Samsung 2252W - Printer - B/W Specifikace

SERVICELASER PRINTERML-2250 SeriesML-2250/XAA, ML-2251N/XAA, ML-2252W/XAAManualLASER PRINTER CONTENTS1. Precautions2. Reference Information3. Specific

2.3 Select a location for the printer• Leave enough room to open the printer trays, covers, and allow for proper ventilation. (see diagrambelow)• Pr

8.2 Frame Unit Assembly1516721813101112737035891458242543444547394617264247-146-146-247-247-347-447-545-145-245-3404151562552484365253319-119-25076373

8.3 MP Assembly0111824311021215291617131927195-2455-15-3671426142328231302093212525

8.4 Fuser Unit Assembly0131324529293735617361214343837131532301116331918232425282627202136381072289

8.5 RX Driver Unit Assembly012344568795

8.6 Cassette Unit Assembly01234676-46-36-26-1551011915121314816

999-1Samsung ElectronicsB LOCK DIAG R A MService Manual9. Block Diagram-+GND

110010-1Samsung ElectronicsConnection DiagramService Manual10. Connection Diagram36PINHOSTCOMPUTERMainBoard4PINCONN-ECTORforUSB2.0USB CABLETHER1DCU DA

SMPS Signal PIN TableOutput Connector(to Main Board)Pin Name Pin NameNo135791113151719212325No2468101214161820222426Feed Sensor+5.0V+5.0V GND+24V GND+

11-1Samsung ElectronicsSCHEMATIC DIAGRAMSService ManualThis Document can not be used without Samsung’s authorization.1111. Schematic Diagrams11.1 Mai

11-2SCHEMATIC DIAGRAMSSamsung ElectronicsService ManualThis Document can not be used without Samsung’s authorization.Main Circuit Diagram (2/9)

2-5Samsung ElectronicsREFERENCE INFORMATIONTraninung Manual2.4 Sample Tests PatternsThe sample patterns shown below are the standard test patterns use

11-3Samsung ElectronicsSCHEMATIC DIAGRAMSService ManualThis Document can not be used without Samsung’s authorization.Main Circuit Diagram (3/9)

11-4SCHEMATIC DIAGRAMSSamsung ElectronicsService ManualThis Document can not be used without Samsung’s authorization.Main Circuit Diagram (4/9)

11-5Samsung ElectronicsSCHEMATIC DIAGRAMSService ManualThis Document can not be used without Samsung’s authorization.Main Circuit Diagram (5/9)

11-6SCHEMATIC DIAGRAMSSamsung ElectronicsService ManualThis Document can not be used without Samsung’s authorization.Main Circuit Diagram (6/9)

11-7Samsung ElectronicsSCHEMATIC DIAGRAMSService ManualThis Document can not be used without Samsung’s authorization.Main Circuit Diagram (7/9)

11-8SCHEMATIC DIAGRAMSSamsung ElectronicsService ManualThis Document can not be used without Samsung’s authorization.Main Circuit Diagram (8/9)

11-9Samsung ElectronicsSCHEMATIC DIAGRAMSService ManualThis Document can not be used without Samsung’s authorization.Main Circuit Diagram (9/9)

11-10SCHEMATIC DIAGRAMSSamsung ElectronicsService ManualThis Document can not be used without Samsung’s authorization.11.2 HVPS Circuit Diagram (1/2)R

11-11Samsung ElectronicsSCHEMATIC DIAGRAMSService ManualThis Document can not be used without Samsung’s authorization.HVPS Circuit Diagram (2/2)R 4065

11-12SCHEMATIC DIAGRAMSSamsung ElectronicsService ManualThis Document can not be used without Samsung’s authorization.11.3 SMPS Circuit Diagram (1/3)C

2-6REFERENCE INFORMATIONSamsung ElectronicsTraninung Manual2.4.2 A4 2% Pattern

11-13Samsung ElectronicsSCHEMATIC DIAGRAMSService ManualThis Document can not be used without Samsung’s authorization.SMPS Circuit Diagram (2/3)C10150

11-14SCHEMATIC DIAGRAMSSamsung ElectronicsService ManualThis Document can not be used without Samsung’s authorization.SMPS Circuit Diagram (3/3)C10150

© Samsung Electronics Co.,Ltd. May. 2005Printed in Korea.VERSION NO. : 1.01 CODE : JC-0123DThis service manual is also provided on the

2-7Samsung ElectronicsREFERENCE INFORMATIONTraninung Manual2.4.3 A4 ISO 19752 Standard PatternThis test page is reproduced at 70% of the normal A4

2-8REFERENCE INFORMATIONSamsung ElectronicsTraninung Manual2.6 Wireless LAN• This product can be used with a wireless LAN, (this is an option.)- The w

333-1Samsung ElectronicsSpecificationsService ManualItem ML-2250 SeriesML-2250 ML-2251N/ML-2252W3. SpecificationsProduct specifications are subject to

3-2SpecificationsSamsung ElectronicsService ManualItem ML-2250 SeriesML-2250 ML-2251N/ML-2252WPaper InputPaper OutputSensorPick-UpCapacityMedia TypeMe

3-3Samsung ElectronicsSpecificationsService Manual3.2 Controller SpecificationItem ML-2250 SeriesML-2250 ML-2251N/ML-2252WMPUEmulationInterfaceMemoryF

3-4SpecificationsSamsung ElectronicsService Manual3.3 Software SpecificationsItem ML-2250 SeriesML-2250 ML-2251N/ML-2252WOSPrinter DriverDriver Functi

3-5Samsung ElectronicsSpecificationsService Manual3.5 Option SpecificationsItem ML-2250 SeriesML-2250 ML-2251N/ML-2252WSecond CassetteMemoryNetworkPos

111-1PrecautionsService Manual1. PrecautionsIn order to prevent accidents and to prevent damage to the equipment please read the precautions listedbel

3-6SpecificationsSamsung ElectronicsService ManualMEMO

444-1Samsung ElectronicsSummary of productService Manual4. Summary of ProductThis chapter describes the functions and operating principals of the main

4-2Summary of ProductSamsung ElectronicsService Manual4.1.2 Rear ViewRear output tray(Face up) Power receptacleParallel portUSB port

LED Description4-3Samsung ElectronicsSummary of productService Manual4.1.3 Control Panel1) On Line/Error and Toner Save LEDsIf the On Line/Error light

4-4Summary of ProductSamsung ElectronicsService Manual2) Cancel buttonPrinting demo page In Ready mode press and hold this button for about 2 seconds

4-5Samsung ElectronicsSummary of productService Manual4.2 System Construction4.2.1 SummaryThe ML2250 consists of the following main functional compone

4-6Summary of ProductSamsung ElectronicsService Manual4.2.2 System LayoutPICK/RL S UToner CartridgePRFuserEXITSensorOPCCRDRSRTRFR11223634CassetteManua

4-7Samsung ElectronicsSummary of productService Manual4.2.3 Paper FeedThis consists of the standard cassette, an optional cassette, an MP tray for sup

4-8Summary of ProductSamsung ElectronicsService Manual4.2.6 FuserThere are two methods of fusing toner onto the paper: the existing heat lamp process

4-9Samsung ElectronicsSummary of productService Manual4.2.8 Toner CartridgeThe toner cartridge is an integral unit containing the OPC unit and toner u

1-2PrecautionsService Manual1.2 Caution for safety1.2.1 Toxic materialThis product contains toxic materials that could cause illness if ingested.(1) I

4-10Summary of ProductSamsung ElectronicsService Manual4.3 Main PBA(SPL Model)The Engine Board and Controller Board have been integrated into a single

4-11Samsung ElectronicsSummary of productService Manual4.3.1 ASIC (SPGPm)• ARM946ES- 32-bit RISC embedded processor core- 16KB instruction cache and 1

4-12Summary of ProductSamsung ElectronicsService Manual4.3.4 SDRAMUsed as Swath buffer, System working memory area, etc. when printing.• Capacity: 16M

4-13Samsung ElectronicsSummary of productService Manual4.3.5.9 TransferThe charging voltage, developing voltage and the transfer voltage are controlle

4-14Summary of ProductSamsung ElectronicsService Manual4.4 SMPS & HVPSThe SMPS and HVPS are on one integrated board.The SMPS supplies the DC power

4-15Samsung ElectronicsSummary of productService Manual4.4.1 HVPS (High Voltage Power Supply)1) Transfer High Voltage (THV+) - Input Voltage : 24 V DC

4-16Summary of ProductSamsung ElectronicsService Manual4-16SUMMARY OF PRODUCTSamsung ElectronicsTraining Manual4.4.2 SMPS(Switching Mode Power Supply)

4-17Samsung ElectronicsSummary of productService Manual4.5 Engine F/W4.5.1 FeedingIf feeding from the cassette the drive of the pickup roller is contr

4-18Summary of ProductSamsung ElectronicsService ManualMEMO

555-1Samsung ElectronicsDisassembly and ReassemblyService Manual5. Disassembly and Reassembly5.1 General Precautions on DisassemblyWhen you disassembl

1-3PrecautionsService Manual1.2.3 Handling PrecautionsThe following instructions are for your own personal safety, to avoid injury and so as not to da

5-2Disassembly and ReassemblySamsung ElectronicsService Manual1. Pull the Cassette out of the printer.2. Open the Front Cover push the toner cartridge

5-3Samsung ElectronicsDisassembly and ReassemblyService Manual1. Open the Tray Ass’y2. Carefully bend the clear plastic hinge supports( ) to release

5-4Disassembly and ReassemblySamsung ElectronicsService Manual1. Release two screws and remove the OptionCover Ass’y.2. Remove the Cover Face up in th

5-5Samsung ElectronicsDisassembly and ReassemblyService Manual1. Before you remove the Top Cover Ass’y, youshould remove:- Front Cover- Rear Cover2. R

5-6Disassembly and ReassemblySamsung ElectronicsService Manual1. Before you remove the Middle Cover, youshould remove:- Front Cover- Rear Cover- Top C

5-7Samsung ElectronicsDisassembly and ReassemblyService Manual5.8 Exit Roller1. Before you remove the Exit Roller, you shouldremove:- Front Cover- Rea

5-8Disassembly and ReassemblySamsung ElectronicsService Manual1. Before you remove the Engine Shield Ass’y, youshould remove:- Front Cover- Rear Cover

5-9Samsung ElectronicsDisassembly and ReassemblyService Manual5.10 SMPS1. Before you remove the SMPS, you shouldremove:- Front Cover- Rear Cover- Side

5-10Disassembly and ReassemblySamsung ElectronicsService Manual6. Remove seven screw and take out the SMPSUnit.7. If you only need to remove the optio

5-11Samsung ElectronicsDisassembly and ReassemblyService Manual1. Before you remove the Fuser Ass’y, you shouldremove:-Rear Cover2. Unplug the four co

1-4PrecautionsService Manual1.2.5 Disregarding this warning may cause bodily injury(1) Be careful with the high temperature part.The fuser unit works

5-12Disassembly and ReassemblySamsung ElectronicsService Manual6. Unwrap the Themister Harness, as shownbelow.7. Remove the one screws securing the Th

5-13Samsung ElectronicsDisassembly and ReassemblyService Manual1. Before you remove the LSU, you shouldremove:- Front Cover- Rear Cover- Side Cover(RH

5-14Disassembly and ReassemblySamsung ElectronicsService Manual1. Before you remove the Drive Ass’y, you shouldremove:- Front Cover- Rear Cover- Side

5-15Samsung ElectronicsDisassembly and ReassemblyService Manual1. Before you remove the Transfer Ass’y, youshould remove:- Front Cover- Rear Cover- Mi

5-16Disassembly and ReassemblySamsung ElectronicsService Manual1. Before you remove the Feed Ass’y, you shouldremove:- Front Cover- Rear Cover- Middle

5-17Samsung ElectronicsDisassembly and ReassemblyService Manual7. Remove the Feed Gear1, as shown below. 8. Remove the Feed Roller and Feed Roller1, a

5-18Disassembly and ReassemblySamsung ElectronicsService Manual1. Before you remove the Pick-Up Ass’y & Solenoid,you should remove:- Front Cover-

5-19Samsung ElectronicsDisassembly and ReassemblyService Manual6. It is a simple matter to replace the MP PickupRoller and the main cassette Pickup Ro

5-20Disassembly and ReassemblySamsung ElectronicsService ManualMEMO

666-1Samsung ElectronicsAlignment & AdjustmentsService Manual6. Alignment and AdjustmentsThis chapter describes some of the main service procedure

1-5PrecautionsService Manual1.3 ESD PrecautionsCertain semiconductor devices can be easily damaged by static electricity. Such components are commonly

6-2Alignment & AdjustmentsSamsung ElectronicsServiceManual6.1.2 CodeThe DCU can be used in 2 modes – Status Monitoring and Self Diagnostic.To use

6-3Samsung ElectronicsAlignment & AdjustmentsService Manual6.1.3 Self Diagnostic ModeIf Error code is displayed use the Self Diagnostic Mode to as

6-4Alignment & AdjustmentsSamsung ElectronicsServiceManualCode Description07 Paper Empty Sensor Test :The ‘ON’ LED indicates the status of the mai

6-5Samsung ElectronicsAlignment & AdjustmentsService ManualNo. Function Enter LED Stop Remark00MotorMotor Run Motor Stop01MHVMhv On Mhv Off -1550V

6-6Alignment & AdjustmentsSamsung ElectronicsServiceManual6.2 Paper PathPICK/RL S UToner CartridgePRFuserEXITSensorOPCCRDRSRTRFR11223634CassetteMa

6-7Samsung ElectronicsAlignment & AdjustmentsService Manual6.3 Clearing Paper JamsOccasionally, paper can be jammed during a print job. Some of ca

6-8Alignment & AdjustmentsSamsung ElectronicsServiceManual6.3.2 In the Paper Feed Area1) Open the front cover and remove the toner cartridge 2) Ge

6-9Samsung ElectronicsAlignment & AdjustmentsService Manual6.3.4 Tips for Avoiding Paper JamsBy selecting the correct paper types, most paper jams

6-10Alignment & AdjustmentsSamsung ElectronicsServiceManual6.4 Sample PatternThis product has the several sample patterns for maintenance. With t

6-11Samsung ElectronicsAlignment & AdjustmentsService Manual2) The Demo page or the configuration sheet shows the printer’s current configuration.

222-1Samsung ElectronicsREFERENCE INFORMATIONTraninung Manual2. Reference InformationThis chapter contains the tools list, list of abbreviations used

6-12Alignment & AdjustmentsSamsung ElectronicsServiceManual6.4.2 Printing a cleaning sheet If you are experiencing blurred, faded or smeared print

6-13Samsung ElectronicsALIGNMENT & ADJUSTMENTSService ManualCOMPONENT REPLACEMENT CYCLETransfer Roller 60,000 PagesFuser 80,000 PagesToner Cartrid

6-14Alignment & AdjustmentsSamsung ElectronicsServiceManual6.7 Periodic Defective ImageIf a mark or other printing defect occurs at regular interv

777-1Samsung ElectronicsTroubleshootingService Manual7. Troubleshooting7.1 Bad image 7.1.1 Vertical Black Line and Band • Description1. Straight thin

7-2TroubleshootingSamsung ElectronicsService Manual7.1.3 Horizontal Black Band• Description1. Dark or blurry horizontal stripes occur in the printing

7-3Samsung ElectronicsTroubleshootingService Manual7.1.5 Light Image• Description The printed image is light, with no ghost.Digital PrinterDigital Pr

7-4TroubleshootingSamsung ElectronicsService Manual7.1.7 Uneven Density• Description Print density is uneven between left and right.Check and Cause S

7-5Samsung ElectronicsTroubleshootingService Manual7.1.9 Ghost (1) • Description Ghost occurs at 75.5 mm intervals of the OPC drum in the whole print

7-6TroubleshootingSamsung ElectronicsService Manual7.1.11 Ghost (3) • Description Ghost occurs at 75.5mm or 78mm intervals.Digital PrinterDigital Prin

7-7Samsung ElectronicsTroubleshootingService Manual7.1.14 Stains on Back of Page • Description The back of the page is stained at 47 mm intervals.Digi

2-2REFERENCE INFORMATIONSamsung ElectronicsTraninung Manual2.2 Acronyms and AbbreviationsThe table below explains the abbreviations and acronyms used

7-8TroubleshootingSamsung ElectronicsService Manual7.2.1 Wrong Print Position• Description Printing begins at wrong position on the paper.Check and C

7-9Samsung ElectronicsTroubleshootingService ManualCheck and Cause Solution1. If the recording paper is jammed in front of or insidethe fuser. 2. If t

7-10TroubleshootingSamsung ElectronicsService Manual7.2.5 Multi-Feeding • Description Multiple sheets of paper are fed at once.Check and Cause Soluti

7-11Samsung ElectronicsTroubleshootingService Manual7.2.7 Paper rolled on the OPC Drum• Description Paper is rolled up in the OPC.Check and Cause Sol

7-12TroubleshootingSamsung ElectronicsService Manual7.3 Printer Faults – Causes and Solutions7.3.1 All LEDs blinking (Fuser Error)• Description1. All

7-13Samsung ElectronicsTroubleshootingService Manual7.3.3 Fuser gear melts due to overheating causing Paper Jam.• DescriptionConstant Jam where paper

7-14TroubleshootingSamsung ElectronicsService Manual7.3.5 Paper Empty without indication• DescriptionThe paper empty lamp does not light when the pap

7-15Samsung ElectronicsTroubleshootingService Manual7.3.7 No ERROR lamp when the cover is open• DescriptionThe ERROR lamp does not light even when th

7-16TroubleshootingSamsung ElectronicsService Manual7.3.8 Defective motor operation• DescriptionMain motor is faulty and paper does not feed into the

7-17Samsung ElectronicsTroubleshootingService Manual7.3.10 Printed Vertical Lines become curved• DescriptionWhen printing, vertical lines are not str

2-3Samsung ElectronicsREFERENCE INFORMATIONTraninung ManualLBP Laser Beam PrinterLCD Liquid Crystal DisplayLED Light Emitting DiodeLSU Laser Scanning

7-18TroubleshootingSamsung ElectronicsService Manual7.4 Toner Cartridge ServiceIt is not guaranteed for the default caused by using other toner cartri

7-19Samsung ElectronicsTroubleshootingService Manual7.4.4 Signs and Measures at Poor toner cartridgeFault Signs Cause & Check SolutionLight imag

7-20TroubleshootingSamsung ElectronicsService ManualFault Signs Cause & Check SolutionWhite Black spotRecycled product• Light or dark blackdots

7-21Samsung ElectronicsTroubleshootingService ManualFault Signs Cause & Check SolutionGhost & ImageContamination• The printed imageis too li

7-22TroubleshootingSamsung ElectronicsService Manual7.5 Software Problems – Causes and Solutions7.5.1 The printer is not working (1) • DescriptionWhi

7-23Samsung ElectronicsTroubleshootingService Manual7.5.2 The printer is not working (2) • DescriptionAfter receiving the print command there is no r

7-24TroubleshootingSamsung ElectronicsService Manual7.5.3 Abnormal Printing• DescriptionPrinting does not work – even after replacing the cablePrinte

7-25Samsung ElectronicsTroubleshootingService Manual7.5.4 SPOOL Error• DescriptionSPOOL (simultaneous peripheral operations online) is the process Wi

8. Exploded Views and Parts List (Basic Model)8-1. Main Assembly8-2. Frame Assembly8-3. MP Assembly 8-4. Fuser Unit Assembly 8-5. RX Driver Unit Asse

8.1 Main Assembly0Toner Cartridge366-46-76-86-96-106-52SCF(Optopm Cassette Unit)717221692014(ML-2251N only)1511108518196-106-66-16-26-116-37-35-15-25-