Xerox Phaser 3120 Malfunction, All LEDs blinking Fuser Error, All LEDs blinking Scan Error

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TROUBLESHOOTING

4.4 Malfunction

4.4.1 All LEDs blinking (Fuser Error)

1. All the lamps on the operator panel blink.

• Description 2. Gear of the fuser does not work and breaks away melt away.

When printing, motor breaks away from its place due to defective fuser gear.

 

Check and Cause

 

Solution

1.

Check if the thermostat, AC wire and Heat Lamp is

1.

If the thermostat is open replace the fuser and

 

open.

 

check following items.

2.

Check if the thermistor sensor is in place.

2.

If the thermistor sensor device is located deep in the

 

 

 

sponge, replace the fuser.

3. Check if the heat lamp works properly.

3. Check if the circuit of overheat mode works properly.

4. Check if the overheat circuit works properly.

4. Run DCU mode : Perform DCU diagnostic code 10.

5. The fuser gear is defective due to melting away.

5. Replace Fuser.

4.4.2 All LEDs blinking (Scan Error)

• Description

1. All lamps on the operator panel blink.

 

 

 

 

 

Check and Cause

Solution

 

 

DCU Mode : Perform DCU diagnostic code 05. If the DCU

Replace LSU.

error code 95 is displayed, replace LSU.

 

 

 

If you cannot solve the problem after you replace LSU,

 

 

replace the main board.

 

 

 

Service Manual 4-17

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Contents Laser Printer Precautions Precaution related electric shock or fire Precaution related noxious materialPrecaution when assembly/disassembly Precaution related handling the machineESD Precautions DCUDiagnostic Control Unit Driver Tool for TroubleshootingGeneral Specifications SpecificationsElectrical Specification Controller SpecificationEnvironmental Range Toner Cartridge Developer Paper Handling SpecificationsSpecifications Whenever servicing the machine, you must perform as follows Releasing Plastic LatchesTop Cover Fuser LSU Exit RollerDriver Ass’y FanMain PBA Engine Shield Ass’ySmps Transfer Roller Feed Roller Solenoid Pick Up RollerHow to use DCU 4.1.1 DCU Setup TroubleshootingCode Error CodeNormal Code Code Description Self Diagnostic Mode13 THV+ TRIGGER. ALL HV Functi on Enter Up/ Down Stop Remar k Self Test ButtonVertical Black Line and Band Bad imageVertical White Line Black/White Spot Horizontal Black BandDark Image or a Black Light ImageBackground Uneven DensityGhost Satins on the Face Blank Page Print out Satins on BackWrong Print Position Bad discharge2 JAM 4 JAM 3 JAMPaper rolled in the Fuser Multi-FeedingPaper rolled in the Toner Cartridge OPC Drum All LEDs blinking Scan Error All LEDs blinking Fuser ErrorMalfunction Paper Empty Not function of the gear of the fuser due to melting awayPaper Empty without indication Cover Open No lamp on when the cover is openDefective motor operation No PowerVertical Line Getting Curved Precautions on Safe-keeping of Toner Cartridge Toner Cartridge ServiceService for the Life of Toner Cartridge Redistributing TonerImage Signs and Measures at Poor toner cartridgeFault Signs Cause & Check Solution White Black spot Printer is not working Bad Environment of The SoftwareUtilities program Abnormal Printing How to delete the data in the spool manager Spool ErrorExploded Views and Parts List Main AssemblyExploded view Main Assembly Parts List Frame Assembly Exploded view Frame Assembly Parts List SHAFT-FEED Idle Driver Unit Exploded view Driver Unit Parts ListFuser Unit Exploded view Fuser Unit Parts List Cassette Unit Exploded view Cassette Unit Parts List 3130 DiagramFuser ASS’Y Connection Diagram Computer PhaserSchematic 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