Samsung ML-1700 specifications Light Image, Dark Image or a Black

Page 68

T RO U B L E S H O OT I N G

7.1.5 Light Image

• Description

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

The printed image is light, with no ghost.

Check and Cause

 

Solution

 

 

1. Develop roller is stained when the toner

1. Check if the Toner Save mode is off.

of developer cartridge is almost con-

 

 

sumed.

 

 

2. Ambient temperature is below than 10°C.

2.

Replace the developer cartridge and try to

 

 

print out.

3. Bad contact caused by the toner stains

3.

Wait 30 minutes after printer is powered on

between the high voltage terminal in the

 

before you start printing.

HVPS and the one in the set.

 

 

4. Abnormal output from the HVPS.

4. Clean up the contaminated area by the

 

 

toner.

 

5.

Replace the HVPS if the problems are not

 

 

solved by the above four directions.

 

 

 

7.1.6 Dark Image or a Black

• Description

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

The printed image is dark.

 

Check and Cause

 

Solution

 

 

 

1.

No charge voltage in the engine board.

1. Clean the high voltage charge terminal.

 

( Perform DCU diagnostic code 01)

 

 

2.

Charge voltage is not turned on due to

2.

Check the state of the connector which

 

the bad contacts between power supply

 

connects the engine board and HVPS.

 

in the side of the Developer and charge

 

 

 

terminal of HVPS.

 

 

 

 

3.

Replace the HVPS if not solved by the

 

 

 

above direction 1 and 2.

 

 

 

 

Service Manual

Samsung Electronics

7-3

Page 67 Page 69
Image 68
Page 67 Page 69
Contents Precautions SpecificationsTroubleshooting Block DiagramElectronics 2003 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 DriverAcronyms and Abbreviations LSUSample Pattern for the Test 1 A4 5% Pattern2 A4 2% Pattern 3 A4 IDC Pattern Samsung Electronics Specifications General SpecificationsEnvironmental Range Controller SpecificationElectrical Specification Paper Handling Specifications Toner Cartridge DeveloperSpecifications Printer Components Front ViewRear View Inside ViewOn Line/Error and Toner Save LEDs Control PanelCancel button Printing demoSystem Layout FuserFeeding Part Transfer Ass’yDriver Ass’y Fixing PartFuserSafety Relevant Facts LSU Laser Scanner UnitToner Cartridge Main Pbaspl Model Asic Jupiter Flash MemorySdram Sensor input circuitPaper Feeding, Toner Cartridge Sensing Paper Exit SensingCover Open Sensing DC FAN / Solenoid DrivingMain PBA PCL Model Sdram Regulator Clock Generator Buffer Motor DriveML-1710 ML-1510 ML-1750 AsicSPGPm MemorySPGPm Internal Block Diagram AHB BUSSmps & Hvps HVPSHigh Voltage Power Supply SMPSSwitching Mode Power Supply Rated Power OutputConsumption Power Length of Power Cord 1830 ± 50mm Power Switch UseFuser AC Power Control Engine F/W DriveTransfer FeedingPID Method FusingHeat Lamp Method What is the Q-PID Method? 5 LSUWhenever servicing the machine, you must perform as follows General Precautions on DisassemblyReleasing Plastic Latches Top Cover Fuser FuserHeat Lamp TypeFuserQ-PID Type Unplug Thermister Harness from the Fuser cover Exit Roller LSUFan Driver Ass’yEngine Shield Ass’y Main PBASmps Transfer Roller Feed Roller Pick Up Roller & Solenoid How to use DCU DCU SetupNormal Code Error CodeCode Self Diagnostic Mode Code Description13 THV+ TRIGGER. ALL HV Self Test Button Functi on Enter Up/ Dow n Stop Remar kPaper Path Paper OutFace UpClearing Paper Jams Paper Exit Area JAM2Paper Feed Area JAM0 Around the Toner Cartridge JAM1Tips for Avoiding Paper Jams Sample Pattern Printing a DemoPrinting a cleaning sheet Consumables and Replacement Parts LED Status Display by Each ErrorPeriodic Defective Image Roller Defective image Typical defectSamsung Electronics Vertical White Line Bad imageVertical Black Line and Band Horizontal Black Band Black/White SpotLight Image Dark Image or a BlackUneven Density BackgroundGhost Satins on the Face Satins on Back Blank Page Print out2 JAM Bad dischargeWrong Print Position 3 JAM 4 JAMMulti-Feeding Paper rolled in the FuserPaper 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 OpenNo Power Defective motor operationVertical Line Getting Curved Toner Cartridge Service Precautions on Safe-keeping of Toner CartridgeService for the Life 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 11-1 11-2 11-3 Main Assembly Parts List Unit Assembly Frame Unit Assembly Parts List Frame Unit Assembly Parts ListCont Drive Unit Assembly Drive Unit Assembly Parts ListCassette Unit Assembly Cassette Unit Assembly Parts List Fuser Unit Assembly Fuser Unit Assembly Parts List Samsung Electronics 9Block Diagram 9.1 PCL Model SPL Model Motor DR PART’SConnection Diagram PCL ModelComputer Schematic Diagrams PCL Main Circuit Diagram 1/7PCL Main Circuit Diagram 2/7 PCL Main Circuit Diagram 3/7 PCL Main Circuit Diagram 4/7 PCL Main Circuit Diagram 5/7 PCL Main Circuit Diagram 6/7 PCL Main Circuit Diagram 7/7 SPL Main Circuit Diagram 1/5 SPL Main Circuit Diagram 2/5 SPL Main Circuit Diagram 3/5 SPL Main Circuit Diagram 4/5 SPL Main Circuit Diagram 5/5 Hvps Circuit Diagram 1/2 THVHvps Circuit Diagram 2/2 4KVSmps Circuit Diagram 110V 1/2 Smps Circuit Diagram 110V 2/2 CON2-14MANUAL CON2-25EXIT
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