Muratec F-114P service manual Horizontal Black Bands

Page 88

Adjustment and Troubleshooting

3) Horizontal Black Bands

Description: Dark or blurry horizontal stripes occur in the printing periodically (These may occurs at regular intervals down the page.)

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

1.Bad contacts on the toner cartridge high voltage terminals.

2.The rollers in the toner cartridge may be contaminated.

1)Charge roller = 37.7 mm

2)Supply roller = 37 mm

3)Develop roller = 35.3 mm

4)Transfer roller = 45.3 mm

Clean all HV terminals on the cartridge and on the set frame. Ensure all toner or paper dust particles are removed.

1.Clean the right Gear that has relatively small tooth gap on the OPC.

2.If the problem persists replace the toner cartridge.

4-28Service Manual

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Contents 114 / F-114P Page Contents Alignment & Troubleshooting Exploded Views & Parts Lists Page Precautions Safety WarningElectric Shock and Fire Safety Precautions Toxic materialHandling Precautions Assembly / Disassembly PrecautionsBe careful with the high temperature part Disregarding this warning may cause bodily injuryESD Precautions Page Product specification and feature Product SpecificationsFcot Items 114Series SPL Twain Printer Components Summary of ProductFront View Items 114Series Control Panel Product spec and feature Overview of System Smps Board & Hvps Board System Layout Feeding sectionTransfer Ass’y Driver Ass’y3.4e Safety Features Scan Image ControllerCIS Driver Circuit Tx Driver CircuitLSU Laser Scanner Unit Toner Cartridge Main Pbaspl Model Asic Chorus2 Flash MemorySdram Main function blockSensor input circuit Smps & Hvps HVPSHigh Voltage Power Supply Smps Switching Mode Power Supply Rated Power OutputConsumption Power Length of Power Cord 1830 ± 50mm Power Switch FittedFuser AC Power Control Engine F/W FeedingDrive TransferFusing Error TypeOPE PBA 6.5 LSUPage Releasing Plastic Latches General Precautions on DisassemblyWhenever servicing the machine, you must perform as follows White Roller Ass,y Rear CoverSide Cover L Side Cover ROPE Unit Remove the seven screws securing the OPE PBA and remove it ADF Rubber Pad CIS Exit RollerFront Cover Assy Scan Assy Scan Motor Assy ADF Roller Sub Hook PBA Drive Assy DC-FanExit Cover Assy LSU-Unit Engine Shield AssyMain PBA Unplug one connector SmpsFuser Assy Unwrap the Thermister Harness, as shown below Transfer Assy Feed Assy Remove the Feed Gear1 Assy Pick up Assy SolenoidPage Alignment and Adjustments Paper pathADF Part Copy & Scan Document PathPrinter Paper Path Engine PartPaper Jam1 Clearing Paper JamsBypass Jam Clearing Document Jams 2.1a Input Misfeed2.1b Exit Misfeed Clearing Paper Jams Message Location of JamAlignment & Troubleshooting Paper Exit Area Fuser Area or Around the Toner Cartridge Bypass Tray Tips for Avoiding Paper JamsPaper Setting Copy Setup Fax Setup Reports Advanced Fax Fax FeatureSound/Volume Machine Setup Maintenance User ModeSF-565PRTech Mode How to Enter Tech ModeTo enter the Tech mode Tech Mode settings mapData Setup MethodFlash Upgrade Switch Test Machine TestReport Protocol ListTo enter the Engine Test Mode To enter the Engine Test mode Engine Test ModeDiagnostic Identify Sale Date Consumables and Replacement Parts Component Replacement CycleAbnormal Image Printing and Defective Roller Roller Abnormal image period Kind of abnormal imageError Messages Line Error Low Heat ErrorOpen Heat Error LSU ErrorNO. Not Assigned No PaperAdd PaperOperation NotAssigned Paper Jam 0Open/Close DoorTroubleshooting Procedure of Checkig the SymptomsCause and solution of image quality Vertical Black Line and BandVertical White Line Horizontal Black Bands Black/White Spot Light Image Digital PrinterDark 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 Stains on Back Digital Digital Pri Digital PrinterBlank Page Print out Blank Page Print out Fax & Phone Problems No Dial ToneDefective MF Dial Defective FAX FORWARD/RECEIVE Defective FAX Forward Defective FAX Receive Defective FAX Receive Defective FAX Receive Defective FAX Receive FAX Mode Defective Automatic ReceivingCopy Problems White CopyBlack Copy Abnormal noise Defective Image Quality Paper Feed problems Causes and Solutions Wrong Print PositionJAM PTL Feed JAM Toner Cartridge Multi-Feeding Paper rolled in the fuser Paper rolled on the OPC Drum Printer Faults Causes and Solutions Fuser ErrorLSU 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 Toner Cartridge Service Precautions on Safe-keeping of Toner CartridgeService for the Life of Toner Cartridge 6.2a Redistributing TonerStandard of guarantee for consumable parts Error messages in the LCD window related to tonerSigns and Measures of Poor toner cartridge EndedFault Signs Cause & Check Solution Fault Signs Cause & Check Solution Ghost & Image Software Problems Causes and Solutions Printer is not workingAbnormal 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 Service Main Frame Exploded ViewFuser Unit Exploded View Exit Cover Exploded View Cassette Unit Exploded View Page System Diagram Connection Diagram Tool for Troubleshooting DVMDigital Volt MeterAcronyms and Abbreviations HvpsLCD Select a location for the printer Sample Tests Patterns A4 ISO 19752 Standard PatternsPage Page Muratec America, Inc
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