not.
Bottom Plate
Position
Detects when the original is at the correct
position for feeding.
Pick-up Roller HP Detects whether the pick-up roller is up
or not.
Entrance Detects when to restart the pick-up motor
to lift up the pick-up roller, detects when
S7
to change the feed motor direction,
detects the trailing edge of the original to
finish checking the original length, and
checks for misfeeds.
Registration Detects the leading edge of the original
S8
to check the original length, detects when
to stop the original on the exposure
glass, and checks for misfeeds.
S9 Original Width 1 Detects the original width. 22
12
19
20
4
2
26
21
SM 1-21 A292/A293/B098
Page 74
ELECTRICAL COMPONENT DESCRIPTION
Symbol Name Function Index No.
S10 Original Width 2 Detects the original width. 23
S11 Original Width 3 Detects the original width. 24
S12 Original Length Detects the original length. 25
S13
Exit
Detects when to stop the transport belt
motor and checks for misfeeds.
18
Inverter Detects when to turn the inverter gate
S14
and exit gate solenoids off and checks
17
for misfeeds.
S15
S16
Feed Cover
Exit Cover Detects whether the exit cover is open or
Detects whether the feed cover is open
or not.
not.
5
15
Solenoids
SOL1 Exit Gate Opens and closes the exit gate. 16
SOL2 Inverter Gate Opens and closes the inverter gate. 11
Magnetic Clutches
MC1
Feed-in Drives the feed belt, separation roller,
and pick-up roller.
1
PCBs
PCB1
PCB2
DF Main Controls the DF and communicates with
the main copier boards.
DF Indicator Indicates whether an original has been
placed in the feeder, and indicates
whether SADF mode has been selected.
10
6
A292/A293/B098 1-22 SM
Page 75
DETAILED DESCRIPTIONS
Page 76
Page 77
2. DETAILED DESCRIPTIONS
2.1 DOCUMENT FEEDER
2.1.1 PICK-UP ROLLER RELEASE
[F]
[E]
[B]
[C]
[D]
DOCUMENT FEEDER
Detailed
Descriptions
[A]
B301D103.WMF
When the original set sensor is off (no original on the original tray), the pick-up
roller stays in the up position.
When the original set sensor turns on (or when the trailing edge of a page passes
the entrance sensor while pages remain on the original tray), the pick-up motor [A]
turns on. The cam [B] rotates away from the pick-up roller release lever [C]. The
lever then rises and the pick-up roller [D] drops onto the original.
When the original reaches the entrance sensor, the pick-up motor turns on again.
The cam pushes the lever down, and the pick-up roller rises until the pick-up roller
HP sensor [E] detects the actuator [F].
SM 2-1 A292/A293/B098
Page 78
DOCUMENT FEEDER
2.1.2 BOTTOM PLATE LIFT
[B]
[F]
[E]
[A]
[C]
[D]
[B]
[F]
B301D105.WMF
When an original is placed on the original tray, the original set sensor [A] turns on,
the pick-up roller [B] drops on to the original, and the bottom plate position sensor
[C] turns off. Then the bottom plate motor [D] turns on and lifts the bottom plate [E]
by raising the lift lever [F] until the bottom plate position sensor turns on.
The level of the pick-up roller drops as the stack of originals becomes smaller, and
eventually, the bottom plate position sensor [C] turns off. Then, the bottom plate
motor turns on and lifts the bottom plate until the bottom plate position sensor turns
on. This keeps the original at the correct height for feeding.
A292/A293/B098 2-2 SM
Page 79
2.1.3 PICK-UP AND SEPARATION
[D]
DOCUMENT FEEDER
[A]
[E]
[B]
[C]
[A]
[B]
B301D102.WMF
[C]
B301D506.WMF
The original separation system is a Feed and Reverse Roller (FRR) system. The
pick-up roller [A], feed belt [B], and separation roller [C] are driven by the feed-in
motor [D].
Detailed
Descriptions
To drive this mechanism, the feed-in motor [D] and feed-in clutch [E] turn on.
When two sheets of originals are fed by the pick-up roller, the separation roller
turns in the opposite direction to the feed belt and the 2nd sheet is pushed back to
the original tray. When there is only one sheet between the feed belt and
separation roller, the separation roller rotates in the same direction as the feed belt.
This is because the separation roller contains a torque limiter.
SM 2-3 A292/A293/B098
Page 80
DOCUMENT FEEDER
2.1.4 ORIGINAL FEED
[B]
[A]
[D]
[C]
B301D109.WMF
When the leading edge of the original turns the entrance sensor [A] on, the feed-in
clutch [B] turns off and the drive for the feed belt is released. The original is fed by
the transport rollers [C].
At the same time, the pick-up motor starts again and the pick-up roller [D] is lifted
up. When the pick-up roller HP sensor turns on, the pick-up motor stops (see Pickup Roller Release).
A292/A293/B098 2-4 SM
Page 81
2.1.5 ORIGINAL SIZE DETECTION
DOCUMENT FEEDER
[G]
[F]
B301D104.WMF
[A]
[E]
[B]
[C]
Detailed
Descriptions
[D]
B301D503.WMF
The DF detects the original size by combining the readings of original length
sensor [A], and original width sensors-1 [B], -2 [C], and -3 [D].
Original Length
The original length sensor and the disk [E] (connected to the transport roller)
generate a pulse signal. The CPU counts pulses, starting when the leading edge of
the original turns on the registration sensor [F], until the trailing edge of the original
turns off the entrance sensor [G].
Original Width
The CPU detects original width using three original width sensors -1, -2, -3 as
shown above. Three small circles on the diagram indicate the positions of the
sensors.
SM 2-5 A292/A293/B098
Page 82
DOCUMENT FEEDER
2.1.6 ORIGINAL TRANSPORT
[B]
[C]
B301D106.WMF
[A]
[E]
[D]
3.5 mm
B301D509.WMF
The transport belt [A] is driven by the transport belt motor [B]. The transport belt
motor starts when the copier sends an original feed-in signal.
Inside the transport belt are six pressure rollers which maintain the correct
pressure between the belt and original. The pressure roller [C] closest to the left
original scale is made of rubber for the stronger pressure needed for thick originals.
The other rollers are sponge rollers.
Normally, originals are manually placed at the left rear corner, so an original [D] fed
from the DF must also be at this position. But if the original is fed along the rear
scale [E], original skew, jam, or wrinkling may occur.
To prevent such problems, the original transfer position is set to 3.5 mm away from
the rear scale as shown. The 3.5 mm gap is compensated for by changing the
starting position of the main scan.
A292/A293/B098 2-6 SM
Page 83
2.1.7 ORIGINAL SKEW CORRECTION
[A]
7 mm
DOCUMENT FEEDER
Detailed
Descriptions
B301D500.WMF
The transport belt motor remains energized to carry the original about 7 mm past
the left scale [A] (see the middle drawing). Then the motor stops and reverses to
feed the original back against the left scale (see the bottom drawing). This forces
the original to hit the left scale, which aligns the trailing edge to minimize original
skew on the exposure glass.
If thin original mode is selected, the original is not forced back against the left
scale. This is to prevent damage to the original.
After a two-sided original has been inverted to copy the 2nd side, it is fed in from
the inverter against the left scale (see the bottom drawing; the top two drawings do
not apply in this mode).
The amount of reverse feed against the left scale can be adjusted with SP modes.
SM 2-7 A292/A293/B098
Page 84
DOCUMENT FEEDER
2.1.8 ORIGINAL INVERSION AND FEED-OUT
General Operation
[A]
B301D107.WMF
When the scanner reaches the return position, the copier’s CPU sends the feed-out
signal to the DF. When the DF receives the feed-out signal, the transport belt motor
and feed-out motor [A] turn on. The original is then fed out to the exit tray or fed
back to the exposure glass after reversing in the inverter section.
This DF has two exit trays. For single-sided original mode, the original is fed out to
the right exit tray and for double-sided original mode, the original is fed out to the
upper exit tray.
This causes the originals to be fed out in the correct order on the exit trays and
allow the maximum one-to-one copy speed for each mode. The user can change
the exit tray to the upper exit tray for single-sided mode (for example, if there is not
enough space in the room for the right exit tray to be installed). However, one-toone copy speed for this mode is reduced.
A292/A293/B098 2-8 SM
Page 85
Original Inversion
DOCUMENT FEEDER
[F]
[B]
[E]
[G]
[D]
[A]
[C]
B301D113.WMF
When the DF receives the original invert signal from the copier, the transport belt
motor, feed-out motor, exit gate solenoid [A], and inverter gate solenoid [B] turn on
and the original is fed back to the exposure glass through the inverter roller [C], exit
gate [D], inverter guide roller [E], inverter gate [F], and inverter roller.
Detailed
Descriptions
The transport belt motor turns in reverse shortly after the leading edge of the
original turns on the inverter sensor [G], and feeds the original to the left scale.
SM 2-9 A292/A293/B098
Page 86
DOCUMENT FEEDER
Original Exit (Single-Sided Original Mode)
[A]
[B]
B301D111.WMF
The exit gate solenoid [A] remains off and the original is fed out to the right exit
tray. The transport belt motor turns off after the exit sensor [B] turns off.
To stack the originals neatly on the exit tray, the feed-out motor speed is reduced
30 mm before the trailing edge of the original turns off the exit sensor.
A292/A293/B098 2-10 SM
Page 87
Original Exit (Double-Sided Original Mode)
[B]
DOCUMENT FEEDER
[D]
[A]
[C]
B301D112.WMF
The exit gate solenoid [A] turns on and the inverter gate solenoid [B] remains off,
and the original is fed out to the upper tray. The transport belt motor turns off when
the trailing edge of the original passes through the exit sensor [C].
To stack the originals neatly on the upper tray, the feed-out motor speed is
reduced shortly after the trailing edge of the original turns off the inverter sensor
[D].
Detailed
Descriptions
SM 2-11 A292/A293/B098
Page 88
DOCUMENT FEEDER
2.1.9 JAM CONDITIONS
[A]
[D]
[C]
[B]
B301D501.WMF
Feed-in
1. The entrance sensor [A] is still off 500 ms after the feed-in motor turned on.
2. The registration sensor [B] is still not off 300 ms after the feed-in motor speed
increased.
3. The entrance sensor is still on when the feed-in and transport motors have fed
the original 442 mm after the registration sensor turned on.
Feed-out
4. The registration sensor is still on when the feed-in and transport motors have
fed the original 751 mm after the registration sensor turned on.
5. The exit sensor [C] is still off when the transport and feed-out motors have fed
the original 129 mm after the feed-out motor turned on.
6. The exit sensor is still on when feed-out motor has fed the original X mm
(X = original length x 1.3) after the exit sensor turned on.
Inversion
7. The exit sensor is still off when the transport and exit motors have fed the
original 198 mm after the transport motor turned on to feed the original to the
inverter section.
8. The exit sensor is still on when the feed-out motor has fed the original X mm
(X = original length x 1.3) after the exit sensor turned on.
9. The inverter sensor [D] is still off when the transport and feed-out motors have
fed the original 96 mm after the exit sensor turned on.
10. The inverter sensor is still off when the transport and feed-out motors have fed
the original 96 mm to the exposure glass after the exit sensor turned off.
A292/A293/B098 2-12 SM
Page 89
2.2 SCANNING
2.2.1 OVERVIEW
SCANNING
[A]
[D]
[E]
[C]
[B]
A293D575.WMF
The original is illuminated by the exposure lamp (a xenon lamp in this model) [A].
The image is reflected onto a CCD (charge coupled device) [B] via the 1st, 2nd,
and 3rd mirrors, and through the lens [C].
Detailed
Descriptions
The 1st scanner consists of the exposure lamp, the 1st mirror and the lamp
regulator [D].
The exposure lamp is energized by a dc supply (24 V) to avoid uneven light
intensity while the 1st scanner moves in the sub scan direction (down the page).
The entire exposure lamp surface is frosted to ensure even exposure in the main
scan direction (across the page).
There is an optics cooling fan [E] on the right side of the optics cavity to draw cool
air inside. The hot air exits through the vents in the upper cover. The fan operates
whenever the operation switch is turned on.
SM 2-13 A292/A293/B098
Page 90
SCANNING
2.2.2 SCANNER DRIVE
[C]
[D]
[B]
[G]
[G]
[F]
[A]
[E]
A293D001.WMF
The scanner drive motor is a dc servo motor. The 1st and 2nd scanners [A, B] are
driven by the scanner drive motor [C] through the timing belt [D], scanner drive
pulley [E], scanner drive shaft [F], and two scanner wires [G].
The MCU board controls the scanner drive motor. In full size mode, the 1st scanner
speed is 425 mm/s during scanning. The 2nd scanner speed is half that of the 1st
scanner.
In reduction or enlargement mode, the scanning speed depends on the
magnification ratio. The returning speed is always the same, whether in full size or
magnification mode. The image length is changed in the sub scan direction by
changing the scanner drive motor speed, and in the main scan direction it is
changed by image processing on the BICU board.
Magnification in the sub-scan direction can be adjusted by changing the scanner
drive motor speed using SP4008.
A292/A293/B098 2-14 SM
Page 91
2.2.3 ORIGINAL SIZE DETECTION IN BOOK MODE
SCANNING
Original Size
A4/A3
Version
A3 11" x 17"
B4 10" x 14"
F4 81/2" x 14" (8" x 13")
A4-L 81/2" x 11" X
B5-L – X
A5-L 51/2" x 81/2" X X X X X 10000000
A4-S 11" x 81/2"XX!!!
B5-S – X X
A5-S 81/2" x 51/2"XX!!!
LT/DLT Version 2 1 3 4 5
Length
Sensor
!!!!!
!!!!!
!!!!!
!!
!!
!!
!!
!!
!!
!!!!!
!!!!
Width Sensor
!!
!!
!!
!!
!
!!
!
!!
X X X 10001000
!!
!!!!!
!
!!
!!
!
!!
X X 10011100
X X 10001100
!!
!!
!
!!
X X 10000100
!
!!
X 10011110
!
!!
X 10000110
SP4301
Display
10011111
10000111
-L: Lengthwise, -S: Sideways, O: High (Paper Present), X: Low
The original size data is taken by the main CPU when the DF position sensor is
activated. This is when the DF is positioned about 15 cm above the exposure
glass. At this time, only the sensor(s) located underneath the original receive the
reflected light and switch on. The other sensor(s) are off. The main CPU can
recognize the original size from the on/off signals from the five sensors.
Detailed
Descriptions
If the copy is made with the platen open, the main CPU decides the original size
from the sensor outputs when the Start key is pressed.
The above table shows the outputs of the sensors for each original size. This
original size detection method eliminates the necessity for a pre-scan and
increases the machine's productivity. However, if the by-pass tray is used, the
machine assumes that the copy paper is lengthwise. For example, if A4 sideways
paper is placed on the by-pass tray, the machine thinks it is A3 paper and scans
the full A3 area, disregarding the original size sensors. However, for each page,
the data signal to the laser diode is stopped to match the copy paper length
detected by the registration sensor. This means that copy time for the first page
may be slower (because of the longer time required for scanning), but it will be
normal for the rest of the job.
SM 2-15 A292/A293/B098
Page 92
IMAGE PROCESSING
2.3 IMAGE PROCESSING
2.3.1 OVERVIEW
Drum
LDDR
LD
Driver
LD
Driver
CCD
LD
Controller
(GAVD)
SBU
IPU
BICU
Memory
Control ICs
GA1
GA2
HDD
A293D579.WMF
The CCD generates an analog video signal. The SBU (Sensor Board Unit)
converts the analog signal to an 8-bit digital signal, then it sends the digital signal
to the BICU (Base-engine, and Image Processing Control Unit) board.
The BICU board can be divided into two image processing blocks; the IPU (Image
Processing Unit) and the memory control IC. These two ICs mainly do the
following:
• IPU: Auto shading, filtering, magnification, γ correction, gradation
processing, and video path control
• Memory Controller: Image compression, image rotation, interface with
HDD controller, image repeat, and combine originals
Finally, the BICU board sends the video data to the LD drive board.
A292/A293/B098 2-16 SM
Page 93
Rev. 08/2000
2.3.2 SBU
IMAGE PROCESSING
⇒
OS4
Analog
OS3
Processing (Last)
A/D 1
LVDS
8-bit data
BICUSBU
IPUGA
CCD
OS2
OS1
Analog
Processing (First)
A/D 2
LVDS
8-bit data
The CCD converts the light reflected from the original into an analog signal. The
CCD line has 7,500 pixels and the resolution is 600 dpi (23.6 lines/mm).
The CCD has four output lines: OS1, OS2, OS3, and OS4. OS1 and OS2 are for
the first half of the scan line (Non-operation side), and OS3 and OS4 are for the
last half of the scan line (Operation side). There are two analog processing ICs;
one handles the first half line (OS 1 and OS2) and the other handles the last half
line (OS3 and OS4). The analog processing IC performs the following operations:
1) Combines the odd and even signals into one line signal.
2) Adjust the black reference level of each CCD output channel.
3) Amplifies the analog signal from the CCD.
Detailed
Descriptions
After the above processing, the analog signals are converted to 8-bit signals by the
A/D converter. This gives a value for each pixel on scale of 256 grades. Then, the
two 8-bit signals are sent to the BICU board through the LVDS (Low Voltage
Differential Signaling). The LVDS is a noise-resistant interface.
SM 2-17 A292/A293/B098
Page 94
IMAGE PROCESSING
2.3.3 AUTO IMAGE DENSITY (ADS)
0.5mm
Sub scan direction
[A]
15mm
75mm
A293D676.WMF
This mode prevents the background of an original from appearing on copies.
The copier scans the auto image density detection area [A]. This corresponds to a
narrow strip at one end of the main scan line, as shown in the diagram. As the
scanner scans down the page, the IPU on the BICU detects the peak white level
for each scan line, within this narrow strip only. From this peak white level, the IPU
determines the reference value for A/D conversion for the scan line. Then, the IPU
sends the reference value to the A/D controller on the SBU.
When an original with a gray background is scanned, the density of the gray area
is the peak white level density. Therefore, the original background will not appear
on copies. Because peak level data is taken for each scan line, ADS corrects for
any changes in background density down the page.
As with previous digital copiers, the user can select manual image density when
selecting auto image density mode and the machine will use both settings when
processing the original.
A292/A293/B098 2-18 SM
Page 95
2.3.4 IPU (IMAGE PROCESSING UNIT)
Overview
IMAGE PROCESSING
SBU
GA1
HDD
IPU
GA2
LDDR
LD1
GAVD
LD2
The image data from the SBU goes to the IPU (Image Processing Unit) IC on the
BICU board, which carries out the following processes on the image data.
1. Auto shading
2. Text/Photo separation
3. Background/Independent dot erase
DRAM
BICU
A293D581.WMF
Detailed
Descriptions
4. Filtering (MTF and smoothing)
5. Magnification
6. γ correction
7. Grayscale processing
8. Error diffusion
9. Dithering
10. Video path control
11. Test pattern generation
SM 2-19 A292/A293/B098
Page 96
IMAGE PROCESSING
2.3.5 IMAGE PROCESSING STEPS AND RELATED SP MODES
Text Mode
MTF filtering is used in text mode. The MTF filtering coefficient and strength can be
adjusted individually for both main and sub scan. Low density originals are
produced better when a stronger MTF filter is selected, but in this case, moiré
tends to appear.
With UP Mode (Copy Features – General Features – Original Mode Quality Level),
the user can select ‘Soft’, ‘Normal’, ‘Sharp’, and ‘SP Mode Changed’. The settings
of the SP modes indicated with an asterisk (*) are not used unless the user selects
‘SP Mode Changed’.
Image Processing Steps Related SP Modes
Input
Correction 1
Input
Correction 2
Filtering
Magnification
ID Control
Auto Shading
Background Erase
Independent Dot Erase
MTF
Main Scan Magnification
γ Correction
• SP4903-065 *
(Scanner Gamma Threshold
Level)
• SP4903-070 *
(Background Erase Level)
• SP4903-060
(Independent Dot Erase Level)
• SP4903-010 to 011 *
(Pre-Filter Coefficient)
• SP4903-020 to 035 *
(MTF Filter Strength)
• SP2909-001
(Main Scan Magnification)
• SP4903-84 *
(Scanner gamma setting)
Gradation
A292/A293/B098 2-20 SM
Error Diffusion/
Line Width Correction
• SP4903-78 to 80 *, 4904-20
(Line Width Correction Type)
Page 97
IMAGE PROCESSING
Photo Mode
Normally, the smoothing filter is used in photo mode but MTF filtering can also be
selected with SP mode.
With UP Mode (Copy Features – General Features – Original Mode Quality Level),
the user can select ‘Screen Printed’, ‘Normal’, ‘Continuous Tone’, and ‘SP Mode
Changed’. The settings of the SP modes indicated with an asterisk (*) are not used
unless the user selects ‘SP Mode Changed’.
When the user selects “Normal Paper” and “Continuous Tone”, error diffusion is
used for the gradation process. However, if the user selects “Screen Printed”,
dither processing is used.
Image Processing Path Related SP Modes
Detailed
Descriptions
Input
Correction 1
Input
Correction 2
Filtering
Magnification
ID Control
Auto Shading
Background Erase
Smoothing/MTF
Main Scan Magnification
γ Correction
• SP4903-66 *
(Scanner Gamma Thresh Level)
• SP4903-071 *
(Background Erase Level)
• SP4903-012 *
(Pre Filter Coefficient)
• SP4903-009 *
(Filter Type Selection)
• SP4903-036 to 038 *
(Smoothing/MTF Filter Coefficient
Level in Photo Mode)
• SP4904-006
(Smoothing Filter Level)
• SP2909-001
(Main Scan Magnification)
Gradation
SM 2-21 A292/A293/B098
Error Diffusion/
Dither Matrix
• SP4904-002 *
(Grayscale Process Selection:
Dither or Error Diffusion)
Page 98
IMAGE PROCESSING
Text/Photo Mode
MTF filtering is used for text/photo mode.
With UP Mode (Copy Features – General Features – Original Mode Quality Level),
the user can select ‘Photo Mode’, ‘Normal’, ‘Text Mode’, and ‘SP Mode Changed’.
The settings of the SP modes indicated with an asterisk (*) are not used unless the
user selects ‘SP Mode Changed’.
Image Processing Path Related SP Modes
Input
Correction 1
Input
Correction 2
Filtering
Magnification
ID Control
Auto Shading
Background Erase
Independent Dot Erase
MTF
Main Scan Magnification
γ Correction
• SP4930-67 *
(Scanner Gamma Thresh Level)
• SP4903-072 *
(Background Erase Level)
• SP4906 *
(On/Off in Text/Photo Mode)
• SP4903-062
(Independent Dot Erase Level)
• SP4903-013 to 014 *
(Pre Filter Coefficient)
• SP4903-039 to 054 *
(Filter Level and Strength)
• SP4904-007
(Texture Erase Filter Level)
• SP2909-001
(Main Scan Magnification)
• SP4903-85 *
(Scanner gamma setting)
• SP4904-003, 005 *
Gradation
Error Diffusion/
Line Width Correction
(Error Diffusion)
• SP4903-81 to 83 *, SP4904-22
(Line Width Correction Type)
A292/A293/B098 2-22 SM
Page 99
IMAGE PROCESSING
Pale Mode
The image processing for pale mode is basically the same as in text mode.
However, the contrast of the original is low. So, to preserve details, a stronger MTF
filter is used. Also, the independent dot erase level is set at a lower level, so that
only the faintest of dots are deleted; this ensures that dotted lines and periods are
not deleted.
With UP Mode (Copy Features – General Features – Original Mode Quality Level),
the user can select ‘Soft’, ‘Normal’, ‘Sharp’, and ‘SP Mode Changed’. The settings
of the SP modes indicated with an asterisk (*) are not used unless the user selects
‘SP Mode Changed’.
Image Processing Path Related SP Modes
Detailed
Descriptions
Input
Correction 1
Input
Correction 2
Filtering
Magnification
ID Control
Auto Shading
Background Erase
Independent Dot Erase
MTF
Main Scan Magnification
γ Correction
• SP4903-068 *
(Scanner Gamma Thresh Level)
• SP4903-73 *
(Background Erase Level)
• SP4903-063
(Independent Dot Erase Level)
• SP4903-015 *
(Pre Filter)
• SP4903-055 to 056 *
(MTF Filter Coefficient – Pale
Originals)
• SP2909-001
(Main Scan Magnification)
Gradation
SM 2-23 A292/A293/B098
Grayscale Processing/
Line Width Correction
• SP4904-23
(Line Width Correction Type)
Page 100
IMAGE PROCESSING
Generation Copy Mode
The image processing for generation mode is basically the same as in text mode,
except that in order to prevent lines in the main scan direction from being
reproduced too thickly, line width correction is applied for the final gradation
treatment. Also, to reduce unwanted black dots, a weaker MTF filter is used; this
ensures that isolated dots do not get bigger, and are spread out. These dots will
then be deleted by the independent dot erase feature. This feature, however, is
kept at a low setting to ensure that important details such as dotted lines and
periods are not deleted.
With UP Mode (Copy Features – General Features – Original Mode Quality Level),
the user can select ‘Soft’, ‘Normal’, ‘Sharp’, and ‘SP Mode Changed’. The settings
of the SP modes indicated with an asterisk (*) are not used unless the user selects
‘SP Mode Changed’.
Image Processing Path Related SP Modes
Input
Correction 1
Input
Correction 2
Filtering
Magnification
ID Control
Auto Shading
Background Erase
Independent Dot Erase
MTF
Main Scan Magnification
γ Correction
• SP4903-069 *
(Scanner Gamma Thresh Level)
• SP4903-074 *
(Background Erase Level)
• SP4903-064
(Independent Dot Erase Level)
• SP4903-016 *
(Pre Filter Coefficient)
• SP4903-057 to 058 *
(MTF Filter Coefficient –
Generation Copy)
• SP2909-001
(Main Scan Magnification)
Gradation
A292/A293/B098 2-24 SM
Grayscale Processing/
Line Width Correction
• SP4903-75 to 77*, SP4904-24
(Line Width Correction Type)
Loading...