Muratec F-114P service manual Copy Problems, White Copy

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Adjustment and Troubleshooting

4.2.3 Copy Problems

1) White Copy

Description: Blank page is printed out when copying.

1.Check the Scanner Cover is properly closed.

2.Check shading profile.

3.Check white/black reference voltage on Main PBA. e.q

•CIS_SI, CIS_CLK at Chip(U28)

Room light can pass through a thin original.

Redo shading profile in the tech mode.

Replace CN8 if it is defective.

•U28-Pin6 (CIS_SI)

•U28-Pin8 (CIS_CLK)

Service Manual 4-51

Image 111

Contents 114 / F-114P Page Contents Alignment & Troubleshooting Exploded Views & Parts Lists Page Safety Warning PrecautionsToxic material Electric Shock and Fire Safety PrecautionsAssembly / Disassembly Precautions Handling PrecautionsDisregarding this warning may cause bodily injury Be careful with the high temperature partESD Precautions Page Product Specifications Product specification and featureFcot Items 114Series SPL Twain Summary of Product Printer ComponentsFront View Items 114Series Control Panel Product spec and feature Overview of System Smps Board & Hvps Board Driver Ass’y System LayoutFeeding section Transfer Ass’yTx Driver Circuit 3.4e Safety FeaturesScan Image Controller CIS Driver CircuitLSU Laser Scanner Unit Toner Cartridge Main Pbaspl Model Main function block Asic Chorus2Flash Memory SdramSensor input circuit Smps & Hvps HVPSHigh Voltage Power Supply Length of Power Cord 1830 ± 50mm Power Switch Fitted Smps Switching Mode Power SupplyRated Power Output Consumption PowerFuser AC Power Control Transfer Engine F/WFeeding Drive6.5 LSU FusingError Type OPE PBAPage General Precautions on Disassembly Releasing Plastic LatchesWhenever servicing the machine, you must perform as follows Rear Cover White Roller Ass,ySide Cover R Side Cover LOPE Unit Remove the seven screws securing the OPE PBA and remove it ADF Rubber Pad Exit Roller CISFront Cover Assy Scan Assy Scan Motor Assy ADF Roller Sub Hook PBA DC-Fan Drive AssyExit Cover Assy Engine Shield Assy LSU-UnitMain PBA Smps Unplug one connectorFuser Assy Unwrap the Thermister Harness, as shown below Transfer Assy Feed Assy Remove the Feed Gear1 Assy Solenoid Pick up AssyPage Paper path Alignment and AdjustmentsCopy & Scan Document Path ADF PartEngine Part Printer Paper PathClearing Paper Jams Paper Jam1Bypass Jam 2.1a Input Misfeed Clearing Document Jams2.1b Exit Misfeed Message Location of Jam Clearing Paper JamsAlignment & Troubleshooting Paper Exit Area Fuser Area or Around the Toner Cartridge Tips for Avoiding Paper Jams Bypass TrayUser ModeSF-565PR Paper Setting Copy Setup Fax SetupReports Advanced Fax Fax Feature Sound/Volume Machine Setup MaintenanceTech Mode settings map Tech ModeHow to Enter Tech Mode To enter the Tech modeMethod Data SetupFlash Upgrade Machine Test Switch TestProtocol List ReportEngine Test Mode To enter the Engine Test Mode To enter the Engine Test modeDiagnostic Identify Sale Date Component Replacement Cycle Consumables and Replacement PartsRoller Abnormal image period Kind of abnormal image Abnormal Image Printing and Defective RollerError Messages LSU Error Line ErrorLow Heat Error Open Heat ErrorPaper Jam 0Open/Close Door NO. Not AssignedNo PaperAdd Paper Operation NotAssignedProcedure of Checkig the Symptoms TroubleshootingVertical Black Line and Band Cause and solution of image qualityVertical White Line Horizontal Black Bands Black/White Spot Digital Printer Light ImageDark image or Black Uneven Density Background Ghost1 Ghost Description Ghost occurs at 66.3 or 75.5 mm intervals Digital Printer Stains on the Face Digital Digital Pri Digital Printer Stains on BackBlank Page Print out Blank Page Print out No Dial Tone Fax & Phone ProblemsDefective MF Dial Defective FAX FORWARD/RECEIVE Defective FAX Forward Defective FAX Receive Defective FAX Receive Defective FAX Receive Defective FAX Receive Defective Automatic Receiving FAX ModeWhite Copy Copy ProblemsBlack Copy Abnormal noise Defective Image Quality Wrong Print Position Paper Feed problems Causes and SolutionsJAM PTL Feed JAM Toner Cartridge Multi-Feeding Paper rolled in the fuser Paper rolled on the OPC Drum Fuser Error Printer Faults Causes and SolutionsLSU Error Fuser gear melts due to overheating causing Paper Jam Paper Empty Paper Empty without indication Cover Open No error message when the cover is open Defective motor operation No Power Printed Vertical Lines become curved 6.2a Redistributing Toner Toner Cartridge ServicePrecautions on Safe-keeping of Toner Cartridge Service for the Life of Toner CartridgeError messages in the LCD window related to toner Standard of guarantee for consumable partsEnded Signs and Measures of Poor toner cartridgeFault Signs Cause & Check Solution Fault Signs Cause & Check Solution Ghost & Image Printer is not working Software Problems Causes and SolutionsAbnormal Printing Spool Error How to delete the data in the spool manager Page Contents View Top Cover Exploded View OPE Ass’y Exploded View Scan Upper Ass’y Exploded View Main Frame Exploded View ServiceFuser Unit Exploded View Exit Cover Exploded View Cassette Unit Exploded View Page System Diagram Connection Diagram DVMDigital Volt Meter Tool for TroubleshootingHvps Acronyms and AbbreviationsLCD Select a location for the printer A4 ISO 19752 Standard Patterns Sample Tests PatternsPage Page Muratec America, Inc

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