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Model J
(Machine Code: G060) SERVICE MANUAL
July 30th, 2001 Subject to change
!IMPORTANT SAFETY NOTICES
PREVENTION OF PHYSICAL INJURY 1. Before disassembling or assembling parts of the printer and peripherals, make sure that the printer power cord is unplugged. 2. The wall outlet should be near the printer and easily accessible. 3. If any adjustment or operation check has to be made with exterior covers off or open while the main switch is turned on, keep hands away from electrified or mechanically driven components. 4. The printer drives some of its components when it completes the warm-up period. Be careful to keep hands away from the mechanical and electrical components as the printer starts operation. 5. The inside and the metal parts of the fusing unit become extremely hot while the printer is operating. Be careful to avoid touching those components with your bare hands. HEALTH SAFETY CONDITIONS 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 printer and its peripherals must be serviced by a customer service representative who has completed the training course on those models. 2. The NVRAM module (option) installed on the controller 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. 3. The optional fax and memory expansion units contain lithium batteries, which can explode if replaced incorrectly. Replace only with the same or an equivalent type recommended by the manufacturer. Do not recharge or burn the batteries. Used batteries must be handled in accordance with local regulations.
SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL 1. Do not incinerate toner bottles or used toner. Toner dust may ignite suddenly when exposed to an open flame. 2. Dispose of used toner, the maintenance unit which includes developer or the organic photoconductor in accordance with local regulations. (These are non-toxic supplies.) 3. Dispose of replaced parts in accordance with local regulations. 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. 4. When keeping used lithium batteries in order to dispose of them later, do not put more than 100 batteries per sealed box. Storing larger numbers or not sealing them apart may lead to chemical reactions and heat build-up.
LASER SAFETY
The Center for Devices and Radiological Health (CDRH) prohibits the repair of laser-based optical units in the field. The optical housing unit can only be repaired in a factory or at a location with the requisite equipment. The laser subsystem is replaceable in the field by a qualified Customer Engineer. The laser chassis is not repairable in the field. Customer engineers are therefore directed to return all chassis and laser subsystems to the factory or service depot when replacement of the optical subsystem is required.
!WARNING
Use of controls, or adjustment, or performance of procedures other than those specified in this manual may result in hazardous radiation exposure.
!WARNING
WARNING: Turn off the main switch before attempting any of the procedures in the Laser Optics Housing Unit section. Laser beams can seriously damage your eyes. CAUTION MARKING:
Trademarks Microsoft®, Windows®, and MS-DOS® are registered trademarks of Microsoft Corporation in the United States and /or other countries. PostScript® is a registered trademark of Adobe Systems, Incorporated. PCL® is a registered trademark of Hewlett-Packard Company. Ethernet® is a registered trademark of Xerox Corporation. PowerPC® is a registered trademark of International Business Machines Corporation. Other product names used herein are for identification purposes only and may be trademarks of their respective companies. We disclaim any and all rights involved with those marks.
TABLE OF CONTENTS
1 INSTALLATION ........................................................................... 1-1
1.1 INSTALLATION REQUIREMENTS ...........................................................1-1 1.1.1 ENVIRONMENT ...............................................................................1-1 1.1.2 MACHINE LEVEL .............................................................................1-1 1.1.3 MACHINE SPACE REQUIREMENT.................................................1-2 1.1.4 POWER REQUIREMENTS ..............................................................1-2 1.2 OPTIONAL UNIT COMBINATIONS ..........................................................1-3 1.3 INSTALLATION FLOW CHART ................................................................1-4 1.4 MACHINE INSTALLATION .......................................................................1-5 1.5 OPTIONAL UNIT INSTALLATION.............................................................1-7 1.5.1 LIST OF OPTIONS ...........................................................................1-7 Note for Transporting the Machine .......................................................1-7 1.5.2 PUNCH UNIT INSTALLATION .........................................................1-8 Accessory Check ..................................................................................1-8 Installation Procedure ...........................................................................1-9
2 PREVENTIVE MAINTENANCE.................................................... 2-1
2.1 USER MAINTENANCE .............................................................................2-1 2.2 SERVICE MAINTENANCE........................................................................2-3
3 REPLACEMENT AND ADJUSTMENT......................................... 3-1
3.1 SPECIAL TOOLS ......................................................................................3-1 3.2 IMAGE ADJUSTMENT..............................................................................3-2 3.2.1 REGISTRATION...............................................................................3-2 Image Area ...........................................................................................3-2 Leading Edge........................................................................................3-2 Side to Side ..........................................................................................3-2 Adjustment Standard ............................................................................3-2 Paper Registration Standard.................................................................3-2 1st side .................................................................................................3-2 2nd side in duplex.................................................................................3-2 Adjustment Procedure ..........................................................................3-3 3.2.2 COLOR REGISTRATION .................................................................3-3 Line Position Adjustment ......................................................................3-3 Adjustment for Line Speed of Fusing Unit.............................................3-3 3.2.3 PRINTER GAMMA ...........................................................................3-4 Adjustment Overview ............................................................................3-4 Adjustment Procedure ..........................................................................3-4 3.3 EXTERIOR COVERS ................................................................................3-5 3.3.1 REAR COVER AND UPPER REAR COVER ...................................3-5 3.3.2 PAPER EXIT TRAY ..........................................................................3-5 3.3.3 UPPER RIGHT COVER ...................................................................3-5 3.3.4 FRONT COVER ...............................................................................3-6 3.3.5 LEFT COVER AND REAR LEFT COVER ........................................3-6 3.3.6 UPPER LEFT COVER AND OPERATION PANEL ..........................3-7
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3.4 LASER OPTICS ........................................................................................3-8 3.4.1 CAUTION DECAL LOCATIONS .......................................................3-8 3.4.2 LASER OPTICS HOUSING UNIT ....................................................3-9 Adjustments after Replacing the Laser Optics Housing Unit...............3-11 3.4.3 POLYGON MIRROR MOTOR ........................................................3-12 3.4.4 LASER SYNCHRONIZING DETECTOR BOARDS ........................3-12 3.5 PCU AND DEVELOPMENT UNIT ...........................................................3-13 3.6 PAPER FEED..........................................................................................3-14 3.6.1 PICK-UP, FEED, AND SEPARATION ROLLERS ..........................3-14 Tray 1 and Tray 2 ...............................................................................3-14 By-pass Tray.......................................................................................3-14 3.6.2 PAPER WIDTH DETECTION BOARD ...........................................3-15 3.6.3 VERTICAL TRANSPORT SENSOR ...............................................3-15 3.6.4 RIGHT DOOR UNIT .......................................................................3-16 3.6.5 REGISTRATION SENSOR AND RELAY SENSOR .......................3-17 3.6.6 PAPER FEED CLUTCHES.............................................................3-17 3.6.7 BY-PASS FEED CLUTCH ..............................................................3-18 3.6.8 TRAY LIFT MOTOR .......................................................................3-18 3.7 TRANSFER AND PAPER TRANSPORT UNIT .......................................3-19 3.7.1 TRANSFER UNIT ...........................................................................3-19 3.7.2 TRANSFER BELT CLEANING UNIT..............................................3-21 3.7.3 CLEANING BLADE AND CLEANING ROLLER .............................3-22 3.7.4 TRANSFER BELT ..........................................................................3-23 3.7.5 OTHERS.........................................................................................3-27 Front Plate ..........................................................................................3-27 Grounding Spring................................................................................3-27 Drive Gear and Left Drive Roller.........................................................3-27 3.8 FUSING ...................................................................................................3-28 3.8.1 FUSING UNIT.................................................................................3-28 3.8.2 OIL SUPPLY UNIT .........................................................................3-29 3.8.3 UPPER COVER .............................................................................3-29 3.8.4 FUSING BELT UNIT.......................................................................3-30 3.8.5 PRESSURE ROLLER.....................................................................3-33 3.8.6 PAPER EXIT ..................................................................................3-35 3.9 ELECTRICAL COMPONENTS................................................................3-36 3.9.1 MOVING THE CONTROLLER BOX OUT OF THE WAY ...............3-36 3.9.2 MOVING THE HIGH VOLTAGE SUPPLY UNIT C, B OUT OF THE WAY.................................................................3-36 3.9.3 CONTROLLER AND BCU ..............................................................3-37 3.9.4 NVRAM REPLACEMENT PROCEDURE .......................................3-38 NVRAM for BCU .................................................................................3-38 NVRAM for Controller .........................................................................3-38 NVRAMs for both BCU and Controller ................................................3-38 3.9.5 REMOVING THE HIGH VOLTAGE SUPPLY BOARD - C, B .........3-39 3.9.6 PSU ................................................................................................3-39 3.10 DRIVE UNIT ..........................................................................................3-40 3.10.1 REGISTRATION CLUTCH ...........................................................3-40 DEVELOPMENT CLUTCHES ............................................................3-41 3.10.3 DEVELOPMENT DRIVE MOTOR - CMY .....................................3-42
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3.10.4 DRUM DRIVE MOTOR - CMY AND DRUM DRIVE MOTOR - K...........................................................3-43 DEVELOPMENT DRIVE MOTOR - K .................................................3-44
4 TROUBLESHOOTING ................................................................. 4-1
4.1 PROCESS CONTROL ERROR CONDITIONS .........................................4-1 4.1.1 DEVELOPER INITIALIZATION RESULT .........................................4-1 4.1.2 PROCESS CONTROL SELF-CHECK RESULT ...............................4-3 4.1.3 LINE POSITION ADJUSTMENT RESULT .......................................4-4 4.2 SERVICE CALL CONDITIONS .................................................................4-7 4.2.1 SUMMARY .......................................................................................4-7 SC Classification...................................................................................4-7 4.3 SC TABLE .................................................................................................4-9 4.4 TROUBLESHOOTING GUIDE ................................................................4-33 4.4.1 IMAGE QUALITY............................................................................4-33 4.4.2 COLOR SHIFT ...............................................................................4-37 Adjustment Standard: Max. 200 µm...................................................4-39 Preparation .........................................................................................4-39 How to measure the gap between color lines .....................................4-44 4.4.3 COLOR SHIFT AFTER TRANSFER UNIT REPLACEMENT .........4-46 Check the color shift level ...................................................................4-46 Fusing/ Registration Roller Speed Adjustment ...................................4-46 SP mode (sub-scan registration) reset................................................4-46 Transfer belt aging ..............................................................................4-46 Fusing roller speed adjustment...........................................................4-47 Registration roller speed adjustment (for color mode) ........................4-47 Line position fine adjustment for sub-scan..........................................4-47 Registration roller speed adjustment (For B&W mode).......................4-48 4.5 ELECTRICAL COMPONENT DEFECTS ................................................4-49 4.5.1 SENSORS ......................................................................................4-49 4.6 BLOWN FUSE CONDITIONS .................................................................4-50 4.7 LEDS (BCU) ............................................................................................4-50
5 SERVICE TABLES....................................................................... 5-1
5.1 SERVICE PROGRAM MODE....................................................................5-1 5.1.1 ENABLING AND DISABLING SERVICE PROGRAM MODE ...........5-1 Entering the Service Mode....................................................................5-1 Accessing the Required Program .........................................................5-2 Inputting a Value or Setting for a Service Program ...............................5-2 Exiting Service Mode ............................................................................5-2 5.2 PRINTER CONTROLLER SERVICE MODE .............................................5-3 5.2.1 REMARKS........................................................................................5-3 Display on the Control Panel Screen ....................................................5-3 Others ...................................................................................................5-4 5.2.2 SERVICE MODE MENU ("1. SERVICE") .........................................5-5 5.2.3 BIT SWITCH PROGRAMMING ........................................................5-6 5.3 PRINTER ENGINE SERVICE MODE........................................................5-7 5.3.1 SERVICE MODE TABLE ("2. ENGINE") ..........................................5-7 SP1-XXX (Feed) ...................................................................................5-7
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SP2-XXX (Drum).................................................................................5-13 SP3-XXX (Process) ............................................................................5-23 SP5-XXX (Mode) ................................................................................5-30 SP6-XXX (Peripherals) .......................................................................5-38 SP7-XXX (Data Log)...........................................................................5-39 5.3.2 INPUT CHECK TABLE ...................................................................5-47 Table 1: Paper Height Sensor.............................................................5-49 Table 2: Paper Size Switch (Tray 2) ...................................................5-49 Table 3: Paper Size (By-pass Table) ..................................................5-49 5.3.3 OUTPUT CHECK TABLE ...............................................................5-50 5.3.4 TEST PATTERN (SP5-997) ...........................................................5-54 5.4 FIRMWARE UPDATE PROCEDURE......................................................5-55 5.4.1 TYPE OF FIRMWARE....................................................................5-55 5.4.2 ERROR RECOVERY......................................................................5-55 Engine Firmware/Controller NIB Firmware .........................................5-55 Controller System Firmware: ..............................................................5-55 5.4.3 CONTROLLER/ENGINE FIRMWARE UPGRADE .........................5-56 5.5 CONTROLLER SELF-DIAGNOSTICS ....................................................5-57 5.5.1 OVERVIEW ....................................................................................5-57 5.5.2 DETAILED SELF-DIAGNOSTICS ..................................................5-58 5.6 USER PROGRAM MODE .......................................................................5-59 5.7 DIP SWITCHES.......................................................................................5-60 Controller Board..................................................................................5-60
6 DETAILED SECTION DESCRIPTIONS ....................................... 6-1
6.1 OVERVIEW ...............................................................................................6-1 6.1.1 COMPONENT LAYOUT ...................................................................6-1 6.1.2 PAPER PATH...................................................................................6-2 6.1.3 DRIVE LAYOUT ...............................................................................6-3 6.1.4 BOARD STRUCTURE......................................................................6-4 Overview...............................................................................................6-4 Descriptions ..........................................................................................6-5 6.1.5 PRINTING PROCESS ......................................................................6-6 6.2 PROCESS CONTROL ..............................................................................6-8 6.2.1 OVERVIEW ......................................................................................6-8 6.2.2 POTENTIAL CONTROL ...................................................................6-8 Overview...............................................................................................6-8 Process Control Self Check ..................................................................6-9 6.2.3 PROCESS CONTROL SELF CHECK PROCEDURE ....................6-10 Step 1: VSG Adjustment......................................................................6-10 Step 2: ID Sensor Solid Pattern Generation .......................................6-11 Step 3: Sensor Pattern Detection .......................................................6-11 Step 4: Toner Amount Calculation ......................................................6-11 Step 5: VD, VB, VL Selection and VREF Adjustment............................6-11 Step 6: ID Sensor Highlight Pattern Generation .................................6-12 Step 7: Sensor Pattern Density Detection...........................................6-12 Step 8: VL (LD Power) Selection.........................................................6-13 6.2.4 TONER SUPPLY CONTROL .........................................................6-14 Overview.............................................................................................6-14
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Toner Supply Control Modes ..............................................................6-14 6.2.5 TONER NEAR END/TONER END DETECTION............................6-15 Introduction .........................................................................................6-15 Toner Near End Detection ..................................................................6-15 Toner End Detection ...........................................................................6-15 Toner End Recovery ...........................................................................6-15 6.2.6 DEVELOPER INITIALIZATION ......................................................6-16 6.3 LASER EXPOSURE................................................................................6-17 6.3.1 OVERVIEW ....................................................................................6-17 6.3.2 OPTICAL PATH..............................................................................6-18 6.3.3 LASER SYNCHRONIZING DETECTOR ........................................6-19 Overview.............................................................................................6-19 Main Scan Start Detection ..................................................................6-19 Clock Frequency Adjustment ..............................................................6-19 6.3.4 DUAL BEAM WRITING ..................................................................6-20 Dual Beam Mechanism.......................................................................6-20 Laser Beam Pitch Change Mechanism...............................................6-20 6.3.5 LD SAFETY SWITCH .....................................................................6-21 6.3.6 AUTOMATIC LINE POSITION ADJUSTMENTS ............................6-22 Overview.............................................................................................6-22 Sub Scan Line Position for YCM.........................................................6-23 Main Scan Line Position for KYCM .....................................................6-23 Magnification Adjustment....................................................................6-23 Main Scan Skew Adjustment ..............................................................6-24 6.4 PHOTOCONDUCTOR UNIT ...................................................................6-25 6.4.1 OVERVIEW ....................................................................................6-25 6.4.2 DRIVE.............................................................................................6-26 6.4.3 DRUM CHARGE AND QUENCHING .............................................6-27 6.4.4 DRUM CLEANING..........................................................................6-28 6.4.5 WASTE TONER COLLECTION .....................................................6-29 6.4.6 WASTE TONER BOTTLE FULL DETECTION ...............................6-30 6.4.7 PCU DETECTION (DEVELOPMENT UNIT DETECTION) .............6-31 6.5 DEVELOPMENT .....................................................................................6-32 6.5.1 OVERVIEW ....................................................................................6-32 6.5.2 DRIVE.............................................................................................6-33 6.5.3 DEVELOPER AGITATION .............................................................6-34 6.5.4 DEVELOPMENT BIAS ...................................................................6-35 6.5.5 DEVELOPMENT UNIT DETECTION..............................................6-35 6.5.6 TONER SUPPLY MECHANISM .....................................................6-36 Overview.............................................................................................6-36 Toner Agitation ...................................................................................6-36 Toner Transport ..................................................................................6-37 6.5.7 TONER CARTRIDGE DETECTION ...............................................6-38 6.6 PAPER FEED..........................................................................................6-39 6.6.1 OVERVIEW ....................................................................................6-39 6.6.2 DRIVE TRAYS 1 AND 2 ..............................................................6-40 6.6.3 PAPER LIFT TRAYS 1 & 2..........................................................6-41 6.6.4 PAPER SIZE DETECTION TRAYS 1 & 2....................................6-42 6.6.5 PAPER HEIGHT DETECTION TRAYS 1 & 2 ..............................6-43
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6.6.6 PAPER END DETECTION TRAYS 1 & 2 ....................................6-43 6.6.7 REGISTRATION.............................................................................6-44 6.6.8 PAPER FEED LINE SPEED...........................................................6-45 6.6.9 BY-PASS TRAY..............................................................................6-46 6.7 IMAGE TRANSFER AND PAPER SEPARATION ...................................6-47 6.7.1 OVERVIEW ....................................................................................6-47 6.7.2 TRANSFER BELT DRIVE ..............................................................6-48 6.7.3 TRANSFER AND CLEANING CURRENT ......................................6-49 6.7.4 TRANSFER BELT CLEANING .......................................................6-50 6.7.5 TRANSFER BELT CONTACT ........................................................6-51 Mechanism .........................................................................................6-51 ACS (Auto Color Sensing) Mode ........................................................6-52 6.8 FUSING ...................................................................................................6-53 6.8.1 OVERVIEW ....................................................................................6-53 6.8.2 FUSING UNIT DRIVE.....................................................................6-54 6.8.3 FUSING TEMPERATURE CONTROL............................................6-55 Fusing Temperatures..........................................................................6-55 Temperature Corrections ....................................................................6-56 Overheat Protection ............................................................................6-56 6.8.4 OIL SUPPLY AND CLEANING.......................................................6-57 6.8.5 NEW FUSING OIL SUPPLY UNIT DETECTION............................6-58 6.8.6 NEW FUSING UNIT DETECTION..................................................6-59 6.8.7 ENERGY SAVER MODE................................................................6-60 Level 1 Energy Saver Mode................................................................6-60 Level 2 Energy Saver Mode................................................................6-60 6.9 PAPER EXIT ...........................................................................................6-61 6.9.1 OVERVIEW ....................................................................................6-61 6.9.2 PAPER OVERFLOW DETECTION ................................................6-62 6.10 CONTROLLER ......................................................................................6-63 6.10.1 OVERVIEW ..................................................................................6-63 6.10.2 BOARD LAYOUT..........................................................................6-65 6.10.3 PRINT DATA PROCESSING .......................................................6-66 RPCS Driver .......................................................................................6-66 PCL5c Driver ......................................................................................6-66 PS3 Driver ..........................................................................................6-67 CMS (Color Management System) .....................................................6-67 Gray Correction ..................................................................................6-67 BG/UCR (Black Generation/Under Color Removal)............................6-67 Gamma Correction .............................................................................6-67 Toner Limitation ..................................................................................6-68 Dither Processing and ROP/RIP.........................................................6-68 6.10.4 CONTROLLER FUNCTIONS .......................................................6-69 Sample Print .......................................................................................6-69 Locked Print........................................................................................6-69 Paper Source Selection ......................................................................6-70 Tray Priority (Auto Tray Select)...........................................................6-70 Tray Lock ............................................................................................6-70 Manual Tray Select .............................................................................6-70 Auto Continue .....................................................................................6-71
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Overview.............................................................................................6-71 Auto Tray Select .................................................................................6-71 Manual Tray Select .............................................................................6-71 Paper Output Tray ..............................................................................6-72 Output Tray Selected ..........................................................................6-72 Sequential Stacking ............................................................................6-72 Stapling...............................................................................................6-73 Punching.............................................................................................6-73 6.11 IEEE1394 INTERFACE .........................................................................6-74 6.11.1 SPECIFICATIONS........................................................................6-74 Hardware Specification .......................................................................6-74 System Requirements.........................................................................6-74 6.11.2 IEEE1394 .....................................................................................6-74 6.11.3 BLOCK DIAGRAM........................................................................6-75 6.11.4 PIN ASSIGNMENT .......................................................................6-75 6.11.5 REMARKS ABOUT THIS INTERFACE KIT..................................6-76 6.11.6 TROUBLESHOOTING NOTES ....................................................6-76
PERIPHERALS
DUPLEX UNIT (Machine Code: G571) 1 REPLACEMENT AND ADJUSTMENT...................................G571-1
1.1 DUPLEX INVERTER UNIT................................................................. G571-1 1.1.1 TOP COVER ............................................................................. G571-1 1.1.2 DUPLEX CONTROL BOARD .................................................... G571-1 1.1.3 DUPLEX INVERTER MOTOR 1 ................................................ G571-2 1.1.4 DUPLEX INVERTER MOTOR 2 AND SWITCH ........................ G571-2 1.1.5 EXIT SENSOR 3 AND DUPLEX INVERTER SENSOR............. G571-3 1.1.6 EXIT SENSOR 1 AND 2 ............................................................ G571-3 1.2 DUPLEX FEED UNIT ......................................................................... G571-4 1.2.1 DUPLEX DRIVE BOARD........................................................... G571-4 1.2.2 DUPLEX FEED MOTOR ........................................................... G571-4 1.2.3 DUPLEX FEED SENSOR.......................................................... G571-5
2 DETAILED DESCRIPTIONS ..................................................G571-6
2.1 OVERVIEW ........................................................................................ G571-6 2.2 DUPLEX OPERATION ....................................................................... G571-7 2.2.1 UP TO A4/LT(81/2" X 11") LEF .................................................. G571-7 2.2.2 LARGER THAN A4/LT(81/2" X 11") LEF.................................... G571-7 2.3 DUPLEX INVERTER UNIT................................................................. G571-8 2.3.1 DRIVE........................................................................................ G571-8 2.3.2 FEED TO EXTERNAL EXIT TRAY (NON-DUPLEX MODE) ..... G571-9 2.3.3 FEED TO DUPLEX FEED UNIT .............................................. G571-10 2.3.4 FEED TO TWO-TRAY FINISHER ........................................... G571-11 With Optional One-Tray Paper Feed Unit .................................... G571-11
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With Optional LCT or Two-Tray Paper Feed Unit ........................ G571-11 2.4 DUPLEX FEED UNIT ....................................................................... G571-12 2.4.1 DRIVE...................................................................................... G571-12 2.4.2 FEED-IN AND FEED-OUT ...................................................... G571-12
ONE-TRAY PAPER FEED UNIT (Machine Code: G567) 1 REPLACEMENT AND ADJUSTMENT...................................G567-1
1.1 COVER REPLACEMENT ................................................................... G567-1 1.2 ROLLER REPLACEMENT ................................................................. G567-2 1.2.1 PAPER FEED, SEPARATION, AND PICK-UP ROLLERS ........ G567-2 1.3 PAPER FEED MOTOR AND MAIN BOARD ...................................... G567-3 1.4 TRAY LIFT MOTOR ........................................................................... G567-4 1.5 PAPER FEED CLUTCH ..................................................................... G567-4 1.6 PAPER FEED UNIT REPLACEMENT................................................ G567-5
2 DETAILED DESCRIPTIONS ..................................................G567-6
2.1 OVERVIEW ........................................................................................ G567-6 2.1.1 MECHANICAL COMPONENT LAYOUT.................................... G567-6 2.1.2 ELECTRICAL COMPONENT LAYOUT ..................................... G567-7 2.1.3 DRIVE LAYOUT ........................................................................ G567-8
TWO-TRAY PAPER FEED UNIT (Machine Code: G568) 1 REPLACEMENT AND ADJUSTMENT...................................G568-1
1.1 COVER REPLACEMENT ................................................................... G568-1 1.2 ROLLER REPLACEMENT ................................................................. G568-2 1.2.1 PAPER FEED, SEPARATION, AND PICK-UP ROLLERS ........ G568-2 1.3 PAPER FEED MOTOR AND MAIN BOARD ...................................... G568-3 1.4 TRAY LIFT MOTORS......................................................................... G568-4 1.5 PAPER FEED CLUTCHES ................................................................ G568-4 1.6 PAPER FEED UNIT REPLACEMENT................................................ G568-5
2 DETAILED DESCRIPTIONS ..................................................G568-6
2.1 OVERVIEW ........................................................................................ G568-6 2.1.1 MECHANICAL COMPONENT LAYOUT.................................... G568-6 2.1.2 ELECTRICAL COMPONENT LAYOUT ..................................... G568-7 2.1.3 DRIVE LAYOUT ........................................................................ G568-8
LARGE CAPACITY TRAY (Machine Code: G569) 1 REPLACEMENT AND ADJUSTMENT...................................G569-1
71.1 DETACHING THE TRAY FROM THE MAINFRAME........................ G569-1 1.2 REAR FENCE HP SENSOR .............................................................. G569-1
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1.3 1.4 1.5 1.6 1.7 1.8 1.9
CHANGING THE TRAY PAPER SIZE ............................................... G569-2 LEFT TRAY PAPER END SENSOR .................................................. G569-3 TRAY LIFT MOTOR ........................................................................... G569-4 TRAY MOTOR AND STACK TRANSPORT CLUTCH........................ G569-5 PAPER FEED CLUTCH ..................................................................... G569-6 PAPER FEED UNIT ........................................................................... G569-7 UPPER LIMIT, RIGHT TRAY PAPER END, AND RELAY SENSORS..................................................................... G569-8 1.10 PICK-UP/PAPER FEED/SEPARATION ROLLER ............................ G569-9
2 DETAILED SECTION DESCRIPTIONS ...............................G569-10
2.1 OVERVIEW ...................................................................................... G569-10 2.1.1 MECHANICAL COMPONENT LAYOUT.................................. G569-10 2.1.2 ELECTRICAL COMPONENT LAYOUT ................................... G569-11 2.2 PAPER FEED................................................................................... G569-12 2.3 SEPARATION ROLLER AND PICK-UP ROLLER RELEASE .......... G569-13 2.4 TRAY LIFT ....................................................................................... G569-14 2.5 NEAR END/END DETECTION......................................................... G569-15 2.6 PAPER STACK TRANSPORT MECHANISM................................... G569-16 2.7 RIGHT TRAY PAPER END DETECTION ........................................ G569-17
TWO-TRAY FINISHER (Machine Code: G565) 1 REPLACEMENT AND ADJUSTMENT...................................G565-1
1.1 COVERS ............................................................................................ G565-1 1.1.1 EXTERNAL COVERS................................................................ G565-1 1.1.2 INNER COVER.......................................................................... G565-1 1.2 POSITIONING ROLLER..................................................................... G565-2 1.3 TRAY 1 EXIT SENSOR...................................................................... G565-2 1.4 ENTRANCE SENSOR/STAPLER TRAY ENTRANCE SENSOR ....... G565-3 1.5 STAPLER TRAY................................................................................. G565-3 1.6 UPPER STACK HEIGHT SENSORS/ TRAY 1 UPPER LIMIT SWITCH ........................................................ G565-4 1.7 EXIT GUIDE PLATE MOTOR............................................................. G565-5 1.8 LIFT MOTORS ................................................................................... G565-5 1.9 LOWER EXIT SENSOR ..................................................................... G565-7 1.10 LOWER STACK HEIGHT SENSORS .............................................. G565-8 1.11 TRAY 2 SHUNT POSITION SENSOR ............................................. G565-8 1.12 STAPLER UNIT................................................................................ G565-9 1.13 STAPLER ROTATION HP SENSOR................................................ G565-9 1.14 TRAY 1 INTERIOR......................................................................... G565-10 1.14.1 TRAY 1 COVERS .................................................................. G565-10 tray Shift Sensors and tray release sensor .................................. G565-11 1.14.3 TRAY 1 SHIFT MOTOR ........................................................ G565-11 1.14.4 BACK FENCE LOCK CLUTCH ............................................. G565-11 1.15 FINISHER MAIN BOARD ............................................................... G565-12 1.16 PUNCH HOLE POSITION ADJUSTMENT ..................................... G565-12
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2 TROUBLESHOOTING .........................................................G565-13
2.1 JAM DETECTION............................................................................. G565-13
3 SERVICE TABLES...............................................................G565-14
3.1 DIP SWITCH SETTINGS ................................................................. G565-14 3.2 TEST POINTS .................................................................................. G565-14 3.3 FUSES ............................................................................................. G565-14
4 DETAILED DESCRIPTIONS ................................................G565-15
GENERAL LAYOUT ......................................................................... G565-15 DRIVE LAYOUT ............................................................................... G565-16 JUNCTION GATES .......................................................................... G565-17 TRAY SHIFTING .............................................................................. G565-18 4.4.1 TRAY SHIFT MECHANISMS .................................................. G565-18 Tray 1 (Upper Tray) ..................................................................... G565-18 Tray 2 (Lower Tray) ..................................................................... G565-19 4.5 TRAY UP/DOWN MECHANISMS .................................................... G565-20 4.5.1 TRAY 1 .................................................................................... G565-20 Introduction .................................................................................. G565-20 Normal and sort/stack modes ...................................................... G565-20 Staple Mode................................................................................. G565-21 Tray 1 release mechanism........................................................... G565-22 4.5.2 TRAY 2 .................................................................................... G565-23 4.5.3 PRE-STACK MECHANISM ..................................................... G565-24 4.6 JOGGER UNIT PAPER POSITIONING MECHANISM..................... G565-25 Vertical Paper Alignment ............................................................. G565-25 Horizontal Paper Alignment ......................................................... G565-25 4.7 STAPLER MECHANISM .................................................................. G565-26 4.7.1 STAPLER MOVEMENT........................................................... G565-26 Stapler Rotation ........................................................................... G565-26 Side-to-Side Movement ............................................................... G565-26 4.7.2 STAPLER ................................................................................ G565-27 4.7.3 FEED OUT AND TRANSPORT ............................................... G565-28 4.8 PUNCH UNIT (OPTIONAL) .............................................................. G565-29 4.8.1 PUNCH DRIVE MECHANISM ................................................. G565-29 4.8.2 PUNCH WASTE COLLECTION .............................................. G565-30 4.1 4.2 4.3 4.4
FOUR-BIN MAILBOX (Machine Code: G566) 1 REPLACEMENT AND ADJUSTMENT...................................G566-1
1.1 EXTERIOR COVER REMOVAL ......................................................... G566-1 1.2 TRAY PAPER/OVERFLOW/VERTICAL TRANSPORT SENSORS ... G566-2 1.3 MAIN MOTOR REPLACEMENT ........................................................ G566-3
2 DETAILED DESCRIPTIONS ..................................................G566-4
2.1 COMPONENT LAYOUT..................................................................... G566-4 2.1.1 MECHANICAL COMPONENT LAYOUT.................................... G566-4
x
2.1.2 DRIVE LAYOUT ........................................................................ G566-4 2.2 ELECTRICAL COMPONENT DESCRIPTIONS ................................. G566-5 2.3 BASIC OPERATION........................................................................... G566-6 2.4 PAPER OVERFLOW DETECTION .................................................... G566-7
SPECIFICATIONS.....................................................................SPEC-1
1 GENERAL SPECIFICATIONS.............................................................. SPEC-1 1.1 SUPPORTED PAPER SIZES...................................................... SPEC-3 1.1.1 PAPER FEED........................................................................... SPEC-3 1.1.2 PAPER EXIT ............................................................................ SPEC-4 2 SOFTWARE ACCESSORIES .............................................................. SPEC-5 2.1 PRINTER DRIVERS .................................................................... SPEC-5 2.2 UTILITY SOFTWARE .................................................................. SPEC-5 3 MACHINE CONFIGURATION .............................................................. SPEC-6 4 OPTIONAL EQUIPMENT ..................................................................... SPEC-8 4.1 500-SHEET TRAY ....................................................................... SPEC-8 4.2 1000-SHEET TRAY ..................................................................... SPEC-8 4.3 2000-SHEET LARGE CAPACITY TRAY ..................................... SPEC-8 4.4 TWO-TRAY FINISHER & PUNCH UNIT ..................................... SPEC-9 4.5 FOUR-BIN MAILBOX ................................................................ SPEC-10
xi
30 July, 2001
INSTALLATION REQUIREMENTS
1.1 INSTALLATION REQUIREMENTS
1.1.1 ENVIRONMENT
1. Temperature Range: 2. Humidity Range: 3. Ambient Illumination: 4. Ventilation: 10°C to 32°C (50°F to 89.6°F) 15% to 80% RH Less than 2,000 lux (do not expose to direct sunlight) 3 times/hr/person or more
5. Avoid exposing the machine to sudden temperature changes, which include: 1) Direct cool air from an air conditioner 2) Direct heat from a heater 6. Avoid installing the machine in areas that might be exposed to corrosive gas. 7. Install the machine at a location lower than 2,500 m (8,200 ft.) above sea level. 8. Install the machine on a strong, level base. (Inclination on any side must be no more than 5 mm.) 9. Avoid installing the machine in areas that may be subjected to strong vibration.
1.1.2 MACHINE LEVEL
Front to back: Right to left: Within 5 mm (0.2") Within 5 mm (0.2")
1-1
Installation
1. INSTALLATION
INSTALLATION REQUIREMENTS
30 July, 2001
1.1.3 MACHINE SPACE REQUIREMENT
Place the machine near the power source, providing clearance as shown.
575mm (23")
B
678mm (27")
A
C
D
A: Over 460 mm (18") B: Over 100 mm (4") C: Over 550 mm (22") D: Over 700 mm (28")
1450mm (57")
G060I801.WMF
B
C A
678mm (27")
D
G060I802.WMF
1.1.4 POWER REQUIREMENTS
!CAUTION
1. Insert firmly the plug in the outlet. 2. Avoid using an outlet extension plug or cord. 3. Ground the machine. 1. Input voltage level: 120 V, 60 Hz: More than 10 A 220 V ~ 240 V, 50 Hz/60 Hz: More than 6 A 2. Permissible voltage fluctuation: ±10 % 3. Do not put or place anything on the power cord.
1-2
30 July, 2001
OPTIONAL UNIT COMBINATIONS
Item No. 1 2 3 4
Options PFU (1 Tray) PFU (2 Trays) LCT Two-tray finisher
Alternative Items 2, 3 Items 1, 3 Items 1, 2 Item 6
Required
5 6 7 8 9 10 11
3 types of punch kit Four-bin mailbox Duplex unit 3 types of memory DIMM HDD IEEE 1394 NVRAM
· Item 7 · Item 8 (Total 128 MB needed) or 9 · Item 1, 2 or 3 Item 4
Items 4, 5
Item 8
NOTE: Two memory DIMMs (up to 384 MB) can be installed.
1-3
Installation
1.2 OPTIONAL UNIT COMBINATIONS
INSTALLATION FLOW CHART
30 July, 2001
1.3 INSTALLATION FLOW CHART
The following flow chart shows how to install the optional units more efficiently.
Unpack the printer.
Will the paper feed unit or LCT be installed? Yes Place the printer on the paper feed unit or LCT. Install the paper feed unit or LCT. No
Install the controller options (if required).
Will the duplex unit be installed? Yes Install the duplex unit. No
Will the Two-tray finisher be installed? Yes Install the punch unit (if required). No Install the four-bin mailbox (if required).
Install the two-tray finisher.
Install the printer.
G060I002.WMF
Two-tray Finisher: Punch Unit: IEEE1394 Board:
Needs the duplex unit, HDD or at least 128 MB of memory, and a paper tray unit or LCT. Needs the finisher. Needs the memory DIMM.
1-4
30 July, 2001
MACHINE INSTALLATION
Refer to the Operating Instructions for details. If the customer has a service contract, change the settings of the following SP modes depending on the contract type.
Item Meter charge SP No. SP5-930-1 Function Specifies whether the meter charge mode is enabled or disabled. Meter charge mode enabled: · The Counter menu appears immediately after the Menu key is pressed. · The counter type selected by the counting method (SP5-045-1) can be displayed with the Counter menu. · The counter values can also be printed with the Counter menu. · The selected counter starts from a negative number. Meter charge mode disabled: · The Counter menu is not displayed. · The total counter starts from 0. Specifies whether the counting method used in meter charge mode is based on developments or prints. Important: This SP can only be done before the negative counters are reset with SP7825-001 Specifies whether the counter is doubled for A3/11" x 17" paper. Specifies whether the PM warning for PCUs and development units is displayed when the replacement time arrives. Type 1: Displayed Type 2: Not displayed Specifies whether the PM warning for the paper feed roller and transfer unit is displayed. Programs the service station fax number. The number is printed on the counter list when the meter charge mode is selected, so that the user can fax the counter data to the service station. Default Off
Counting method
SP5-045-1
Developments
A3/11" x 17" double counting PM warning display 1
SP5-104-1 SP5-930-3
No: Single counting Type 1
PM warning display 2 Fax No. setting
SP5-930-4 to SP5-930-5 SP5-812-2
Off:
1-5
Installation
1.4 MACHINE INSTALLATION
MACHINE INSTALLATION
Item Counter reset SP No. SP7-825-1 Function Resets the counters to 0. Important: This must be done at installation after all the above settings have been finished. The negative counters used in meter charge mode will be reset to zero.
30 July, 2001
Default
NOTE: 1) The default setting for this machine is meter-charge mode off. 2) The meter-charge counter cannot be reset.
1-6
30 July, 2001
OPTIONAL UNIT INSTALLATION
1.5.1 LIST OF OPTIONS
The available options are listed below. Except for the punch unit, installation is explained in the Operating Instructions. · Paper Feed Unit (500 sheets x 1) · Paper Feed Unit (500 sheets x 2) · Large Capacity Tray · Two-tray Finisher · Punch Unit · Four-bin Mailbox · DIMM Memory (64/128/256 MB) · IEEE1394 Board · HDD · NVRAM
Note for Transporting the Machine
If it is difficult to slide the machine across the floor after installing the optional paper feed unit or LCT, remove the two stands with the following procedure.
[A]
G571R112.WMF G568I901.WMF
[B]
1. Remove all trays in the optional paper feed unit or LCT. 2. Remove the front stand [A] (! x 2). 3. Remove the rear stand [B] (! x 2, 2 brackets). CAUTION: Reinstall the two stands in their original positions, or the machine might tip over when drawing out the paper trays and so on.
1-7
Installation
1.5 OPTIONAL UNIT INSTALLATION
OPTIONAL UNIT INSTALLATION
30 July, 2001
1.5.2 PUNCH UNIT INSTALLATION
Accessory Check
Check the quantity and condition of the accessories in the box against the following list: Description Q'ty
1. Punch unit ..................................................................................1 2. Sensor arm ................................................................................1 3. Hopper .......................................................................................1 4. Step screw .................................................................................1 5. Spring.........................................................................................1 6. Spacer (2 mm) ...........................................................................1 7. Spacer (1 mm) ...........................................................................1 8. Tapping screw............................................................................1 9. Tapping screw............................................................................2
1-8
30 July, 2001
OPTIONAL UNIT INSTALLATION
[A]
B377I102.WMF
[B]
[C]
B377I103.WMF
!CAUTION
Switch off the main machine and unplug its power cord. If the two-tray finisher is installed, disconnect it and pull it away from the machine. 1. Unpack the punch unit and remove all tapes and shipping retainers. 2. Open the front door and remove the rear cover [A] (! x 4). 3. Remove the bracket [B] (! x 2) and paper guide [C] (! x 1).
1-9
Installation
Installation Procedure
OPTIONAL UNIT INSTALLATION
30 July, 2001
[B]
[A] [C]
B377I101.WMF
[E]
B377I104.WMF
[D]
4. Remove the hopper cover [A] (! x 2). 5. Install the sensor bracket [B] (stepped ! x 1). 6. Install the spring [C]. 7. Install the 2 mm spacer [D]. 8. Install the punch unit [E] (! x 2, stepped ! x 1).
1-10
30 July, 2001
OPTIONAL UNIT INSTALLATION
[A]
B377I200.WMF
[C]
[B]
B377I106.WMF
9. Connect the harnesses [A] and clamp them as shown. 10. Slide in the hopper [B]. 11. Fasten the two 1 mm spacers [C] to the rear frame for future adjustment. NOTE: The spacers are used to adjust the horizontal positioning of the punch holes. 12. Reassemble the finisher and check the punch operation.
1-11
Installation
30 July, 2001
USER MAINTENANCE
2. PREVENTIVE MAINTENANCE
2.1 USER MAINTENANCE
The following maintenance kits are available for the customer to do PM. Type A Type B Type C Type D Type E Type F Type G Type H Color (C/M/Y) PCU Color (C/M/Y) Development Unit Fusing Unit Black Development Unit / Dust Filter Waste Toner Bottle Black PCU Oil Supply Unit Paper Feed Rollers 100KP 100KP 100KP 100KP 50KP 100KP 20KP 150KP
Preventive Maintenance
Chart: A4(LT)/5% Mode: 5 prints/job Environment: Normal temperature and humidity Yield may change depending on circumstances and print conditions. When the machine's default settings are used, an error message is displayed when a maintenance counter reaches the value in the PM table below, except for the items in maintenance kit H. NOTE: To have the machine display the message for maintenance kit H also, set SP5-930-4 to 1. After the user replaces the items in a maintenance kit, the machine automatically resets the counter for this maintenance kit, except for the items in kit H. NOTE: Except for the items in kit H, the machine can automatically detect when new items have been installed. The machine stops when the counters for parts in maintenance kits C, E and G reach the replacement value in the following table. NOTE: To have the machine display the alert only for maintenance kits C, E, and G, set SP5-930-3 to 0.
2-1
USER MAINTENANCE
30 July, 2001
Symbol key: Main Unit
C: Clean, R: Replace, L: Lubricate, I: Inspect
Item Black PCU Color (Y/M/C) PCU Black Development Unit Color (C/M/Y) Development Unit Fusing Unit Oil Supply Unit Waste Toner Bottle Dust Filter Pick-up Roller Feed Roller Separation Roller
20K
50K
100K R R R R R
150K
EM
R R R R R R
Remarks Included in maintenance kit F Included in maintenance kit A Included in maintenance kit D Included in maintenance kit B Included in maintenance kit C Included in maintenance kit G Included in maintenance kit E Included in maintenance kit D Included in maintenance kit H Included in maintenance kit H Included in maintenance kit H
Punch Kit
Item Chads 10K I EM Remarks Discard chads.
2-2
30 July, 2001
SERVICE MAINTENANCE
2.2 SERVICE MAINTENANCE
NOTE: After replacing the transfer unit, make sure to reset the maintenance counter using SP7-804-16 and 7-804-27. After replacing paper feed rollers, reset the maintenance counters for these also: By-pass tray (7-804-10), Tray 1 (7-804-11), Tray 2 (7-804-12), Tray 3/LCT (7-804-13), Tray 4 (7-804-14) Symbol key: Main unit
Item Transfer Unit By-pass Feed Roller By-pass Pick-up Roller By-pass Separation Roller 20K 50K 100K 150K R R R 1,000K R EM Remarks
C: Clean, R: Replace, L: Lubricate, I: Inspect
One-tray Paper Feed Unit (500 sheets x 1)
Item Relay Roller Bottom Plate Pad 20K 50K 100K 150K 1,000K EM C C Remarks Damp cloth Damp cloth
Two-tray Paper Feed Unit (500 sheets x 2)
Item Relay Roller Bottom Plate Pad 20K 50K 100K 150K 1,000K EM C C Remarks Damp cloth Damp cloth
LCT (2000 sheets)
Item Relay Roller Bottom Plate Pad 20K 50K 100K 150K 1,000K EM C C Remarks Damp cloth Damp cloth
Two-tray Finisher
Items Rollers Discharge Brush Sensors Jogger Fences 20K 50K 100K 150K 1,000K EM C C C I Remarks Damp cloth Dry cloth Blower brush Replace if required.
Four-bin Mailbox
Item Rollers Tray Paper Sensors 20K 50K 100K 150K 1,000K EM C C Remarks Damp cloth Blower blush or dry cloth
2-3
Preventive Maintenance
30 July, 2001
SPECIAL TOOLS
3. REPLACEMENT AND ADJUSTMENT
!CAUTION
Turn off the main switch and unplug the machine before beginning any of the procedures in this section. NOTE: This manual uses the following symbols. : See or refer to ! : Screw # : Clip ring $ : E ring
" : Connector
Replacement Adjustment
3.1 SPECIAL TOOLS
Part Number A2309352 G0219350 C4019503 Part Name Flash Memory Card - 4MB Loop-back connector - Parallel 20X Magnification Scope Q'ty 1 1 1
3-1
IMAGE ADJUSTMENT
30 July, 2001
3.2 IMAGE ADJUSTMENT
3.2.1 REGISTRATION
Image Area The image area shown in the illustration must be guaranteed. So A make sure that the registration is adjusted within the adjustment standard range as described below.
B
Feed direction
Image Area
C
A = B = C = 4.2mm (1.6")
G060R007.WMF
Leading Edge Adjusts the leading edge registration for each paper type and process line speed. Side to Side Adjusts the side to side registration for each paper feed station. NOTE: The side to side registration for the optional paper feed unit, LCT, and duplex unit can be adjusted with SP mode or with the user tools (Maintenance menu). Adjustment Standard · Leading edge (sub-scan direction): · Side to side (main-scan direction): Paper Registration Standard
The registration in both main and sub-scan direction may fluctuate within the following tolerance.
3 ± 0 mm 2 ± 0 mm
1st side · Sub-scan direction: · Main-scan direction: 2nd side in duplex · Sub-scan direction: · Main-scan direction:
0 ± 1.5 mm 0 ± 2 mm 0 ± 3 mm 0 ± 4 mm
3-2
30 July, 2001
IMAGE ADJUSTMENT
Adjustment Procedure
1. Enter SP mode and access SP5-997. 2. Print out the pattern (14: 1-dot trimming pattern) with SP5-997. NOTE: Registration may change slightly print by print as shown above. Therefore print a few pages of the trimming pattern for step 3 and 4, and average the leading edge and side-to-side registration values and adjust each SP mode. 3. Perform the leading edge registration adjustment. 1) Check the leading edge registration and adjust it with SP1-001. 2) Select the adjustment conditions (paper type and process line speed). 3) Input the value then press the [Escape] key. 4) Check the leading edge adjustment by generating the trim pattern. 4. Perform the side to side registration adjustment. 1) Check the side to side registration and adjust it with SP1-002. 2) Select the adjustment conditions (paper feed station). 3) Input the value then press the [Escape] key. 4) Check the side to side adjustment by generating the trim pattern.
3.2.2 COLOR REGISTRATION
Line Position Adjustment Normally, the automatic line position adjustment is executed under a specified condition to optimize the color prints. If color registration shifts, execute "Auto Adjust" with the user tools (Maintenance menu Color registration) or SP5-993-2 to do the forced line position adjustment. In addition, it is recommended to perform the line position adjustment under the following conditions:
· After transporting or moving the printer (if printers are pre-installed at the workshop and transported to the user location, forced line position adjustment should be done after printer installation is completed at the user location.) · When opening the drum positioning plate · When removing or replacing the motors, clutches, and/or gears related to the drum/development/transfer sections · When removing or replacing the transfer belt or laser optical housing unit
Adjustment for Line Speed of Fusing Unit
Optimize the line speed for the fusing unit when the color registration shifts more on the trailing edge compared with that on the leading edge, even after line position adjustment is executed. Adjust the speed of development motor-K with the following user tool in the Maintenance menu. "Menu/Maintenance/Color Regist./Fuser Adjust/Custom Adjust" Refer to Maintenance Guide 1 of the Operating Instructions for how to adjust this.
3-3
Replacement Adjustment
IMAGE ADJUSTMENT
30 July, 2001
3.2.3 PRINTER GAMMA
NOTE: Normally, the printer gamma is enough to adjust the color balance to archive the optimum print output. The gamma correction is only required for fine-tuning to meet the user requirements.
Adjustment Overview
Make the gradation scales on the printout smooth from the highlight to the shadow density. Adjust the CMY gradation scale at the top of the chart by balancing the density of the C, M, and Y gradation scales the CMY gray scale should change smoothly from minimum to maximum, and there should be no coloration. For each color, you can adjust 15 points between 0 (lowest density) and 255 (highest density). The gradation scales marked `Default Value' are printed according to the default gamma settings. The gamma adjustment changes the densities at the adjustable points in the gradation scale. The gradation scale marked "Current Value" shows the current settings. During the adjustment procedure, compare the "Current Value" gradation scale with the `Default Value'. Select the density for each of the 15 adjustable points, excluding points 0 and 255, from the `Default Value' gradation scale. The NVRAM holds three printer gamma settings, those saved this time (Current), those saved in the preceding adjustment (Previous), and the factory settings (Factory).
Adjustment Procedure
1. Enter SP mode. 2. Select "1.Service". 3. Select "Data Recall" and load the settings that will serve as the base for the adjustment. 4. Select "Mode Selection", and select the print mode that you are going to adjust. 5. To review the image quality for these settings, choose "Test Page" to print out a color calibration test sheet. 6. Select "Gamma Adj.". 7. Adjust the color density at each of the 15 points for a color (CMY and K). 8. When the density setting is complete for all colors, print out a color calibration test sheet again and make sure that the gradation scale for each printed color is smooth and that the CMY gradation scale is gray. Repeat the adjustment if there is an anomaly. 9. If the adjustment results prove satisfactory, execute "Data Save".
3-4
30 July, 2001
EXTERIOR COVERS
3.3 EXTERIOR COVERS
3.3.1 REAR COVER AND UPPER REAR COVER
1. Rear cover [A] (! x 4, 2 hooks) 2. Remove the optional mailbox if it is installed. 3. Upper exit cover [B] (1 hook), if the optional mailbox is not installed. 4. Open the upper right cover [C]. 5. Upper rear cover [D] (! x 4) [C] [A]
Replacement Adjustment
[B]
[D]
G060R201.WMF
3.3.2 PAPER