No Go to #21 in this TAG Yes Continue | HP C30 instruction

8 Turn the printer off.

•Reconnect J/P12.

•Disconnect J/P41.

•Turn the printer on.

•Check J/P8-11 for +24 Vdc.

Is the voltage +24 Vdc?

No: Replace the PCL board, then turn to TAG 002: Check & Problem Resolution.

Yes: Continue.

9 Turn the printer off.

•Reconnect J/P41.

•Disconnect J/P23.

•Turn the printer on.

•Check J/P8-11 for +24 Vdc.

Is the voltage +24 Vdc?

No: Continue.

Yes: Replace the high voltage unit, then turn to TAG 002: Check & Problem Resolution.

10 Turn off the printer and unplug the power cord.

•Disconnect J/P41.

•Check P41-35 to P23-5 for continuity to ground.

Is there continuity?

No: You have failed to isolate the problem. Return to the beginning of this TAG.

Yes: Repair or replace the connectors or wiring from P41-35 to P23-5, then turn to TAG 002: Check & Problem Resolution.

11 Turn the printer off.

•Reconnect J/P11.

•Disconnect J/P91.

•Turn the printer on.

•Check J/P8-13 for +24 Vdc.

Is the voltage +24 Vdc?

No: Go to #21 in this TAG.

Yes: Continue.

3-94	Troubleshooting Analysis Guide (TAGs)

Image 146

HP C30 manual No Go to #21 in this TAG Yes Continue

Contents

Cut Sheet Printers Maintenance Manual Models C30 and C30D Printing History Trademarks Conventions Using This Manual Preface Other Manuals Page Contents Viii Diagnostic Tests Print Quality Samples Wiring Diagrams and Electrical Data Removal/Replacement Procedures Xii General Printer Maintenance Options Every-Call Cleaning Procedure Abbreviations and Acronyms Printer Troubleshooting Overview Printing and Troubleshooting Overview Theory of Operation Receiving data Host Duplex Printing Paper Path and Cycle SequenceSimplex Printing Paper Path Path Error Code Technical DefinitionsError Code Technical Definitions Type Description Paper OPC Fuser Assembly Controller Errors Sensor and Switch Locations Top view Front view Developer right view Developer left view Right side view Top left, duplex tray view Front view Sensor and Switch List Sensor/Switch Name Troubleshooting Overview General Troubleshooting Tips Problem Printer or Host? Reading the Error Log Protocol Converters Confirming Line Power Sample TAG Using the Troubleshooting Analysis Guide TAGTAG 001 Troubleshooting a Problem Did only the Ready light come on with no numeric display? Options reviews printer options HCI, HCO information Checking Continuity Standard ProceduresPower-on-reset POR Producing a Toner Patch Installing the Interlock By-pass ToolProducing a Developed Image Completing a Service Call Producing a Toner Patch on the Photoconductor Unit Clearing the Error Log Drive Indication Display TAG Cross- Reference Tables TAG Cross-Reference Tables Error Code/TAG Cross-Reference Printer Error Codes Printer Error Code Meaning Go to TAG PCL Error Codes PCL Error Code Meaning Go to TAG PCL Error Codes PCL Error Code Meaning Go to TAG IGS Software Error Codes IGS Firmware Error Codes IGS Firmware Error Code MeaningPCL Failure Error Codes Code TAG Cross- Reference Tables TAG Cross- Reference Tables Print Quality/TAG Cross-Reference 11. Blank Print TAGs Blank Prints Go to TAG 14. Skewed Path TAGs 12. Light Print TAGs Light Prints Go to TAG13. Dark Print TAGs Dark Prints Go to TAG 15. Misregistration TAGs Misregistered Prints Go to TAG Print Quality/TAG Cross-Reference 20. Cassette Problem TAGs Cassette Problems Go to TAG 18. Operator Panel Problems TAGs Go to TAG19. Output Tray Problem TAGs Output Tray Problems Go to TAG Mechanical Malfunction/TAG Cross-Reference 22. Counter Problem TAGs Counter Problems Go to TAG Print Quality/TAG Cross-Reference Troubleshooting Analysis Guide TAGs Troubleshooting Analysis Guide TAGs Troubleshooting Analysis Guide TAGs Troubleshooting Analysis Guide TAGs TAG 001 Troubleshooting a Problem Did the power-on-reset end with an error code? Does an error code appear? Did an error code appear while running the prints?Did an error code appear while running test prints? Display? Can you identify the problem? TAG 002 Check & Problem Resolution Fuser unit may be hot Handle gently to avoid breaking the charger wire Have you completed the every-call cleaning procedure? Are the test prints clean and printing correctly? Display Indication Do the error log entries appear as 0000? If 7-0 appears, press Stop immediately. do not Proceed Is it in good working order? Is error code 010 displayed?TAG 010 Upper Cassette Malfunction Does the voltage change from 0 Vdc to +12Vdc? Troubleshooting Analysis Guide TAGs Does 1-8 appear on the operator panel? Is error code E10 displayed?E10 Envelope Tray Out of Envelopes Does the voltage change from 0Vdc to +12Vdc? Troubleshooting Analysis Guide TAGs Is error code 011 displayed? TAG 011 Lower Cassette Malfunction Troubleshooting Analysis Guide TAGs Are any of these parts damaged? TAG 012 Upper Cassette Not LatchedIs the upper cassette properly latched? Is there continuity? Is 1-0 displayed?Is a value other than 1-0 displayed? Is there continuity? TAG E12 Envelope Tray or Feeder Not Latched Is 1-0 displayed? Is there continuity? TAG 013 Lower Cassette Not Latched Is the lower cassette properly latched? Install the lower cassette Are all the parts in good working order? Is error code 020 still displayed?TAG 020 Paper Jam/Misfeed in Upper Cassette Area Is the voltage +24 Vdc? Is error code 021 displayed?Does the voltage change from 0 Vdc to +12 Vdc? Is there continuity on all? Does the voltage change from +24 Vdc to 0 Vdc? Is there continuity? TAG 021 Paper Jam/Misfeed in /Lower Cassette Area Is error code 020 displayed? Then turn to TAG 002 Check & Problem Resolution Is there ground? Is there continuity? TAG 022 Paper Jam in the Transfer or Fuser Area Is paper wrapped around the heat roller? Does the multiple feed problem still exist? Is error code 022 still displayed?Has the problem been resolved? Has the fuser unit been replaced recently? Does the paper timing roller shaft turn? Is there continuity on both? Is there improper registration? Are they damaged or contaminated with toner?Are these parts in good working order? Are the parts in good working order? Does the vacuum transport unit fan hold the paper in place? Is the voltage 100 Vac? Is paper stopped or jammed at the output tray? Is error code 023 displayed?TAG 023 Paper Jam in the Output Area Are they in good working order? TAG 025 Paper in Input Area Before Printing Is error code 025 displayed?Is error code 025 still displayed? Is the voltage +12 Vdc? Then turn to TAG 002 Check & Problem Resolution Is error code 026 displayed? TAG 026 Paper in Output Area Before Printing Are the voltages correct? Is error code 030 still displayed?TAG 030 Developer Bias Short/Failure Has the developer unit been replaced recently? Is the voltage +24 Vdc? Check TP3-27 for +24 Vdc TAG 031 Toner Patch Reference Level Too Low Is there continuity? Is the toner patch developed and properly positioned? TAG 032 Toner Patch Too LightHave the photoconductor unit been replaced recently? Are all connectors and wiring connected properly? Do the prints appear light or blank? Has the photoconductor unit been replaced recently? TAG 035 Out of Toner or ADD Toner Indicator OnIs error code 035 displayed? Has the seal has been removed from the toner cartridge? Is there continuity? TAG 036 Developer Unit Not Installed Is error code 036 displayed? Does the photoconductor belt rotate? Is error code 040, 041, or 042 still displayed?TAG 040 Photoconductor Seam Sensor Malfunction Is it in good working order? Yes Go to TAG 002 Check & Problem Resolution Is the voltage between +2 to +6 Vdc? Figure a 12V Has the main charger been replaced recently? Is error code 044 displayed?TAG 044 Main Charger/Transfer Charger Circuit Open Is error code 051 displayed? Is paper jammed inside the transfer charger housing?Is error code 046 displayed? Is error code 050 displayed? Continuity TAG 045 Main Charger Circuit Shorted Is error code 045 displayed?Is error code 045 still displayed? Is there continuity? TAG 050 Transfer Charger Circuit Shorted Is there continuity to ground? Has the problem been resolved? Is the value displayed less than 220? Is error code 055 displayed?TAG 055 Erase Lamp Malfunction Did you measure +12 Vdc? Is there continuity? Is error code 070 or 073 displayed? TAG 070 Fuser Unit Malfunction Does the fuser lamp light? Is the voltage approximately +5 Vdc? Is the resistance between I KΩ and 400 KΩ? Is the voltage at least 100 Vac? Was the voltage at least 100 Vac? Is the resistance approximately 550KΩ? Is there continuity to ground on either? Is error code 071 displayed during power-on-reset?TAG 071 Open Fuser Thermistor TAG 072 Fuser Unit Temperature Too High Does the lamp turn on before error code 072 is displayed? Is the resistance at least 1K‡WW? Is there resistance? Does the output tray move back and forth? TAG 083 Job Offset Mechanism MalfunctionDoes the output tray jog continuously? Is the voltage +12 Vdc? Is the voltage +12 Vdc? Does the error code change from 082 to 081? Is error code 083 displayed?Does the error code change from 081 to 082? TAG 097 +12 Vdc Power Shorted or Sensing Problem Does the printer have an attachment option? Is the voltage +12 Vdc? No Go to #19 in this TAG Yes Continue Is the voltage +12 Vdc? Is there continuity to ground at either? Is there continuity at either? No Go to #39 in this TAG Yes Continue Is the voltage +12 Vdc? Is the voltage at +12 Vdc? Then turn to TAG 002 Check & Problem Resolution TAG 098 -12 Vdc Power Shorted Is the voltage -12 Vdc? Is the voltage at J/P8-8 -12 Vdc? TAG 099 +24 Vdc Power Shorted Is the voltage +24 Vdc? No Go to #21 in this TAG Yes Continue Is the voltage +24 Vdc? Is the voltage +24 Vdc? No Go to #26 in this TAG Yes Continue No Continue Yes Go to #31 in this TAG Is there continuity? 100 Troubleshooting Analysis Guide TAGs Troubleshooting Analysis Guide TAGs 101 Was an error code displayed during the power-on-reset? TAG 100 PCL Board Interface Malfunction TAG 101 IGS Controller Diagnostic Failure Is error 101 displayed on the operator panel TAG 130 Diskette/Disk Drive Malfunction Is error code 451 displayed?Is error code 451 still displayed? Is the voltage +5 Vdc? Is error code 572 displayed?Is error code 573 displayed? Is error code 576 displayed? Is error code 574 displayed?Is error code 575 displayed? Is there continuity on any? Can the printer run test prints? Is error code 130, 131, 133, or 134 displayed?Is there continuity to ground on any? Does this printer contain a hard drive? Was an error code displayed?TAG 200 IGS Internal Communication Malfunction Troubleshooting Analysis Guide TAGs 109 Are the connectors or wiring damaged? Is error code 201 displayed?Is error code 121 or 123 displayed? TAG 201 IGS-PCL Interface Malfunction Replace the IGS board Power-on-reset the printer TAG 405 IGS Bit-Map RAM Malfunction 606, 600 TAG 500 +5 Vdc Power Malfunction Is the operator panel still blank? Check J/P42-1 for +5 Vdc Troubleshooting Analysis Guide TAGs 115 No Go to #20 in this TAG Yes Continue Troubleshooting Analysis Guide TAGs 117 TAG 600 AC Power Malfunction Is the voltage +100 Vac? Does the fuse have continuity? Are the interlock switch actuators working properly?Was the power-on-reset successful? Does the front cover interlock switch have continuity? Troubleshooting Analysis Guide TAGs 121 122 Troubleshooting Analysis Guide TAGs Close the top cover Check P4-5 for continuity to ground 124 Troubleshooting Analysis Guide TAGs Did you hear the tone after pressing each function key? TAG 610 Operator Panel MalfunctionDo the status lights stay on continuously? Is one of the function keys not working properly? 126 Troubleshooting Analysis Guide TAGs Is there an open or short to ground continuity? Wiring Table CLR Paper light may be very dim Does Output Tray Full come on too soon? Is a high capacity output unit installed on the printer?TAG 700 Output Tray Circuit Malfunction Is the output tray full sensor in good working order? Is the paper size sensing mechanism in good working order? TAG 702 Paper Size Detection MalfunctionDoes the display still indicate the incorrect paper size? Is the circuit board or mounting damaged or contaminated? Is there a wiring problem? Is the circuit board or mounting contaminated or damaged? Wiring for the Lower Paper Size Sensor Wiring for the Upper Paper Size SensorWiring for the Lower Paper Size Sensor Are all parts in good working order? TAG 703 Upper Cassette MalfunctionIs the upper cassette in good working order? TAG 704 Lower Cassette Malfunction Is the lower cassette in good working order? TAG 705 Multiple Paper Feeding Paper cassette Is the print on the paper skewed? TAG 706 Paper Damaged or WrinkledAre the prints wrinkled or damaged? Is either part damaged, worn, or contaminated? TAG 707 Upper Paper Guide Assembly Not Closing Did the upper paper guide lock into place? TAG 750 Counter Malfunction Is the counter functioning properly? Troubleshooting Analysis Guide TAGs 141 TAG 751 Main Drive Motor Runs Continuously TAG 753 External Communications Malfunction Did the diagnostic test run properly? Is there a problem with the connectors or pins? Does the problem appear while using RS-232C communications? RTS TAG 754 Attachment Option Malfunction Are all voltages correct? TAG 800 Prints Blank or With Dark Horizontal Bands Prints With Light Horizontal Bands Is a developed image on the photoconductor? Is the coupling damaged? Do the LEDs illuminate?Are the prints blank without dark bands? Does the magnetic brush turn? Troubleshooting Analysis Guide TAGs 151 TAG 801 Prints Light or Light With Carrier Particles Are they jagged? Is the developed image on the photoconductor correct? Does the coupling turn? Do both drive couplings rotate freely? Is the voltage correct? Does the voltage change to 0 Vdc?Is a meter with a high voltage probe available? Is the voltage 0 Vdc? Troubleshooting Analysis Guide TAGs 157 TAG 802 Prints With Voids or White Spots Replace the fuser unit Run test prints TAG 803 Prints With Light or White Vertical Streaks Are there vertical streaks on the photoconductor belt image? TAG 804 Prints With Light Horizontal Bands TAG 805 Black Prints Is the photoconductor belt covered with toner? Replace the high voltage unit Run test prints Replace the IGS board Run test prints Cleaner unit TAG 806 Prints with Dark Spots or Scratches Does the paper have any problems? Are these mechanisms in good working order? Is the problem with the upper cassette? TAG 807 Misregistered/Skewed Prints Simplex Is the problem with the lower cassette? Is the problem also with the lower cassette?Are these parts clean and in good working order? PCL Board Switch Settings DIP Switches Number Is misregistration the symptom of the problem?Did resetting the switches resolve the problem? Troubleshooting Analysis Guide TAGs 171 TAG 808 Prints Overtoned/Dark Vertical Streaks Does the coupling turn continuously? Is there continuity at each? Is it connected properly? Troubleshooting Analysis Guide TAGs 175 Repair or replace the PCL board Run test prints TAG 809 Blurred or Smeared Vertical Streaks on Prints Does the vacuum fan hold the paper? Is the vacuum transport unit in good working order? Troubleshooting Analysis Guide TAGs 179 TAG 810 Uneven Density or Dark Areas on Prints Troubleshooting Analysis Guide TAGs 181 TAG 811 Background/Residual Images/Dark Prints Are all the erase lamps on? 184 Troubleshooting Analysis Guide TAGs Are any of the values out of specification? Is the voltage 0.5 Vdc? 186 Troubleshooting Analysis Guide TAGs TAG 812 Uneven or No Fusing on Prints Connectors or wiring AC power supply unit PCL board Is the paper within specification? Does the lamp light within 1.5 minutes? TAG 813 Residual Images on Prints Is the belt attached? 190 Troubleshooting Analysis Guide TAGs TAG 815 Prints Resulting From Printhead Malfunctions Is error code 090 displayed? TAG 900 Top Cover Interlock Malfunction, Duplex Troubleshooting Analysis Guide TAGs 193 TAG 901 Misregistration/Skewed Prints Duplex Did the test indicate an error code? 196 Troubleshooting Analysis Guide TAGs Troubleshooting Analysis Guide TAGs 197 TAG 902 Paper Jam in Duplex Area Is the duplex paper path sensor in good working order? Is the a roller clutch in good working order? Is the input solenoid in good working order? Is the C roller solenoid in good working order? Is the feed motor in good working order? Turn the printer on Check J/P306-3 to J/P306-4 for +5 Vdc Print Quality Samples Print Quality Samples Print Quality Samples Sample 1 Good Quality Print Good Quality Print Sample 2 Washout Washout Sample 3 Blank Print Blank Print Sample 4 Light Print Light Print Sample 5 Light Print With Background Light Print With Background Sample 6 Voids or White Spots Voids of White Spots Sample 7 Light Vertical Streaks Light Vertical Streaks Sample 8 Blank Vertical Bands Blank Vertical Bands Sample 9 Light Horizontal Bands Light Horizontal Bands Sample 10 Black or Dark Print 10.Black or Dark Print Sample 11 Dark Specks, Lines, or Areas 11.Dark Specks, Lines, or Areas Sample 12 Dark Vertical Lines 12.Dark Vertical Lines Sample 13 Skewed Prints 13. Skewed prints Sample 14 Misregistration 14.Misregistration Sample 15 Overtoned Print 15.Overtoned Print Sample 16 Blurred Images or Characters 16.Blurred Images or Characters Sample 17 Varying Print Density 17.Varying Print Density Sample 18 Background 18. Background Sample 19 Residual Images 19.Residual Images Sample 20 Wrinkles 20. Wrinkles Sample 21 Fusing Problems 21.Fusing Problems Diagnostic Tests 001 Diagnostic Tests How to Run Diagnostics Paper Size Codes Display Indication Operator Panel TestUpper Cassette Test Lower Cassette Test Intentionally excluded Sensor Test Sequence Sensor Test Displays Sensor Description Clutch Test Displays Indication Paper Transport Clutch Test SequenceCounter Test Photoconductor Test Jogging Motor Test Error Displays IndicationJogging Motor Test Toner Supply Motor Test Error Displays Indication Toner Supply Motor Test Main Charger Test Displays Indication Main Charger Test Error Displays IndicationMain Charger Test Transfer Charger Test Displays Indication 10. Transfer Charger Test Error Displays IndicationTransfer Charger Test 11. Erase Lamp Test Error Displays Indication Erase Lamp Test 12. Negative Developer Bias Test Displays Indication 13. Negative Developer Bias Test Error Displays IndicationNegative Developer Bias Test 14. Duplex Motor Feed Test Displays Indication 15. Duplex Motor Feed Test Error Displays IndicationDuplex Feed Motor Test 16. Duplex Input Sensor Test Displays Sensor Description 17. Duplex Input Sensor Test Error Displays IndicationDuplex Input Sensor Test Sequence 18. Duplex Clutch Test Displays Indication 19. Duplex Clutch Test Error Displays IndicationDuplex Clutch Test Sequence Duplex Tray Paper-Guide Motor Test High-Capacity Output Unit Test 22. High-Capacity Input Unit Test Displays Indication High-Capacity Input Unit TestEnvelope Fuser Solenoid Test 23. Envelope Fuser Solenoid Test Displays Indication EIGS/MIGS Board Test EIGS/MIGS Board Test Continuous Loop Communication Loop-back Test Single Loop Communication Loop-back Test Continuous Loop Eigs Program RAM Test Continuous Loop EIGS/MIGS Bit Map Test Single Loop EIGS/MIGS Bit Map Test Continuous Loop LED Printhead Test Format Disk/Clear Error Log26. LED Printhead Test Error Displays Indication Disk Drive Test Single Loop With Stop on Error 27. Disk Drive Test Drive Indications Display Disk Drive Test Continuous Loop Wiring Diagrams and Electrical Data Wiring Diagrams and Electrical Data Wiring Diagrams and Electrical Data Connector J/P Index Wiring Diagrams and Electrical Data Connector J/P Index Connector Schematic Location Simplex/duplex A4 Connector Locations Connectors Inside the Front Cover Connectors Inside the Left Cover Connectors on the Duplex Cover Connectors Inside the Right Cover Connectors Inside the Top Cover Connectors on the Back Cover Jogging Motor Control Board Connectors Inside the Back Cover J/P2-14Signal Interface Board Connectors Inside the Back Cover J/P18-62 Connectors Inside the Back Cover J/P 330 Voltage Isolation Diagrams Simplex -12 Vdc Circuits Simplex +12 Vdc Circuits Simplex +24 Vdc Circuits Duplex +5 Vdc Circuit Duplex +12 Vdc Circuits Ground System RS-232C Host Interface RS-232C DCE to DTE Signal Definitions Pin FunctionHost Interface Reference Special Considerations for RS-232 Host Interface Users Standard DCE to DTE Signal Definition Host PrinterStandard DCE to DTE RS-232C Cable DTE Host to Printer Option IBM PC/XT to Printer IBM PC/AT to Printer RS-422 Host interface RS-422 Host Interface Connector Wiring PrinterMacintosh Communication Port to Printer Centronics Parallel Signal Definitions Pin Function Name Centronics Parallel Host Interface 10. IBM Parallel to Printer Connector Wiring Host Signal IBM Parallel to Printer Mode PRN,,P Circuit Board Settings Signal Interface Board Settings PCL Board Settings Printhead Circuit Board Settings Wiring Diagrams and Electrical Data Removal/Replacement Procedures Vacuum Transport Unit Removal Simplex 100 Before You Begin Power ConsiderationsRemoval Photoconductor Removal Front Cover Removal Back Cover Removal Lower Back Cover Removal Replacement Note Left Side Cover Removal Service kit is attached inside the right side cover Right Side Cover Removal Simplex Right Side Cover Removal Duplex Vacuum Transport Unit Removal Simplex Back Detail Vacuum Transport Detail Vacuum Transport Unit Removal Duplex Spring Detail Support Assembly Detail Top Cover Removal Top Cover Support Removal Support Detail Top Cover Hinge Removal Hinge Detail Rear Duplex Cover Removal Mounting Screw Detail Front DuplexCover Removal Gas Spring Detail Operator Panel Removal Counter Removal IGS Board Removal PCL Board Removal Printhead Assembly Removal Front Detail Mounting Screws Disk Drive Housing Removal Cooling Fan Removal Cooling Fan Detail Duplex Fan Removal Toner Motor Removal Toner Motor Detail AC Power Supply Removal AC Power Supply Removal DC Power Supply Removal Right Side Detail Back Detail High Voltage Unit Removal PhotoconductorSeam Sensor Removal Front Detail Photoconductor Rear Guide Rail Removal Spring Signal Interface Board Removal Power Control Board Removal Power Control Board Detail Jogging Motor Power Control Board Detail Jogging Motor Control Board Removal Upper or LowerPaper Size Sensor Removal Upper Paper Size Sensor Detail Upper Cassette Mount Removal Upper Cassette Mount Removal Upper Cassette Mount Removal Cassette Mount Detail Left Side Detail Front Mounting Screw Detail Back Mounting Screw Detail Lower Cassette Mount Removal Lower Cassette Mount Removal Tray Lower Bracket Lower Cassette Mount Upper Paper Guide Removal Springs Cassette Release Cover Upper Paper Guide Roller Removal Lower Paper Guide Removal Paper Timing Guide Removal Paper Feed Drive Cover Mounting Screw CN58 Cleaner Drive Belt Removal Cleaner Drive Belt Detail Cleaner Drive Removal Cleaner Drive Detail Fuser Drive Belt Removal Fuser Drive Removal Fuser Drive Detail Paper Feed Drive Belt Removal Paper Feed Drive Belt Detail Replacement Notes Paper Timing Roller Removal Upper Feed Roller Removal Front Detail Cassette Release Cover Lower Feed Roller Removal Upper Pick-Up Roller Removal Upper Pick-Up Roller Drive Removal Upper Pick-up Roller Drive Detail Lower Pick-Up Roller Removal Lower Pick-Up Roller Drive Removal Lower Pick-up Roller Drive Detail Job Offset Assembly Removal Right Side Detail Back Detail Exit Pinch Roller Removal Mounting Screw Fuser Drive Cover Upper Static Brush Removal Upper Static Brush Detail Lower Static Brush Removal Exit Roller Assembly Removal Back Detail Exit Cover Removal Simplex Mounting Screws Fuser Drive Cover Exit Cover Removal Duplex Exit Cover Removal Duplex Paper Exit Sensor Removal Paper Exit Sensor Detail Paper Full Sensor Removal Paper Full Sensor Detail Front Cover Interlock Switch Removal Front Cover Interlock Switch Detail Back Cover Interlock Switch Removal Back Cover Interlock Switch Detail Top Cover Interlock Switch Removal Top Cover Interlock Switch Detail Erase Lamp Removal EP Cover Removal Replacement Note Main Motor Removal Main Motor Detail Main Gear Drive Removal Main Gear Drive Detail Fuser Drive Cover Duplex Control Board #1 Removal Duplex Control Board #1 Detail Duplex Control Board #2 Removal Duplex Tray Registration Motor Removal Registration Motor Detail Duplex Skew Correction Cable Removal Skew Correction Cable Detail Upper Duplex Drive/Clutch Assembly Removal Side Detail Duplex Route Motor/Solenoid Assembly Removal Duplex Route Motor/Solenoid Detail Roller Removal Roller Removal Upper Duplex Roller Cover Clip and Bearing Roller Solenoid Removal Roller Solenoid Detail Duplex Route Separator Removal Clip Location Duplex Paper Path Sensor Removal Paper Path Sensor Underside Detail Options Options Introduction Sheet/2500-Sheet Feeder Sheet/2500-Sheet Component Acronyms Bench Test Procedure Bench Test Procedure Prefeed Adjustment Procedure Slope Assembly Prefeed Adjustment Input Control Board Logic Diagram for 1200-Sheet/2500-Sheet Feeder Connection Sheet Stacker Sheet Stacker Component Acronyms 1400-Sheet Stacker Bench Test Preparation Options Connector Locations Connector Locations front view, cover removed Rear Side View cover removed Output Control Board Logic Stacker Actions and Sensor Inputs 11.Connection Diagram for the 1400-Sheet Stacker Options General Printer Maintenance General Printer Maintenance General Printer Maintenance Introduction Printer/Maintenance Record Tool Requirements Service KitEnd User Cleaning Kit Tools/Supplies History LOG Clean the Fuser Unit Every-Call Cleaning ProcedureClean Internal Areas Remove Major Consumable Supplies Clean the Photoconductor Unit Area Clean the Developer UnitClean the Cleaner Unit/Main Charger Clean the Transfer Charger Adjusting Paper Feed Tension Printers With Paper Tension Levers Printers With Pick Pressure Adjusters Removing the Cassette Release Cover Paper Pick Pressure Adjusters Lubrication Procedure Front View Lubrication Points Front View Lubrication Tables All Printers Front View Lubrication Symbol Part LubricantDuplex Front View Lubrication Symbol Part Lubricant Duplex Only Rear View Lubrication Rear View Lubrication Tables All Printers Rear View Lubrication Symbol Part LubricantDuplex Only Rear Lubrication Symbol Part Lubricant Duplex pinch rollers Drive gears Molycote Tray shaft Red grease Tune-Up Maintenance Procedure Tune-Up Kit Components Introduction Appendix a Abbreviations and Acronyms PC . . . . . . . . . . . .Photoconductor Index Index-2 Index-3 Index-4 Index-5 Index-6 Index-7