Minolta Di450 Manuale di Servizio

Di450/Di550SERVICE MANUAL[FIELD SERVICE]Return to Main FormReturn to Service FormExit Program

PS-31. During Transportation/Storage:•During transportation or when in storage, new P.W. Boards must not be indiscriminatelyremoved from their protect

D-81(3) F8 ATDC SensorMake this adjustment after any of the following procedures have been performed:• Developer replacement• ATDC replacement• Memory

D-82(4) F5 AIDC SensorMake this adjustment after any of the following procedures have been performed:• Developer replacement• ATDC replacement• Memory

D-83(5) Registration (CD)RequirementThis adjustment must be made after the PH Unit has been replaced.Adjustment Procedure1. Call the Adjust mode to th

D-84Setting InstructionsIf width A is longer than the specifications, make the setting value smaller than the currentone.If width A is shorter than th

D-85(6) Registration (FD)RequirementThis adjustment must be made after the PH Unit has been replaced.Adjustment Procedure1. Call the Adjust mode to th

D-86Setting InstructionsIf width A is longer than the specifications, make the setting value smaller than the currentone.If width A is shorter than th

D-87(7) Lead Edge EraseRequirementThis adjustment must be made after the PH Unit has been replaced and following Registra-tion (CD/FD).Adjustment Proc

D-88Setting InstructionsIf width A is longer than the specifications, make the setting value smaller than the currentone.If width A is shorter than th

D-89(8) Trail Edge EraseRequirementThis adjustment must be made after the PH Unit has been replaced and following Registra-tion (CD/FD).Adjustment Pro

D-90Setting InstructionsIf width A is longer than the specifications, make the setting value smaller than the currentone.If width A is shorter than th

PS-4✽ Only for Products Not Employing an Imaging Cartridge.1. During Transportation/Storage:•Use the specified carton whenever moving or storing the P

D-91(9) Loop AdjustmentRequirementAdjust so that a correct loop is formed at part A when paper is fed through.This adjustment is to be made when any o

D-92If the loop length falls outside the specified range, perform the following adjustment steps.4. Call the Adjust mode to the screen.5. Touch [Print

D-93(10) Erasure WidthRequirementAdjust so that no shade of the Original Scale is produced on the sample copy.This adjustment must be made when a shad

D-9414. Call the Tech. Rep. mode to the screen.15. Touch [I.R. (EDH) Check].16. Touch [Tech. Rep. Choice].17. Touch [Erasure Width].20. Touch [END] to

D-95(11) Zoom (CD)RequirementAdjust to eliminate any difference in width between the original test pattern and a test pat-tern copy.This adjustment mu

D-9612. Call the Adjust mode to the screen.13. Touch [IR].14. Touch [Zoom (CD)].Setting InstructionsIf width A on the test pattern copy is greater tha

D-97(12) Zoom (FD)RequirementAdjust to eliminate any difference in width between the original test pattern and a test pat-tern copy.This adjustment mu

D-9812. Call the Adjust mode to the screen.13. Touch [IR].14. Touch [Zoom (FD)].Setting InstructionsIf width A on the test pattern copy is greater tha

D-99(13) Scale (CD)RequirementAdjust so that the leading edge of the image of the scale on the copy sample meets therequirements.This adjustment must

D-10010. Call the Adjust mode to the screen.11. Touch [IR].12. Touch [Scale (CD)].Setting InstructionsIf the position of the leading edge of the scale

PS-5NOTES•Even when the PC Drum is only locally dirtied, wipe the entire surface.•Do not expose the PC Drum to direct sunlight. Clean it as quickly as

D-101(14) Scale (FD)RequirementAdjust so that the leading edge of the image of the scale on the copy sample meets therequirements.This adjustment must

D-10210. Call the Adjust mode to the screen.11. Touch [IR].12. Touch [Scale (FD)].Setting InstructionsIf the position of the leading edge of the scale

D-1033-8. OTHER ADJUSTMENTS(1) Adjustment of the Reference Position of Each DrawerRequirementThe adjustment should be made after Registration (CD/FD).

D-104Setting InstructionsIf width A on the test pattern is greater than the specifications, move the Edge Guide to therear.If width A on the test patt

D-105(2) Adjustment of the Reference Position of the Multi Bypass TrayRequirementThe adjustment should be made after Registration (CD/FD).Adjustment P

D-106(3) Adjustment of the Upper Right Door (Multi Bypass Unit)If the Right Door has been removed and reinstalled, the position of the actuator of Upp

D-107(4) Adjustment of the Position of the Scanner and 2nd/3rd Mirrors CarriageRequirementWith the Scanner fixed to the Scanner Drive Cables, there sh

D-108(5) Adjustment of the 2nd/3rd Mirrors Carriage Assy for Parallel AlignmentSetting InstructionsIf there is a gap between the 2nd/3rd Mirrors Carri

D-109(6) Adjustment of the Gap Between the Doctor Blade and Sleeve Roller(D.B. Adjustment)RequirementThe gap between the Doctor Blade and Sleeve Rolle

D-1104. MISCELLANEOUS4-1. INSTALLATION OF THE KEY COUNTER SOCKET (OPTION)1. Remove the Right Cover.2. Remove the Counter Cover.4002D227AA3. Swing down

D-1114-2. MOUNTING THE ORIGINAL SIZE DETECTING SENSORS(OPTION)NOTEWhen an Original Size Detecting Sensor has been added, turn “ON” “Original Size Dete

D-1124-3. FLASH MEMORYSoftware has conventionally been upgraded by replacing ROM on each board. This copieremploys flash memory for the system control

D-11310.TurnOFFthePowerSwitch.11. Plug the power cord into the power outlet.12. Turn ON the Power Switch.13. Call the Tech. Rep. Mode to the screen.14

D-114<List of Numeric Keys Corresponding to Languages>10-KeyPadNonepressed1234MarketingAreasU.S.A. andCanadaEurope 1 Europe 2 Europe 3OtherAreas

D-115(3) Rewriting the ECC Board Data (option)1. Unplug the power cord from the power outlet with the Power Switch OFF.2. Remove the Rear Cover.3. Ins

D-116(4) Rewriting the Master Board, Image Processing Board, and ECC Board (Option)SimultaneouslyNOTESteps 4 and 9 are to be performed only when the E

D-1174-4. REMOUNTING EPROMNOTEIf the PW Board has replaced, be sure to remount EPROM from the old to new PW Board.If the PW Board has been replaced an

D-118(2) Remounting EPROM on the Image Processing Board1. Remove the Image Processing Board.2. Remove EPROM (IC400) from the new Image Processing Boar

SWITCHES ON PWBs,TECH. REP. SETTINGS

DIS/REASSEMBLY,ADJUSTMENT

iCONTENTS1. CONTROL PANEL KEYS AND TOUCH PANEL ... S-11-1. Control Panel Keys ...

S-11. CONTROL PANEL KEYS AND TOUCH PANEL1-1. Control Panel Keys12345789106111213141516171819204002O279EA

S-21. HDD Lamp• Lights up to indicate that the Hard DiskDrive Kit (option) is being accessed.2. Access Key• Press to enter the access number whenCopy

S-31-2. Explanation of the Touch Panel(1) Basis ScreenThe Basic screen is the initial screen that appears when the copier is turned ON.1. Supplementar

S-4(2) Warning ScreensThe Warning screen may be a malfunction display, error display, warning display, or a cau-tion display.<Malfunction Display&g

S-52. FUNCTION OF SWITCHES AND OTHER PARTS ONPWBs2-1. PWB Location2-2. PWB-S (Tech. Rep. Setting Switches Board)Symbol Name DescriptionS25 Trouble Res

S-6(1) Clearing Procedures<Initialize>1. Turn OFF the Power Switch.2. With the circuit across pins of PJ2 closed, turn ON the Power Switch.3. Op

S-73. UTILITY MODE• Utility Mode is used to make various settings according to the user’s need.3-1. Utility Mode selection Screen• Press the Utility k

S-83-3. Settings in the Utility Mode(1) User’s Choice Mode• User’s Choice is used to make various settings according to the user’s need.1. User’s Choi

S-92. User’s Choice Function Tree✽ The function displayed on the Touch Panel is “Sleep” when a Printer Controller is con-nected to the machine and “Au

S-103. Settings in the User’s Choice ModeTouch PanelDisplaySetting (The default is ).Original CopyDefaultSelect the priority type of Original Copy set

S-11Touch PanelDisplaySetting (The default is ).Density Priority Specify the priority exposure mode that is selected automaticallywhen the Power Switc

S-12Touch PanelDisplaySetting (The default is ).“Smaller” Originals Select whether to enable or disable a copy cycle when it is initiatedwith an origi

S-13Touch PanelDisplaySetting (The default is ).Universal Tray Set the paper size for the Universal Tray.Special Paper Define the type of paper used f

S-14Touch PanelDisplaySetting (The default is ).Auto Shut-OffMode✽ When a PrinterController is notconnected.Select the time it takes the Auto Shut Off

S-15(2) Administrator Mode• The entry of the “Administrator #” set using the Tech. Rep. mode permits the settings ofthe following functions.1. Adminis

S-16Touch PanelDisplaySetting (The default is ).100 Accounts The copy track data of the selected page is displayed.“No.”: Enter the set account number

S-174. TECH. REP. MODE• This mode is used by the Tech. Rep. to check, set, adjust, and/or program various ser-vice functions.4-1. Tech. Rep. Mode Menu

S-184-3. Tech. Rep. Mode Menu Function TreeF1: Paper PassageF2: HV OutputF5: AIDC SensorF8: ATDC SensorF12: Test PatternOpt. Mem. CheckMemory CheckCom

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S-19Focus CheckZoom (CD)Zoom (FD)/ScaleScale (CD)Scanning CheckOrig. Size AdjustPosition/Zoom (FD)Position (CD)S-ADF Mode (CD)S-ADF Mode (FD)Skew Chec

S-20~Punch LoopAdjustTech. Rep. ModeSensorsPort SignalsFinisherI/O Check

S-214-4. Setting in the Tech. Rep. Mode(1) Function• This function allows the Tech. Rep. to make the various function tests and adjustments.<Functi

S-22Touch PanelDisplayOperationMemory Check Writes data in the image memory and reads it out to check for exactcorrespondence.The Touch Panel shows th

S-23Touch PanelDisplayOperationHard Disk Format Formats the Hard Disk.The Touch Panel shows the percentage of processing completed.If formatting has b

S-24(2) Tech. Rep. Choice• This function allows the Tech. Rep. to make various settings and adjustments.<Functions>System Set: Choice functions

S-25Touch PanelDisplaySetting (The default is ).Toner Empty Stop Select whether or not to inhibit copying when a toner-empty conditionis detected.T/C

S-26(3) System Input• This function allows the Tech. Rep. to change the fixed zoom ratios, set the paper size,define the marketing area, and make othe

S-27(4) Counter• Shows the number of copies made on each paper size or type.<Clearing a Count>1. Open the counter menu screen.2. Select the coun

S-28Touch PanelDisplaySettingJam Counts the number of misfeeds that have occurred at different loca-tions in the copier.Display DescriptionMCBJ System

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S-29Touch PanelDisplaySettingJamPM Counts the frequency of use of each of the different parts of thecopier.Display DescriptionFoldStapleFinisherNeedle

S-30Touch PanelDisplaySettingPM✽ See MAINTENANCE SCHEDULE (machine/options) for the appli-cable parts.Consumables Enter the count of the Waste Toner a

S-31Touch PanelDisplaySettingTroubleMalfunctionCodeDescriptionMalfunctionCodeDescriptionC004E/F Cooling Fan C0210 Transfer CoronaC0042 Fusing Unit Fan

S-32(5) I/O Check• The following functions are used to locate the faulty spot.• Shows the states of the I/O ports when the copier is in the standby st

S-33(7) ROM Version• Shows the ROM versions.Touch PanelDisplaySettingScanning Check Check the operations from image scanning to image processing.Norma

S-34(8) RD Mode• Make the initial settings of the copier for the Data Terminal.1. RD Mode Menu Function Tree✽ The “System Set” portion is displayed wh

S-352. Setting in the RD ModeTouch PanelDisplaySettingSystem Set Set the control system.Billing Center Displays the various setting screens.DT Setting

S-36(9) Level History• Displays the various level histories.Touch PanelDisplaySettingDate/Time Set Set the date and time-of-day for Date Printing.Comm

S-37(10) Admin. Mode• Makes the various settings.(11) Finisher• Checks the Finisher for operation and makes necessary adjustments.Touch PanelDisplaySe

S-385. SECURITY MODE• Allows the Tech. Rep. to set the various counters.5-1. Security Mode Menu Screen5-2. Security Mode Setting Procedure<Procedur

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S-395-3. Settings in the Security ModeTouch PanelDisplaySetting (The default is ).Key Counter Set to “ON” if a Key Counter is plugged in.NOTE:• If “OF

S-40Touch PanelDisplaySetting (The default is ).Vendor Mode Set the initial screen according to the type of vendor mounted on thecopier.Admin. Unit Se

S-416. ADJUST MODE• Used at the factory for making adjustments.NOTE:• Use only when the RAM Board has been replaced. If any of the adjustment values h

S-426-3. Adjust Mode Function TreeRegistration (CD)Registration (CD)PHC beam AdjustImage DensityATDC ControlSeparator ChargeLD BiasLeading Edge EraseT

S-436-4. Settings in the Adjust Mode<Function>Printer: Adjust functions relating to the printer.I.R.: Adjust functions relating to the I.R.EDH:

S-44Touch PanelDisplaySetting (The default is ).Leading EdgeEraseSelect whether to enable or disable the leading edge erase.Trailing EdgeEraseSelect w

S-45Touch PanelDisplaySetting (The default is ).Feed (FD) Set the correction value for the original scanning position in the FDdirection when the EDH

TROUBLESHOOTING13430

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iCONTENTS1. INTRODUCTION ...T-11-1. Reading the Text ...

iiC0924: 1st Drawer Lift-Up Motor’s failure to turn ...T-53(13) C0900: 3rd Drawer Paper Lift-Up Sensor malfunctionC0904: 3rd

T- 11. INTRODUCTION1-1. Reading the Text1. The paper transport failure troubleshooting procedures are given according to thesymptom. First identify th

T- 22-2. I/O Check List<I/O Check Screens>• The following screen is only typical and the port data shown does not necessarily repre-sent the act

T- 3<I/O Check Screens>• The following screens are only typical and the port data shown does not necessarily rep-resent the actual one.[Printer]

T- 4<I/O Check List>[Printer]Symbol Panel Display Parts/Signal NameOperation Characteris-tics/Panel DisplayInputBoardICNo.Por tNo.CN/PJNo.10PC10

T- 5PC1244thDrawer(PF-208)Lift-upPulse4thDrawer Lift-UpMotor Pulse SensorBlocked Unblocked ControlBoard(PWB-A)IC1 PB1 PJ5A-5APC135 Cabinet TonerBox Se

T- 6PC113 LCC2(PF-115)LeadingEdgePaper LeadingEdge Sensor 3PaperpresentPaper notpresentControlBoard(PWB-A)IC1 PD6 PJ9A-5PC142 Elev. MtrPulseElevator M

T- 7PC23 Univer-sal Tray1CD1 Paper Size Detect-ing Sensor CDA1Blocked Unblocked MasterBoard(PWB-A)IC3 PK0 PJ12A-3APC24 CD1 Paper Size Detect-ing Senso

T- 83. PAPER TRANSPORT FAILURE3-1. Paper MisfeedWhen a paper misfeed occurs, the Touch Panel shows the corresponding message, mis-feed location, and p

P-1Safety Precautions for Inspection and ServiceWhen performing inspection and service procedures, observe the following precautions toprevent acciden

D-11. SERVICE INSTRUCTIONS1-1. IDENTIFICATION OF FUSES AND CIRCUIT BREAKERS1-2. PRECAUTIONS FOR HANDLING THE LASER EQUIPMENT• The laser used in this c

T- 93-2. Misfeed Detection Sensor Layout• When PF-115 is Mounted• When PF-208 is MountedSynchronizing RollerSensor (PC1)4002T509AATransport Roller Sen

T- 1 03-3. Types of Misfeed Detection and Detection Timings• The following lists the types of misfeed detection and detection timings for different mi

T- 1 1<Duplex Paper Take-Up Misfeed>Type Detection Start DetectionLeading edge detection by PaperExit Sensor during turnover exitTurnover Feed E

T- 1 23-4. Misfeed Troubleshooting Procedures(1) Copier Paper Take-Up MisfeedRelevant Electrical Parts1stDrawer Paper Take-Up Sensor (PC3)2ndDrawer Pa

T- 1 3Copier Paper Take-Up Misfeed Troubleshooting Procedures• Paper is not taken up at all.Step Check Result Action1 Paper meets product specificatio

T- 1 4• Paper is stopped in the Vertical Transport Section.Step Check Result Action1 Vertical Transport Rollers are dirty with paperdust, deformed, or

T- 1 5(2) Multi Bypass MisfeedRelevant Electrical PartsTransport Roller Sensor (PC2)Manual Feed Paper Empty Sensor (PC18)Upper Vertical Transport/Manu

T- 1 6Multi Bypass Misfeed Troubleshooting Procedures• Paper is not detected.• Paper is not taken up at all.• Paper is stopped at the Transport Roller

T- 1 7(3) Transport/Separator MisfeedRelevant Electrical PartsTransport Roller Sensor (PC2)Synchronizing Roller Sensor (PC1)Transport Roller Motor (M8

T- 1 8Transport/Separator Misfeed Troubleshooting Procedures• Paper is stopped at the Synchronizing Rollers.• Paper is stopped near the PC Drum.• Pape

D-2NOTES• The Organic Photoconductor Drum is softer than CdS and Selenium Drums and is there-fore susceptible to scratches.• Even when the PC Drum is

T- 1 9• Paper is stopped at the Transport Rollers.Step Check Result Action1 Transport Rollers are dirty with paper dust,deformed, or worn.YES Clean or

T- 2 0(4) Fusing/Exit MisfeedFusing/Exit Misfeed Troubleshooting Procedures• Paper is stopped at the Fusing Unit.• Paper is stopped at the exit sectio

T- 2 1(5) PF-208 Paper Take-Up MisfeedRelevant Electrical Parts3rdDrawer Paper Take-Up Sensor (PC117)4thDrawer Paper Take-Up Sensor (PC125)Paper Leadi

T- 2 2PF-208 Paper Take-Up Misfeed Troubleshooting Procedures• Paper is not taken up at all.Step Check Result Action1 Paper meets product specificatio

T- 2 3• Paper is stopped at the Vertical Transport Rollers.Step Check Result Action1 Vertical Transport Rollers are dirty with paperdust, deformed, or

T- 2 4(6) PF-115 Paper Take-Up MisfeedRelevant Electrical Parts3rdDrawer Paper Take-Up Sensor (PC117)Paper Leading Edge Sensor 3 (PC113)Paper Leading

T- 2 5PF-115 Paper Take-Up Misfeed Troubleshooting Procedures• Paper is not taken up at all.• Paper is stopped at the Vertical Transport Rollers.Step

T- 2 6(7) Duplex Paper Take-Up MisfeedRelevant Electrical PartsTurnover Feed Entry Sensor (PC7)Turnover Feed Jam Sensor (PC8)Turnover/Exit Sensor (PC2

T- 2 7Duplex Paper Take-Up Misfeed Troubleshooting Procedures• Paper is stopped at the turnover section.Step Check Result Action1 Rollers at the turno

T- 2 8• Paper is stopped at the horizontal transport section.Step Check Result Action1 Horizontal Transport Rollers are dirty withpaper dust, deformed

D-32. DISASSEMBLY/REASSEMBLY2-1. DOORS, COVERS, AND EXTERIOR PARTS: IDENTIFICATIONAND REMOVAL PROCEDURES4002D025AC1234567891011121318171615144002D026A

T- 2 94. MALFUNCTIONSThe copier’s CPU is equipped with a self-diagnostics function that, on detecting a malfunc-tion, gives the corresponding malfunct

T- 3 0C004C Ventilation Fan Motor’sfailure to turn• The Lock signal remains HIGH for a continuousperiod of 1.5 sec. or more after the lapse of 10 sec.

T- 3 1C0500 Warming-up failure The surface temperature of the Upper Fusing Rollerdoes not reach a specified level even after the lapse ofa predetermin

T- 3 2C09102ndDrawer Paper Lift-UpSensor malfunction•The2ndDrawer Paper Lift-Up Sensor is not blocked(LOW) even after the lapse of 5 sec. after the 2n

T- 3 3C0B00Transport mechanismmalfunctionSee the relevant option service manual.C0B02C0B03C0B04C0B20Stapling Unit drive sys-tem malfunctionC0B21C0B24C

T- 3 4C0BC0Paper folding mechanismmalfunctionSee the relevant option service manual.C0BC1C0BC2C0BC3C0BF0 Control system malfunc-tionC0D50 Duplex Horiz

T- 3 5C1334 Duplex take-up printcommand error• A Duplex take-up print command is not received forthe paper to be taken up from the Duplex after thepap

T- 3 64-2. Troubleshooting Procedures by Malfunction Code(1) C0000: Fusing Motor’s failure to turnC0010: PC Drum Drive Motor’s failure to turnC0000C00

T- 3 7(2) C0040: Suction Fan Motor’s failure to turnC004C: Ventilation Fan Motor’s failure to turnC0040C004CRelevant Electrical PartsSuction Fan Motor

T- 3 8(3) C0042: Fusing Unit Cooling Fan Motor’s failure to turnC0042Relevant Electrical PartsFusing Unit Cooling Fan Motor (M23) Power Supply Board (

D-4No. Part Name Removal Procedure1 Original Glass Remove No.3.2 EDH Glass Remove No.3.3 EDH Glass Holder Raise No.13. → Remove four EDH Glass Holder

T- 3 9(4) C0045: IR Cooling Fan Motor malfunctionC0046: PH Cooling Fan Motor 1 malfunctionC0047: PH Cooling Fan Motor 2 malfunctionRelevant Electrical

T- 4 0C0045C0046C0047Step Check Result Action1 IR Cooling Fan Motor rotation: the voltageacross PJ4IC-4 on SCP Board and GND isDC24V (during high-spee

T- 4 1(5) C0049: Paper source option Vertical Transport Cooling Fan Motor malfunctionC0049Relevant Electrical PartsVertical Transport Cooling Fan Moto

T- 4 2(6) C004E: Power Supply Unit Cooling Fan Motor 1’s failure to turnC004F: Power Supply Unit Cooling Fan Motor 2’s failure to turnC004ERelevant El

T- 4 3C004FStep Check Result Action1 Power Supply Unit Cooling Fan Motor 2 rota-tion: the voltage across PJ6A-11 on PowerSupply Board and GND is DC24V

T- 4 4(7) C0072: Main Hopper Toner Replenishing Motor’s failure to turnC0090: Developing Unit Drive Motor’s failure to turnRelevant Electrical PartsTo

T- 4 5C0072C0090Step Check Result Action1 Toner Bottle turns when the Toner Bottle isturned a half turn and the Front Door is closed.NO Correct drive

T- 4 6(8) C0210: Image Transfer/Paper Separator Corona charge leak detectedC0210Relevant Electrical PartsPC Drum Charge/Developing Bias HV(HV1)Master

T- 4 7(9) C0400: Exposure Lamp’s failure to turn ONC0420: Exposure Lamp turning ON at abnormal timingC0400, C0420Relevant Electrical PartsExposure Lam

T- 4 8(10) C0500: Warming-up failureC0510: Abnormally low fusing temperatureC0520: Abnormally high fusing temperatureRelevant Electrical PartsUpper Fu

D-52-2. REMOVAL OF CIRCUIT BOARDS AND OTHER ELECTRICALCOMPONENTS• When removing a circuit board or other electrical component, refer to “Handling ofPW

T- 4 9C0500, C0510Step Check Result Action1 Upper Fusing Roller Heater Lamp turns ONwhen the Power Switch is turned ON.YES Correct thermistor formount

T- 5 0C0520Step Check Result Action1 Upper Fusing Roller Heater Lamp is ON evenafter the copier has completed warming up. OrLower Fusing Roller Heater

T- 5 1(11) C0602: Cable unwoundC0650: SHOME signal errorRelevant Electrical PartsScanner Motor (M51)Scanner Reference Position Sensor (PC51)Image Proc

T- 5 2C0602C0605Step Check Result Action1 Scanner moves as moved manually. NO Correct drive coupling.Rewind cables.2 Connector on SCP Board is connect

T- 5 3(12) C0910: 2ndDrawer Paper Lift-Up Sensor malfunctionC0914: 2ndDrawer Lift-Up Motor’s failure to turnC0920: 1stDrawer Paper Lift-Up Sensor malf

T- 5 4C0910, C0914C0920, C0924Step Check Result Action1Lift-Up Motor turns when the 2ndDrawer is slidout and then back in.NO Correct drive coupling.22

T- 5 5(13) C0900: 3rdDrawer Paper Lift-Up Sensor malfunctionC0904: 3rdDrawer Paper Lift-Up Motor’s failure to turnC0950: 4thDrawer Paper Lift-Up Senso

T- 5 6C0900, C0904C0950, C0954Step Check Result Action1Lift-Up Motor turns when the 3rdDrawer is slidout and then back in.NO Correct drive coupling.23

T- 5 7(14) C0990: Main Tray lifting motion failureC0994: Main Tray Elevator Motor’s failure to turnRelevant Electrical Parts3rdDrawer Paper Lift-Up Se

T- 5 8C0990C0994Step Check Result Action1I/O check for 3rdDrawer Paper Lift-Up Sensoroperation: the voltage across PJ8A-2 on Con-trol Board and GND is

D-6NOTEPWB-M and PWB-R: optional on both the 45-cpm copier and 55-cpm copier.Symbol Part Name Removal ProcedureINV Inverter Board Remove the Scanner.

T- 5 9(15) C0996: Main Tray lock release failureC0997: Shift Gate malfunctionRelevant Electrical PartsShift Gate Position Sensor (PC136)3rdDrawer Set

T- 6 0C0996C0997Step Check Result Action13rdDrawer Lock Solenoid operation: the volt-age across PJ10A-6 on Control Board andGND is DC24V (solenoid dee

T- 6 1(16) C0998: Shifter return failureC099C: Shift Motor’s failure to turnRelevant Electrical PartsShifter Home Position Sensor (PC140)Shifter Retur

T- 6 2C0998C099CStep Check Result Action1 I/O check for Shifter Return Position Sensoroperation: the voltage across PJ7A-7A on Con-trol Board and GND

T- 6 3(17) C0D50: Duplex Horizontal Transport Motor malfunctionC0D50Relevant Electrical PartsHorizontal Transport Motor (M131) Control Board (PWB-A)St

T- 6 4(18) C0E00: Main Erase Lamp’s failure to turn ONC0E00Relevant Electrical PartsMain Erase Lamp (LA2) Master Board (PWB-A)Step Check Result Action

T- 6 5(19) C0F24: AIDC Sensor contamination correction failureC0F24Relevant Electrical PartsAIDC Sensor Board (PWB-G) Master Board (PWB-A)Step Check R

T- 6 6(20) C0F32: ATDC Sensor malfunctionC0F33: Abnormally low T/C as detected by ATDC SensorC0F32, C0F33Relevant Electrical PartsATDC Sensor (UN2) Ma

T- 6 7(21) C10XX to C18XX• These malfunctions are concerned with faulty symptoms relating to software, hardware,and communications.Code ActionC10XXC11

T- 6 8C1401C1402C1410C1426C1428C1429C142AC14301. Reset the malfunction.2. If the same malfunction persists, change the Image Processing Board.C143E Se

D-7Removal of the Image Processing Board1. Remove the Rear Cover and Right Cover.2. Remove the Original Glass and EDH Glass.3. Remove eight screws and

T- 6 9(22) Copier does not turn ON.• Main Relay does not turn ON.Relevant Electrical PartsPower Switch (S1)Front Door Interlock Switch (S21)Upper Left

T- 7 09 Power Supply Board operation: the voltageacross PJ5C-3 on Power Supply Board andGND is AC10V when Power Switch is turnedON.NO Change Power Sup

T- 7 15. IMAGE FAILURE5-1. Image Failure Troubleshooting• In this chapter, troubleshooting is divided into “initial checks” and “troubleshooting proce

T- 7 25-3. Troubleshooting Procedures Classified by Image Failure• Image Failure Samples4002T010AA1. Blank copy 2. Black copy 3. Low image density4. F

T- 7 3(1) Blank copy(2) Black copySection Step Check Result ActionEngine1 Developing Unit is installed inposition.NO Install correctly.2 There is driv

T- 7 4(3) Low image density(4) Foggy background(5) High image densitySection Step Check Result ActionEngine1 Image Transfer Corona is dirty. YES Clean

T- 7 5(6) Black streaks or bands(7) Black spotsSection Step Check Result ActionEngine1 PC Drum is dirty. YES Clean or change.2 Cleaning Blade has corr

T- 7 6(8) Blank streaks or bands(9) Void areasSection Step Check Result ActionEngine1 PC Drum is scratchy and dirty. YES Clean or change.2 PC Drum Pap

T- 7 7(10) Smear on back(11) Uneven image density(12) Gradation reproduction failureSection Step Check Result ActionEngine1 Suction Belts are dirty. Y

T- 7 8(13) Rough image(14) Traces of PC Drum Paper Separator Fingers(15) Void areas along leading edge<Paper Separator Corona Output Adjustment Pro

D-810. Unplug two connectors, one flat cable.4002D034AC11. Unplug five connectors, two flat cables.12. Remove the harness from the edge cover.4002D258

T- 7 96. RESETTING THE MAINTENANCE CODE DISPLAY6-1. Details of Maintenance Codes6-2. Resetting the Maintenance Code Display(1) Entering the Tech. Rep.

Copyright2000 MINOLTA Co., Ltd.Printed in JapanUse of this manual shouldbe strictly supervised toavoid disclosure ofconfidential information.MINOLTA C

D-92-3. Removal of the Unit(1) Removal of the Multi Bypass Unit(2) Removal of the Suction Unit1. Swing down the Front Door and slide out the Developer

D-10(3) Removal of the Main Hopper Unit1. Swing down the Front Door and slide out the Developer Unit.2. Remove the Right Cover.8. Swing down the Trans

P-24. Handle the power cord with care and never use a multiple outlet.5. Be careful with the high-voltage parts.6. Do not work with wet hands.7. Do no

D-11(4) Removal of the IR Unit1. Swing down the Front Door and slide out the Developer Unit.2. Remove the Right Door, Left Door, Rear Upper Cover, Rea

D-1211. Unplug two connectors, one flat cable from theImaging Processing Board.4002D034AC12. Unplug four connectors at the front.4002D035AD13. Remove

D-1317. Remove two screws and the relay connector.4002D037AB18. Remove four screws and the right mountingbracket.4002D038AC19. Remove four screws and

D-14(5) Removal of the PH UnitNOTES• Do not place the PH Unit upside down, tilt it excessively, or subject it to excessive shock.• Replace the PH Unit

D-157. Remove three screws and the PH Cooling FanMotor mounting bracket Assy.8. Remove six screws and the mounting bracket.4002D046AB9. Remove the har

D-16(6) Removal of the Developing Unit(7) Removal of the Sub Hopper Unit(8) Removal of the Fusing Unit1. Swing down the Front Door.2. Swing down the T

D-17(9) Removal of the Upper Left Door (Exit/Duplex Switching Unit)1. Swing down the Front Cover and slide out the Fus-ing Unit.2. Remove the cable fr

D-182-4. PAPER TAKE-UP/TRANSPORT SECTION(1) Removal of the Paper Take-Up Roll, Paper Feed Roll and Paper Separator RollAssy.5. Disassemble the Paper S

D-19(2) Cleaning of the Paper Take-Up Roll and Paper Feed Roll(3) Cleaning of the Paper Separator Roll6. Unbending one tab of the holder, remove theho

D-20(4) Removal of the Drawer Lift-Up Motor1. Remove the Right Door.2. Slide out the drawer and remove one screw andthe right stopper.4002D065AB3. Pus

P-31. Precautions for Service Jobs2. Precautions for Servicing with Covers and Parts Removed3. Precautions for the Working Environment4. Precautions f

D-218. Disassemble the Drawer Lift-Up Unit.(5) Removal of the Upper and Lower Transport Rollers1156D022AA1. Swing down the Front Door and slide out th

D-228. Remove three screws and the Power Supply BoardMounting Bracket Assy.4002D070AB9. Remove three screws and the Flywheel.4002D071AB10. Remove thre

D-23(6) Cleaning of the Upper Transport Roller(7) Cleaning of the Lower Transport Roller15. Unhook one spring and snap off two E-rings. Thenremove the

D-24(8) Cleaning of the Vertical Transport Rollers(9) Removal of the Synchronizing Roller1. Open the Upper Right Door.2. Using a soft cloth dampened w

D-258. Remove three screws and the Flywheel.4002D071AB9. Unplug two connectors and remove five screwsand the Developing Unit Drive Assy.4002D072AB10.

D-26(10) Cleaning of the Upper Synchronizing Roller(11) Removal of the Lower Synchronizing Roller14. Snap off the E-ring and remove the bushing fromth

D-27(12) Cleaning of the Lower Synchronizing Roller(13) Removal of the Synchronizing Paper Dust Remover(14) Removal of the Transport Paper Dust Remove

D-28(15) Cleaning of the Paper Dust Remover(16) Disassembly of the Suction UnitNOTEWhen only the Paper Dust Remover is to be replaced,affix the new on

D-29(17) Disassembly of the Multi Bypass Unit5. Remove four Suction Belts.4002D085AB6. Remove the Suction Roller as shown on the left.4002D086AB1. Rem

D-305. Snap off the C-clip and remove the Separator RollAssy.1136D109AA6. Remove five screws and the Solenoid MountingBracket Assy.NOTEWhenever a sole

P-45. Precautions for the Laser Beam (Only for Products Employing a Laser)•Removing the cover marked with the following caution label could lead to po

D-31(18) Cleaning of the Multi Bypass Paper Take-Up Roll/Paper Feed Roll(19) Cleaning of the Multi Bypass Paper Separator Roll Assy.11. Snap off the E

D-322-5. OPTICAL SECTION(1) Cleaning of the Original Glass and EDH Glass(2) Cleaning of the Mirrors(3) Cleaning of the Lens1. Wipe clean the Original

D-33(4) Cleaning of the Scanner Rails/bushings(5) Cleaning of the PH Glass(6) Removal of the Scanner1. Remove the Original Glass.2. Wipe clean the Sca

D-34(7) Removal of the Exposure LampNOTEDo not remove the Scanner positioning screws.4002D264ABScanner mounting screwsScanner positioning screws4. Swi

D-35(8) Removal of the EDH Glass(9) Removal of the Scanner Drive Cable1. Remove the Original Glass and EDH Glass.2. Remove the Left Cover, Right Cover

D-36(10) Winding of the Scanner Drive Cable9. Remove one screw and the slide the rear pulleyand bushing toward the front.4002D113AA10. Remove the Scan

D-372. Wind the fixed bead end of the cable around thepulley five turns clockwise, from the rear toward thefront side.4002D003AA3. Wind the hook end o

D-387. Wind the hook end of the cable around the pulleyfive turns counterclockwise, from the rear towardthe front side.NOTEMake sure that no part of t

D-3913. Slide the rear pulley and bushing to the rear andsecure install one mounting screw.4002D118AD14. Wind the bead end of the cable around pulley

D-4020. Mount the Scanner Motor Mounting Bracket Assy.21. Remove the Cable Holding Jigs from the front and rear pulleys.22. Remove the Allen wrench.23

P-5•To reassemble the product, reverse the order of disassembly unless otherwise specified.•While the product is energized, do not unplug or plug conn

D-412-6. DEVELOPING UNIT(1) Remove of the Developing Unit1. Swing down the Front Door and slide out theDeveloping Unit.2. Move the PC Drum Charge Coro

D-426. Remove two screws and the Stopper and Devel-oper Scattering Prevention Plate.4002D125AB7. Remove two screws and the Cleaning Blade.4002D127ABNO

D-4311. Remove the PC Drum Paper Fingers and AIDC Sensor Board as shown below.NOTES• At removal and reinstallation, use care not to damage the tip of

D-44(2) Cleaning of the Developer Scattering Prevention Plate(3) Cleaning of the DS Positioning Collars(4) Cleaning of the Toner Antispill Trap(5) Rep

D-452. Remove the Toner Bottle from Main Hopper. Inserta brush through the toner port and into the toner.4002U022AA3. Apply toner to the entire surfac

D-46(6) Replacement of the Developer7. Apply a thin coat of toner to the surface of the PCDrum.4002U023AB8. Holding onto the both sides of the PC Drum

D-47(7) Cleaning of the AIDC Sensor Board(8) Cleaning of the PC Drum Paper Separator Fingers(9) Removal of the Toner Antispill Seal3. Turning the Buck

D-48(10) Cleaning of the Toner Antispill Seal(11) Removal of the Main Erase Lamp(12) Cleaning of the Main Erase Lamp FilterNOTEWhen reinstalling the T

D-49(13) Removal of the Ozone Filter (PC Drum Charge Corona)(14) Removal of the Ozone Filter (Image Transfer/Paper Separator Coronas)(15) Removal of t

D-502-7. PC DRUM CHARGE CORONA AND IMAGE TRANSFER/PAPER SEPARATOR CORONAS(1) Removal of the PC Drum Charge Corona(2) Cleaning of the PC Drum Charge Co

P-6ALL AreasCAUTIONDanger of explosion if battery is incorrectly replaced.Replace only with the same or equivalent type recommended by the manufacture

D-51(3) Cleaning of the PC Drum Charge Corona Grid MeshNOTEWhen handling the Comb Electrode, be sure to hold itonto its both ends.4002D147AB10 mm 17 m

D-52(4) Cleaning of the Comb Electrode(5) Removal of the Image Transfer/Paper Separator Coronas(6) Cleaning of the Image Transfer Corona Wire1. Clean

D-53(7) Removal of the Image Transfer Corona Wire(8) Cleaning of the Paper Separator Corona Wire1. Remove the End Caps from the front and rear endsof

D-54(9) Removal of the Paper Separator Corona Wire(10) Cleaning of the Image Transfer/Paper Separator Coronas Housing1. Remove the End Caps from the f

D-55(11) Cleaning of the Pre-Image Transfer Guide Plate1. Using a soft cloth dampened with alcohol, wipeclean the Pre-Image Transfer Guide Plate.4002D

D-562-8. FUSING UNIT(1) Disassembly of the Fusing Unit1. Slide out the Fusing Unit.2. Remove two screws and the Fusing Unit FrontCover.4002D153ABNOTEW

D-579. Remove four harness holders.10. Remove the Upper Fusing Roller Heater Lamp har-ness from one wiring saddle.11. Unplug two connectors of the Hea

D-5819. Remove two screws and the Web Roller Assy.4002D162AD20. Remove two springs.21. Remove one shoulder screw and the Lower ExitGuide Assy.4002D165

D-59NOTEWhen tightening the roller pressure screws with thesprings installed, tighten the front and rear ones alter-nately until there is no clearance

D-6027. Remove one shoulder screw and the Pre-FusingGuide Plate.28. Remove two springs.4002D172AANOTEWhen reinstalling the Pre-Fusing Guide Plate, mak

PS-1PRECAUTIONS FOR SERVICEWhen performing inspection and service procedures, observe the following precautions toprevent mishandling of the machine a

D-61(2) Removal of the Upper Fusing Paper Separator Fingers(3) Cleaning of the Upper Fusing Paper Separator Fingers(4) Cleaning of the Lower Fusing Pa

D-62(6) Removal of the Upper Fusing Roller Thermistor(7) Cleaning of the Upper Fusing Roller Thermistor(8) Removal of the Lower Fusing Roller Thermist

D-63(9) Cleaning of the Lower Fusing Roller Thermistor(10) Removal of the Upper Fusing Roller Thermostat(11) Cleaning of the Upper Fusing Roller Therm

D-64(12) Removal of the Web Roller(13) Removal of the Web Pressure Roller1. Remove the Web Roller Assy.2. Remove two screws and the Web Roller bushing

D-65(14) Removal of the Misfeed Removal Knob Bushing(15) Removal of the Fusing Unit Drive Coupling Gear2-9. TURNOVER UNIT(1) Cleaning of the Turnover

D-663. ADJUSTMENT3-1. ADJUSTMENT JIGS AND TOOLS USED4002D503AA1136D004AA1074D129AA1136D003AA4002D504AA4002D505AA1136D005AA1136D001AA7. PC Drum Paper S

D-673-2. ADJUSTMENT REQUIREMENTS LISTAdjustment Item Requirements Ref. PageTouch Panel Adj. Automatically adjusted ☞ D-79Orig. Size Adjust→☞ D-80F8 AT

D-683-3. ADJUSTMENT OF SWITCHES(1) MicroswitchesThe following microswitches are used in various parts of this copier.RequirementOut-of-Adjustment (Whe

D-69(2) Adjustment of Front Door Interlock Switch1. Swing down the Front Door.2. Remove the Left Cover.3. Slide out the Fusing Unit.4. Remove four scr

D-703-4. ADJUSTMENT OF BELT TENSIONChecks after Adjustment• Turn the Timing Belt and check that all the Pulleys and grooves of the Belt fit securely.•

PS-2•Be sure to unplug the copier from the outlet before attempting to service the copier.•The basic rule is not to operate the copier anytime during

D-71(3) Adjustment of the Scanner Motor Timing Belt7. Loosen two screws by which the Tension Lever 2 ismounted as shown on the left and then re-tighte

D-723-5. SOLENOID POSITION ADJUSTMENT(1) Adjustment of Manual Feed Paper Pick-Up SolenoidRequirementThe Paper Stoppers should be fixed perpendicularly

D-735. Move the Pick-Up Solenoid in the direction of arrow➀, then slowly move it in the direc-tion of arrow➁.6. Move the Pick-Up Solenoid up to the po

D-74(2) Adjustment of Turnover Roller Retraction SolenoidRequirementThe gap between the E-ring of the plunger and the Retraction Solenoid should be 3

D-75(3) Adjustment of Exit/Duplex Switching SolenoidRequirementThe gap between the E-ring of the plunger and the Switching Solenoid should be 3 ± 0.2m

D-76(4) Positioning of the PC Drum Paper Separator Fingers(Separator Finger Solenoid)RequirementThe gap between the three PC Drum Paper Separator Fing

D-77(5) Adjustment of Turnover Route Switching SolenoidRequirementThe gap between the E-ring of the plunger and the Switching Solenoid should be 3 ± 0

D-783-6. ACCESSING THE TECH. REP. MODE AND ADJUST MODE(1) Accessing the Tech. Rep. Mode1. Press the Utility key.2. Touch [Meter Count].3. Press the fo

D-793-7. ELECTRICAL/IMAGE ADJUSTMENT(1) Touch Panel Adj.Make this adjustment after either of the following procedures have been performed:• Memory Cle

D-80(2) Orig. Size AdjustMake this adjustment after any of the following procedures have been performed:• Memory Clear• The original size is incorrect