Periodic Defective Image | Samsung ML-2015/XEV manual

Alignment and Adjustments

4.5 Periodic Defective Image

If the delinquent image regularly occurs in the printed-paper, it is due to delinquent or damaged roller. Refer to the table in below and check the condition of the roller.

No	Roller	Defective image	Typical defect
1	OPC Drum	75.5mm	white spot on black image or black spot

2	Charge Roller	37.7mm	black spot

3	Supply Roller	47.5mm	light or dark horizontal image band

4	Developing Roller	35.2mm	horizontal image band

5	Transfer Roller	46.2mm	image ghost

6	Heat Roller	63.9mm	Black spot and image ghost

7	Pressure Roller	75.4mm	black spot on the backside

BIN PATH

1	OPC Drum	5
2	Charge Roller	6
3	Supply Roller	7

4Developing Roller

Transfer Roller

Heat Roller

Pressure Roller

	Service Manual	4-5
Samsung Electronics		4-5
Samsung Electronics

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Samsung ML-2015/XEV manual Periodic Defective Image, Roller Defective image Typical defect

Contents

Laser Printer Version no .00 Code JC-0141I Contents Exploded Views & Parts List Disassembly and ReassemblyTroubleshooting Block diagram Reference Information Circuit Description Precautions Safety Warning Electric Shock or fire Precaution Safety CautionNoxious Material Precaution Handling Precautions Assembly/Disassembly precaution ESD Precautions Product Overview SpecificationsGeneral Specifications Product Specifications Descriptions Controller Toner Cartridge Electrical SpecificationEnvironmental Range Paper Handling Specifications Input Paper Size Model Comparison Table ML-1610 Series ML-2010 Series Remark System Overview System Outline Hvps Smps Driver Ass’y FeedingTransfer Ass’y Fuser System Overview LSU Laser Scanner Unit Cleaning Blade H/W Structure and Descriptions 1 H/W Overview Flash Memory Main Board 12.0MHz Sdram AsicSPGPm Specification USB interface TimerInterrupt Controller Intc Serial port interface Uart Jupiter4E Internal Block Diagram Sensor Controller Paper Feeding/Width Smps board Switching Module Power Supply Pin Signal Smps Specification CH1 CH2 Charge Voltage MHV Hvps board High Voltage Power SupplyTransfer High Voltage THV+ Developing Voltage DEV Supply Fuser AC Power Control Engine Control F/W Overview S/W Structure and DescriptionsIntroduction Fan Unit Motors Solenold Clutch Engine Sensing & Unit Control Module Design 3 F/W Architecture of Engine Control FirmwareEngine Interface Module Design Start Error LED Operation LED Behaviors Installing the Toner Cartridge Initial Product InstallationAccessory List System Overview Samsung Electronics Loading Paper You can load approximately 150 sheets of paper in the tray Connecting a Printer Cable Turning the Printer on Printing a Demo If you are printing in Linux Installing Printer SoftwareIf you are printing from Windows System Requirements Alignment and Adjustments Sample Pattern OP Panel On Line/Error and Toner Save LEDs Control Panel Cancel button Consumables and Replacement Parts LED Status Error Message Periodic Defective Image Roller Defective image Typical defect How to use DCU DCU Setup Code Normal Code Self Diagnostic Mode 13 THV+ TRIGGER. ALL HV Self Test Button Functi on Enter Up/ Down Stop Remar k Paper Path Clearing Paper Jams Paper Exit Area Samsung Electronics Paper Feed Area Around the Toner Cartridge Samsung Electronics Tips for Avoiding Paper Jams Solving Print Quality ProblemsPrint Quality Checklist Disassembly and Reassembly Disassembly and Reassembly Front Cover MP Tray Cassette Tray Smps Cover Main Cover Top Cover Hvps RX Drive Thermister Thermo Cap Engine Shield Including Main PBA and Smps For removing only SMPS, perform the follows in order 11 LSU Paper Path Frame PickUp Roller Troubleshooting Checking Symptoms Basic Check List Initial Inspection Check Power partCheck the Installation Environment Check paper type Wrong Print Position Check and Cause SolutionBad discharge 2 JAM 3 JAM 4 JAM Multi-Feeding Paper rolled in the Toner Cartridge OPC Drum Malfunction All LEDs blinking Fuser ErrorAll LEDs blinking Scan Error Paper Empty without indication Not function of the gear of the fuser due to melting awayPaper Empty No lamp on when the cover is open Cover Open No Power Defective motor operation Vertical Line Getting Curved Bad Software Environment Printer is not working Utilities program Abnormal Printing Spool Error How to delete the data in the spool manager Vertical White Line Bad imageVertical Black Line and Band Horizontal Black Band Black/White Spot Light Image Dark Image or a Black Uneven Density Background Ghost Stains on the Face Description Digital Printer Stains on Back Blank Page Print out Exploded Views and Parts List ML-2010/XEV Main Assembly Assembly Fuser Unit Paper Path Unit MP Tray Assembly Basic Parts List ML-2010/XEV Paper Path Assembly MP Tray Assembly FELT-FRAME Noise LML-2010,POLYESTER RAY SNA IC ASIC-JUPITER4ES4FD004X,ML-1520,160P MEC-BUSHING AGI LSF-5100,SEC,POM+SANTOP SNA JUPITER4e +24V ML-201520ppm GDI P1284 H/W Block Diagram+5V Diagram Schematic Diagrams Main Board2/5 Main Board3/5 Main Board4/5 Main Board5/5 Connector Circuit Diagram Smps Circuit Diagram Hvps Circuit Diagram1/3 Hvps Circuit Diagram2/3 Hvps Circuit Diagram3/3 Troubleshooting Tool Acronyms and Abbreviations1 Abbreviations Explanation Acronyms and Abbreviations2 SPL Selecting printer locations Sample Tests Patterns A4 ISO 19752 Standard Patterns 12.1 Engine Controller Heater Control Circuit Description PWM Controller Motor Driver LSU Controller APB Bridge PVC Lsuc ADC Controller Name Direction Description