Ricoh iris Service Manual iris

Aficio Color 3006/4006/4106

(Iris/Lilac, A258/A259/A260)

Service Manual

Issued February 24, 1999, Ricoh CO., LTD.

øIMPORTANT 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

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.

øWARNING

Use of controls, or adjustment, or performance of procedures other than those specified in this manual may result in hazardous radiation exposure.

øWARNING

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

TABLE OF CONTENTS

1. OVERALL MACHINE INFORMATION ........................................	1-1
1.1 SPECIFICATIONS....................................................................................	1-1
1.1.1 MACHINE CONFIGURATION .........................................................	1-1
1.1.2 GENERAL SPECIFICATIONS .........................................................	1-2
1.1.3 PLATEN/ARDF ORIGINAL SIZE DETECTION................................	1-6
1.1.4 COPY PAPER SIZE.........................................................................	1-7
1.1.5 APS PAPER SIZES AVAILABLE .....................................................	1-8
1.1.6 NOISE EMISSION ...........................................................................	1-9
1.1.7 POWER CONSUMPTION..............................................................	1-10
1.1.8 DISPLAY EDITOR SPECIFICATIONS ..........................................	1-10
1.2 MECHANISM OVERVIEW .....................................................................	1-11
1.2.1 IMAGE GENERATION PROCESS ................................................	1-11
1.3 MAJOR UNIT LAYOUT AND PAPER FEED PATH................................	1-14
1.4 PARTS LAYOUT ....................................................................................	1-17
1.4.1 MECHANICAL COMPONENT LAYOUT ........................................	1-17
1.4.2 ELECTRICAL COMPONENT LAYOUT .........................................	1-18
1.4.3 DRIVE LAYOUT.............................................................................	1-25
1.4.5 AIR FLOW .....................................................................................	1-26
1.4.5 ELECTRICAL COMPONENT DESCRIPTIONS.............................	1-27
Printed Circuit Boards ........................................................................	1-27
Motors ................................................................................................	1-28
Fan Motors .........................................................................................	1-28
Sensors..............................................................................................	1-29
Switches.............................................................................................	1-30
Clutches .............................................................................................	1-30
Solenoids ...........................................................................................	1-31
Lamps ................................................................................................	1-31
Heaters ..............................................................................................	1-31
Thermistors ........................................................................................	1-31
Thermofuses ......................................................................................	1-31
Thermostat.........................................................................................	1-31
Counter ..............................................................................................	1-32

2. DETAILED DESCRIPTIONS .......................................................	2-1
2.1 PROCESS CONTROL..............................................................................	2-1
2.1.1 OVERVIEW .....................................................................................	2-1
2.1.2 POTENTIAL CONTROL ..................................................................	2-2
Overview ..............................................................................................	2-2
Potential Control Timing.......................................................................	2-2
2.1.3 PROCESS CONTROL SELF CHECK .............................................	2-4
Flow Chart............................................................................................	2-4
Step 1: VSG Adjustment ......................................................................	2-5
Step 2: ID Sensor Pattern Generation..................................................	2-5

I

Step 3: Sensor Pattern Potential Detection..........................................	2-6
Step 4: Sensor Pattern Density Detection............................................	2-7
Step 5: Toner Amount Calculation .......................................................	2-8
Step 6: Development Potential Calculation ..........................................	2-9
Step 7: Selecting the Optimum VD, VB, VL .......................................	2-10
2.1.4 PROCESS CONTROL γ CORRECTION .......................................	2-11
What is process control γ? .................................................................	2-11
How is it done?...................................................................................	2-11
Process control gamma correction timing ..........................................	2-12
2.2 TONER SUPPLY CONTROL..................................................................	2-13
2.2.1 TONER SUPPLY CONTROL METHOD ........................................	2-13
2.2.2 FUZZY CONTROL MODE .............................................................	2-13
2.2.3 VSP DETECTION FOR TONER SUPPLY CONTROL ..................	2-14
2.2.4 CALCULATING THE AMOUNT OF TONER ON THE DRUM.......	2-14
Fuzzy Logic Algorithm........................................................................	2-14
Image Area Ratio ...............................................................................	2-15
2.2.5 FIXED SUPPLY MODE .................................................................	2-15
2.2.6 TONER SUPPLY IN ABNORMAL SENSOR CONDITIONS ..........	2-15
2.2.7 DETECTING TONER NEAR END/END.........................................	2-16
Toner Near-end..................................................................................	2-16
Toner End ..........................................................................................	2-16
Toner near end detection ...................................................................	2-17
Toner end detection ...........................................................................	2-17
Toner end recovery ............................................................................	2-18
Toner replenishment confirmation mode............................................	2-18
2.3 DRUM UNIT............................................................................................	2-19
2.3.1 OVERVIEW ...................................................................................	2-19
2.3.2 DRIVE MECHANISM .....................................................................	2-20
2.3.3 DRUM CHARGE............................................................................	2-21
2.3.4 DRUM CLEANING.........................................................................	2-22
2.3.5 PCC ...............................................................................................	2-22
2.3.6 QUENCHING .................................................................................	2-23
2.3.7 CARRIER CATCHER ....................................................................	2-23
2.4 SCANNER UNIT.....................................................................................	2-24
2.4.1 OVERVIEW ...................................................................................	2-24
2.4.2 SCANNER .....................................................................................	2-25
2.4.3 SCANNER DRIVE .........................................................................	2-26
2.4.4 COLOR CCD .................................................................................	2-27
2.4.5 WHITE PLATE SCANNING ...........................................................	2-28
2.4.6 SCANNER IPU BOARD.................................................................	2-28
2.4.7 ORIGINAL SIZE DETECTION .......................................................	2-29
2.4.8 OTHERS........................................................................................	2-31
Anti-condensation Heater...................................................................	2-31
Fans ...................................................................................................	2-31
2.5 IMAGE PROCESSING ...........................................................................	2-32
2.5.1 OVERVIEW ...................................................................................	2-32
2.5.2 SCANNER SECTION BLOCK DIAGRAM......................................	2-33
2.5.3 SCANNER SECTION ....................................................................	2-34
Photoelectric Conversion (by the CCD) .............................................	2-34

II

Signal Processing (in the Analog ASIC).............................................	2-34
A/D Conversion ..................................................................................	2-34
Shading Circuit...................................................................................	2-35
D/A Conversion ..................................................................................	2-37
Scan Line Correction..........................................................................	2-37
2.5.4 IPU SECTION BLOCK DIAGRAM .................................................	2-38
2.5.5 IPU SECTION ................................................................................	2-39
Picture Element Correction and Scanner Gamma Correction............	2-39
ACS (Auto Color Selection)................................................................	2-41
Auto Letter/Photo Separation.............................................................	2-42
Filtering and Color Conversion...........................................................	2-44
Changes in UCR Ratio with Image Density and Copy Mode .............	2-50
UCA (Under Color Addition)...............................................................	2-50
Main Scan Magnification ....................................................................	2-51
Mirror Image.......................................................................................	2-51
Gamma (γ) Correction (Printer Gamma) ............................................	2-52
Area Editing........................................................................................	2-55
CPU ...................................................................................................	2-55
IPU Board Test...................................................................................	2-55
2.6 LASER EXPOSURE ...............................................................................	2-56
2.6.1 OVERVIEW ...................................................................................	2-56
2.6.2 OPTICAL PATH .............................................................................	2-57
Overview ............................................................................................	2-57
F-theta Lenses and the BTL...............................................................	2-59
Laser Synchronizing Detector Boards................................................	2-60
Gradation Control (Laser Pulse Width and Laser Power Modulation) 2-61
600 DPI Writing ..................................................................................	2-62
Auto Power Control (APC) .................................................................	2-63
LD Safety Switches ............................................................................	2-64
2.6 DEVELOPMENT UNIT ...........................................................................	2-65
2.6.1 OVERVIEW ...................................................................................	2-65
2.6.2 REVOLVER MECHANISM.............................................................	2-66
Overview ............................................................................................	2-66
Revolver Drive....................................................................................	2-67
Revolver Home Position Detection.....................................................	2-68
2.6.3 DEVELOPMENT MECHANISMS...................................................	2-69
Overview ............................................................................................	2-69
Development Drive.............................................................................	2-70
Developer Agitation............................................................................	2-70
Toner Agitation...................................................................................	2-71
Development Bias ..............................................................................	2-72
Toner Supply Mechanism ..................................................................	2-73
Toner Cartridge Detection..................................................................	2-74
Incorrect Toner Installation Prevention...............................................	2-74
Toner End Detection ..........................................................................	2-75
2.7 TRANSFER BELT UNIT .........................................................................	2-76
2.7.1 OVERVIEW ...................................................................................	2-76
2.7.2 BELT TRANSFER MECHANISMS ................................................	2-77
Transfer Belt Drive .............................................................................	2-77

III

Transfer Belt Release Lever...............................................................	2-78
Belt Transfer Bias...............................................................................	2-79
Belt Mark Detection............................................................................	2-80
Transfer Belt Cleaning Mechanism ....................................................	2-81
2.7.3 PAPER TRANSFER MECHANISM................................................	2-85
Paper Transfer Unit Contact/Release Mechanism .............................	2-85
Paper Transfer Bias Roller Drive........................................................	2-86
Paper Transfer Bias Roller Cleaning..................................................	2-87
Paper Transfer Bias ...........................................................................	2-88
2.7.4 PAPER SEPARATION MECHANISM............................................	2-90
2.8 PAPER FEED AND REGISTRATION.....................................................	2-91
2.8.1 OVERVIEW ...................................................................................	2-91
2.8.2 PAPER TRAY ................................................................................	2-92
Paper Feed/Separation ......................................................................	2-92
Separation and Pick-Up Roller Release.............................................	2-92
Paper Lift............................................................................................	2-93
Paper End Detection ..........................................................................	2-94
Paper Size Setting .............................................................................	2-94
Tray Paper Height Sensor..................................................................	2-95
2.8.3 BY-PASS TRAY.............................................................................	2-96
By-pass Table Mechanism.................................................................	2-96
Paper Feed/Separation ......................................................................	2-96
Paper End Detection ..........................................................................	2-97
Paper Size Detection .........................................................................	2-98
Pick-up Roller.....................................................................................	2-99
2.8.4 REGISTRATION MECHANISM AND PAPER FEED DRIVE .........	2-99
2.9 PAPER TRANSPORT, FUSING, AND PAPER EXIT ...........................	2-100
2.9.1 MAJOR COMPONENTS..............................................................	2-100
2.9.2 DRIVE MECHANISM ...................................................................	2-101
2.9.3 FUSING UNIT ..............................................................................	2-102
Fusing Mechanism ...........................................................................	2-102
Fusing Temperature Control ............................................................	2-102
Fusing/Pressurization Mechanism ...................................................	2-103
Oil Supply Mechanism .....................................................................	2-104
Cleaning Mechanism........................................................................	2-105
2.9.4 INVERTER AND PAPER EXIT MECHANISMS ...........................	2-106
Paper Exit.........................................................................................	2-106
Junction Gate Mechanism (A259/A260 Only) ..................................	2-106
Paper Exit Door Mechanism (A259/A260 Only) ...............................	2-107
2.10 DUPLEX TRAY (A259/A260 COPIERS ONLY) ..................................	2-108
2.10.1 OVERVIEW ...............................................................................	2-108
2.10.2 DRIVE MECHANISM .................................................................	2-109
2.10.3 PAPER FEED INTO THE DUPLEX TRAY.................................	2-110
1. Duplex Stacking ...........................................................................	2-110
2. Paper Feed from the Duplex Tray ................................................	2-110
3. Duplex Entrance To Duplex Tray .................................................	2-111
2.10.4 JOGGER MECHANISM.............................................................	2-112
2.10.5 PAPER FEED FROM THE DUPLEX TRAY...............................	2-113
Bottom Plate Lift Mechanism ...........................................................	2-113

IV

Paper Feed-out mechanism.............................................................	2-114
2.11 OTHERS.............................................................................................	2-115
2.11.1 SYSTEM CONFIGURATION .....................................................	2-115
2.11.2 POWER STATES ......................................................................	2-116
Energy Saver Mode .........................................................................	2-116
Power-off (Sleep) State....................................................................	2-116
Main Power Switch Off State ...........................................................	2-117
Power State Transition Diagram ......................................................	2-117
2.11.3 TOUCH PANEL (A259/A260 MACHINES ONLY)......................	2-118
2.11.4 BUS SWITCH BOARD (OPTIONAL) .........................................	2-119

3. INSTALLATION PROCEDURE ...................................................		3-1
3.1	INSTALLATION REQUIREMENTS ..........................................................	3-1
	3.1.1 DIMENSIONS ..................................................................................	3-2
	3.1.2 ENVIRONMENTAL REQUIREMENTS ............................................	3-3
	3.1.3 MINIMUM SPACE REQUIREMENTS..............................................	3-5
	3.1.4 POWER REQUIREMENTS..............................................................	3-6
3.2	COPIER INSTALLATION..........................................................................	3-7
	3.2.1 ACCESSORY CHECK.....................................................................	3-7
	3.2.2 COPIER INSTALLATION PROCEDURE.........................................	3-8
	Tape Removal......................................................................................	3-8
	Removing the Inner Transfer Cover and Paper Transfer
	Locking Screw..................................................................................	3-10
	Developer Installation.........................................................................	3-12
	Pressure Release Lever Set-up .........................................................	3-17
	Installing Fusing Silicone Oil ..............................................................	3-18
	Initialization and Function Checks......................................................	3-19
	Setting the Tray Paper Size ...............................................................	3-20
	Setting the Language and Unit of Measurement................................	3-21
	Resetting the Counter ........................................................................	3-21
	3.2.2 RELOCATION PROCEDURE........................................................	3-22
3.3	PAPER TRAY UNIT (A832/A833)...........................................................	3-23
	3.3.1 ACCESORY CHECK .....................................................................	3-23
	3.3.2 INSTALLATION .............................................................................	3-24
	TRAY HEATER (OPTION).................................................................	3-27
3.4	PLATEN COVER (A749-01) ...................................................................	3-28
3.5	ARDF (A663) ..........................................................................................	3-29
	3.5.1 ACCESSORY CHECK...................................................................	3-29
	3.5.2 INSTALLATION .............................................................................	3-30
3.6	20-BIN SORTER STAPLER (A834)........................................................	3-31
	3.6.1 ACCESSORY CHECK...................................................................	3-31
	3.6.2 INSTALLATION .............................................................................	3-32
3.7	10-BIN SORTER STAPLER (A555)........................................................	3-36
	3.7.1 ACCESSORY CHECK...................................................................	3-36
	3.7.2 INSTALLATION .............................................................................	3-37
3.8	3-BIN SORTER (A849) ...........................................................................	3-42

V

3.8.1 ACCESSORY CHECK...................................................................		3-42
3.8.2 INSTALLATION .............................................................................		3-43
3.9 FILM PROJECTOR TABLE (A702-19) ...................................................		3-45
3.10	FILM PROJECTOR UNIT (A846) .........................................................	3-47
3.10.1 ACCESSORY CHECK.................................................................		3-47
3.10.2 INSTALLATION ............................................................................		3-48
3.11	CONTROLLER INTERFACE TYPE E (A848).......................................	3-55
3.12	OTHERS...............................................................................................	3-59
3.12.1 ORIGINAL TABLE INSTALLATION PROCEDURE .....................		3-59
3.12.2 KEY COUNTER HOLDER INSTALLATION PROCEDURE .........		3-60

4. SERVICE TABLES ......................................................................	4-1
4.1 SERVICE PROGRAM (SP) MODES ........................................................	4-1
4.1.1 HOW TO ENTER SP MODE............................................................	4-1
4.2 SP MODE TYPES ....................................................................................	4-1
4.3 SP MODE TABLE.....................................................................................	4-2
4.4 SP MODE ADDITIONAL NOTES .............................................................	4-3
4.4.1 SP5-804 OUTPUT CHECK............................................................	4-3
4.4.2 SP5-803 INPUT CHECK..................................................................	4-5
Printer ..................................................................................................	4-5
Sorter ...................................................................................................	4-7
ARDF ...................................................................................................	4-8
4.4.3 SP5-955-018 TEST PATTERN SELECTION...................................	4-8
4.4.4 5-955-001 LD_PWM (DOT, LINE) ...................................................	4-8
4.4.5 5-955-002 TO 5-955-016 LD_PWM (16-GRADATION) ...................	4-9
4.4.6 5-995-017 LD_PWM (COLOR PATCHES) ......................................	4-9
4.5 USER TOOL ...........................................................................................	4-10
4.5.1 USER TOOL MENU.......................................................................	4-10
System settings..................................................................................	4-10
COPY FEATURES.............................................................................	4-11
4.5.2 SYSTEM SETTINGS .....................................................................	4-12
4.5.3 COPY FEATURES.........................................................................	4-16
General Features ...............................................................................	4-16
Image Adjustment ..............................................................................	4-19
Set Favorite Keys...............................................................................	4-21
Special Modes....................................................................................	4-21
4.6 TP/SW/LED/FUSE..................................................................................	4-22
4.6.1 MAIN CONTROL BOARD TEST POINTS .....................................	4-22
4.6.2 SCANNER IPU BOARD TEST POINTS ........................................	4-23
4.6.3 LD MAIN CONTROL BOARD TEST POINTS................................	4-24
4.6.4 I/O CONTROL BOARD TEST POINTS .........................................	4-25
4.6.5 SWITCH SPECIFICATIONS ..........................................................	4-28
Scanner IPU Board ............................................................................	4-28
4.6.6 LED SPECIFICATIONS .................................................................	4-28
4.6.7 FUSE SPECIFICATIONS ..............................................................	4-29
PSU (US model).................................................................................	4-29
PSU (European/Asian Model) ............................................................	4-30

VI

5. PREVENTIVE MAINTENANCE ...................................................		5-1
5.1	PM PROCEDURES ..................................................................................	5-1
	5.1.1 PM-RELATED COUNTERS.............................................................	5-1
	5.1.2 REGULAR PREVENTIVE MAINTENANCE FLOW DIAGRAM ........	5-3
5.2	REGULAR PM ITEMS ..............................................................................	5-7
	Regular PM Table ................................................................................	5-7

6. REPLACEMENT AND ADJUSTMENT........................................	6-1
6.1 COVERS, FANS, AND FILTERS..............................................................	6-1
6.1.1 FRONT, INNER, AND INNER TRANSFER COVERS .....................	6-1
6.1.2 REAR COVERS...............................................................................	6-2
6.1.3 RIGHT COVERS..............................................................................	6-3
6.1.4 LEFT COVERS ................................................................................	6-3
6.1.5 EXPOSURE GLASS ........................................................................	6-4
6.1.6 OPERATION PANEL .......................................................................	6-4
6.1.7 UPPER COVERS ............................................................................	6-4
6.1.8 USED TONER TANK.......................................................................	6-5
6.1.9 CHARGE CORONA FAN FILTER ...................................................	6-5
6.1.10 MAIN EXHAUST FAN FILTER.......................................................	6-6
6.1.11 SCANNER EXHAUST FAN FILTER ..............................................	6-6
6.1.12 MAIN EXHAUST FAN....................................................................	6-7
6.2 DRUM UNIT..............................................................................................	6-8
6.2.1 PULLING OUT THE REVOLVER/DRUM DRAWER......................	6-10
6.2.2 DRUM REPLACEMENT ................................................................	6-12
6.2.3 CLEANING BLADE AND PCC WIRE REPLACEMENT.................	6-14
6.2.4 CLEANING BRUSH REPLACEMENT ...........................................	6-15
6.2.5 LUBRICANT BAR REPLACEMENT ..............................................	6-16
6.2.6 CHARGE CORONA GRID AND WIRE REPLACEMENT ..............	6-17
6.2.7 POTENTIAL SENSOR REPLACEMENT .......................................	6-18
6.3 SCANNER UNIT.....................................................................................	6-19
6.3.1 EXPOSURE LAMP REPLACEMENT ............................................	6-19
6.3.2 SBU REPLACEMENT....................................................................	6-20
6.3.3 SCANNER IPU BOARD REPLACEMENT.....................................	6-21
6.3.4 SCANNER WIRE/SCANNER MOTOR REPLACEMENT ..............	6-22
6.3.5 APS SENSORS .............................................................................	6-26
6.3.6 SCANNER HP SENSOR ...............................................................	6-27
6.4 COPY IMAGE ADJUSTMENT ................................................................	6-28
6.4.1 PRINTER GAMMA ADJUSTMENT................................................	6-28
Setting the KCMY standard values ....................................................	6-28
Gamma Data Print Out.......................................................................	6-28
KCMY color balance adjustment ........................................................	6-28
Adjustment procedure ........................................................................	6-29
Standard Copy Quality .......................................................................	6-30
6.4.2 ACC TARGET ADJUSTMENT.......................................................	6-31
6.4.3 MAIN SCAN DOT POSITION CORRECTION ...............................	6-32

VII

6.5 LASER OPTICS SECTION.....................................................................	6-34
6.5.1 POLYGON MIRROR MOTOR REPLACEMENT............................	6-35
6.5.2 LASER SYNCHRONIZING DETECTOR BOARD AND LD UNIT
REPLACEMENT ......................................................................................	6-37
6.5.3 SQUARENESS ADJUSTMENT .....................................................	6-38
6.6 DEVELOPMENT UNIT ...........................................................................	6-40
6.6.1 REPLACING THE DEVELOPER ...................................................	6-40
Developer Collection Procedure.........................................................	6-40
Installing New Developer ...................................................................	6-43
6.6.2 POST DEVELOPER COLLECTION PROCEDURE.......................	6-46
6.6.3 DEVELOPMENT UNIT REPLACEMENT.......................................	6-47
6.6.4 TONER COLLECTION TRAY CLEANING.....................................	6-48
6.7 TRANSFER BELT UNIT .........................................................................	6-49
6.7.1 TRANSFER BELT SECTION.........................................................	6-49
Transfer Belt and Cleaning Unit .........................................................	6-49
Cleaning Blade Replacement.............................................................	6-52
Lubricant Bar and Lubricant Brush Replacement...............................	6-53
6.7.2 PAPER TRANSFER UNIT .............................................................	6-54
Lubricant Bar And Blade Replacement ..............................................	6-54
Paper Separation Corona Wire Replacement ....................................	6-54
Transfer Roller Replacement .............................................................	6-55
6.8 PAPER FEED AND REGISTRATION SECTION....................................	6-56
6.8.1 BY-PASS FEED TABLE REMOVAL ..............................................	6-56

6.8.2BY-PASS PAPER WIDTH DETECTION BOARD REPLACEMENT6-56

6.8.3BY-PASS FEED, PICK-UP AND SEPARATION ROLLERS,

AND TORQUE LIMITER REPLACEMENT ....................................	6-57
6.8.4 BY-PASS FEED UNIT REPLACEMENT........................................	6-58
6.8.5 REGISTRATION SENSOR REPLACEMENT ................................	6-58
6.8.6 VERTICAL TRANSPORT DOOR REPLACEMENT.......................	6-59
6.8.7 PAPER TRAY PICK-UP, PAPER FEED, AND SEPARATION
ROLLER REPLACEMENT.............................................................	6-59
6.8.8 PAPER FEED UNIT AND CLUTCH REPLACEMENT ...................	6-60
6.8.9 COPY IMAGE AREA ADJUSTMENT ............................................	6-61
Preparation ........................................................................................	6-61
Leading Edge Registration.................................................................	6-62
Side-to-side Registration....................................................................	6-63
6.9 PAPER TRANSPORT, FUSING, AND PAPER EXIT SECTIONS ..........	6-64
6.9.1 FUSING UNIT REMOVAL .............................................................	6-64
6.9.2 TRANSPORT UNIT REMOVAL .....................................................	6-65
6.9.3 FUSING UNIT TOP COVER REMOVAL .......................................	6-66
6.9.4 OIL SUPPLY PAD AND OIL BLADE REPLACEMENT..................	6-67
6.9.5 HOT ROLLER THERMOFUSE REPLACEMENT ..........................	6-68
6.9.6 FUSING UNIT DISASSEMBLY......................................................	6-68
6.9.7 CLEANING ROLLER SCRAPER CLEANING................................	6-69
6.9.8 HOT ROLLER THERMISTOR REPLACEMENT............................	6-70
6.9.9 HOT ROLLER FUSING LAMP REPLACEMENT ...........................	6-71
6.9.10 HOT ROLLER AND CLEANING ROLLER REPLACEMENT
AND CLEANING...........................................................................	6-72

VIII

6.9.11 PRESSURE ROLLER AND PRESSURE ROLLER FUSING
LAMP...........................................................................................	6-73
6.9.12 PRESSURE ROLLER THERMOFUSE AND THERMISTOR
REPLACEMENT ..........................................................................	6-74
6.9.13 NIP BAND WIDTH ADJUSTMENT ..............................................	6-75
6.9.14 CAUTIONS TO BE TAKEN WHEN USING A FUSING UNIT
THAT HAS BEEN IN STOCK FOR A LONG PERIOD..................	6-76
6.10 DUPLEX UNIT ......................................................................................	6-77
6.10.1 DUPLEX UNIT REMOVAL...........................................................	6-77
6.10.2 SEPARATION ROLLER REPLACEMENT...................................	6-77
6.10.3 FEED ROLLER REPLACEMENT ................................................	6-78
6.10.4 DUPLEX FEED MOTOR REPLACEMENT ..................................	6-79
6.11 SYSTEM AND ELECTRONICS ............................................................	6-81
6.11.1 IPU PROGRAM DOWNLOADING ...............................................	6-81
6.11.2 MAIN PROGRAM DOWNLOADING ............................................	6-82
6.11.3 NV-RAM UPLOADING AND DOWNLOADING............................	6-83
Upload/Download Procedure .............................................................	6-83
6.11.4 RAM CLEAR ................................................................................	6-84
RAM Clear Procedure ........................................................................	6-84
Precautions when replacing the NV-RAM ..........................................	6-85
6.11.5 TOUCH PANEL CALIBRATION (A259/A260 ONLY)...................	6-86

7. TROUBLESHOOTING.................................................................		7-1
7.1	SERVICE CALL (SC) ERRORS ...............................................................	7-1
	7.1.1 SC TYPES AND RESETTING PROCEDURES ...............................	7-1
7.2	SC CODE TABLE .....................................................................................	7-2
7.3	PROCESS CONTROL ERROR CONDITIONS ........................................	7-3
	7.3.1 PROCESS CONTROL SELF-CHECK RESULTS (SP3-975-00) .....	7-3
	7.3.2 DEVELOPER SETUP RESULTS (SP3-964-00) ..............................	7-4
	7.3.3 SELF-CHECK PROCESS CONTROL RELATED SCS ...................	7-5
7.4	DRUM LIGHT FATIGUE ...........................................................................	7-6

IX

OPTIONS

ARDF (A663)

1.	SPECIFICATIONS.................................................................		A663-1
2.	COMPONENT LAYOUT ........................................................		A663-2
	2.1	MECHANICAL COMPONENTS..........................................................	A663-2
	2.2	ELECTRICAL COMPONENTS ...........................................................	A663-3
3.	ELECTRICAL COMPONENT DESCRIPTION .......................		A663-4
4.	DETAILED DESCRIPTIONS .................................................		A663-5
	4.1	ORIGINAL PICK-UP MECHANISM ....................................................	A663-5
	4.2	SEPARATION AND PAPER FEED MECHANISM..............................	A663-6
	4.3	FRICTION BELT DRIVE MECHANISM ..............................................	A663-7
	4.4	ORIGINAL SIZE DETECTION ............................................................	A663-8
	4.5	PAPER TRANSPORT MECHANISM..................................................	A663-9
	4.6	THICK/THIN ORIGINAL MODES .....................................................	A663-10
	4.7	ORIGINAL FEED-OUT MECHANISM...............................................	A663-11
	4.8	TWO-SIDED ORIGINAL FEED MECHANISM..................................	A663-12
5.	TIMING CHARTS ................................................................		A663-13
	5.1	A4 SIDEWAYS: 1 SIDED ORIGINAL ...............................................	A663-13
	5.2	COMBINE 2 ORIGINAL MODE ........................................................	A663-14
	5.3	A4 SIDEWAYS: DUPLEX .................................................................	A663-15
6.	SERVICE TABLES ..............................................................		A663-16
	6.1	DIP SWITCHES................................................................................	A663-16
	6.2	VARIABLE RESISTORS...................................................................	A663-17
	6.3	LED...................................................................................................	A663-17
	6.4	FUSE ................................................................................................	A663-17
7.	REPLACEMENT AND ADJUSTMENT................................		A663-18
	7.1	TRANSPORT BELT REPLACEMENT ..............................................	A663-18
	7.2	FEED ROLLER REPLACEMENT .....................................................	A663-19
	7.3	FRICTION BELT REPLACEMENT ...................................................	A663-20
	7.4	ORIGINAL SET AND WIDTH SENSOR REPLACEMENT................	A663-21
	7.5	VERTICAL REGISTRATION ADJUSTMENT ...................................	A663-22
		7.5.1 ONE SIDED THIN ORIGINAL MODE ......................................	A663-22
		7.5.2 TWO SIDED ORIGINAL MODE...............................................	A663-23
	7.6	SIDE-TO-SIDE REGISTRATION (DF POSITIONING)
		ADJUSTMENT..................................................................................	A663-24

X

PAPER TRAY UNIT (A832/A833)

1. PRODUCT OVERVIEW ..........................................................			A833-1
1.1	SPECIFICATIONS..............................................................................		A833-1
1.2	COMPONENT DESCRIPTION ...........................................................		A833-1
	1.2.1 PAPER FEED MECHANISM .....................................................		A833-1
1.3	COMPONENT LAYOUTS...................................................................		A833-2
	1.3.1 ELECTRICAL COMPONENT LAYOUT .....................................		A833-2
	1.3.2 DRIVE LAYOUT.........................................................................		A833-3
	1.3.3 DISASSEMBLY AND ADJUSTMENT PROCEDURES..............		A833-4
	(1)	Pick-up, paper feed, and separation rollers ..............................	A833-4
	(2)	Bank paper feed and tray lift motors .........................................	A833-4
	(3)	Paper feed clutch......................................................................	A833-5
	(3)	Relay clutch ..............................................................................	A833-5
	(4)	Paper feed unit .........................................................................	A833-6

20-BIN SORTER (A834)

1. OVERALL MACHINE INFORMATION ...................................	A834-1
1.1 SPECIFICATIONS..............................................................................	A834-1
1.2 COMPONENT LAYOUT .....................................................................	A834-3
1.2.1 MECHANICAL COMPONENT LAYOUT....................................	A834-3
1.2.2 DRIVE LAYOUT.........................................................................	A834-4
1.2.3 ELECTRICAL COMPONENT DESCRIPTION ...........................	A834-5
2. DETAILED DESCRIPTIONS ..................................................	A834-6
2.1 BASIC OPERATION...........................................................................	A834-6
2.1.1 NORMAL MODE AND SORT/STACK MODE............................	A834-6
Normal (Proof) Mode......................................................................	A834-6
Sort Mode ......................................................................................	A834-6
Stack Mode ....................................................................................	A834-7
2.1.2 STAPLE MODE .........................................................................	A834-8
Mechanism.....................................................................................	A834-8
Automatic Stapling .........................................................................	A834-8
Manual Stapling .............................................................................	A834-8
2.1.3 BIN DRIVE MECHANISM ..........................................................	A834-9
2.1.4 BIN HOME POSITION .............................................................	A834-10
2.1.5 JOGGER MECHANISM...........................................................	A834-11
2.1.6 GRIP ASSEMBLY....................................................................	A834-12
2.1.7 STAPLER UNIT .......................................................................	A834-13
2.1.8 STAPLER SWITCH .................................................................	A834-14
Staple Mode Disabling Conditions ...............................................	A834-14
2.1.9 PAPER FEED AND MISFEED DETECTION TIMING..............	A834-15
Proof ModeA4 sideways, five copies, 150 mm/s ..........................	A834-15
Sorter ModeA4 sideways, two copies a of two-page original,
150 mm/s .....................................................................................	A834-15

XI

	Staple ModeA4 sideways, two copies of a two-page original, after
	sorting, 150 mm/s.........................................................................	A834-16
	2.1.10 JAM DETECTION ..................................................................	A834-17
	Paper JamA4 sideways................................................................	A834-17
	Staple Jam ...................................................................................	A834-17
3. REPLACEMENT AND ADJUSTEMENT ..............................		A834-18
3.1	EXTERIOR COVER REMOVAL .......................................................	A834-18
	3.1.1 FRONT COVER.......................................................................	A834-18
	3.1.2 REAR COVER .........................................................................	A834-18
	3.1.3 TOP COVER............................................................................	A834-18
	3.1.4 LOWER COVER ......................................................................	A834-18
3.2	STAPLER UNIT REMOVAL..............................................................	A834-19
3.3	GRIP ARM REPLACEMENT ............................................................	A834-20
3.4	BIN REMOVAL .................................................................................	A834-21
3.5	TRANSPORT MOTOR REMOVAL...................................................	A834-22
10-BIN SORTER (A555)
1. SPECIFICATIONS.................................................................		A555-1
2. COMPONENT LAYOUT ........................................................		A555-3
2.1	MECHANICAL COMPONENT LAYOUT.............................................	A555-3
2.2	DRIVE LAYOUT .................................................................................	A555-4
2.3	ELECTRICAL COMPONENT DESCRIPTION ....................................	A555-5
3. BASIC OPERATION...............................................................		A555-6
3.1	NORMAL MODE AND SORT/STACK MODE.....................................	A555-6
3.2	STAPLE MODE ..................................................................................	A555-8
3.3	BIN DRIVE MECHANISM .................................................................	A555-10
3.4	BIN HOME POSITION......................................................................	A555-11
3.5	JOGGER MECHANISM....................................................................	A555-12
3.6	GRIP ASSEMBLY.............................................................................	A555-13
3.7	STAPLER UNIT ................................................................................	A555-14
3.8	STAPLER SWITCH ..........................................................................	A555-15
3.9	PAPER FEED AND MISFEED DETECTION TIMING ......................	A555-16
3.10 JAM DETECTION...........................................................................		A555-18
4. SERVICE TABLES ...............................................................		A555-19
4.1	DIP SWITCHES................................................................................	A555-19
4.2	TEST POINTS ..................................................................................	A555-20
4.3	LED...................................................................................................	A555-20
4.4	VARIABLE RESISTOR.....................................................................	A555-20
5. REPLACEMENT AND ADJUSTMENT.................................		A555-21
5.1	EXTERIOR COVER REMOVAL .......................................................	A555-21
5.2	STAPLE UNIT REMOVAL ................................................................	A555-21
5.3	GRIP ARM REPLACEMENT ............................................................	A555-22

XII

5.4	BIN REPLACEMENT ........................................................................	A555-23
5.5	TRANSPORT MOTOR REPLACEMENT..........................................	A555-24
5.6	BIN JAM SENSOR ADJUSTMENT ..................................................	A555-25

3-BIN SORTER (A849)
1.	SPECIFICATIONS..................................................................		A849-1
2.	COMPONENT LAYOUT .........................................................		A849-2
	2.1	MECHANICAL COMPONENT LAYOUT.............................................	A849-2
	2.2	DRIVE LAYOUT .................................................................................	A849-3
	2.3	ELECTRICAL COMPONENT DESCRIPTION ....................................	A849-4
3.	DETAILED SECTION DESCRIPTIONS..................................		A849-5
	3.1	BASIC OPERATION...........................................................................	A849-5
		3.1.1 FACE-UP MODE .......................................................................	A849-5
		3.1.2 FACE-DOWN MODE .................................................................	A849-6
	3.2	1ST BIN UP/DOWN MECHANISM .....................................................	A849-7
	3.3	1ST BIN SIDE-TO-SIDE SHIFT MECHANISM ...................................	A849-8
	3.4	PAPER FEED AND MISFEED DETECTION TIMING ........................	A849-9
	3.5	JAM DETECTION.............................................................................	A849-11
4.	REPLACEMENT AND ADJUSTMENT.................................		A849-12
	4.1	EXTERIOR COVER AND BIN REMOVAL........................................	A849-12
	4.2	TRAY LIFT/SHIFT MOTOR ASSEMBLY REMOVAL .......................	A849-13
	4.3	ENTRANCE MOTOR REPLACEMENT ............................................	A849-14
	4.4	EXIT MOTOR REPLACEMENT........................................................	A849-15
	4.5	STACK HEIGHT SENSOR AND 1ST EXIT
		SENSOR REPLACEMENT...............................................................	A849-16
	4.6	2ND / 3RD EXIT SENSOR AND INVERTER
		SENSOR REPLACEMENT...............................................................	A849-18
FPU (A846)
1.	SPECIFICATIONS..................................................................		A846-1
2.	ELECTRICAL COMPONENT LAYOUT		A846-2
	AND DESCRIPTIONS ...........................................................
3.	SECTIONAL DESCRIPTIONS................................................		A846-3
	3.1	OVERVIEW ........................................................................................	A846-3
	3.2	SHADING ...........................................................................................	A846-4
	3.3	MIRROR UNIT....................................................................................	A846-5

XIII

APPENDIX
1. TIMMING CHART
A4 SIZE B/W MODE ......................................................................................	1
A4 SIZE FULL COLOR MODE ......................................................................	2
A3 SIZE B/W MODE ......................................................................................	3
A3 SIZE FULL COLOR MODE ......................................................................	4
2. SP MODE TABLE
3. SC CODE TABLE

XIV

24 February, 1999

SPECIFICATIONS

1. OVERALL MACHINE INFORMATION

1.1 SPECIFICATIONS

1.1.1 MACHINE CONFIGURATION

		A258	A259			A260
Operation Panel	40-digit 4-line LCD		144 mm x 192 mm (10.4 inch)
	Hard Key Type		Color Touch Panel Display
Paper Tray Unit		500 sheets	Duplex
Edit Function		No	No			Yes

Overall Information

Platen Cover	ARDF
A749-00	A663

Sorter/Stapler

A555

FPU A846

Copier

A834 FPU Table A702-19

I/F A848 A849

Paper Tray Unit (500 sheets per tray)

		A833				A832

A259V501.WMF

1-1

SPECIFICATIONS 24 February, 1999

1.1.2 GENERAL SPECIFICATIONS

Configuration:	Desktop
Copy Process:	Dry electrostatic transfer system
Resolution: 400 dpi; Printer mode 600 dpi
Gradations:	256 gradations
Originals:	Sheet/Book/Object
Original Size:	Maximum 11" x 17" /A3

Copy Paper Size:

	Maximum	Minimum
Paper Tray Feed	11" x 17" /A3	51/2 x 81/2 /A5(L)
(A258 only)
Bypass Feed	12" x 18"/305 mm x 457 mm	A6(L)

Copy Paper Weight:

Paper Tray Feed	17 to 28 lbs.	64 to 105 g/m2
Bypass Feed	14 to 43 lbs.	52 to 160 g/m2
Auto Duplex Tray	17 to 28 lbs.	64 to 105 g/m2

Reproduction Ratios:

	81/2" x 11"LT/11" x 17"DLT	A4/A3 version
	version
Enlargement	121, 129, 155, 200, 400%	115, 122, 141, 200, 400%
Full size	100%	100%
Reduction	25, 50, 65, 73, 78, 85, 93%	25, 50, 65, 71, 75, 82, 93%
Programmable	2 user ratios	2 user ratios

Zoom: From 25% to 400 % in 1% steps.

1-2

24 February, 1999 SPECIFICATIONS

Copying Speed:

	81/2" x 11" (S) /A4	11" x 17"/A3
Normal Mode
Full Color (4 scans)	6 cpm	3 cpm
Single Color (C, M Y, K)	A258: 21 cpm	A258: 11 cpm
	A259/260: 28 cpm	A259/260: 14 cpm
Single Color (B, G)	9 cpm	4.5 cpm
Single Color (R)	7 cpm	3.5 cpm
OHP/Thick Paper Mode
Full Color (4 scans)	3 cpm	1.5 cpm
Single Color (C, M Y, K)	5 cpm	2.5 cpm
Single Color (G, B)	4 cpm	2 cpm
Single Color (R)	3.5 cpm	1.5 cpm

Duplexing: Same as Normal Mode speed in the above table

Printer Speed: 2/3 the speeds shown in the above table

First Copy Time (A258/259/260):

	81/2" x 11" (S) /A4
Normal Mode
Full Color (4 scans)	22.4 seconds
Single Color (K)	8 seconds
Single Color (C, M, Y)	10 seconds
Single Color (B, G, R)	16 seconds
OHP/Thick Paper Mode
Full Color (4 scans)	35 seconds
Single Color (K)	23 seconds
Single Color (C, M, Y)	25 seconds
Single Color (B, G, R)	27 seconds

Warm-up Time: Approx. 7 minutes (at 68°F / 20°C)

Overall Information

1-3

SPECIFICATIONS	24 February, 1999
Duplexing:
Basic Manual Duplex	Manual duplexing in full color and single
Model (A258):	color modes
Basic Auto Duplex	Manual & auto duplexing in full color and
Model (A259):	single color modes
Edit Auto Duplex Model	Manual & auto duplexing in full color and
(A260):	single color modes
	Duplexing can be done on 64-105 g/m2 paper.
	Manual duplexing can be done through the
	bypass table only, and the user should press
	the Duplex Side 2 key before copying the reverse
	side.

Non-Reproduction Area:

Leading Edge:

Side:

Trailing Edge:

Copy Number Input:

Copy Number Input

(Auto Duplex):

Image Density:

Automatic Reset:

Paper Capacity:

0.2" ± 0.08" (5 mm ± 2 mm)

0.08" ± 0.08" (2 mm ± 2 mm)/

Total less than 0.16" (4 mm)

2.0 mm + 2.0/-1.5 mm

Number keys, 1 to 99

Number keys
Single Color -	1 to 50: smaller than A3, 11" x 17"
	1 to 30: A3, 11" x17"
Full Color	1 to 20: all sizes

Auto/Manual (9 steps)

Yes (10 to 990 seconds or Off)

Tray:

500 sheets x 1 tray

(Basic Manual Duplex Model: A258)

Bypass:
Normal paper (80 g/m2/20 lb)	50 sheets
OHP	20 sheets
Adhesive paper	1 sheet

Toner Replenishment:	Toner Addition (K, Y, C, M) (220 g/cartridge)
Copy Tray Capacity:	100 sheets (11" x 17"/A3 and smaller)
Power Source:	US: 120V/12A/60Hz,
	Europe/Asia: 220-240V/8A/50,60 Hz
	Taiwan: 110 V/12A/60Hz
Maximum Power	1.5 kVA
Consumption:

1-4

24 February, 1999 SPECIFICATIONS

Dimensions (without Platen Cover):

		Width		Depth	Height
	A258	620 mm		680 mm	602 mm
		24.4"		26.8"	23.7"
	A259	620 mm		757 mm	602 mm
		24.4"		29.8"	23.7"
	A260	620 mm		757 mm	602 mm
		24.4"		29.8"	23.7"
Height: 1,018 mm with optional paper tray unit
Weight:		Manual Duplex: 105 kg (231.3 lbs.)
		Auto Duplex: 108 kg (237.9 lbs.)
Optional Equipment:		Automatic Document Feeder (ARDF): A663
		Sorter Stapler: A555 (10 bins), A834 (20 bins),
		Sorter: A849 (3 bins)

Film Projector: A846

Holder for Film Projector Unit: A702-19

Paper Tray Unit: A832 (2 trays), A833 (3 trays)

Key Counter

Platen Cover: A749-00

Original Tray: A430-07 (Type F)

Overall Information

1-5

SPECIFICATIONS 24 February, 1999

1.1.3 PLATEN/ARDF ORIGINAL SIZE DETECTION

Size (width x length)			Platen				ARDF
	[mm]		Inches		Metric	Inches		Metric
A3	(297 x 420)	L	No		Yes	No		Yes
B4	(257 x 364)	L	No		Yes	No		Yes
A4	(210 x 297)	L	No		Yes	Yes		Yes
A4	(297 x 210)	S	No		Yes	Yes		Yes
B5	(182 x 257)	L	No		Yes	No		Yes
B5	(257 x 182)	S	No		Yes	No		Yes
A5	(148 x 210)	L	No		No*	No		Yes
A5	(210 x 148)	S	No		No	No		Yes
B6	(128 x 182)	L	No		No	No		Yes
B6	(182 x 128)	S	No		No	No		Yes
11" x 17" (DLT)			Yes		No	Yes		Yes
11" x 15"			No		No	Yes		No
10" x 14"			No		No	Yes		Yes
8.5" x 14" (LG)			Yes		No	Yes		No
8.5" x 13" (F4)			No		No	Yes		Yes
8.25" x 13"			No		No	No		No
8" x 13"(F)			No		Yes	Yes		No
8.5" x 11" (LT)			Yes		No	Yes		Yes
11" x 8.5" (LT)			Yes		No	Yes		Yes
8" x 10.5"			No		No	No		No
8" x 10"			No		No	Yes		No
5.5" x 8.5" (HLT)			No*		No	Yes		No
8.5" x 5.5" (HLT)			No		No	Yes		No
A6	(105 x 148) L		No		No	No		No

*: For A5 lengthwise/HLT, SP4-303 can be used to select “Cannot detect original size” or “A5 lengthwise/5.5" x 8.5"(HLT)”.

1-6

24 February, 1999 SPECIFICATIONS

1.1.4 COPY PAPER SIZE

					Trays in the main body					Bypass	Optional
											S.Stapler
	Size
				Paper Tray (A258)			Duplex Tray			All
(width x length)
							(A259/A260)
	[mm]									versions
				Inches		Metric	Inches		Metric	(A258/
										259/260)
A3	(297 x	420)	L	No		Yes	Yes		Yes	Yes	Yes
B4	(257 x	364)	L	No		Yes	Yes		Yes	Yes	Yes
A4	(210 x	297)	L	Yes		Yes	Yes		Yes	Yes	Yes
A4	(297 x	210)	S	Yes		Yes	Yes		Yes	Yes	Yes
B5	(182 x	257)	L	No		Yes	No		Yes	Yes	Yes
B5	(257 x	182)	S	No		Yes	No		Yes	Yes	Yes
A5	(148 x	210)	L	No		Yes	No		No	Yes	Yes (1)
A5	(210 x	148)	S	No		No	Yes		Yes	Yes	Yes (2)
B6	(128 x	182)	L	No		No	No		No	Yes	Yes (1)
B6	(182 x	128) S		No		No	No		No	No	No
12” x 18”				No		No	No		No	Yes	Yes (3)
11" x 17" (DLT)				Yes		Yes	Yes		Yes	Yes	Yes
11" x 15"				Yes		No	Yes		No	Yes	Yes
10" x 14"				Yes		No	Yes		No	Yes	Yes
8.5" x 14" (LG)				Yes		No	Yes		No	Yes	Yes
8.5" x 13" (F4)				Yes		Yes	Yes		Yes	Yes	Yes
8.25" x 13"				No		No	Yes		Yes	Yes	Yes
8" x 13"(F)				No		No	Yes		Yes	Yes	Yes
8.5" x 11" (LT)				Yes		Yes	Yes		Yes	Yes	Yes
11" x 8.5" (LT)				Yes		Yes	Yes		Yes	Yes	Yes
8" x 10.5"				No		No	Yes		No	Yes	Yes
8" x 10"				Yes		No	Yes		Yes	Yes	Yes
5.5" x 8.5" (HLT)				No		No	No		No	Yes	Yes (1)
8.5" x 5.5" (HLT)				Yes		No	Yes		Yes	Yes	Yes (2)
A6	(105 x	148)	L	No		No	No		No	Yes	Yes (2)

Yes (1): Stapling is not allowed.

Yes (2): Using the proof tray only. Sorter bins cannot be used.

Yes (3): 20-bin sorter (A834): Stapling is not allowed.

10-bin sorter (A555): Not available

Overall Information

1-7

SPECIFICATIONS 24 February, 1999

1.1.5 APS PAPER SIZES AVAILABLE

— For metric machines —

			200	173	163		141		122			115		100			93		87		82		75		71		65		61			57			50
			~	~	~		~			~		~		~			~		~		~		~		~		~		~			~			~
			174	164	142		123		116			101		94			88		83		76		72		66		62		58			51
	A3		—	—	—	—		—		—		A3		—			B4		—		—		A4L				8.5		B5L			—			A5L
																											x13
	B4		—	—	—	—		—		A3		B4		—			—		A4L				8.5		B5L		—		—			A5L			—
																							x13
	A4L		—	—	—	A3		B4		—		A4L					8.5		B5L		—		—		A5L		—	—		—			—
																	x13
	B5L		—	—	A3		B4		—	A4L			B5L		—		—		A5L		—		—		—		—		—		—
	A5L		A3	B4	—		A4L		B5L			—	A5L			—	—		—		—		—		—		—		—		—
	A4S		—	—	—	—		—		—				A4			—		B5		—		—		A5		—		—			—		—
														S					S						S
	B5S		—	—	—	—		—				A4		B5			—		—		A5		—		—		—	—		—			—
												S		S							S
	A5S		—	—	—		A4		B5			—		A5			—		—	—		—		—	—		—		—			—
							S			S				S
	8.5		—	—	—		—			—		—		8.5			—		—		—		—		—		—		—			—			—
	x 11													x11
	11		—	—	—		—			—		—		11			—		—		—		—		—		—		—			—			—
	x 8.5													x8.5
	8.5		—	—	—	—		A3		—				8.5			—		—	A4L		B5L			—	—		—	—			A5L
	x 13													x13
	11		—	—	—		—			—		—		11			—		—		—		—		—		—		—			—			—
	x 15													x15
		: Not allowed in platen cover mode. L: Lengthwise															S: Sideways

— For standard machines (in inches)—

	200	176	155		129			121	100			93	85		77		74		65		50
	~	~	~		~			~	~			~	~		~		~		~		~
	177	156	130		122			101	94			86	78		75		66		51
11x17	—	—	—		—	—		11x17 11x17				11x15			8.5		—		8.5		5.5
															x14				x11		x8.5
11x15	—	—	—		—			—	11x15		11x15		—		8.5		8.5		—		5.5
															x14		x11				x8.5
8.5x14	—	—	—		—			11	8.5			—	—		8.5		—		—		5.5
								x17	x14						x11						x8.5
8.5x11	—	—			11x17		—		8.5			—	—	—		—			5.5		—
									x11										x8.5
5.5	11	11	8.5		8.5			—	5.5			—	—	—		—	—			—
x8.5	x17	x15	x14		x11				x8.5
8.5	—	—	—		11			—	8.5			—	—	—		—	—			—
x5.5					x8.5				x5.5
11x8.5	—	—	—		—	—			11			—	—	—		—			8.5		—
									x8.5										x5.5
8x10	—	—	—		11x17		10x14		8x10			—	—		—		—		5.5		—
																			x8.5
10x14	—	—	—		—	—		10x14		—			8.5		8.5		—		—		5.5
													x14		x11						x14
8x13	—	—	—		11x17		—	8x13		—		—	—		—				5.5		—
																			x8.5

: Not allowed in platen cover mode.

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24 February, 1999

SPECIFICATIONS

NOTE: 1) The tables indicate the copy paper size for each original for 50 to 200 % zoom ratios.

2)After specifying a zoom ratio, APS automatically selects a paper size that guarantees the quality of the magnified copy image, if there is a paper size available for the equivalent standard reproduction ratio.

3)If there is no paper that corresponds to the detected size, the machine displays the message "Set xx paper in tray" and stops the job (copying is still possible).

4)For "—" in the above tables, the machine displays the message "Cannot detect original size" and stops the job (copying is still possible). The selected paper feed tray does not change.

5)When less than 49% or more than 201% is selected, APS behaves in accordance with note 4 above.

6)APS also supports the by-pass feed table (except for non-standard paper sizes). When the paper size selected by APS can only be fed from the by-pass feed table, the machine displays a warning to instruct the user to use the by-pass feed table.

7)APS does not support A6, B6, and A5.

1.1.6NOISE EMISSION

Sound pressure level

The measurements were made in accordance with ISO 7779 at the operator positions.

Copier only	Full system*
Less than 38.5 dB (A)	Less than 55 dB (A)

*: Full system: Copier with document feeder, 500 sheets x 3 trays unit, FPU, and a sorter stapler.

Sound power level

The measurements were made in accordance with ISO 7779.

	Copier only	Full system*
Stand-by	Less than 55 dB (A)	Less than 59 dB (A)
Copying
(This value is for the	Less than 68 dB (A)	Less than 72 dB (A)
black copy mode.)

*: Full system: Copier with document feeder, 500 sheets x 3 trays unit, FPU, and a sorter stapler.

Overall Information

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SPECIFICATIONS

24 February, 1999

1.1.7 POWER CONSUMPTION

(1)Maximum power consumption

1.5kVA

(2)Average power consumption

	A258/A259/A260 Copiers
Standby	0.4 kW
Warm-up	1.3 kW
Copying	1.1 kW (B/W A4 å)
	0.6 kW (full color A4 å)
Energy Saver Mode	Value for standby minus 25 W

1.1.8 DISPLAY EDITOR SPECIFICATIONS

Scanned image	∙ The copier's scanner scans the image.
	∙ Maximum A3/DLT (11" x 17"): Reduced image display
Displayed image	∙ 144 x 192 mm, 256 colors (8 bits/dot)
	∙ 640 x 480 dots, 0.33 mm/dot
	Reduces the dpi of scanned images to approximately 25
	dpi and displays the entire image
	∙ Zoom display: 4 levels (200%, 264%, 400%, 528%)
Area specification	∙ Move the arrow on the screen by using the cursor key
procedure	and enter a point by pressing the coordinate entry key.

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24 February, 1999

1.2 MECHANISM OVERVIEW

1.2.1 IMAGE GENERATION PROCESS

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10

9

8

7

MECHANISM OVERVIEW

Information

Overall

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3

4

5

A259V110.WMF

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MECHANISM OVERVIEW

24 February, 1999

(1) Drum charge

The charge corona applies a negative charge to the OPC drum and the grid ensures that this charge is even.

(2) Quenching

After cleaning, the OPC is fully exposed to light from an array of red LEDs, quenching the residual charge on the OPC drum in preparation for the next copy cycle.

(3) Drum Cleaning

The cleaning brush increases drum cleaning efficiency by applying lubricant to the OPC drum. The cleaning blade scrapes the residual toner off the OPC drum.

(4) PCC (Pre-cleaning corona)

The PCC discharges the photoconductor drum and applies AC and negative DC to reduce the charge holding the residual toner to the drum, thereby improving the efficacy of the cleaning brush.

(5) Belt transfer

Positive charge applied to the back of the transfer belt transfers the toner image on the OPC drum to the transfer belt.

(6) Paper transfer

The negatively charged toner image is transferred to the paper by giving a positive charge to the back of the paper while the paper and transfer belt are held in close contact.

(7) Paper separation corona

After transfer, the separation corona quenches the negative charge on the paper to reduce the attraction between the belt and paper. The curvature of the belt causes the paper to separate from the transfer belt.

(8) Belt cleaning unit and lubricant application brush

The brush applies lubricant, which makes it easier for the counter blade to scrape excess toner off the transfer belt.

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24 February, 1999

MECHANISM OVERVIEW

(9) ID sensor

The ID sensor detects the density of the sensor patches developed on the OPC drum. The signal from the ID sensor is used for process control and toner supply control.

(10) Development

The latent image on the drum attracts the negatively charged toner. Toner is preferentially attracted to those places on the drum surface where the laser reduced the negative charge. The development units for each color are included in the revolver unit.

Overall Information

(11) Potential sensor

The potential sensor detects the electrical potential (the strength of the electric field) on the photoconductor drum for process control.

(12) Laser exposure

The polygon mirror reflects the laser beam emitted from the laser diode and projects it onto the drum through the f-theta lens, drum mirror, and toner shield glass. The laser output varies in intensity to correspond to the image data, and this forms a latent image on the drum.

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