Samsung ML-1700 specifications Signs and Measures at Poor toner cartridge, Image

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

7.4.4 Signs and Measures at Poor toner cartridge

 

 

 

 

 

Fault

Signs

Cause & Check

Solution

 

 

 

 

 

 

 

 

 

 

 

Light image and

• The printed image

1. If the image is light or unclean

1. All of 1, 2, 3 above-

 

 

partially blank

is light or unclean

and untidy printed image -

If it become better by shaking,

 

 

image

and untidy.

Shake the developer and

replace with a new developer

 

 

(The life is ended.)

 

then recheck.

after 35.3-100 sheets in the

 

 

 

 

 

 

 

• Some part of the

(1)NG : Check the weight of

closing state of the life span.

 

 

 

 

Digital Printer

 

image is not print-

the developer

 

 

 

 

 

 

ed.

(2)OK : Lack of toner, so the

 

 

 

 

 

Digital Printer

 

 

 

 

 

 

 

 

life is nearly closed.

 

 

 

 

 

Digital Printer

 

 

 

 

 

 

 

 

• Periodically a noise

2. Some part of image is not

2. In case of 2-

 

 

 

 

Digital Printer

 

 

 

 

 

 

as "tick tick" occurs.

printed - Shake the develop-

If it becomes better after clean-

 

 

 

 

Digital Printer

 

 

er and then recheck.

ing the LSU window, then the

 

 

 

 

 

 

 

 

(1)NG : Check the weight of

developer is normal.

 

 

 

 

 

 

 

 

the developer and

(Because of foreign substance

 

 

 

 

 

 

 

 

clean the LSU window

on the LSU window, the image

 

 

 

 

 

 

 

 

with a cotton swab,

has not been printed partly.)

 

 

 

 

 

 

 

 

then recheck.

 

 

 

 

 

 

 

 

 

(2)OK : Lack of toner, so the

 

 

 

 

 

 

 

 

 

life is nearly closed.

 

 

 

 

 

 

 

 

 

3. Periodically a noise as "tick

3. In case of 3-

 

 

 

 

 

 

 

 

tick" occurs - Measure the

If the cycle of noise is about 2

 

 

 

 

 

 

 

 

cycle and the weight of the

seconds, the toner inside the

 

 

 

 

 

 

 

 

developer.

developer has been nearly

 

 

 

 

 

 

 

 

 

exhausted.( Purchase and

 

 

 

 

 

 

 

 

 

replace with a new developer

 

 

 

 

 

 

 

 

 

after using about 200 sheets at

 

 

 

 

 

 

 

 

 

the point of occurrence)

 

 

 

 

 

 

 

 

4. White vertical stripes on the

4. In case of 3-

 

 

 

 

 

 

 

 

whole screen or partly :

This is a phenomenon caused

 

 

 

 

 

 

 

 

Check the weight of the

by lack of toner, so replace with

 

 

 

 

 

 

 

 

developer.

a new developer.

 

 

 

 

 

 

 

 

Toner

• Toner is fallen on

1. Toner is fallen on the paper

1. If both ends of the OPC drum

 

 

Contamination

the papers periodi-

periodically.

are contaminated with toner:

 

 

 

 

 

 

 

cally.

(1)Check the cycle of the

Check the life of the developer.

 

 

 

 

 

 

 

 

falling of the toner.

 

 

 

 

 

 

 

 

• Contaminated with

(2)Check the appearance of

 

 

 

 

 

 

 

 

toner on prints part-

both ends of the developer

 

 

 

 

 

 

 

 

ly or over the whole

OPC drum.

 

 

 

 

 

 

 

 

surface.

 

 

 

 

 

 

 

 

 

 

2.The center of the printed mat-

2. Check whether it could be recy-

 

 

 

 

 

 

 

 

ter is contaminated with toner.

cled.

 

 

 

 

 

 

 

 

(1)Check whether foreign sub-

 

 

 

 

 

 

 

 

 

stances or toner are stuck

 

 

 

 

 

 

 

 

 

to the terminal (contact

 

 

 

 

 

 

 

 

 

point) of the developer.

 

 

 

 

 

 

 

 

 

(2)Check whether the state of

 

 

 

 

 

 

 

 

 

the terminal assembly is

 

 

 

 

 

 

 

 

 

normal.

 

 

 

 

 

 

 

 

 

 

3. If it cannot be recycled:

 

 

 

 

 

 

 

 

 

Replace the developer.

 

 

 

 

 

 

 

 

 

 

7-18

 

 

Service Manual

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Samsung Electronics

 

 

 

 

 

 

 

 

 

Page 82 Page 84
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Page 82 Page 84
Contents Block Diagram PrecautionsSpecifications TroubleshootingElectronics 2003 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 TroubleshootingLSU Acronyms and Abbreviations1 A4 5% Pattern Sample Pattern for the Test2 A4 2% Pattern 3 A4 IDC Pattern Samsung Electronics General Specifications SpecificationsEnvironmental Range Controller SpecificationElectrical Specification Toner Cartridge Developer Paper Handling SpecificationsSpecifications Front View Printer ComponentsInside View Rear ViewControl Panel On Line/Error and Toner Save LEDsPrinting demo Cancel buttonFuser System LayoutFixing PartFuser Feeding PartTransfer Ass’y Driver Ass’yLSU Laser Scanner Unit Safety Relevant FactsToner Cartridge Main Pbaspl Model Sensor input circuit Asic JupiterFlash Memory SdramDC FAN / Solenoid Driving Paper Feeding, Toner Cartridge SensingPaper Exit Sensing Cover Open SensingSdram Regulator Clock Generator Buffer Motor Drive Main PBA PCL ModelML-1710 ML-1510 ML-1750 Memory AsicSPGPmAHB BUS SPGPm Internal Block DiagramSmps & Hvps HVPSHigh Voltage Power Supply Length of Power Cord 1830 ± 50mm Power Switch Use SMPSSwitching Mode Power SupplyRated Power Output Consumption PowerFuser AC Power Control Feeding Engine F/WDrive TransferPID Method FusingHeat Lamp Method 5 LSU What is the Q-PID Method?Whenever servicing the machine, you must perform as follows General Precautions on DisassemblyReleasing Plastic Latches Top Cover FuserHeat Lamp Type FuserFuserQ-PID Type Unplug Thermister Harness from the Fuser cover LSU Exit RollerDriver Ass’y FanMain PBA Engine Shield Ass’ySmps Transfer Roller Feed Roller Pick Up Roller & Solenoid DCU Setup How to use DCUNormal Code Error CodeCode Code Description Self Diagnostic Mode13 THV+ TRIGGER. ALL HV Functi on Enter Up/ Dow n Stop Remar k Self Test ButtonPaper OutFace Up Paper PathPaper Exit Area JAM2 Clearing Paper JamsAround the Toner Cartridge JAM1 Paper Feed Area JAM0Tips for Avoiding Paper Jams Printing a Demo Sample PatternPrinting a cleaning sheet LED Status Display by Each Error Consumables and Replacement PartsRoller Defective image Typical defect Periodic Defective ImageSamsung Electronics Vertical White Line Bad imageVertical Black Line and Band Black/White Spot Horizontal Black BandDark Image or a Black Light ImageBackground Uneven DensityGhost Satins on the Face Blank Page Print out Satins on Back2 JAM Bad dischargeWrong Print Position 4 JAM 3 JAMPaper rolled in the Fuser Multi-FeedingPaper 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 Cover Open No lamp on when the cover is openDefective motor operation No PowerVertical Line Getting Curved Redistributing Toner Toner Cartridge ServicePrecautions on Safe-keeping of Toner Cartridge Service for the Life of Toner CartridgeImage 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 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 Parts List Drive Unit AssemblyCassette Unit Assembly Cassette Unit Assembly Parts List Fuser Unit Assembly Fuser Unit Assembly Parts List Samsung Electronics 9Block Diagram 9.1 PCL Model Motor DR PART’S SPL ModelPCL Model Connection DiagramComputer PCL Main Circuit Diagram 1/7 Schematic DiagramsPCL 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 THV Hvps Circuit Diagram 1/24KV Hvps Circuit Diagram 2/2Smps Circuit Diagram 110V 1/2 CON2-14MANUAL CON2-25EXIT Smps Circuit Diagram 110V 2/2
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