Gestetner A294 User manual

A294/A295
SERVICE MANUAL
000902MIU
RICOH GROUP COMPANIES
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA

CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA

A294/A295
SERVICE MANUAL
RICOH GROUP COMPANIES
®
®
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA

CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA

A294/A295
SERVICE MANUAL
000902MIU
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA

CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA

It is the reader's responsibility when discussing the information contained within this
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Corporation and its member companies.
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2000 RICOH Corporation. All rights reserved.
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA

CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA

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

CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA

LEGEND
PRODUCT CODE COMPANY
GESTETNER RICOH SAVIN
A294-I3285 Aficio 850 2085DP
A295-I32105 Aficio1050 2105DP
A294-II 8502 Aficio 1085 2585
A295-II 10502 Aficio 1105 25105
DOCUMENTATION HISTORY
REV. NO. DATE COMMENTS
*1/2000 Original Printing
1 7/2000 A295 Addition
29/2001
A294-II/A295-II Addition
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA

CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA

SM i A294A295
TABLE OF CONTENTS
OVERALL INFORMATION
1. OVERALL MACHINE INFORMATION ........................................ 1-1
1.1 SPECIFICATIONS.....................................................................................1-1
1.1.1 COPIER ENGINE.............................................................................1-1
1.1.2 ADF ..................................................................................................1-4
1.2 MACHINE CONFIGURATION...................................................................1-5
1.3 COMPONENT LAYOUT............................................................................1-6
1.3.1 COPIER ENGINE.............................................................................1-6
1.3.2 ADF ..................................................................................................1-7
1.4 PAPER PATH............................................................................................1-8
1.5 COPY PROCESS......................................................................................1-9
1.6 DRIVE LAYOUT......................................................................................1-11
1.6.1 COPIER ENGINE...........................................................................1-11
1.6.2 ADF ................................................................................................1-12
1.7 ELECTRICAL COMPONENT DESCRIPTIONS ......................................1-13
1.7.1 COPIER ENGINE...........................................................................1-13
1.7.2 ADF ................................................................................................1-19
DETAILED DESCRIPTIONS
2. DETAILED SECTION 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
2.1.6 ORIGINAL TRANSPORT .................................................................2-6
2.1.7 ORIGINAL SKEW CORRECTION....................................................2-7
2.1.8 ORIGINAL INVERSION AND FEED-OUT........................................2-8
2.1.9 JAM CONDITIONS.........................................................................2-12
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............................................................................2-17
2.3.1 OVERVIEW ....................................................................................2-17
2.3.2 SBU................................................................................................2-18
2.3.3 AUTO IMAGE DENSITY (ADS)......................................................2-19
2.3.4 IMAGE PROCESSING STEPS AND RELATED SP MODE...........2-20
2.3.5 AUTO SHADING ............................................................................2-26
2.3.6 BACKGROUND ERASE.................................................................2-27
2.3.7 INDEPENDENT DOT ERASE ........................................................2-28
Rev. 10/2000
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A294/A295 ii SM
2.3.8 FILTERING, MAIN SCAN MAGNIFICATION/REDUCTION ...........2-29
2.3.9 GAMMA (γ) CORRECTION............................................................2-31
2.3.10 GRADATION PROCESSING........................................................2-31
2.3.11 LINE WIDTH CORRECTION........................................................2-32
2.4 LASER EXPOSURE................................................................................2-33
2.4.1 OVERVIEW ....................................................................................2-33
2.4.2 OPTICAL PATH..............................................................................2-34
2.4.3 AUTO POWER CONTROL (APC)..................................................2-35
2.4.4 FOUR BEAM LASER WRITING.....................................................2-36
2.4.5 LD SAFETY SWITCHES................................................................2-37
2.5 DRUM UNIT ............................................................................................2-38
2.5.1 PROCESS CONTROL....................................................................2-38
2.5.2 TONER DENSITY CONTROL........................................................2-43
2.5.3 DRUM UNIT COMPONENTS.........................................................2-46
2.5.4 DRIVE.............................................................................................2-47
2.5.5 DRUM CHARGE.............................................................................2-48
2.5.6 DRUM CLEANING..........................................................................2-50
2.5.7 OTHERS.........................................................................................2-53
2.6 DEVELOPMENT .....................................................................................2-56
2.6.1 OVERVIEW ....................................................................................2-56
2.6.2 DEVELOPMENT MECHANISM......................................................2-57
2.6.3 DRIVE.............................................................................................2-58
2.6.4 CROSSMIXING..............................................................................2-59
2.6.5 DEVELOPMENT BIAS ...................................................................2-60
2.7 TONER SUPPLY AND RECYCLING.......................................................2-61
2.7.1 TONER BANK ................................................................................2-61
2.7.2 SUPPLYING TONER TO THE DEVELOPMENT UNIT..................2-65
2.7.3 TONER HOPPER...........................................................................2-66
2.7.4 TONER RECYCLING AND WASTE TONER COLLECTION..........2-68
2.8 PAPER FEED..........................................................................................2-71
2.8.1 OVERVIEW ....................................................................................2-71
2.8.2 DRIVE.............................................................................................2-72
2.8.3 PAPER LIFT – TRAYS 2 & 3..........................................................2-73
2.8.4 PICK-UP AND FEED – TRAYS 1 TO 3 ..........................................2-75
2.8.5 REMAINING PAPER/
PAPER END DETECTION – TRAYS 2 & 3....................................2-79
2.8.6 PAPER SIZE DETECTION – TRAYS 2 & 3....................................2-80
2.8.7 TRAY LOCK – TRAYS 2 & 3..........................................................2-81
2.8.8 TANDEM FEED – TRAY 1 .............................................................2-82
2.8.9 VERTICAL TRANSPORT...............................................................2-89
2.8.10 PAPER REGISTRATION..............................................................2-90
2.9 IMAGE TRANSFER AND PAPER SEPARATION...................................2-93
2.9.1 OVERVIEW ....................................................................................2-93
2.9.2 IMAGE TRANSFER AND PAPER SEPARATION..........................2-94
2.9.3 TRANSFER BELT UNIT LIFT.........................................................2-96
2.9.4 PAPER TRANSPORTATION AND BELT DRIVE...........................2-97
2.9.5 TRANSFER BELT CLEANING.......................................................2-98
2.9.6 TONER COLLECTION...................................................................2-99
2.9.7 TRANSFER ANTI-CONDENSATION HEATER............................2-100
Rev. 10/2000
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SM iii A294A295
2.10 FUSING...............................................................................................2-101
2.10.1 OVERVIEW ................................................................................2-101
2.10.2 FUSING ENTRANCE GUIDE.....................................................2-102
2.10.3 FUSING UNIT DRIVE.................................................................2-103
2.10.4 FUSING LAMP CONTROL.........................................................2-104
2.10.5 OIL SUPPLY AND CLEANING...................................................2-105
2.10.6 PAPER COOLING......................................................................2-106
2.10.7 FUSING PRESSURE .................................................................2-107
2.10.8 HOT ROLLER STRIPPER RELEASE ........................................2-108
2.11 PAPER EXIT/DUPLEX........................................................................2-109
2.11.1 OVERVIEW ................................................................................2-109
2.11.2 PAPER EXIT MECHANISM........................................................2-110
2.11.3 DUPLEX DRIVE MECHANISM...................................................2-111
2.11.4 INVERTER..................................................................................2-112
2.11.5 DUPLEX TRAY FEED MECHANISM .........................................2-114
2.11.6 BASIC DUPLEX FEED OPERATION.........................................2-115
2.12 ENERGY SAVER MODES..................................................................2-119
2.12.1 OVERVIEW ................................................................................2-119
2.12.2 ENERGY SAVER (PANEL OFF) MODE ....................................2-120
2.12.3 LOW POWER MODE.................................................................2-121
2.12.4 OFF MODE.................................................................................2-122
2.12.5 SUMMARY .................................................................................2-124
2.13 OTHERS..............................................................................................2-125
2.13.1 OPERATION UNIT.....................................................................2-125
2.13.2 DOOR SAFETY SWITCH LOCK TOOLS...................................2-126
2.13.3 HDD CONTROL .........................................................................2-127
2.13.4 DATA PATH THROUGH THE INTERFACE BOARD .................2-129
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 (A294).........................................................................................3-3
3.2.1 ACCESSORY CHECK......................................................................3-3
3.2.2 INSTALLATION PROCEDURE ........................................................3-5
3.3 FINISHER INSTALLATION (B302)..........................................................3-13
3.3.1 ACCESSORY CHECK....................................................................3-13
3.3.2 INSTALLATION PROCEDURE ......................................................3-14
3.4 LCT INSTALLATION (B303)....................................................................3-17
3.4.1 ACCESSORY CHECK....................................................................3-17
3.4.2 INSTALLATION PROCEDURE ......................................................3-18
3.4.3 INSTALLATION PROCEDURE FOR THE TRAY HEATER KIT..3-19B
3.5 PUNCH UNIT INSTALLATION (A812)....................................................3-20
3.5.1 ACCESSORY CHECK....................................................................3-20
3.5.2 PUNCH UNIT INSTALLATION.......................................................3-21
Rev. 10/2000
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A294/A295 iv SM
3.6 A3/DLT TRAY (B331)..............................................................................3-24
3.6.1 ACCESSORY CHECK....................................................................3-24
3.6.2 INSTALLATION PROCEDURE ......................................................3-25
3.7 KEY COUNTER INSTALLATION............................................................3-28
3.8 INTERFACE BOARD
(CD-RW/TANDEM COPY KIT/PRINTER CONTROLLER)......................3-31
3.8.1 INSTALLATION PROCEDURE ......................................................3-31
3.8.2 INSTALLATION NOTES FOR CD-R/RW .......................................3-32
3.9 TRANSPORTATION REMARKS.............................................................3-32
3.9.1 TONER TRANSPORT TUBE CLEANING......................................3-32
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
4.1.7 DEVELOPMENT...............................................................................4-3
4.1.8 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
4.2.2 SERVICE PROGRAM MODE TABLES..........................................4-10
4.2.3 TEST PATTERN PRINTING (SP2-902) .........................................4-59
4.2.4 INPUT CHECK ...............................................................................4-60
4.2.5 OUTPUT CHECK ...........................................................................4-68
4.2.6 SYSTEM PARAMETER AND DATA LISTS (SMC LISTS) .............4-70
4.2.7 MEMORY ALL CLEAR (SP5-801)..................................................4-70
4.2.8 SOFTWARE RESET ......................................................................4-71
4.2.9 SYSTEM SETTING AND
COPY SETTING (UP MODE) RESET............................................4-71
4.3 PM COUNTER ........................................................................................4-72
4.3.1 PM COUNTER ACCESS PROCEDURE........................................4-72
4.4 PROGRAM DOWNLOAD........................................................................4-78
4.5 NVRAM DATA DOWNLOAD...................................................................4-80
4.6 LANGUAGE DATA DOWNLOAD............................................................4-81
4.7 STAMP DATA DOWNLOAD....................................................................4-81
4.8 USER PROGRAM MODE .......................................................................4-82
4.8.1 HOW TO ENTER AND EXIT UP MODE.........................................4-82
4.8.2 UP MODE TABLE...........................................................................4-82
4.8.3 IMAGE QUALITY SETTING BY UP MODE....................................4-85
4.8.4 LEDS..............................................................................................4-91
Rev. 9/2001
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SM v A294A295
4.9 TEST POINTS/DIP SWITCHES/LEDS....................................................4-92
4.9.1 DIP SWITCHES..............................................................................4-92
4.9.2 TEST POINTS................................................................................4-93
4.9.3 FUSES............................................................................................4-93
4.9.4 VARIABLE RESISTORS ................................................................4-93
4.10 SPECIAL TOOLS AND LUBRICANTS..................................................4-94
4.10.1 SPECIAL TOOLS .........................................................................4-94
4.10.2 LUBRICANTS...............................................................................4-94
PREVENTIVE MAINTENANCE
5. PREVENTIVE MAINTENANCE SCHEDULE .............................. 5-1
5.1 PM PARTS................................................................................................5-1
REPLACEMENT AND ADJUSTMENT
6. REPLACEMENT AND ADJUSTMENT........................................ 6-1
6.1 EXTERIOR................................................................................................6-1
6.1.1 FRONT .............................................................................................6-1
6.1.2 RIGHT ..............................................................................................6-2
6.1.3 LEFT.................................................................................................6-3
6.1.4 REAR................................................................................................6-4
6.2 DOCUMENT FEEDER ..............................................................................6-5
6.2.1 COVER REMOVAL ..........................................................................6-5
6.2.2 FEED UNIT REMOVAL AND
SEPARATION ROLLER REPLACEMENT .......................................6-7
6.2.3 FEED BELT REPLACEMENT ..........................................................6-8
6.2.4 PICK-UP ROLLER REPLACEMENT................................................6-9
6.2.5 SENSOR REPLACEMENT.............................................................6-10
6.2.6 TRANSPORT BELT REPLACEMENT............................................6-14
6.2.7 MOTOR REPLACEMENT ..............................................................6-15
6.2.8 FEED-IN CLUTCH REPLACEMENT..............................................6-17
6.3 SCANNER UNIT......................................................................................6-18
6.3.1 EXPOSURE GLASS.......................................................................6-18
6.3.2 LENS BLOCK.................................................................................6-19
6.3.3 ORIGINAL SIZE SENSORS...........................................................6-20
6.3.4 EXPOSURE LAMP.........................................................................6-21
6.3.5 LAMP REGULATOR.......................................................................6-22
6.3.6 OPTICS DUST FILTER..................................................................6-23
6.3.7 SCANNER H.P. SENSOR..............................................................6-24
6.3.8 SCANNER MOTOR........................................................................6-25
6.3.9 SCANNER DRIVE WIRES .............................................................6-26
6.4 LASER UNIT ...........................................................................................6-29
6.4.1 CAUTION DECAL LOCATIONS.....................................................6-29
6.4.2 LDB AND LD FILTER REPLACEMENT .........................................6-30
6.4.3 POLYGON MIRROR MOTOR REPLACEMENT ............................6-31
6.4.4 LASER SYNCHRONIZATION DETECTOR REPLACEMENT........6-32
Rev. 9/2001
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A294/A295 vi SM
6.5 DRUM UNIT ............................................................................................6-33
6.5.1 DRUM UNIT REMOVAL AND DRUM REPLACEMENT .................6-33
6.5.2 QUENCHING LAMP REPLACEMENT ...........................................6-34
6.5.3 GRID PLATE/CHARGE CORONA WIRE/
WIRE CLEANER REPLACEMENT.................................................6-35
6.5.4 DRUM POTENTIAL SENSOR REPLACEMENT ............................6-37
6.5.5 CLEANING BLADE/ID SENSOR REPLACEMENT ........................6-38
6.5.6 CLEANING BRUSH REPLACEMENT ............................................6-39
6.5.7 PICK-OFF PAWL REPLACEMENT ................................................6-40
6.5.8 DRUM FILTER REPLACEMENT....................................................6-41
6.5.9 OPC DRUM CHANGE....................................................................6-41
6.6 DEVELOPMENT AND TONER SUPPLY ................................................6-42
6.6.1 DEVELOPMENT UNIT REMOVAL.................................................6-42
6.6.2 DEVELOPER REPLACEMENT ......................................................6-43
6.6.3 DEVELOPMENT AND AIR DUST FILTER REPLACEMENT .........6-45
6.6.4 DEVELOPMENT ENTRANCE, FRONT, & REAR SIDE SEALS ...6-46
6.6.5 TONER DENSITY SENSOR REPLACEMENT...............................6-47
6.6.6 TONER HOPPER SENSOR REPLACEMENT ...............................6-48
6.6.7 DEVELOPMENT MOTOR REPLACEMENT...................................6-49
6.6.8 DEVELOPMENT ROLLER SHAFT CLEANING .............................6-50
6.7 TRANSFER BELT UNIT ..........................................................................6-51
6.7.1 TRANSFER BELT UNIT REMOVAL/INSTALLATION ....................6-51
6.7.2 TRANSFER BELT REPLACEMENT...............................................6-53
6.7.3 TRANSFER BELT CLEANING BLADE REPLACEMTNT...............6-55
6.7.4 TRANSFER BELT BIAS BRUSH REPLACEMENT ........................6-56
6.8 PAPER FEED..........................................................................................6-57
6.8.1 PAPER TRAY REMOVAL ..............................................................6-57
6.8.2 PAPER FEED ROLLER REPLACEMENT......................................6-60
6.8.3 PAPER FEED AND VERTICAL TRANSPORT CLUTCH, AND
TRAY LIFT, PAPER FEED, AND
PAPER END SENSOR REMOVAL ...............................................6-61
6.8.4 REAR FENCE RETURN SENSOR REPLACEMENT.....................6-64
6.8.5 REAR FENCE HP SENSOR REPLACEMENT...............................6-65
6.8.6 RIGHT 1ST TRAY PAPER SENSOR REPLACMENT....................6-66
6.8.7 BOTTOM PLATE LIFT WIRE REPLACEMENT..............................6-67
6.8.8 PAPER DUST REMOVER CLEANING ..........................................6-69
6.8.9 REGISTRATION SENSOR CLEANING .........................................6-70
6.8.10 UNIVERSAL TRAY SIZE SWITCH REPLACEMENT ...................6-71
6.8.11 1ST TRAY LIFT MOTOR REMOVAL ...........................................6-72
6.8.12 LIFT MOTOR REMOVAL (2ND & 3RD TRAYS)...........................6-73
6.8.13 PAPER FEED MOTOR REMOVAL ..............................................6-74
6.8.14 RELAY MOTOR, UPPER RELAY CLUTCH,
LCT RELAY CLUTCH REMOVAL ................................................6-75
6.8.15 REGISTRATION MOTOR REMOVAL ..........................................6-76
6.8.16 COPIER FEED UNIT/DEVELOPMENT FAN MOTOR
REMOVAL....................................................................................6-77
6.8.17 LCT RELAY AND RELAY SENSOR REMOVAL ..........................6-78
6.8.18 TANDEM FEED TRAY PAPER SIZE CHANGE ...........................6-79
6.8.19 MECHANICAL SIDE REGISTRATION ADJUSTMENT ................6-82
Rev. 05/2004
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SM vii A294A295
6.9 FUSING UNIT..........................................................................................6-83
6.9.1 OIL SUPPLY & CLEANING WEB UNIT REMOVAL.......................6-83
6.9.2 HOT ROLLER UNIT REMOVAL AND
PRESSURE ROLLER REPLACEMENT.........................................6-84
6.9.3 HOT ROLLER REPLACEMENT.....................................................6-86
6.9.4 OIL SUPPLY & CLEANING WEB REPLACEMENT.......................6-88
6.9.5 WEB CLEANING ROLLER REPLACEMENT.................................6-90
6.9.6 HOT ROLLER STRIPPER REPLACEMENT..................................6-91
6.9.7 PRESSURE ROLLER STRIPPER REPLACEMENT......................6-92
6.9.8 PRESSURE ROLLER CLEANING ROLLER REPLACEMENT ......6-93
6.9.9 FUSING AND EXIT UNIT REMOVAL.............................................6-94
6.9.10 FUSING PRESSURE ADJUSTMENT ..........................................6-95
6.10 PAPER EXIT/DUPLEX UNIT.................................................................6-96
6.10.1 EXIT SENSOR REPLACEMENT..................................................6-96
6.10.2 DUPLEX UNIT REMOVAL ...........................................................6-97
6.10.3 DUPLEX UNIT INNER COVER REMOVAL..................................6-98
6.10.4 JOGGER MOTOR REPLACEMENT ............................................6-99
6.10.5 DUPLEX UNIT CLUTCH REPLACEMENT.................................6-100
6.10.6 DUPLEX ENTRANCE SENSOR REPLACEMENT.....................6-101
6.10.7 DUPLEX TRANSPORT SENSORS 2 & 3 ..................................6-102
6.10.8 DUPLEX TRANSPORT SENSOR 1/
DUPLEX INVERTER SENSOR..................................................6-103
6.11 TONER BANK.....................................................................................6-104
6.11.1 WASTE TONER BOTTLE REMOVAL........................................6-104
6.11.2 TONER BANK UNIT REMOVAL.................................................6-105
6.11.3 TONER SUPPLY MOTOR AND
TONER SUPPLY MOTOR SENSOR REMOVAL.......................6-108
6.11.4 ACCESS TO INSIDE THE TONER BANK..................................6-109
6.12 BOARDS AND OTHER ITEMS ...........................................................6-110
6.12.1 SICU BOARD .............................................................................6-110
6.12.2 HARD DISK DRIVE....................................................................6-111
6.12.3 BCU BOARD ..............................................................................6-112
6.12.4 I/O BOARD.................................................................................6-113
6.12.5 PSU............................................................................................6-114
6.12.6 CHARGE/GRID/BIAS POWER PACK........................................6-115
6.12.7 FUSING/DUPLEX MOTOR REPLACEMENT.............................6-116
6.12.8 DRUM MOTOR REPLACEMENT...............................................6-117
6.13 COPY IMAGE ADJUSTMENT: PRINTING/SCANNING......................6-118
6.13.1 PRINTING...................................................................................6-118
6.13.2 PARALLELOGRAM IMAGE ADJUSTMENT ..............................6-121
6.13.3 SCANNING.................................................................................6-123
6.13.4 ADF IMAGE ADJUSTMENT.......................................................6-124
6.14 TOUCH SCREEN CALIBRATION.......................................................6-125
Rev. 2/2000
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A294/A295 viii SM
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 ELECTRICALCOMPONENTDEFECTS.................................................7-37
7.2.1 SENSORS......................................................................................7-37
7.2.2 SWITCHES.....................................................................................7-41
7.3 BLOWNFUSE CONDITIONS.................................................................7-42
7.4 FIRMWARE HISTORY............................................................................7-43
7.4.1 A294 / A295FIRMWARE MODIFICATION HISTORY....................7-43
3,000-SHEET FINISHER B302
1. OVERALL MACHINE INFORMATION ........................................ 8-1
1.1 SPECIFICATIONS.....................................................................................8-1
1.2 MECHANICAL COMPONENT LAYOUT....................................................8-3
1.3 ELECTRICAL COMPONENT DESCRIPTION...........................................8-4
1.4 DRIVE LAYOUT........................................................................................8-6
2. DETAILED DESCRIPTIONS ....................................................... 8-7
2.1 TRAY AND STAPLER JUNCTION GATE .................................................8-7
2.2 PAPER PRE-STACKING...........................................................................8-8
2.3 JOGGER UNIT PAPER POSITIONING.....................................................8-9
2.4 STAPLER UNIT MOVEMENT .................................................................8-10
2.5 STAPLER................................................................................................8-12
2.6 FEED-OUT..............................................................................................8-14
2.7 SHIFT TRAY UP/DOWN MOVEMENT....................................................8-15
2.8 SHIFT TRAY SIDE-TO-SIDE MOVEMENT.............................................8-16
2.9 PUNCH UNIT DRIVE ..............................................................................8-17
2.10 PUNCH WASTE COLLECTION............................................................8-18
2.11 JAM CONDITIONS................................................................................8-19
3. SERVICE TABLES.................................................................... 8-20
3.1 DIP SWITCHES.......................................................................................8-20
3.2 TEST POINTS.........................................................................................8-20
3.3 FUSES.....................................................................................................8-20
4. REPLACEMENT AND ADJUSTMENT...................................... 8-21
4.1 COVER REPLACEMENT........................................................................8-21
4.2 POSITIONING ROLLER REPLACEMENT..............................................8-24
4.3 ALIGNMENT BRUSH ROLLER REPLACEMENT...................................8-25
4.4 SENSOR REPLACEMENT......................................................................8-26
4.4.1 STACK HEIGHT 1, 2 AND EXIT GUIDE OPEN SENSOR.............8-26
4.4.2 UPPER TRAY PAPER LIMIT AND EXIT SENSOR........................8-27
4.4.3 SHIFT TRAY EXIT SENSOR..........................................................8-28
Rev. 9/2001
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA