Xerox Phaser 3120 specifications Tool for Troubleshooting, DCUDiagnostic Control Unit Driver

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Precautions

1.4 Tool for Troubleshooting

The following tools are recommended for safe and smooth troubleshooting described in this service manual.

1 DCU(Diagnostic Control Unit)	4 Driver
Standard : Test equipment to diagnose the Laser	Standard : "-" type, "+" type (M3 long, M3 short, M2 long,
printer supplied by Samsung Electronics.	M2 short).

5 Pinset

Standard : For general home use, small type.

2 DVM(Digital Volt Meter)	6 Cotton Swab
Standard : Indicates more than 3 digits.	Standard : For general home use, for medical ser-vice

7 Cleaning Equipments a IPA(Isopropyl Alcohol)dry cloth or a soft stuff neutral detergent

3 Electronic Scale

8 Software(Driver) installation CD ROM

Standard : Equipment to check the weight of con- sumables(toner cartridge) supplied by Samsung Electronics. (The gram unit can be measured.)

Mind your hands not to be touched when you disassemble and reassemble PBA ASS'Y, such as the main board, SMPS, HVPS.

Service Manual

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Contents Laser Printer Precautions Precaution related noxious material Precaution related electric shock or firePrecaution related handling the machine Precaution when assembly/disassemblyESD Precautions Tool for Troubleshooting DCUDiagnostic Control Unit DriverSpecifications General SpecificationsController Specification Electrical SpecificationEnvironmental Range Paper Handling Specifications Toner Cartridge DeveloperSpecifications Releasing Plastic Latches Whenever servicing the machine, you must perform as followsTop Cover Fuser Exit Roller LSUFan Driver Ass’yEngine Shield Ass’y Main PBASmps Transfer Roller Feed Roller Pick Up Roller SolenoidTroubleshooting How to use DCU 4.1.1 DCU SetupError Code CodeNormal Code Self Diagnostic Mode Code Description13 THV+ TRIGGER. ALL HV Self Test Button Functi on Enter Up/ Down Stop Remar kBad image Vertical Black Line and BandVertical White Line Horizontal Black Band Black/White SpotLight Image Dark Image or a BlackUneven Density BackgroundGhost Satins on the Face Satins on Back Blank Page Print outBad discharge Wrong Print Position2 JAM 3 JAM 4 JAMMulti-Feeding Paper rolled in the FuserPaper 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 No lamp on when the cover is open Cover OpenNo Power Defective motor operationVertical Line Getting Curved Service for the Life of Toner Cartridge Toner Cartridge ServicePrecautions on Safe-keeping of Toner Cartridge Redistributing TonerSigns and Measures at Poor toner cartridge ImageFault Signs Cause & Check Solution White Black spot Bad Environment of The Software Printer is not workingUtilities program Abnormal Printing Spool Error How to delete the data in the spool managerExploded Views and Parts List Assembly MainExploded view Main Assembly Parts List Frame Assembly Exploded view Frame Assembly Parts List SHAFT-FEED Idle Driver Unit Parts List Driver Unit Exploded viewFuser Unit Exploded view Fuser Unit Parts List Cassette Unit Exploded view Cassette Unit Parts List Diagram 3130Fuser ASS’Y Connection Diagram Phaser ComputerSchematic Diagrams Phaser 3130 Main Circuit Diagram 2/9 Phaser 3130 Main Circuit Diagram 3/9 Phaser 3130 Main Circuit Diagram 4/9 Phaser 3130 Main Circuit Diagram 5/9 Phaser 3130 Main Circuit Diagram 6/9 Phaser 3130 Main Circuit Diagram 7/9 Phaser 3130 Main Circuit Diagram 8/9 Phaser 3130 Main Circuit Diagram 9/9 Phaser 3120 Main Circuit Diagram 1/5 Phaser 3120 Main Circuit Diagram 2/5 Phaser 3120 Main Circuit Diagram 3/5 Phaser 3120 Main Circuit Diagram 4/5 Phaser 3120 Main Circuit Diagram 5/5 Hvps Circuit Diagram 1/2 Hvps Circuit Diagram 2/2 Smps Circuit Diagram Other PBA Circuit Diagrams