Samsung ML-451 Series Service Manual

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SERVICE
Mono Laser Printer
Refer to the service manual in the GSPN (see the rear cover) for more information.
Mono Laser Printer
ML-451x / 501x series
ML-451xND/ ML-501xND
(Ver 1.01)
MANUAL
1. Precautions
2. Product Specifications and Description
3. Disassembly and Reassembly
4. Alignment and Troubleshooting
5. System Diagrams
6. Reference Information
Contents

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Summary of Contents for Samsung ML-451 Series

  • Page 1 Mono Laser Printer ML-451x / 501x series ML-451xND/ ML-501xND (Ver 1.01) SERVICE MANUAL Mono Laser Printer Contents 1. Precautions 2. Product Specifications and Description 3. Disassembly and Reassembly 4. Alignment and Troubleshooting 5. System Diagrams 6. Reference Information Refer to the service manual in the GSPN (see the rear cover) for more information.
  • Page 2: Table Of Contents

    Registration Unit................... 2 − 22 2.2.5.6. Multi-Purpose Feeder Unit ................2 − 23 2.2.6. Image Creation ......................2 − 24 2.2.6.1. Printing Process Overview ................2 − 24 2.2.6.2. Imaging Unit ....................2 − 25 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 3 Precautions when replacing parts ....................3 − 1 3.1.1. Precautions when assembling and disassembling ..............3 − 1 3.1.2. Preautions when handling PBA ..................3 − 1 3.1.3. Releasing Plastic Latches ....................3 − 2 3.2. Screws used in the printer......................3 − 3 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 4 Stacker Motor ......................3 − 26 3.6. Mail box ..........................3 − 27 Alignment and Troubleshooting ......................4 − 1 4.1. Alignment and Adjustment ......................4 − 1 4.1.1. Control Panel........................4 − 1 4.1.2. Understanding the status LED..................4 − 3 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 5 Periodic defective image ....................4 − 18 4.1.6. Useful management tools ....................4 − 19 4.1.6.1. Using Samsung Easy Printer Manager (Windows only) ........4 − 19 4.1.6.2. Using Samsung Printer Status (Windows only) ........... 4 − 20 4.1.6.3. Using Smart Panel (Macintosh and Linux only) ..........4 − 21 4.1.7.
  • Page 6 Contents 6.3. The Sample Pattern for the Test ....................6 − 8 6.4. Selecting a location ........................6 − 9 6.5. Document Revision List......................6 − 10 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 7: Precautions

    High voltages and lasers inside this product are dangerous. This product should only be serviced by a factory trained service technician. 2) Use only Samsung replacement parts. There are no user serviceable parts inside the product. Do not make any unauthorized changes or additions to the product as these could cause the product to malfunctions and create an electric shocks or fi re hazards.
  • Page 8: Caution For Safety

    Take care not to cut or damage the power cable or plugs when moving the machine. 9) Use caution during thunder or lightning storms. Samsung recommends that this machine be disconnected from the power source when such weather conditions are expected. Do not touch the machine or the power cord if it is still connected to the wall socket in these weather conditions.
  • Page 9: Handling Precautions

    1.2.4. Assembly and Disassembly precautions 1) Replace parts carefully and always use Samsung parts. Take care to note the exact location of parts and also cable routing before dismantling any part of the machine. Ensure all parts and cables are replaced correctly. Please carry out the following procedures before dismantling the product or replacing any parts.
  • Page 10: Disregarding This Warning May Cause Bodily Injury

    5) Do not install the printer on a sloping or unstable surface. After installation, double check that the printer is stable. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 11: Esd Precautions

    9) Minimize bodily motions when handling unpackaged replacement ESDs. Normal motions, such as the brushing together of clothing fabric and lifting one’s foot from a carpeted floor, can generate static electricity sufficient to damage an ESD. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 12: Product Specifications And Description

    ML-451x Series : 7K / 15K • ML-501x Series : 7K / 15K / 20K 8) Various Optional Units • ML-451x Series : Optional Memory, SCF • ML-501x Series : Optional Memory, SCF, Mass Storage Device, Mailbox, Finisher Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 13: Specifcations

    128 MB 256 MB Device Memory 640 MB 768 MB 5010ND/ 5012ND : 4 Line • Text Graphic LCD Control Panel 4 Line Text Graphic LCD 5015ND/ 5017ND : TFT LCD • (Touch Screen) Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 14: Print Specifications

    - Transparency : 138~146 g/m² (16~24 lb) - Transparency : 138~146 g/m² (16~24 lb) - Label : 120~150 g/m² - Label : 120~150 g/m² - Letterhead : 90 g/m² cotton paper - Letterhead : 90 g/m² cotton paper Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 15 - Paper Size Detect: Yes Out put Stacking Face Down 500 sheets @ 20lb (80 g/m²) 500 sheets @ 20lb (80 g/m²) (Main set) 400 sheets @ 20lb (80 g/m²) (100 sheet 4bin mail box Face Down 4-bin) Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 16 A4, Letter, Legal, folio, Oficio Automatic duplex Media types Plain Paper, Thin Paper, Thick Paper Plain Paper, Thin Paper, Thick Paper Media weight 60 ~ 120g/ (16 ~ 32lb) 60 ~ 120g/ (16 ~ 32lb) Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 17: Software And Interface Specifications

    High Speed USB 2.0 • Device 1 port • Device 1 port Interface Host 1 port (Rear 1) Host 2 port (Rear 1, Front 1) • • Wired Network 10/100/1000 Base TX 10/100/1000 Base TX Wireless Network Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 18: Network Specifications

    Sun Solaris 8,9,10 (SPARC/x86) • Sun Solaris 8,9,10 (SPARC/x86) IBM AIX 5.x (6.1) IBM IBM AIX 5.x (6.1) IBM Linux (System P) HP-UX Linux (System P) HP-UX Others (Unix) 11i (PA-RISC/IA-64) 11i (PA-RISC/IA-64) (11.11/11.20/11.22/11.23/11.31) (11.11/11.20/11.22/11.23/11.31) Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 19: Consumables

    JC91–01028A (220V) • • Part Code JC91–01029A (110V) JC91–01029A (110V) • • NOTE It will be affected by the operating system used, computing performance, application software, connecting method, media type, media size and job complexity. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 20 ML-451x series can install only 1 optional tray, but ML-501x series can install max. 4 optional trays. • Production of finisher and mailbox is discontinued.('15.June) Also, the machine which were produced since June 9th, 2015 need to be reworked to compatible with finisher and mailbox. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 21: Finisher And Mail Box Specifications

    – 5000 staples per a stapler cartridge Paper Size Length (148~357mm) × Width (148~216mm) Length (148~357mm) × Width (98~216mm) Paper Weight 60~163 g/(16~43 lb) 60~163 g/(16~43 lb) Machine life 1,000,000 sheets or 5 years 1,000,000 sheets or 5 years Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-10...
  • Page 22 4.33 × 8.66 ● Envelope C5 × 229.0 6.38 × 9.02 ● Envelope C6 × 162.0 ● Custom × 182.0 3.86 × 7.17 ● × 216.0 7.17 × 8.50 ● ● ● ● 2-11 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 23: Model Comparison Table

    - High speed USB 2.0 Interface - Ethernet 10/100/1000 Base TX - Ethernet 10/100/1000 Base TX - Ethernet 10/100 Base TX - Wireless LAN (Option) 4-Line 2-Line 4-Line Main Box /Finisher Option Option Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-12...
  • Page 24: Product Description

    Stapler cover Front cover Optional wireless cover Control panel Control board cover Output tray Short stand Toner cartridge Paper level indicator Imaging unit Optional tray Multi-purpose tray paper width guides Tray1 Muti-purpose tray extension 2-13 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 25: Rear View

    Some features and optional goods may not be available depending on model or country. Finisher cover (Stacker & Stapler) IEEE 1284 parallel connector Rear cover USB port Mailbox cover USB memory port Power receptacle Network port Power switch Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-14...
  • Page 26: Paper Path

    2. Product Specifications and Description 2.2.3. Paper Path The following diagram displays the path the paper follows during the printing process. Fin is he r [Mailbox] pa th Du ple x pa th imple x pa th 2-15 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 27: System Layout

    Mail Box or Finisher 3rd Tray (Optional) Imaging Unit Laser Scanning Unit 4th Tray (Optional) Transfer Unit Fuser Unit 5th Tray (Optional) MP Tray 1st Tray Stand Pick-Up rollers 2nd Tray (Optional) Toner Cartridge Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-16...
  • Page 28: Feeding System

    Drive system for these components, and many sensors. 2.2.5.1. Feeding System Overview The following diagrams display the feeding system for ML-451x/501x series. COVER REAR REGI MP F CAS S ETTE DUP LEX ICKUP 2-17 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 29: Main Components And Functions

    2. Product Specifications and Description 2.2.5.2. Main components and functions Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-18...
  • Page 30 • Registration Sensor This sensor detects that the leading edge of the paper has reached the registration roller and that the trailing edge of the paper has passed the registration roller. 2-19 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 31: Paper Tray

    Auto detect: A5, Executive, B5, A4, Letter, Folio, Legal (7 Types) Special Paper : Envelop, Label, Cardstock (50 sheets) • Weight : plain paper 60 ~ 163g/ • Plate knock up Lift type : Lift Motor + Up Limit Sensor Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-20...
  • Page 32: Pick-Up Unit

    ROLLER-FORWAR D ACTUATOR-P AP ER EMP TY 2-21 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 33: Registration Unit

    Less than 1.0 mm (Simplex, Duplex Short) Less than 1.5 mm (Duplex Long and SCF) • Side Skew (Vertical Skew) @ 260 mm Less than 1.5 mm (Simplex, Duplex Short) Less than 2.0 mm (Duplex Long and SCF) Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-22...
  • Page 34: Multi-Purpose Feeder Unit

    Media Size : Max 8.5”×14” (215.9×355.67) / Min 3”×5” (76.2x127) • Media weight : Plain paper 60 ~ 220g/ • Feeding speed : 43 ppm (ML-451x series), 48 ppm (ML-501x series) in A4 LEF (Long Edge Feeding) 2-23 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 35: Image Creation

    5) Cleaning for OPC drum: The cleaning blade removes remaining toners on the drum surface after image transfer to the paper. 6) Quenching for OPC drum: Discharging the drum is done by illuminating the whole area of the drum with the LED lamps at the end of every job. Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-24...
  • Page 36: Imaging Unit

    The cleaning blade removes remaining toner on the drum surface. The CRUM chip in the image unit stores the data about the Imaging unit. Mag netic Ro ller Charg e Ro ller OP C Drum Cleaning b lad e Mixing Aug er 2-25 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 37 S ens o r Two mixing augers [B] circulate the developer forward and backward to mix the carrier and toner well. This job occurs at the following times: • During TC calibration • During development job Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-26...
  • Page 38: Fuser Unit

    Temperature is normally controlled by turning on and off the center heating lamp and side heating lamp, respectively, corresponding to predetermined target temperatures. Thermostat Thermistor : Contact NC S ensor Halogen Lamp Drum-Fuser Belt 2-27 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 39: Fuser Unit Main Components

    The Drive Motor [A] drives the Pressure roller [B] through the gear train. The fuser belt [C] is driven by pressure with the pressure roller. Fuser Belt [C] Pr essure Roller [B] Drive Motor [A] Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-28...
  • Page 40: Temperature Contorl

    If one of the thermostat temperatures becomes higher than 190°C, it opens and cuts power to the fusing lamp. If the other thermostat temperature becomes higher than 190°C, it also opens and cuts power to the fusing lamp. 2-29 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 41: Laser Scanning Unit

    The LSU is the optical precision device. Please handle it carefully and do not remove the cover. S c a n D S ens o r LD PBA P/Mirror Motor F-Lens Reflect Mirror Cover Glass • Information Part Code : JC97-03877A [LSU] Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-30...
  • Page 42: Laser Scanning Optical Path

    30,476 rpm Process Speed 288.17 mm/sec 258.03 mm/sec H/W interface LD Harness : 14 Pin FFC LD Harness : 14 Pin FFC P/Motor Harness : 5 Pin FFC P/Motor Harness : 5 Pin FFC 2-31 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 43: Drive System

    2. Product Specifications and Description 2.2.9. Drive System This section describes the printer drive system parts and process. 2.2.9.1. Drive Motors The following diagram displays the locations of the printer drive motors. Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-32...
  • Page 44 Regi. Shaft driving PM-STEP Exit Roller driving DRIVE EXIT E-Clutch Fuser pressure driving E-Clutch MP Pick up shaft driving DRIVE FEED CST elevating driving DUPLEX E-Clutch Duplex driving PICK UP E-Clutch Pick-Up driving 2-33 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 45: Main Drive Unit(Opc, Deve, Toner, Fuser, Regi.)

    2.2.9.2. Main Drive Unit(OPC, DEVE, Toner, Fuser, Regi.) Front View Rear View Ag itato r Co u p lin g To n er Co u p lin g • Information Part Code : JC93-00348A [DRIVE MAIN] Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-34...
  • Page 46: Exit Drive Unit

    Step motor → Gear → Gear → Exit Roller 3 driving • Step motor → Gear → Gear → Exit Roller 2 driving • Step motor → Gear → E-Clutch → Gear → Gear → Fuser pressure driving 2-35 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 47: Tray Lifting Drive Unit

    The following diagram displays the tray lifting drive unit : Cas s ette Elevatin g Tray lifting is operated by the DC motor. • Power Train DC motor → Gear → Gear → Gear → Gear → Tray lifting Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-36...
  • Page 48: Hardware Configuration

    ML-451x/5010/5012 series has adopted the 4–line graphic LCD, ML-5015/5017 series has adopted the 4.3 inch TFT LCD (GUI). For optional tray, ML-451x series can install only 1 optional tray, but ML-501x series can install max. 4 optional trays. 2-37 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 49 J o in t P BA Fu s er Drive Bo ard S MPS To n er Cru m I/F P BA Eras er P BA DEVE Cru m I/F P BA HVPS Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-38...
  • Page 50 : JC92-02354C PHOTO-INTERRUPTER (Binfull sensor) 0604-001325 BIN FULL detection SENSOR-PAPER SIZE JC34-00001A Paper size detection SWITCH-LIMIT UPPER JC39-01443A Pickup position detection CONNECTOR-REAR COVER JC39-01431A PBA-DEVE-CRUM JC92-02163A PBA-TCRUM_IF JC92-01963A CONNECTOR-SCF JC39-01441A SENSOR-INNER TEMPERATURE 1404-001417 2-39 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 51 Duplex Clutch OPC Motor Registration Clutch Exit Motor Cassette Pick up Clutch Toner Supply Motor MP Pick up Clutch Knock-Up elevating motor Envelope pressure clutch Fan Location Main Fan LSU Fan SMPS Fan Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-40...
  • Page 52: Main Controller

    It supports the optional hard disk drive through the Sata Block. The LPEC1 for controlling the sensor and drive is connected to the LOCAL in the main controller. It supports the USB device 1ch, Host 1ch, Giga Network 1ch. It has the optional Micom(Attiny25) for protecting the IFS2 fuser unit. 2-41 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 53 JC92–02355G : /XAZ, /XBG, /XPE ▪ ML-5015/5017ND series • JC92–02356A : /SEE • JC92–02356B : /XAA • JC92–02356E : /ETS, /STS, /TED, /XEV, /XFA, /XIP, /XSG, /XSS • JC92–02356G : /XAZ, /XBH, /XPE Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-42...
  • Page 54 Operation Panel HVPS 4.3inch LCD USB I/F(5015 only) Toner/DEVE Crum/TC Front USB(5010/5015 only) Interface PBA MSOK(Xerox Model Only) SATA Power SMPS SATA Signal SMPS(24V_remote) 5V DC Jack Fuser Thermistor SIM Socket (Xerox Model Only) 2-43 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 55 512MB capacity (expandable to 1GB) • 32-bit non ECC DDR2 200MHz speed. NOTE Only this memory can be installed to the main controller. • Information SEC-CODE : JC92-02087C PBA Name : DDR2 RAM DIMM Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-44...
  • Page 56: Ope Controller

    P r oce s s or 16-bit 4-bit S 3 C2 4 1 6 0 0 MHz GPIO OP E KEY P BA Ke y & LEDs USB 2.0 Ma in Con t rolle r 2-45 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 57 • Connection Main IF LCD IF Touch OPE PBA (ML-5015/5017 only) • Information SEC-Code : JC92–02378A PBA Name : Numeric OPE • Connection Main IF (USB) OPE Key IF Main IF LCD IF Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-46...
  • Page 58 2. Product Specifications and Description OPE Key PBA (ML-5015/5017 only) • Information SEC-Code : JC92–02379A PBA Name : OPE KEY • Connection Touch OPE PBA IF FFC Cable 2-47 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 59: Smps And Fdb Board

    FDB : AC Lamp1 : 700W / AC Lamp2 : 600W • Information SMPS 110V 220V SEC Code JC44–00091C JC44–00092C PBA Name SMPS V1 SMPS V2 110V 220V SEC Code JC44–00203A JC44–00204A PBA Name FDB V1 FDB V2 Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-48...
  • Page 60 PIN NAME Description +5V1 Power 5V Ground +5V2 Power +GND 24V Ground +24V1 Power 24V Ground +24V2 Power 24V Ground +24V3 Power SMPS,Signal Connector2(CN3) PIN ASSIGN PIN NAME Description Ground 24V_ON_OFF SMPS Control Ground 2-49 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 61 AC Input Acne FDB, AC Input Connector( CN3) PIN ASSIGN PIN NO Description AC_L AC Input AC_N FDB, AC Input Connector( CN4) PIN ASSIGN PIN NO Description LAMP1 AC Output (to Lamp) LAMP2 COMMON Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-50...
  • Page 62: Hvps Board

    HVPS (High Voltage Power Supply) Unit generates high-voltage channels which includes THV, MHV, DEVE AC, DEVE DC, Fuser-bias and SAW. • Information SEC-CODE : JC44-00202A PBA Name : HVPS MONO • Connection Rear Fan Fuser Bias NSENS HVPS Input LSU Fan 2-51 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 63: Eraser Pba

    This board cuts off and supply DC power when the front cover is opened or closed. It has the 24V power interlock function for safety. • Information SEC-CODE : JC92-02371A • PBA Name : Cover-Open • Connection • 3,4,5 24VS 6,7,8 Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-52...
  • Page 64: Joint Pba

    2.2.10.8. Deve Crum Joint PBA The Deve Crum Joint PBA is the interface PBA between the Imaging Unit and the system. • Information SEC-CODE : JC92-02163A • PBA Name : DEVE CRUM JOINT • 2-53 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 65: Toner Crum Joint Pba

    The Deve Crum PBA is the interface PBA between the main controller and imaging unit. It provides the interface for Crum, TC sensor. • Information SEC-CODE : JC92-02371A PBA Name : DEVE CRUM I/F Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-54...
  • Page 66: Finisher

    This unit aligns the paper and transports the aligned papers to the tray. Stapler Unit This unit staples the paper. Endfence Unit This unit is the base level for aligning paper. Stacker Unit This unit is stacks the output papers. 2-55 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 67: Layout And Paper Path

    Jam Guide Sensor Roller Feed Exit Exit Sensor Roller Feed Middle Upper Tamper Home Sensor (Front) Roller Feed Middle Lower Tamper Home Sensor (Rear) Roller Feed Entrance Extension Tray Home Sensor Guide Left Jam Clear Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-56...
  • Page 68: Electrical Parts Location

    ASSY:PM MOTOR:M08Z18 Front Tamper Motor HF10 3139 ASSY:PM MOTOR:M08Z18 Rear Tamper Motor JC81-03478A ASSY:PM MOTOR:S2M20T Extension Tray Motor JC81-03475AB STAPLER:EH-C590SS Stapler Motor JC81-08264A AS-DC MOTOR:2738:S2M12T:PCB Stacker Moving Motor HF10 8200 PCB ASSY:MAIN:HF-FIN Finisher PCB 2-57 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 69: Finisher Main Board

    Stapler Door/Safety Switch P/J5 Feeding Motors and Extension Tray Motor P/J6 Tamper Motors P/J7 Stacker, Extension Tray, Diverter, Entrance Sensors P/J8 Exit, Jam Cover, Tamper Sensors P/J9 Stapler Motors and Sensors P/J14 Stacker Motor Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-58...
  • Page 70: Mail Box

    Exit Roller : Bin#2 Exit Sensor : Bin#3 Feed Roller : Bin#2 Upper Gate SensorLevel Sensor Exit Roller : Bin#1 Full Sensor :Bin#3 Feed Roller : Bin#1 Exit Sensor : Bin#4 AS-COVER JAM FRAME ASSY 2-59 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 71: Electrical Parts Location

    Upper Gate Sensor JC81-03469A MICRO SWITCH:VP333A-0D Door Open Switch JC81-07280A SEPARATE MOTOR:SUB ASSY Lower Gate Motor JC81-07280A SEPARATE MOTOR:SUB ASSY Lower Gate Motor JC81-07281A HB MOTOR:FEED:SUB ASSY Feed Motor JC81-07277A AS-PCB ASSY MAIN Mailbox PCB Copyright© 1995-2016 SAMSUNG. All rights reserved. 2-60...
  • Page 72: Mail Box Main Board

    The following diagram displays the connection information of the mail box main board. /J 1 Connector Number Name P/J1 PSU (+24V, +5V), ENGINE INTERFACE P/J2 Door Switch P/J3 Feeding Motor and Upper Gate Motors P/J4 Entrance, Upper Gate Sensors P/J5 Exit, Full Sensors 2-61 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 73: Disassembly And Reassembly

    3.1.1. Precautions when assembling and disassembling • Use only approved Samsung spare parts. Ensure that part number, product name, any voltage, current or temperature rating are correct. Failure to do so could result in damage to the machine, circuit overload, fire or electric shock.
  • Page 74: Releasing Plastic Latches

    Many of the parts are held in place with plastic latches. The latches break easily; release them carefully. To remove such parts, press the hook end of the latch away from the part to which it is latched. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 75: Screws Used In The Printer

    6003-000196 FRAME-UPPER SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000196 FRAME-MAIN SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000269 FRAME-MAIN SCREW-TAPTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- 6003-000269 DRIVE MAIN SCREW-TAPTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- 6003-000301 DRIVE MAIN SCREW-TAPTYPE;BH,+,S,M4,L6,ZPC(WHT),SWRCH18A 6009-001665 DRIVE MAIN SCREW-HEX;HWH,+,M3,L6,ZPC(WHT),SWRCH18A,C TYPE FRAME-GUIDE OPC 6003-000196 SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A RIGHT 6003-000196 FRAME-MIDDLE SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 76 6003-000196 COVER-REAR SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6006-001078 COVER-FRONT SCREW-TAPTYPE;PH,+,WSP,B,M3,L10,ZPC(WHT),SWRCH18A 6003-000196 COVER-TOP SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000282 SCREW-TAPTYPE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,- 6003-000196 OPE-4.3LCD SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000269 OPE-4.3LCD SCREW-TAPTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- 6003-000196 MAINLINE SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000269 MAINLINE SCREW-TAPTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- 6003-000301 MAINLINE SCREW-TAPTYPE;BH,+,S,M4,L6,ZPC(WHT),SWRCH18A 6009-001492 MAINLINE SCREW-HEX;HWH,+,M3,L8,NI PLT,SWRCH18A,S,RF Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 77: Replacing The Maintenance Parts

    1. Open the rear cover. While opening the rear cover at a 45° angle, lift up the right side of the rear cover, Then take off the rear cover. 3. Lift up the both levers. Then take off the fuser unit. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 78: Pick Up / Forward Roller

    2. Remove the pick up and forward roller as shown image. 3.3.3. Transfer roller 1. Open the front cover. Remove the toner cartridge and 2. Push the both handles to the direction of arrow. Take imaging unit. off the transfer roller. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 79: Replacing The Main Svc Parts

    5. Remove 4 screw securing the OPE unit. releasing hooks from both sides. 6. Release the OPE unit. Unplug the connector. 3. Open the rear cover. Lift up the right side and release the rear cover. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 80 10. Remove 4 screws securing the right cover. Rear 8. Lift up and release the top cover. 11. Remove the rear dummy cover. 9. Remove the main board cover. 12. Release the right cover. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 81: Main Board

    2. Unplug all connectors on main board. 3. Remove 4 screws. 3.4.3. Joint PBA 1. Remove the right cover. 4. Release the Joint PBA. 2. Unplug all connectors on main board. 3. Remove 4 screws. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 82: Smps And Fdb(Fuser Drive Board)

    2. Remove 3 screws securing the SMPS cover.. 5. Unplug all connector on the SMPS board. Remove 3 3. Release the SMPS cover after unplugging the connector. screws. And release the SMPS board. 3-10 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 83: Opc And Main Motor

    2. Remove the Joint PBA. 3. Remove the SMPS cover. 4. Remove the MP clutch and the Gear. NOTE When reassembling the main drive unit, tighten 5 screws in order as shown above. Copyright© 1995-2016 SAMSUNG. All rights reserved. 3-11...
  • Page 84: Duplex And Pick Up Clutch

    3. Remove the clutch bracket after removing 2 screws. 3.4.8. HVPS Board 1. Remove the left cover. 4. Release the HVPS board. 2. Remove the 4 screws. 3. Unplug all connectors on the HVPS board. 3-12 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 85: Exit Unit

    2. Remove the bracket after removing 2 screws. NOTE When reassembling the exit unit, first tighten these screws to secure the frame and bracket. 3. Remove the 4 screws from the rear. Copyright© 1995-2016 SAMSUNG. All rights reserved. 3-13...
  • Page 86: Lsu (Laser Scanning Unit)

    3.4.11. Eraser Lamp PBA 1. Remove the top cover. 4. Pull the eraser lamp PBA to the left slightly. And then release it. 2. Remove the LSU. 3. Remove 1 screw and push 1 hook. 3-14 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 87: Cover Open Pba

    Before disassembling Pick up assy, have to disassemble the parts on the following bookmark 3.3.13.1 ~ 3.3.13.8. 3.4.13.1. Left Cover 1. Remove 2 screw in the rear. 2. Remove 3 screw in the front. 3. Release Left Cover after removing the screws. Copyright© 1995-2016 SAMSUNG. All rights reserved. 3-15...
  • Page 88: Cassette Guide L

    1. Remove 4 screw securing HVPS. 3. Pull and release the Cassette Guide L while pushing its 2 poles. 2. Remove 5 screw. 3.4.13.3. Right Cover 1. Release Cover-Dummy. 2. Remove 2 screw in the rear. 3-16 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 89 3. Disassembly and Reassembly 3. Remove 2 screw in the front. 4. Release the right cover. Copyright© 1995-2016 SAMSUNG. All rights reserved. 3-17...
  • Page 90: Cover-Smps And Smps

    1. Don’t completely release Drive after removing the screw. Make a only space for releasing Clutch. 3.4.13.6. Pick up and Duplex Clutch 1. Release the cover after removing the screws for each cover 3-18 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 91: Screw

    3. Disassembly and Reassembly 2. Release each Clutch. 3. Release Duplex belt. 3.4.13.7. Screw 1. Remove 2 screw. 3.4.13.8. Bracket Cross Bar and Pick up Harness 1. Release 2 harness. Copyright© 1995-2016 SAMSUNG. All rights reserved. 3-19...
  • Page 92: Pick Up Assy

    3. Disassembly and Reassembly 2. Release Bracket Cross Bar. 3.4.13.9. Pick up assy 1. Release the gear after removing the washer 2. Release Pick Up Assy after removing 4 screw. 3. Disassembly completion. 3-20 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 93: Finisher

    3.5. Finisher 3.5.1. Cover 1. Remove 4 screws. 4. Remove the staple cartridge. 5. Remove the finisher front cover. 2. Open the jam guide. Remove 2 screws. 3. Remove the finisher rear cover. Copyright© 1995-2016 SAMSUNG. All rights reserved. 3-21...
  • Page 94: Stapler Ass'y

    2. Remove 3 screws. Unplug 2 connectors. And remove the Stapler Ass’y. 3.5.3. Safety sensor 1. Remove the finisher front cover. 2. Remove 2 screws. Unplug 2 connectors. And remove the Safety sensor. 3-22 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 95: Tamper Ass'y

    1. Remove the finisher front/rear cover. 4. Remove 2 screws. 2. Release the Jam guide after removing both bushes. 5. Remove 2 screws from the opposite. 3. Remove 2 screws securing the safety sensor. Copyright© 1995-2016 SAMSUNG. All rights reserved. 3-23...
  • Page 96 9. There are 2 temper motors. To remove a tamper motor, remove 2 screws and 1 connector. 7. Remove the finisher top cover. 10. To remove the door open sensor and exit sensor, unplug the connector. 3-24 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 97: Finisher Main Board

    3.5.6. Diverter Assy 1. Remove the finisher rear cover. 3. Remove the One-Way Bearing after removing 3 E-rings and spring. 2. Remove the Diverter Sensor after unplugging the connector. Copyright© 1995-2016 SAMSUNG. All rights reserved. 3-25...
  • Page 98: Stacker Motor

    3. Disassembly and Reassembly 3.5.7. Stacker Motor 1. Remove the finisher front cover. 3. Unplug the connector. 2. Remove 2 screws. 3-26 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 99: Mail Box

    2. Remove 2 screws to separate front/rear cover. 3. Remove the front cover. Separate the rear cover after unplugging the connector. 6. Open the Assy Shield TOP. If necessary, remove switch or sensor. Copyright© 1995-2016 SAMSUNG. All rights reserved. 3-27...
  • Page 100 Remove 2 screws(green color) from the front. NOTE 12. Remove 2 screws (green color) from the rear. When re-assembling these, align the groove of both gears. 9. Separate the bracket and main board after remove 5 screws. 3-28 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 101 3. Disassembly and Reassembly 13. Remove the ROLLER:STACKER. 15. Push the Ass’y actuator shield to the direction of arrow. And Separate it from the opposite side. 14. Remove the SEPARATE:PAWL:FEED by unhooking 16. Done. the side. Copyright© 1995-2016 SAMSUNG. All rights reserved. 3-29...
  • Page 102: Alignment And Troubleshooting

    (Menu) Confirms the selection on the display. Stops an operation at any time. (Cancel) You can turn the power on and off with this button. (Power) Shows the status of your machine. (Status LED) Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 103 Shows the current status and prompts during an operation. Stops an operation at any time. (Cancel) You can turn the power on and off with this button. (Power) Shows the status of your machine. (Status LED) Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 104: Understanding The Status Led

    • To resolve the error, look at the error message and its instructions from the troubleshooting part. • You also can resolve the error with the guideline from the computers’s Samsung Printer Status or Smart Panel program window. Status Description The machine is off-line.
  • Page 105: Jam Removal

    To avoid tearing the paper, pull it out gently and slowly. If the paper does not move when you pull, or if you do not see the paper in this area, check the fuser area around the toner cartridge. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 106: In Optional Tray

    4. Insert the trays back into the machine. If the paper does not move when you pull or if you do not see the paper in this area, stop and go to the next step. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 107: In The Multi-Purpose Tray

    2. Close the MP tray. If the paper does not move when you pull or if you do not see the paper in this area, stop and go to the next step. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 108: Inside The Machine

    Cover it with a piece of paper, if necessary. 4. Carefully lift up the guide feed as shown below. 5. Remove the jammed paper by pulling in the direction shown. To avoid tearing the paper, pull it out gently and slowly. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 109 9. Open the rear cover. 7. Reinsert the imaging unit and toner cartridge. 10. By opening the fuser lever, loosen the jammed paper. Then gently pull the paper straight out. 8. Close the front cover to resume printing. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 110 4. Alignment and Troubleshooting 11. Put the fuser levers to their original position. 12. Close the rear cover. Printing automatically resumes. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 111: In The Exit Area

    4. Close the rear cover. Printing automatically resumes. If you do not see the jammed paper or if there is any resistance when you pull, stop and go to the next step. 2. Open the rear cover. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-10...
  • Page 112: Paper Jam In Front Of The Finisher

    To avoid tearing the paper, pull it out gently and slowly. 2. Open the machine’s rear cover. 4. Close the finisher’s rear cover and machine’s rear cover. 4-11 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 113: Paper Jam Inside The Finisher

    1. Open the finisher’s rear cover. 3. Close the finisher’s rear cover. 2. Remove the jammed paper by pulling in the direction shown. To avoid tearing the paper, pull it out gently and slowly. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-12...
  • Page 114: Paper Jam At The Exit Of The Finisher

    To avoid tearing the paper, pull it out gently and slowly. 4.1.3.9. Paper jam in front of the multi-bin mailbox 1. Open the mailbox’s rear cover. 2. Open the machine’s rear cover. 4-13 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 115: Paper Jam Inside The Multi-Bin Mailbox

    4.1.3.10. Paper jam inside the multi-bin mailbox 1. Open the mailbox’s rear cover. 2. Remove the jammed paper by pulling in the direction shown. To avoid tearing the paper, pull it out gently and slowly. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-14...
  • Page 116: Paper Jam At The Exit Of The Multi-Bin Mailbox

    1. Remove the jammed paper by pulling in the direction 2. Open and close the mailbox’s rear cover to resume shown. To avoid tearing the paper, pull it out gently printing. and slowly. 4-15 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 117: Useful Menu Items For Service

    Print quality is affected by atmospheric pressure, which is determined by the height of the machine above sea level. The following information will guide you on how to set your machine for the best print quality. Before you set the altitude value, determine the altitude where you are. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-16...
  • Page 118 High 2 (3,280 ft) High 1 4 Normal • For windows user, use the Samsung Easy Printer Manager. • For Macintosh, Linux, or Unix OS user, use the Smart Panel. NOTE • If your machine is connected to the network, you can set the altitude via SyncThru™ Web Service.
  • Page 119: Periodic Defective Image

    Black Spot and line and periodic band Imaging unit Magnetic Roller 56.6 mm White spot, Horizontal black band OPC Drum 94.2 mm White and Black Spots Transfer Roller 56.5 mm Ghost, Damaged image by abnormal Transfer roller transfer Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-18...
  • Page 120: Useful Management Tools

    Understanding Samsung Easy Printer Manager To open the program: Select StartPrograms or All Programs > Samsung Printers > Samsung Easy Printer Manager. The Samsung Easy Printer Manager interface is comprised of various basic sections as described in the table that follows: Area Description Printer List The printer list displays the installed printer icons on your computer.
  • Page 121: Using Samsung Printer Status (Windows Only)

    Check the operating system(s) that are compatible with your machine (see Basic guide). Samsung Printer Status overview If an error occurs while operating, you can check the error from the Samsung Printer Status. Samsung Printer Status is installed automatically when you install the machine software.
  • Page 122: Using Smart Panel (Macintosh And Linux Only)

    Smart Panel is a program that monitors and informs you of the machine’s status, and allows you to customize the machine’s settings. For Macintosh, Smart Panel is installed automatically when you install the machine software. For Linux, you can download Smart Panel from the Samsung website. 4-21...
  • Page 123 Printer Settings Utility. Changing Smart Panel‘s settings Right-click in Linux or in Mac OS X click on the Smart Panel icon and select Options. Select the settings you want from the Options window. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-22...
  • Page 124: Updating Firmware

    3) Turn the machine on. Check if the printer is the ready status. 4) Drag the firmware file and Drop down on the usblist2.exe. And then firmware update will be started automatically. 5) When upgrading is completed, machine will be automatically reboot. 4-23 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 125: Update The Firmware By Using The Network

    NOTE If the machine supports ‘Direct Print’, you can enable this function using the SWS menu. The default configuration is ‘Disabled’ for your security 3) Select Maintenance menu and click “upgrade wizard” Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-24...
  • Page 126 4) Select firmware file using “browser” button and press next button. 5) SyncThru will check verify firmware file and compare version and press next button. 6) Machine starts upgrading. SyncThru will return home page after upgrading is completed. 4-25 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 127: Tech Mode

    To enter the Tech Mode, press “Menu + # + 1 + 9 + 3 + 4” in sequence • ML-5015/5017 series While pressing the “Cancel” button, press the triangle button on LCD. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-26...
  • Page 128: Tech Mode Menu

    Error Information Printing… Job Duty Printing… ID Control History Printing… NOTE NVM Read/ Write Refer to NVM Read/Write table. EDC Mode NVM Initialize Initialize Now NOTE Test Routines Refer to Test Routines table. 4-27 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 129 Refer to Test Routines table. Other Toner Low Level [1-30]% : 10 Counter Reset Fuser Pickup Roller Tray 1 Tray 2 Tray 3 Tray 4 Tray 5 MP Tray Transfer Roller Paper Substitution Format Mass Storage Device Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-28...
  • Page 130: Tech Mode Menu Description

    T4 Retard Rol 104-0023 T4 Retard Roller Life Page Counter 100K Life Page Counter Life T5 Retard Roller T5 Retard Rol 104-0024 T5 Retard Roller Life Page Counter 100K Life Page Counter Life 4-29 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 131 LD Power Black 0 = -200, 0070-LD 110-0070 (LD Light Level Black LD Power at Normal Speed 400/0 400 = Power K Black) 0030-Toner 111-0030 Toner Vcon Black Toner Vcon Black 900/50 Vcon K Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-30...
  • Page 132 (Optional) Engages drive to pick up a paper from tray4. 101-0040 T4 Pick-Up Clutch On[Off] Engine (Optional) Engages drive to pick up a paper from tray5. 101-0041 T5 Pick-Up Clutch On[Off] Engine (Optional) 4-31 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 133 Detects whether auto size2 sensor of tray4 102-0240 T4 Size2 sensor High[Low] Engine is high or low. Detects whether auto size3 sensor of tray4 102-0250 T4 Size3 sensor High[Low] Engine is high or low. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-32...
  • Page 134 Black Dev bias AC voltage on at normal 106-0031 Black Dev AC Bias On[Off] Engine drive level Black THV bias voltage on at normal drive 107-0030 Black THV Bias On[Off] Engine level 4-33 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 135 Stacker up to Stacking position Engine[Finisher] 113-0130 Stapler Staple when no cartridge Engine[Finisher] 113-0140 Entrance Sensor Detect paper at paper feeding area. High[Low] Engine[Finisher] 113-0150 Exit Sensor Detect paper at paper exit area. High[Low] Engine[Finisher] Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-34...
  • Page 136 116-0170 Detect Upper Diverter in Home position High[Low] Engine[Mailbox] Sensor Lower Diverter Home 116-0180 Detect Lower Diverter in Home position High[Low] Engine[Mailbox] Sensor 116-0190 Cover Open Sensor Detect Cover is closed High[Low] Engine[Mailbox] 4-35 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 137: Truobleshooting

    - Main PBA Red LED on / See the troubleshooting OPE LED Error message for error code Green OK? is displayed. Print (test page) Printing Refer to "Solution quality is of Image Problem" nomal? Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-36...
  • Page 138: Basic Check List

    Refer to image quality problem section. 6) Check consumables (toner etc.). • Using the keys print the Test Pattern. › Expected life of various consumable parts, compare this with the figures printed and replace as required 4-37 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 139: Error Code And Troubleshooting

    Page 4–53 H1-1510 Paper jam in Tray 5. Page 4–47 H1-1522 Tray 5 cassette is pulled out. Insert it properly. Page 4–49 H1-1530 Input System Failure: #H1-1530. Check Tray 5 connection. Page 4–50 Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-38...
  • Page 140 Paper Jam in front of mailbox bin 3. Remove paper. Page 4–86 H2-4401 Paper Jam at mailbox bin 3. Remove paper. Page 4–86 H2-4402 Paper Jam at mailbox bin 3. Remove paper. Page 4–88 4-39 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 141 Page 4–111 U1-2340 Fuser Unit Failure #U1-2340 : Turn off then on. Page 4–114 U2-1111 LSU Failure: #U2-1111. Turn off then on. Page 4–117 U2-1113 LSU Failure: #U2-1113. Turn off then on. Page 4–118 Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-40...
  • Page 142 ► Troubleshooting method 1) Turn off the machine then on. 2) If the problem persists, replace the imaging unit. 3) If the problem persists, replace the Main drive unit. (Refer to 3.4.6 Main Drive unit.) 4-41 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 143 4) If the harness is OK, check the No.4 pin voltage of the sensor. (Normal range : 0 ~ 2V) 5) If the value is 3.3V, replace the sensor. 6) If the value is in normal range, replace the main board. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-42...
  • Page 144 Check if the toner supply shutter between the toner cartridge and the imaging unit works normally. 5) Replace the toner cartridge. Print out the sample page. 6) Check if the toner supply motor works normally. 4-43 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 145 7) Turn the machine off then on. Try to test the machine. ► Error Code C1–1512 ► Error message Toner cartridge is not compatible. Check users guide. ► Symptom Toner cartridge is not compatible. ► Troubleshooting method Install the genuine samsung toner cartridge. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-44...
  • Page 146 ► Symptom Toner sensor is defective. The machine can’t detect the sensor signal in the imaging unit normally. ► Troubleshooting method 1) Install the genuine samsung imaging unit. 2) If the imaging unit is already installed, check the following. •...
  • Page 147 7) Turn the machine off then on. Try to test the machine. ► Error Code C3–1512 ► Error message Imaging unit is not compatible. Check users guide. ► Symptom Imaging unit is not compatible. ► Troubleshooting method Install the genuine samsung imaging unit. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-46...
  • Page 148 1) Remove the jammed paper. If the problem persists, check the followings. 2) Check if the paper is loaded in the SCF tray properly. 3) Check if the roller is defective or worn out. 4-47 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 149 7) Check if the Press D-cut of the Gear-Lifting is broken. 8) If the problem persists after checking No. 1~7, replace the SCF main board. 9) If the problem persists, replace the Drop connector harness. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-48...
  • Page 150 ► Troubleshooting method 1) Check if the optional cassette is inserted properly. Remove the cassette then re-install it. 2) Check if the Signal-Switch is deformed or broken. If it is defective, replace it. 4-49 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 151 1) Turn the machine off then on. 2) Check if the option tray harness on main board is connected properly. Reconnect or replace the harness. 3) Check if the SCF draw connector is broken. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-50...
  • Page 152 4. Alignment and Troubleshooting 4) If the problem persists, replace the SCF main board. 4-51 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 153 2) Check if the empty actuator and empty sensor are assembled properly. 3) If the empty actuator is defective, replace it. 4) If the problem persists after replacing the empty actuator, replace the empty sensor. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-52...
  • Page 154 ► Troubleshooting method 1) Check if the Gear-Idle Lift is broken. 2) Check if the Signal-Switch is operated properly. If it is defective, replace it. 3) Check if the Lift-Motor connector is connected properly. 4-53 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 155 4. Alignment and Troubleshooting 4) Check if the Press D-Cut of the Gear-Lifting is deformed or broken. 5) If the problem persists, replace the Lift-Motor. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-54...
  • Page 156 1) Check Jam Occurrence in IOT. If the IOT roller is grabbing the paper, it’s IOT fault 2) Check the Main Board Harness Connection. 3) Check Finisher Entrance operation & harness connection. 4) Check Finisher Feeding Entrance Motor Harness Connection and operation. 4-55 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 157 5) Check Finisher Feeding Exit Motor Harness Connection and operation. 6) If the same problem happens after checking 1~5, Replace the Finisher main board. 7) If the same problem happens after checking 6, replace the Finisher harnesses. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-56...
  • Page 158 5) Referring to H2-1800, Check the Finisher Diverter operation. 6) If the same problem happens after checking 1~5, Replace the Finisher main board. 7) If the same problem happens after checking 6, replace the Finisher harnesses. 4-57 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 159 3) Check Finisher Entrance operation & harness connection. 4) If the same problem happens after checking 1~3, Replace the Finisher main board. 5) If the same problem happens after checking 4, replace the Finisher harnesses. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-58...
  • Page 160 1) Check Jam Occurrence in IOT. If the IOT roller is grabbing the paper, it’s IOT fault. 2) Check the Main Board Harness connection. 3) Check Finisher Exit Sensor operation & harness connection. 4) Check Finisher Feeding Entrance Motor harness connection and operation. 4-59 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 161 5) Check Finisher Feeding Exit Motor Harness connection and operation. 6) If the same problem happens after checking 1~5, Replace the Finisher main board. 7) If the same problem happens after checking 6, replace the Finisher harnesses. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-60...
  • Page 162 3) Check Finisher Exit sensors’ operation & harness connection. 4) If the same problem happens after checking 1~3, Replace the Finisher main board. 5) If the same problem happens after checking 4, replace the Finisher harnesses. 4-61 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 163 Front Jogger Home Sensor, Front Jogger Motor harness connection not well or damaged, Main Board damaged. ► Troubleshooting method 1) Check the Main Board Harness Connection. 2) Check the Finisher Front Jogger Home Sensor’s harness connection. 3) Check the Finisher Front Jogger Motor’s Harness Connection and operation. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-62...
  • Page 164 4) Check if Front jogger part is contaminated. 5) If the same problem happens after checking 1~4, Replace the Finisher main board. 6) If the same problem happens after checking 5, Replace the Finisher harnesses. 4-63 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 165 Rear Jogger Home Sensor, Rear Jogger Motor harness connection not well or damaged, Main Board damaged. ► Troubleshooting method 1) Check the Main Board Harness Connection. 2) Check the Finisher Rear Jogger Home Sensor’s harness connection. 3) Check the Finisher Rear Jogger Motor’s harness connection and operation. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-64...
  • Page 166 4) Check if Rear jogger part is contaminated, broken or binding. 5) If the same problem happens after checking 1~4, Replace the Finisher main board. 6) If the same problem happens after checking 5, Replace the Finisher harnesses. 4-65 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 167 3) Check the Finisher Support Finger Motor’s Harness Connection and operation. 4) If the same problem happens after checking 1~3, Replace the Finisher main board. 5) If the same problem happens after checking 4, Replace the Finisher harnesses. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-66...
  • Page 168 Make sure that the staple strips on top of the stack are complete and flat. Remove any partial strips and any strips that are bent. 1) Check the Main Board Harness Connection. 2) Check the Stapler harness connections. 4-67 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 169 4) If the same problem happens after checking 1~3, Replace the Finisher main board. 5) If the same problem happens after checking 4, Replace the Finisher Stapler. 6) If the same problem happens after checking 5, Replace the Finisher harnesses. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-68...
  • Page 170 ► Troubleshooting method 1) Check the Main Board harness connection. 2) Check the Safety Switch harness connection. 3) Check the Safety Unit’s operation. Check the switch is clicked when the Safety Link moves. 4-69 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 171 Safety Switch should be ON. 6) If the same problem happens after checking 1~5, Replace the Finisher main board. 7) If the same problem happens after checking 6, Replace the Finisher harnesses. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-70...
  • Page 172 Stacker Level sensor, Stack Full sensor, Stacker Motor harness connection loose or damaged, Main Board is damaged. ► Troubleshooting method 1) Check the Main Board harness connection. 2) Check the Stacker Level Sensor’s harness connection and Actuator’s operation & its Spring behind the wall. 4-71 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 173 4) Check the Stack Full Sensor Connection and operation. 5) If the same problem happens after checking 1~3, Replace the Finisher main board. 6) If the same problem happens after checking 4, replace the Finisher harnesses. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-72...
  • Page 174 Diverter Motor, Sensor harness connection loose or damaged. Main Board Damaged. IOT’s Deflector damaged. ► Troubleshooting method 1) Check the Main Board Harness Connection. 2) Check the IOT’s Deflector operation. 3) Check Diverter sensor harness connection. 4-73 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 175 5) Check if Diverter Unit is not contaminated. 6) If the same problem happens after checking 1~5, Replace the Finisher main board. 7) If the same problem happens after checking 6, replace the Finisher harnesses. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-74...
  • Page 176 1) Check if the Jam Cover and Stapler door is closed firmly. 2) Check if Mounting Part not damaged - Male part in Finisher - Female part in IOT 3) Check the Main Board harness connection. 4-75 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 177 4. Alignment and Troubleshooting 4) Check the Stapler Door Switch harness connection. 5) Check if the Stapler Door flag is damaged. 6) Check the Jam Cover Sensor harness connection. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-76...
  • Page 178 7) Check if the Jam Cover flag is damaged 8) If the same problem happens after checking 1~7, Replace the Finisher main board. 9) If the same problem happens after checking 8, replace the Finisher harnesses. 4-77 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 179 2) Check Finisher Main Board Harness Connection. 3) If the same problem happens after checking 1~2, Replace the Finisher main board. 4) If the same problem happens after checking 3, Replace the Finisher harnesses. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-78...
  • Page 180 2) Check the Main Board Harness Connection. 3) If the same problem happens after checking 1~2, Replace the Finisher main board. 4) If the same problem happens after checking 3, Replace the Finisher harnesses. 4-79 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 181 Make sure that the staple strips on top of the stack are complete and flat. Remove any partial strips and any strips that are bent. 4) Check the Stapler harness connection. 5) Check the Cartridge Set sensors’ operation. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-80...
  • Page 182 7) If the same problem happens after checking 1~6, replace the Finisher main board. 8) If the same problem happens after checking 7, replace the Finisher Stapler. 9) If the same problem happens after checking 8, replace the Finisher harnesses. 4-81 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 183 Or Mailbox Entrance Sensor is not working (Mailbox Entrance Sensor Damaged, Harness connection loose, Main board is damaged) ► Troubleshooting method 1) Check Jam Occurrence in IOT. 2) Check IOT Deflector part’s operation. 3) Check Mailbox Main Board Harness connection. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-82...
  • Page 184 5) Refer to the Lower Diverter fault. 6) If the same problem happens after checking 1~5, Replace the mailbox main board. 7) If the same problem happens after checking 6, Replace the mailbox harnesses. 4-83 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 185 ► Troubleshooting method 1) Check Jam Occurrence in IOT. If the IOT roller is grabbing the paper, it’s IOT fault. 2) Check Mailbox Main Board Harness connection. 3) Check Mailbox Entrance operation & harness connection. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-84...
  • Page 186 4) Check Mailbox Feeding Motor Harness connection and operation. 5) If the same problem happens after checking 1~4, replace the mailbox main board. 6) If the same problem happens after checking 5, replace the mailbox harnesses. 4-85 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 187 Mailbox Gate doesn’t work or harness damaged. Or Mailbox Main Board damaged. ► Troubleshooting method 1) Check Jam Occurrence in IOT. - If the IOT roller is grabbing the paper, it’s IOT fault. 2) Check Mailbox Main Board Harness connection. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-86...
  • Page 188 6) Referring to Lower Diverter Fault, check the Lower Diverter’s operation 7) If the same problem happens after checking 1~6, replace the mailbox main board. 8) If the same problem happens after checking 7, replace the mailbox harnesses. 4-87 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 189 Paper exists covering Mailbox Exit Sensor. Or Mailbox Exit Sensor is damaged or harness connection loose. Or Mailbox Main board is damaged. ► Troubleshooting method 1) Check if there is a jammed paper on the feeding path of Mailbox. 2) Check Mailbox Main Board Harness connection. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-88...
  • Page 190 3) Check Mailbox Bin1 Exit-related sensors’ operation & harness connection. 4) If the same problem happens after checking 1~3, replace the mailbox main board. 5) If the same problem happens after checking 4, replace the mailbox harnesses. 4-89 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 191 Upper Diverter Motor or Upper Diverter Sensor is not assembled properly or damaged. Harness is damaged. Main Board is damaged. ► Troubleshooting method 1) Check Upper Diverter Motor harness connection. 2) Check Upper Diverter Sensor harness connection. 3) Check Mailbox Main Board harness connection. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-90...
  • Page 192 4) Check Upper Diverter operation. 5) Check Mailbox Gate operation. 6) If the same problem happens after checking 1~5, replace the mailbox main board. 7) If the same problem happens after checking 6, replace the mailbox harnesses. 4-91 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 193 Lower Diverter Motor or Lower Diverter Sensor is not assembled properly or damaged. Harness is damaged. Main Board is damaged. ► Troubleshooting method 1) Check Lower Diverter Motor harness connection. 2) Check Lower Diverter Sensor Harness connection. 3) Check Mailbox Main Board harness connection. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-92...
  • Page 194 4) Check Lower Diverter operation. 5) Check Mailbox Gate operation. 6) If the same problem happens after checking 1~5, replace the mailbox main board. 7) If the same problem happens after checking 6, replace the mailbox harnesses. 4-93 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 195 Rear Door is opened, Micro Switch is not assembled properly or damaged, Harness is damaged. Main Board is damaged, door flag is damaged. ► Troubleshooting method 1) Check the Rear Door Closed firmly. 2) Check Mailbox Main Board Harness connection. 3) Check the Rear Door Switch Harness connection. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-94...
  • Page 196 4) Check if the Mailbox cover flag is damaged. 5) If the same problem happens after checking 1~4, replace the mailbox main board. 6) If the same problem happens after checking 5, replace the mailbox harnesses. 4-95 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 197 ► Error Code H2-4A50 ► Error message Error: #H2-4A50 / Mainbox Failure: #H2-4A50. Check mailbox ► Symptom A communication problem has occurred at mailbox. ► Troubleshooting method 1) Check the connection between machine and mailbox. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-96...
  • Page 198 1) Check if the pick up/ forward/ retard roller is contaminated or worn out. Replace the defective roller. 2) Check if each sensor is working properly. 3) Check if there is any jammed paper in the path. Remove it. 4) When loading the paper, adjust the paper guide. 4-97 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 199 2) Check if the MP empty sensor and MP empty actuator are assembled correctly. 3) If the MP empty sensor or MP empty actuator is defective, replace it. 4) If the problem persists, replace it. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-98...
  • Page 200 1) Check if the feed sensor connector is connected properly. 2) Check if the Regi. roller is contaminated or worn out. 3) Check if there are any obstacles or contamination in the paper path. 4-99 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 201 1) Check if the exit actuator works normally. 2) Check if the exit motor and duplex clutch works normally and its connector is connected properly. 3) Check if there are any obstacles or contamination in the duplex path. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-100...
  • Page 202 ► Troubleshooting method 1) Check if the duplex clutch works normally and its connector is connected properly. 2) Check if the Regi. actuator works normally. 3) Check if the Regi. roller pressure is normal. 4-101 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 203 Too much paper in output bin tray. Remove printed paper. ► Symptom The paper is full on the output bin. ► Troubleshooting method 1) Remove the paper on the output bin. 2) Check if the bin full sensor connector is connected properly. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-102...
  • Page 204 4) Picture3 — No.1 : Open the front cover. Check if the message is changed when pushing the mirco switch. 5) If the micro switch does not work normally, check that its lever is deformed. If it is defective, replace it. 4-103 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 205 2) Picture1 — No.1 : If the relay connector of the rear cover is broken, replace it. 3) Picture2 — No.1 and 2 : Check if the harness connecting the relay connector is defective. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-104...
  • Page 206 Can not get the authentication from server after setting up to 802.1x on SWS. Can not access to network. ► Troubleshooting method Check if the Authentication method is selected properly. Check if the User Name/Password is entered properly. 4-105 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 207 1) Open the rear cover. Lift up the right side and release the rear cover. 2) Check if the Actuator Cam Photo sensor is assembled correctly. 3) If there is no problem, remove 4 screws. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-106...
  • Page 208 4. Alignment and Troubleshooting 4) Lift up the both levers. Then take off the fuser unit. 5) Check if the exit sensor is assembled correctly. 6) Check if the photo sensor harness is connected correctly. 4-107 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 209 8) If there is no problem for above steps, assemble and reinstall fuser unit. Then turn the machine on. 9) If the same error persists, install the firmware again. 10)If the same error persists, replace the fuser unit with new one. 11) If the same error persists, replace the main board. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-108...
  • Page 210 2) Open the rear cover. Lift up the right side and release the rear cover. 3) If there is no problem, remove 4 screws. 4) Lift up the both levers. Then take off the fuser unit. 4-109 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 211 6) If there is no problem for above steps, assemble and reinstall fuser unit. Then turn the machine on. 7) If the same error persists, you cut the fusible resistor by the nippers. 8) If the same error persists, replace the main board. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-110...
  • Page 212 2) Open the rear cover. Lift up the right side and release the rear cover. 3) If there is no problem, remove 4 screws. 4) Lift up the both levers. Then take off the fuser unit. 4-111 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 213 6) Measure the LAMP-HALOGEN resistance value from the center and both sides. Check if it has the continuity. 7) Check if the Draw-connector harness is correct. Check its color. 8) Check if 2 thermistor connectors are connected properly. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-112...
  • Page 214 12)Check if the voltage in user environment is in this range (80V ~ 140V, 160V ~ 260V). 13)If there is no problems for above steps, update the firmware. 14)Replace the FDB. If the problem persists, replace the main board. 4-113 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 215 2) Open the rear cover. Lift up the right side and release the rear cover. 3) If there is no problem, remove 4 screws. 4) Lift up the both levers. Then take off the fuser unit. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-114...
  • Page 216 8) Remove the thermistor. Check if the thermistor has curled as shown below. If there is any contamination on the film, clean it. CAUTION Be careful not to be scratched or curled the film. 4-115 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 217 10)Remove the FDB. Check the Triac short on FDB. Measure the transistor resistance for each terminal. If there is any problem, replace the FDB. 11) If the problem persists, replace the main board. If the fuser unit is damaged, replace it with new one. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-116...
  • Page 218 7) Reconnect the LSU harness and then execute the LSU motor test again. 8) If the LSU motor is not operated, replace the LSU. 9) If the LSU motor is not operated after replacing the LSU, replace the main board. 4-117 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 219 7) Reconnect the LSU harness and then execute the LSU motor test again. 8) If the LSU motor is not operated, replace the LSU. 9) If the LSU motor is not operated after replacing the LSU, replace the main board. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-118...
  • Page 220 Remove the foreign matter of the exposure window. unit frame. If the fuser is defective, voids occur periodically at the top Open the rear cover. Reinstall the fuser unit. of a black image. 4-119 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 221 If a black image is partially broken, the transfer voltage is • abnormal or the transfer roller’s life has expired. Clean the inside of the set against the paper particles • and foreign matter in order not to cause the trouble. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-120...
  • Page 222 2) Check if the transfer roller Assy has any wrong part. The springs are damaged. • 3) Replace the transfer roller Assy. The transfer roller is improperly installed. • 4-121 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 223 The life of the imaging unit has been expired Replace the imaging unit. The life of the transfer roller has been expired. Replace the transfer roller. 10) Stains on back of page Description : The back of the page is stained. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-122...
  • Page 224 Reinstall the imaging unit. Print 10 sample pages for test. 2) If the problem persists, replace the imaging unit. The contact between imaging unit and transfer roller is bad. Check if the imaging unit and transfer roller are installed properly. 4-123 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 225 Check and Cause Solution SMPS board is defective. Replace the SMPS board. OPE harness or OPE board is defective. 1) Check the OPE harness connection. 2) If the OPE board is defective, replace it. Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-124...
  • Page 226 C R UM MOTOR R EGI MOTOR TEMP& ASE TTE NETWOR K C R UM MOTOR HUMIDIT SO C KET USE R TEMP TAPLER WIR ELESS C R UM MOTOR LUTC H TION ITEMS Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 227 5. System Diagrams 5.2. Connection Diagram1 & & & Main Board & & Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 228 REAR Co ve r P WM_REAR_FAN2 P WM_REAR_FAN2 Bin _Fu ll S e n s o r DGND Op e n S e n s o r FB_REAR_FAN2 FB_REAR_FAN2 0604-001325 n S ENS _BIN_FULL Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 229 5. System Diagrams 5.4. Connection Diagram3 Main board & & Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 230 DGND P GND DGND +24V 24VS 1 +24V 24VS 1 BLDC_MAIN_DIR CW/CCW BLDC_MAIN_CLK BLDC n BLDC_MAIN_READY READY BLDC_MAIN_EN BLDC MAIN BLDC_MAIN_BRAKE BRAKE DGND P GND DGND P GND 24VS 1 +24V 24VS 1 +24V Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 231 M2 short). Tweezers Spring Hook Standard : For general home use, small type. Standard : For general use Cotton Swab Software (Driver) installation CD ROM Standard : For general home use, for medical service. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 232 IP addresses to client hosts. Dual Inline Memory Module (DIMM), a small circuit board that holds memory. DIMM stores all DIMM the data within the machine like printing data, received fax data. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 233 Hard Disk Drive (HDD), commonly referred to as a hard drive or hard disk, is a non-volatile storage device which stores digitally-encoded data on rapidly rotating platters with magnetic surfaces. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 234 As most faxes consist mostly of white space, this minimizes the transmission time of most faxes. Modified Modified READ (MMR) is a compression method recommended by ITU-T T.6. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 235 Resolution resolution. Server Message Block (SMB) is a network protocol mainly applied to share files, printers, serial ports, and miscellaneous communications between nodes on a network. It also provides an authenticated Interprocess communication mechanism. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 236 (WAP) and any wireless laptop or WPA-PSK desktop devices. WPA-PSK generates a unique key for each session between a wireless client and the associated WAP for more advanced security. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 237 XML Paper Specification (XPS) is a specification for a Page Description Language (PDL) and a new document format, which has benefits for portable document and electronic document, developed by Microsoft. It is an XML-based specification, based on a new print path and a vector-based device-independent document format. Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 238 6. Reference Information 6.3. The Sample Pattern for the Test The life of the toner cartridge and the printing speed are measured using the pattern shown below. ISO 19752 standard pattern Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 239 Front: 326 mm (enough space so that the paper tray can be removed) • Back: 100 mm (enough space for ventilation) • Right: 100 mm (enough space for ventilation) • Left: 100 mm (enough space for ventilation) Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 240 6. Reference Information 6.5. Document Revision List Version Date Page Description 1.00 25/Apr/2011 Release 1.01 27/Dec/2016 P.6–10 Add Document Revision List P.2–9 Add note for production suspension of the finisher and mailbox. 6-10 Copyright© 1995-2016 SAMSUNG. All rights reserved.
  • Page 241 E.Asia, W.Asia, https://gspn2.samsungcsportal.com China, Japan N.America, S.America https://gspn3.samsungcsportal.com This Service Manual is a property of Samsung Electronics Co.,Ltd. © 2016 Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under All rights reserved. applicable International and/or domestic law.

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Ml-501 seriesMl-451 nd seriesMl-501 nd series

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