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FT7770
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Table of contents
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Ricoh FT7770 Service manual

RICOH FT7770

RICOH COMPANY, LTD.
SERVICE MANUAL

TABLE OF CONTENTS

SECTION 1:
MAIN SPECIFICATIONS GUIDE TO COMPONENTS
HOW TO USE THE GUIDANCE DISPLAY DISPLAY CONTROL KEYS THE COPY CYCLE COPY PROCESSES AROUND THE DRUM PAPER PATH MECHANICAL COMPONENT LAYOUT ELECTRICAL COMPONENT LAYOUT DRIVE LAYOUT ELECTRICAL COMPONENT DESCRIPTIONS OVERALL MACHINE CONTROL AC AND DC POWER DISTRIBUTION
1.
Copier Exterior
2.
Copier Interior
3.
Operation Panel
1-1
1-4 1-8 1-10
1-14 1-15 1-16 1-17 1-18 1-20
1-22
1-26 1-27 1-34 1-35
SECTION 2:
DRUM
CHARGE
ERASE
DETAILED SECTION DESCRIPTION
1.
Selenium Drum
2.
Drum Thermistor Unit
3.
Drum Heater Circuit
1.
Corona Unit
2.
Corona Unit Ventilation
3.
Wire Cleaner
4.
Charge Power Pack
1.
Introduction
2.
Side Erase and leading/Trailing Edge Erase
3.
Erase Lamp Circuit
2-1 2-2 2-3
2-4 2-5 2-6 2-7
2-8 2-9 2-10
EXPOSURE
1.
2.
3.
4.
5.
6.
Introduction Exposure Lamp Unit Automatic Image Density Sensing Lamp Regulator Optics Cooling Fan Anticondensation Heater
2-11 2-12 2-13 2-14 2-16 2-16
SCANNER DRIVE
LENS AND MIRROR POSITIONG
DEVELOPMENT UNIT
TRANSFER AND SEPARATION
1.
Introduction
2.
Scanner Motor Control
1.
Lens Positioning
2.
Second Scanner Shift
3.
Lens/Mirror Position Initialization
1.
Introduction
2.
Drive Mechanism
3.
Cross Mixing
4.
Knocking Solenoid
5.
Toner Density Control
6.
Image Density Control
7.
Bias for ID Sensing
8.
Bias Circuit
9.
Development Drive Motor
1.
PTC (Pre-TransferŽCorona) and PTL (Pre-Transfer Lamp)
2.
Image Transfer
3.
Paper Separation
4.
TC/SC Wire Cleaner
5.
Pick-off Pawls
6.
PTC Power Pack and PTL Stabilizer
7.
Transfer/Separation Power Pack
2-17 2-18
2-20 2-22 2-23
2-24 2-26 2-27 2-28 2-29 2-33 2-37 2-38 2-40
2-42 2-42 2-43 2-44 2-45 2-46 2-47
CLEANIG
1.
2.
3.
4.
5.
6.
7.
QUENCHING
1.
2.
3.
Introduction Drive Mechanism Cleaning Blade Pressure Mechanism Used Toner Removal Cleaning Solenoid Circuit
PCC Power Pack Cleaning Bias Power Pack
Introduction
Pre-Quenching corona Circuit Quenching Lamp Circuit
2-49 2-50 2-51 2-53 2-55 2-56 2-57
2-58 2-59 2-60
PAPER FEED
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Introduction Feed Unit Mechanism FER Operation Paper Tray Drive Mechanism Friction Roller Reverse Mechanism Paper Volume Detection
Guide Posts and Paper Size Detection
Tray Lock and Positioning
Paper Size Board 220/240-Volt Paper Size Sensor
Tray Motor Circuit
Paper Tray Heaters
Tray Set Detection
2-61 2-62 2-63 2-64 2-65 2-66 2-67
2-68 2-69 2-70 2-71 2-72 2-73
VERTICAL TRANSPORT AND REGISTRATION
PAPER TRANSPORT
FUSING
INVERTER
DUPLEX TRAY
Introduction
1. Drive Mechanism
2. Jam Check Timing
3.
Introduction
1. Vacuum Fan
2.
Introduction
1. Pressure Mechanism
2. Oil Supply
3.
4.
Oil End Sensor
5.
Drive Mechanism
6.
Fusing Lamp Circuit
Introduction
1. Operation
2.
3.
Inverter Rollers Inversion
4. Junction Gate
5.
Introduction
1. Drive Mechanism
2.
3.
Fork Gate
Paper Positioning
4.
Bottom Plate Mechanism
5.
6.
Duplex Paper Feed
7.
Duplex Motor Circuit
Circuit
2-74 2-76 2-78
2-79 2-80
2-81 2-82 2-83 2-84 2-85 2-86
2-88 2-89 2-91 2-92 2-93
2-94
2-96 2-96 2-97 2-98 2-99 2-100
TOP UNIT
1.
2.
Release Mechanism Drum Support
2-101 2-102
OTHER CIRCUITS
1.
Counters
2.
Photosensor
3.
Photointerrupters Solenoids
4.
5.
Magnetic Clutches
6.
Monitor Board
7.
Operation Panel AC Drive Board
8.
9.
Ozone Fan Corona Cleaner
10.
2-103 2-105 2-106 2-107 2-108 2-109 2-110 2-111 2-112 2-113
SECTION 3:
INSTALLATION REQUIREMENT
INSTALLATION
KEY COUNTER HOLDER INSTALLATION A3/11” x 17” COUNTER INSTALLATION MODIFYING MAIN TRANSFORMER VOLTAGE (220V to 240V) PREPARATION FOR TRANSPORTING THE COPIER
SECTION 4:
PM TABLE LUBRICATION PARTS SERVICE TABLES
INSTALLATION
1.
Environment
2.
Minimum Space Requirement
3.
Machine Level
4.
Power Source
1.
Unpacking
2.
Accessory Check
3.
Installation Procedure
SERVICE TABLES
1.
Test Points Variable Resistors
2.
3.
Dip Switches
3-1 3-2 3-3 3-3
3-4 3-5 3-6
3-15 3-16 3-17 3-18
4-1 4-8 4-11
4-11 4-12
4-12 SERVICE REMARKS SPECIAL TOOLS AND LUBRICANTS
SECTION 5:
EXTERIOR COMPOMENT REMOVAL
REPLACEMENT AND ADJUSTMENT
1.
Exposure Glass and Operation Panel Removal Top Plate Removal
2.
4-13
4-18
5-1
5-2
DRUM AND CHARGE
1.
Drum Replacement
2.
Drum Thermoswitch and Heater Replacement
3.
Charge Corona Wire and
Cleaner Pad Replacement
5-3 5-4
5-5
EXPOSURE
DEVELOPMENT
TRANSFER AND PICK-OFF
CLEANING
1.
Scanner Drive Wire Replacement
2.
Lens Drive Wire Replacement
3.
Exposure Lamp Unit Removal
1.
Development Unit Removal Developer Replacement
2.
3.
Development Roller and Paddle Roller Removal
4.
Adjustment of Development Roller Gaps
Image Density Sensor Cleaning and Removal
5.
6.
Image Density Sensor Adjustment
1.
Transport Unit Removal
2.
Transfer Ozone Filter Replacement
3.
Pre-transfer Corona Wire Replacement
4.
Transfer/Separation Corona Wire
and Cleaner Pad Replacement
5.
Transport Belt Replacement
6.
Registration Sensor Replacement
7.
Pick-off Pawl Unit Removal
Cleaning Blade and Brush Replacement
1.
2.
Pre-cleaning Corona Wire Replacement
Toner Collection Coil Replacement
3.
4.
Cleaning Blade pressure Adjustment
5.
Blade Cleaner and Bias Roller Blade Replacement
6.
Pre-quenching Corona Wire Replacement
5-6 5-16 5-20
5-21 5-22
5-23 5-25 5-27 5-28
5-29 5-30 5-31
5-32 5-33 5-34 5-35
5-36 5-37 5-38 5-39 5-40 5-41
FUSING
1.
Fusing Unit Removal
2.
Hot Roller Stripper Replacement
3.
Cleaning Blade, Metering Blade, and Oil Supply Pad Replacement
4.
Hot Roller Replacement
5.
Pressure Roller Replacement
6.
Thermistor and Thermofuse Replacement
7.
Fusing Pressure Adjustment Hot Roller Temperature Adjustment
8.
5-42 5-43
5-44 5-46 5-48 5-49 5-50 5-52
INVERTER
1.
2.
3.
Inverter Roller Clutch Disassembly and Adjustment Return Pinch Roller Solenoid Adjustment Inverter Gate Solenoid Adjustment
5-53 5-55 5-56
PAPER FEED
DUPLEX TRAY
COPY IMAGE
CORONA CURRENT ADJUSTMENT
1.
Paper Feed Unit Removal
2.
Pick-up Roller Replacement
3.
Feed Roller Replacement
4.
Friction Roller Replacement
5.
Paper Tray Unit and Cover Removal
6.
Paper Tray Drive Wire Replacement Vertical Transport Unit Removal
7.
1.
Duplex Tray Removal
2.
Paper Feed Roller Replacement and Adjustment Pick-up Roller Replacement
3.
4.
Friction Roller Replacement
5.
Bottom Plate Pressure Clutch Disassembly
6.
Duplex Paper Sensor Adjustment
7.
Duplex Side Plate Drive Wire Replacement
1.
Horizontal Magnification Adjustment
2.
Side-to-Side Registration Adjustment
3.
Uneven Exposure Adjustment
4.
Light Intensity Adjustment
5.
Auto Density Sensor Adjustment
1.
Corona Current Adjustment Preparation
2.
Charge Corona
3.
Pre-transfer Corona
4.
Transfer Corona
5.
Separation Corona
6.
Pre-cleaning Corona
7.
Pre-quenching Corona
5-57 5-58 5-59 5-60 5-61 5-62 5-65
5-66 5-67 5-68 5-69 5-70 5-71 5-72
5-73 5-74 5-75 5-76 5-77
5-78 5-80 5-81 5-82 5-83 5-84 5-85
SERVICE PROGRAM MODE
1.
Factory Settings
2.
How to access SP41 to SP53
3.
Service Program Functions
5-86 5-87 5-88
SECTION 6:
ELECTRICAL DATA
MAIN BAORD SCHEMATIC 1 MAIN BAORD SCHEMATIC 2 MAIN BAORD SCHEMATIC 3 DC DRIVE BOARD SCHEMATIC SCANNER MOTOR CONTROL BOARD SCHEMATIC MAIN MOTOR CONTROL BOARD SCHEMATIC LENS/MIRROR MOTOR CONTROL BOARD SCHEMATIC POWER SUPPLY UNIT BLOCK DIAGRAM AC DRIVE BOARD SCHEMATIC OPERATION PANEL-CPU BOARD SCHEMATIC
SECTION 7:
SPECIFICATIONS MECHANICAL COMPONENT LAYOUT ELECTRICAL COMPONENT LAYOUT ELECTRICAL COMPONENT DESCRIPTIONS
DOCUMENT FEEDER
6-1 6-2 6-3 6-4 6-5 6-6 6-6 6-7 6-9 6-10
7-1 7-2 7-3 7-4
BASIC OPERATION
1.
Single-Sided Original Feed
2.
Two-Sided Original Feed
3.
Computer From Feed
FEED-IN UNIT
1.
Original Feed-in
2.
Drive Mechanism
3.
Pressure Mylar Release
4.
Separation of Originals
5.
Relay Roller Pressure Release
TRANSPORT AND INVERSION UNIT
1.
Original Transport
2.
Transport Belt Drive Mechanism
3.
Original Inversion and Feed-out
4.
Inversion and Feed-out Drive Mechanism
5.
Lift Mechanism
COMPUTER FORM FEED
7-5 7-7 7-9
7-10 7-12 7-14 7-15 7-16
7-17 7-18 7-19 7-20 7-22
7-23
ELECTRICAL OPERATION
Interface With Copier
1.
2.
Feed-in Sensor
3.
Motor Control
4.
Original Size Sensing
5.
DF Misfeed Check
6.
Application Switch
7.
Form Size Switch
8.
CFF Feed Hole and Set Sensors
7-24 7-25 7-26 7-27 7-29 7-30 7-31 7-32
SERVICE
REPLACEMENT AND ADJUSTMENT
TIMING CHART 1
TABLES
1.
Test Point Table
2.
Variable Resistor Table
3.
LED Table
4.
DIP Switch Table
5.
Blown Fuse Table
6.
Switch Failure Table
7.
Sensor Failure Table
1.
Separation Roller Replacement
2.
Friction Tab Replacement
3.
Pick-up Roller Replacement
4.
Transport Unit Cover Removal
5.
Feed Belt Removal
6.
Inverter Entrance and Inverter Sensor Replacement
7.
Turn Roller Replacement
8.
Exit Roller/Pull-out Roller Replacement
9.
Inverter Roller Replacement
10.
DF Removal
11.
Original Skew Adjustment
12.
Original Leading Edge Adjustment
13.
Registration Sensor Threshold Level Adjustment
14.
Feed-in, Belt, and Inverter Motor Speed Adjustment
7-33 7-33 7-34 7-35 7-36 7-36 7-37
7-38 7-39 7-40 7-43 7-44
Registration
7-45 7-46 7-47 7-48 7-50 7-51 7-52
7-53 7-54
7-55 TIMING CHART 2 DF MAIN BAORD SCHEMATIC
SECTION 8:
SPECIFICATIONS
MECHANICAL COMPONENT LAYOUT
ELECTRICAL COMPONENT LAYOUT
ELECTRICAL COMPONENT DESCRIPTIONS
LARGE CAPACITY TRAY
7-56
7-57
8-1
8-2
8-3
8-4
MECHANICAL OPERATION
1.
Basic Operation
2.
Feed Unit Mechanism
3.
Tray Drive Mechanism
4.
Friction Roller Reverse Mechanism
5.
Paper Volume Detection
6.
Guide Plate and Paper Size Detection
7.
Tray Lock and Positioning
ELECTRICAL OPERATION
1.
Tray Motor Circuit
2.
Paper Tray Heater
3.
Tray Set Detection
8-5 8-6 8-7 8-8 8-8 8-9 8-10
8-11 8-12 8-12
INSTALLATION
1.
Accessory Check
2.
Installation Procedure
REPLACEMENT AND ADJUSTMENT
1.
Paper Feed Unit Removal
2.
Pick-up Roller Replacement
3.
Feed Roller Replacement
4.
Friction Roller Replacement
5.
Paper Tray Unit Removal
6.
Paper Tray Drive Wire Replacement
SECTION 9: SORTER
SPECIFICATIONS MECHANICAL COMPONENT LAYOUT ELECTRICAL COMPONENT LAYOUT SORTER DRIVE ELECTRICAL COMPONENT DESCRIPTIONS MECHANICAL OPERATION
1.
Basic Operation
2.
Transport Belt Mechanism
3.
Turn Gate
4.
Misfeed Clearance Release Mechanism
5.
Manual Feed
6.
Bin Gate Operation
8-13 8-14
8-18 8-19 8-20 8-21 8-22 8-23
9-1 9-2 9-3 9-4 9-6
9-8
9-10 9-11 9-12 9-13
9-14
ELECTRICAL OPERATION
1.
Interface with The Copier and AC Power
2.
Timing Exit, and Manual Feed Sensors
3.
Bin and Jam Sensors
4.
Bin and Turn Gate Solenoids
5.
Safety Switches
6.
Distribution Drive Clutch
9-15
9-16
9-17
9-18
9-19
9-20
INSTALLATION
Accessory Check
1.
2.
Installation Procedure
9-21 9-22
SERVICE TABLES
1.
Sorter Main Board
2.
Sorter Interface Board
REPLACEMENT AND ADJUSTMENT
1.
Distribution Unit Removal
2.
Transport Unit Removal
3.
Transport Belt Replacement Jam Sensor and Bin Copy Sensor Adjustment
4.
5.
50Hz/60Hz Modification
SORTER MAIN BOARD SCHEMATIC
SECTION 10:
SPECIFICATIONS COMPONENT LAYOUT MECHANICAL OPERATION ELECTRICAL OPERATION
INSTALLATION
SORTER CONNECTOR UNIT
1.
Circuit Main Board
2. DC Power Supply
3. Sensor Input Circuit
4.
5.
Bin Drive Circuit
Accessory Check
1. Installation Procedure
2.
9-25 9-26
9-27 9-29 9-30 9-33 9-34
9-35
10-1
10-2 10-2
10-3 10-3 10-4 10-5 10-6
10-7 10-8
REPLACEMENT AND ADJUSTMENT
1.
Tension Adjustment
2.
50Hz/60Hz Modification (Sorter Connector Unit)
SECTION 11:
SPECIFICATIONS COMPONENT LAYOUT
ELECTRICAL COMPONENT DESCRIPTIONS OVERALL MACHINE CONTROL
SORTER STAPLER
Mechanical Component Layout
1.
2.
Electrical Component Layout
3.
Drive Layout
10-15 10-16
11-1
11-2 11-3 11-5
11-7 11-11
BASIC OPERATION
11-12
MECHANICAL OPERATION
1.
Transport Section Turn Gate Section
2.
3.
Distribution Section
4.
Side Plate
5.
Staple Unit
6.
Misfeed Clearance
ELECTRICAL OPERATION
1.
Bin/Jam sensor Safety Switch
2.
3.
Service Call Conditions
INSTALLATION
SERVICE TABLES
REPLACEMENT AND ADJUSTMENT
Accessory Check
1.
Installation Procedure
2.
1.
Test Point Table Variable Resister
2.
LED Table
3.
4.
DIP Switch Table
Stapler Removal
1.
2.
Staple Positioning Adjustment
3.
Gripper Assembly Removal Gripper Rubber Replacement
4.
5.
Gripper Solenoid Adjustment
Jammed Staple Removal
6.
7.
Staple Unit Drive Belt and Side Plate Drive Belt Tension Adjustment The Other Drive Belts Tension Adjustment
8. Jam Sensor and Bin Copy Sensor Adjustment
9.
Release Mechanism
Table
11-13 11-14 11-15 11-16 11-18 11-23
11-24 11-25 11-27
11-29 11-30
11-34 11-34 11-34 11-34
11-35 11-37 11-38 11-39 11-40 11-41
11-42 11-43 11-44
TIMING CHART
SORTER STAPLER MAIN BOARD BLOCK DIAGRAM SORTER STAPLER MAIN BAORD SCHEMATIC
SECTION 12:
SPECIFICATIONS OVERALL MACHINE CONTROL DATA FORMAT
MENU READER
11-45 11-46 11-47
12-1 12-2 12-3
BASIC OPERATION
INSTALLATION
Job Sheet Reading
1.
2.
Menu Reader Indicator Lights
3.
Processing Errors
1.
Accessory Check
2.
Installation Procedure
12-4 12-6 12-7
12-8 12-9
REPLACEMENT AND ADJUSTMENT
Lower Transport Roller Replacement
MENU READER CONTROL BOARD SCHEMATIC
SECTION 13:
INTRODUCTION COPY QUALITY
White Spots Hat Image
Blank Area
Wrinkled Copy Unfused Copy Horizontal White Lines (Bands)
Jitter Hollowing Out
Fuzzy Copy Vertical Black Lines (Bands) Uneven Density Vertical Black Lines (Bands)
Black Spots Dirty Background
Black Image
Black Copy
Light Copy
PAPER JAM/MISFEED
Pick-off Jam
False Paper Jam Duplex Tray Jam
Paper Feed Jam
Registration Jam
Exit Jam
Transport Unit Jam
Fusing Jam
TROUBLESHOOTING
12-11 12-12
13-1
13-2
13-3
13-4 13-5 13-6 13-6 13-7 13-8 13-8 13-9 13-11 13-14 13-18 13-19 13-22 13-22 13-24
13-26 13-27 13-27 13-29 13-30 13-30 13-30 13-31
FUNCTIONAL PROBLEM
Not Ready
Abnormal Indications
Please Wait Condition
13-32 13-32 13-34
DF
Original Jam
No Display
Abnormal Indication
SORTER
Not Ready False Jam Jam in Sorter Others
SERVICE CALL CONDITIONS
SC - 1 SC - 2 Drum Thermistor SC - 3 Drum Heater SC - 4 SC - 5 SC - 6 Fusing Lamp SC - 7 Fusing Overheat SC - 8 SC - 9 Optics Encode SC - 10 SC - 11 Scanner Velocity SC - 12 Scanner Return SC - 13 SC - 14 SC - 15 SC - 21 Paper Feed Unit SC - 22 SC - 23 Upper Tray SC - 24 SC - 25 Option Tray Service Call -
Exposure
Drum Overheat Fusing Thermistor
Temperature Fuse Home Sensor
Total Counter High Voltage Leak Lens Drive Lock
Option Tray Paper Feed Unit Lower Tray
Sorter with Stapler
13-35 13-35 13-36
13-37 13-37 13-38 13-38
13-39 13-41 13-42 13-43 13-44 13-44 13-45 13-46 13-47 13-48 13-49 13-50 13-50 13-51 13-52 13-53 13-53 13-54 13-55 13-56 13-57
DEFECTIVE SENSOR TABLE
Table
13-60
SECTION 14: SORTER/STAPLER CONNECTOR UNIT
1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1
2. COMPONENT LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2
3. MECHANICAL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3
4. ELECTRICAL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-4
5. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-5
5.1 ACCESSORY CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-5
5.2 INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-6
5.2.1 First Sorter/Stapler Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-6
5.2.2 Second Sorter/Stapler Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-12
5.3 50Hz-60Hz MODIFlCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-16
6. REPLACEMENT AND ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . 14-17
6.1 TENSION ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-17
SECTION 15: FT7870 SERVICE MANUAL
l. SPECIFICATIONS (Compared with F21) . . . . . . . . . . . . . . . . . . . . . . 15-1
2. GUIDE TO COMPONENTS (Compared with F21) . . . . . . . . . . . . . . . 15-2
2.1 OPERATION PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-2
2.2 ELECTRlCAL/MECHANlCAL COMPONENT LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . 15-3
2.3 DRIVE LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-4
3. SECTIONAL DESCRIPTIONS (Compared with F21) . . . . . . . . . . . . . 15-5
3.1 PROCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-5
3.1.1 Drum Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-5
3.1.2 Rest Time Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-5
3.1.3 Toner End Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6
3.2 FUSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6
3.2.1 Fusing Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6
3.2.2 Counter Measure for Toner Build Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-7
4. INSTALLATION AND OPTION INTERCHANGEABILITY . . . . . . . . . . 15-8
4.1 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-8
4.2 OPTION INTERCHANGEABILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-8
5. SERVICE TABLE (Compared with F21) . . . . . . . . . . . . . . . . . . . . . . . 15-9
5.1 PM TABLE (Differences Between F21 and F22) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-9
5.2 VARIABLE RESISTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-9
5.3 SERVICE REMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-10
6. ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-11
6.1 IMAGE DENSITY SENSOR/AUTO DENSITY SENSOR ADJUSTMENT . . . . . . . . . . . 15-11
6.2 FUSING UNIT ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-11
6.3 HOW TO ACCESS THE SP MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-12
6.4 ADDITIONAL SP MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-12
6.5 SP MODE FACTORY SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-13
6.6 DRUM CURRENT ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-13
7. ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-15
7.1 TIMING CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-15
8. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-17
8.1 SERVICE CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-17
8.2 HOW TO RESET THE OPTICS AND FUSING SC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-17
SECTION 1
OVERALL MACHINE
INFORMATION

CONTENTS

MAIN SPECIFICATIONS GUIDE TO COMPONENTS
1.
Copier Exterior Copier Interior
2.
3.
Operation Panel
HOW TO USE THE GUIDANCE DISPLAY CONTROL KEYS THE COPY CYCLE COPY PROCESSES AROUND THE DRUM
PAPER PATH MECHANECAL COMPONENT LAYOUT ELECTRICAL COMPONENT LAYOUT
DRIVE LAYOUT ELECTRICAL COMPONENT DESCRIPTIONS
OVERALL MACHINE CONTROL AC AND DC POWER DISTRIBUTION
DISPLAY
1-1
1-4 1-8 1-10
1-14 1-15 1-16
1-17 1-18 1-20 1-22 1-26 1-27 1-34
1-35

MAIN SPECIFICATIONS

- Item - - Specifications -
30 April, ’89
Configuration: Copying Process: Original Feed: Automatic reversing
Original Size: Reproduction Ratios:
Reproduction Ratio Change:
Warm Up Time: Approximately 6 minutes Copy Paper:
Console Dry electrostatic transfer system
Computer/Continuous form feeder (CFF) Maximum A3, 11” x 17” 4 reductions, 3 enlargements, 1 option, zoom -
64% to 141% (1%/step)
- A4 Version ­4R: 93%, 82%, 71%, and 65% 3E: 115%, 122%, and 141%
- Letter Version ­4R: 93%, 77%, 74%, and 64% 3E: 121%, 129%, and 141%
One optional ratio can be programmed in addition to the above.
Maximum 6 seconds
Size:
- Maximum A3,
- Minimum A5,
document feeder (ARDF)
(Room Temp. 20°C, 68°F)
11” x 17”
5½” x 8½”
Copy Speed:
Weight:
- A4 version -
- LT version -
DLT: 11” x 17” LG: 8.5” x 14” LT: 8.5” x 11”
- Maximum 90 grams (24 lb)
- Minimum 60 grams (16 lb)
Ratio
1:1.41 1:1
1:0.65
Ratio 1:1.41 1:1
1:0.65
A3 41
41 65 41
DLT LG LT 41 56 56 41
41
1-1
A4 56
61
64 64 61
A5
56
72 67
61
30 April, ’89
First Copy Time: Copy Number Input: Operation Display: Guidance display LCD and indicator LCD Image Density Automatic Density Selection (ADS) + Manual
Selection: Selection (7 Steps) Special Features: 1. Size Magnification
Paper Stock:
3.9 seconds (A4 or 8.5” x 11” fed from upper tray) 1 to 999 using number keys
2. Image Shift (Right and left) A4 version (Letter version): Adjustable from 0
to 21 mm (3/4”) at 1 mm (1/8”) increments
3. Automatic Duplex (3 modes)
4. Edit Image a. Erase Borders b. Erase Image c. Overlay Image
5. Automatic Paper Selection (APS)
6. Automatic Reduction/Enlargement (AMS)
7. Weekly Timer
Upper tray: 1000 sheets
Lower tray: 500 sheets Copy Tray Capacity: Copy Face Down: Toner Replenishment: Cartridge exchange Toner Consumption:
Automatic Reset: 1 minute (Can be set to 5 seconds, 3 minutes, or
Automatic Shut-off: 30 minutes, 1 hour, 3 hours, or “Infinite” can be
250 sheets (All sizes)
Automatic
20,000 copies/cartridge (ID 1.3)
17,000 copies/cartridge (ID 1.4)
(650 g/cartridge, A4 or 8.5” x 11”, 7% original)
no automatic reset.) All functions are cancelled except image density
selection. Copies Entered is set to “1”, the copy ratio is returned to full size, the upper tray is selected, and all special features are reset.
programmed.
1-2
30 April, ’89
Self-diagnostic
Codes: Service Programs:
Power Requirements:
Power Consumption: (kw/h)
Dimensions:
Weight:
Optional Equipment:
24 codes (See the field manual for details)
More than 50 programs can be controlled from the
operation panel for efficient maintenance service.
115 V, 60 Hz, 20 A 220 V, 50 Hz, 10 A 240 V, 50 Hz, 10 A
Warm-up Copying Standby Off
Copier Sorter -­LCT Sorter -­Connector
Sorter Stapler
*Fusing lamp off
Height: 1,020 mm, 40.2” Depth: 790 mm, 31.1” Width: 290 kg, 639 lb 20 bin sorter
Large capacity tray (2,200 sheets) Sorter stapler Sorter connector unit Menu Reader
Key Counter 11” x 17”/A3 counter
1.7
--
1,216 mm, 47.9”
1.75
0.12 -- --
0.13 -- --
0.20 -- --
0.20
0.2*
0.04
1-3
30 April, ’89

1. GUIDE TO COMPONENTS

1-1. EXTERIOR

1-4
Copier
No. Name
1.
Main Switch
2.
Control Panel
3.
Exposure Glass Left Door
4.
Right Door
5. Paper Trays
6.
Key Counter Port
7.
8.
Original Guide Plate
9.
Original Feed-in Unit
DF Indicator Panel
10. Belt Unit
11.
Reverse Section
12.
13.
Original Tray
14.
Computer Form Fence
30 April, ’89
Function
Turns the machine on or off. Operator controls and indicators for the main copier and
sorter are located here. Place originals here for copying. Provides access for supplying toner and removing
misfeeds. Provides access for removing misfeeds. The two trays hold up to 1,500 sheets of paper — 1,000 in
the upper tray and 500 in the lower tray. Insert the key counter (option) here. Place originals here for automatic or semi-automatic
feeding. Separates originals and feeds them to the belt unit.
Document feeder indicators are located here. Automatically transports and positions original docu-
ments. (Place book originals directly on the exposure glass.)
Turns over the originals for automatic copying of the reverse side.
Originals are stacked here after copying.
Keeps a stack of computer forms straight so that they will feed smoothly.
Feed Stopper
15.
Edge Guides
16.
17.
Computer Form Guide
18.
Stacker
Menu Reader
27.
28.
Access Cover
Prevents originals from being inserted while copying
computer forms.
Keep computer forms straight as they are fed into the
document feeder. Sends computer forms to the stacker.
Receives computer forms after copying. Reads job sheets and sets operation modes automati-
cally.
Provides access for removing misfeeds.
1-5
30 April, ’89
1-6
Sorter – CS2065 (Option)
30 April, ’89
19. Sorter Bins
20. Proof Tray When not in sort or stack mode copies are delivered
21. Manual Feed Entrance Used to manually feed sheets to the sorter bins. (For
22. Front Door
Copies will be sorted or stacked here.
here.
job recovery, blank separators, etc.) Provides access for removing misfed paper from the
sorter.
Sorter/Stapler – ST20 (Option)
23.
Sorter Bins Proof Tray
24.
25.
Right and Left Doors
26.
Staple Indicators
Copies will be sorted, stacked, or stapled here. When not in sort, stack, or staple mode, copies are de-
livered here. Provide access for removing misfed paper from the
sorter/stapler. Lights while stapling.
1-7
30 April, ’89

1-2. COPIER INTERIOR

1-8
30 April, ’89
No.
11. Tray Auto-Shift Switch
13. Humidity Switch
14. Image Density Switch
Name
1. Top Unit
2. Fusing Unit
3. Original Application Switch
4. Form Size Switch
5. Oil Bottle
6. Duplex Tray
7. Internal Panel
8. Toner Cartridge
9. SC Reset Switch
10. Exposure Switch
12. Paper Application Switch
15. Misfeed Monitor
Function
The top swings up for misfeed removal. Pull out to remove misfed paper from the fusing area. When copying thin originals with the document feeder,
set this switch to the right position.
When using the computer form feeder, select the com­puter form size with this switch.
Add silicone oil to this bottle when the Add Oil indicator lights.
Holds copies while they are recycled for duplex copying.
The misfeed monitor and several control switches are
located here. Change the toner cartridge when the Add Toner indica-
tor lights.
Resets the copier from a service call condition.
To prevent blue lines from being copied, increase expo­sure intensity with this switch.
Used to select or deselect limitless paper feed.
When copying on tracing paper or when image density is
low, set this switch to “Translucent paper”.
Controls a heater which keeps paper dry. Ask your service engineer how to use this switch. Shows the location(s) of misfed paper.
1-9
30 April, ’89

1-3. OPERATION PANEL Keys

* Letter/Legal Version
1.
Set Timer Key
Press to preset the power on/off time for each day of the week.
Edit Image Key
2.
Press to select one of the three edit modes.
3.
Image Shift Key
Press to change the size of the margin on copies.
4.
Duplex Key
Press to select one of the three duplex modes.
5.
Special R/E Key
Press to select one of the three special reduce or enlarge modes.
6.
Guidance Key
Press to start guidance in the display.
ADF/SADF Select Keys
7.
Press to select automatic or semi-
automatic document feed.
Auto Image Density Key
8.
Press to resume automatic control of image density.
9.
Sorter Keys
Press to select sort and stack modes or to deselect the sorter.
Copy Face Down Key
10.
When this key is pressed, copies will be delivered to the copy tray face down.
11.
Staple Key
Press to staple sorted copies.
12.
Clear Modes Key
Press to cancel all previously entered
settings and modes.
13.
Interrupt Key
Press to make interrupt copies during a multicopy run; then, press again and press the Start key to resume the mul­ticopy run.
Timer Release Key
14.
Press to use the copier after the auto on/off timer has turned the machine
off.
15.
Start Key
Press to start operation.
16.
Manual Image Density Keys
Press to make copies lighter or darker. Use this key to cancel automatic con­trol and to manually select the image density level.
1-10
* A4/A3 Version
17.
Decimal Point Key
Press to enter the decimal point when entering the sizes of originals or copies while in size magnification mode.
18.
Clear/Stop Key
Press to cancel the copy number entered. While copying, press to stop
copy operation.
19.
Numeric Keys
Normally, the numeric keys are used
to enter the desired number of copies. They are also used to preset the power
on/off timer and to input the sizes of
the original and copy when in size
magnification mode.
Paper Selection Key
20.
Press to change the selected paper tray.
21. Full Size Key
Press to make copies the same size as
the original.
22. Reduce Key
Press to make reduced copies. Suc-
cessive key strokes change the ratio.
(cyclical indication)
30 April, ’89
Enlarge Key
23.
Press to make enlarged copies. Suc­cessive key strokes change the ratio.
Display Control Keys
24.
Press to make choices in the guidance
display. The following symbols will
guide your choices.
25.
Enter Key
Press to input information into the copier’s memory.
26.
User Program Key
Press to input or call user programs.
1-11
30 April, ’89
Indicators * Letter/Legal Version
Auto Paper Selection
Indicates that the copy paper matching the original size will be
automatically selected.
Original Recovery Counter (upper display)
If a misfeed occurs while in ADF mode, this indicator shows
how many originals must be reset before resuming copying.
Load Staples
Lights when the staple cartridge is empty.
Add Toner
Blinks when it is time to change the toner cartridge. When continuously lit, the copier cannot be used until a new toner cartridge has been inserted.
Load Paper
Lights when the tray in use runs out of paper.
Add Oil
Lights when the silicone oil level gets too low.
Copies Entered Counter (upper display)
Shows the number of copies entered.
Check Paper Path
Indicates that a misfeed has occurred within the copier.
Sorter Misfeed
Indicates that a misfeed has occurred within the sorter.
Take Out Copies
Turns on when the sorter bins are full.
Close Door
Lights if one of the doors is open. The machine will not oper-
ate until all doors are closed.
1-12
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