Vertical Line Getting Curved | Samsung ML-2015/XEV specification

Troubleshooting

6.3.10 Vertical Line Getting Curved

• Description	When printing, vertical line gets curved.

	Check and Cause	Solution

1. If the supply of +24v is unstable in the Main Control board		1. Replace LSU.
linking with LSU, check drive by DCU Mode : LSU Check
-05- LSU Motor on.
		2. Replace the Main Control board.

6-12Service Manual

Samsung Electronics

Image 87

Samsung ML-2015/XEV manual Vertical Line Getting Curved

Contents

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