Samsung ML-2571N Service Manual
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Samsung ML-2571N Service Manual

Ml-2500 series
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SERVICE

LASER PRINTER

ML-2571N
LASER PRINTER
ML-2500 Series
ML-25 10/XAA
Basic Model : ML-2571N
Manual
The keynote of Product
- Speed : 25ppm (Ltr) / 24ppm(A4), 600dpi
- Paper Path : MPF Type Cassette
- Emulation : SPL (ML-2510)
PCL (ML-2570/ML-2571N)
- Processor : 150MHz Jupiter4e CPU
400MHz SPGP V
3
- Memory : ML-2510(SDRAM, 8MB),
ML-2570/2571N(SDRAM, 32MB)
- MP Cassette : 250 pages / Face Down
(100 pages)
- Fuser Design : Lamp Type
- I/O : ML-2510(USB1.1+IEEE 1284),
ML-2570/2571N(USB2.0+IEEE 1284)
- Machine Life : 50K(pages)
CPU

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Summary of Contents for Samsung ML-2571N

  • Page 1: Laser Printer

    LASER PRINTER ML-2500 Series ML-25 10/XAA Basic Model : ML-2571N SERVICE Manual LASER PRINTER The keynote of Product - Speed : 25ppm (Ltr) / 24ppm(A4), 600dpi - Paper Path : MPF Type Cassette - Emulation : SPL (ML-2510) PCL (ML-2570/ML-2571N)
  • Page 2 Contents 1. Precautions 1.1 Safety Warning 1.2 Safety Caution 1.3 ESD Precautions 2. Product Specification 2.1 Product Overview 2.2 Specifications 2.3 Model Comparison Table 2.4 ACCESSORY 3. System Overview 3.1 System Outline 3.2 H/W Structure and Descriptions 3.3 S/W Structure and Descriptions 3-23 3.4 Initial Product Installation 3-27...
  • Page 3 Continued 5. Disassembly and Reassembly 5.1 General Precautions on Disassembly 5.2 Disassembly and Reassembly 6. Troubleshooting 6.1 Checking Symptoms 6.2 Bad discharge 6.3 Malfunction 6.4 Bad software environment 6-13 6.5 Bad Image 6-17 7. Exploded Views & Parts List 7.1 Exploded Views and Parts List 8.
  • Page 4 Continued 11. Reference Information 11.1 Troubleshooting Tools 11-1 11.2 Acronyms and Abbreviations 11-2 11.3 Selecting printer locations 11-4 11.4 Sample Tests Patterns 11-5 12. Circuit Description 12.1 Engine Controller 12-1...

  • Page 5: Safety Warning

    Warning >> Never operate or service the printer with the protective cover removed from Laser/Scanner assembly. The reflected beam, although invisible, can damage your eyes. When using this product, these basic safety precautions should always be followed to reduce risk of fire, electric shock, and injury to persons. Service Manual Samsung Electronics...

  • Page 6: Safety Caution

    (12) Turn off the power and take off the plug when smoke, strange smell, or sound from the machine. If you keep using it, a fire can be occurred. (13) Do not insert steel or metal piece inside/outside of the machine. Do not put steel or metal piece into a ventila- tor. An electric shock could happened. Service Manual Samsung Electronics...

  • Page 7: Handling Precautions

    (7) Be careful not to change the location of small parts such as screws when assembling and disassembling. (8) Remove dust or foreign matters completely to prevent fire of tracking, short, or etc. (9) After finished repair, check the assembling state whether it is same as before the repair or not. Service Manual Samsung Electronics...

  • Page 8: 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. Service Manual Samsung Electronics...

  • Page 9: Product Overview

    400MHz, 32Mbytes SDRAM 1K(initial), 3K(sailes) USB 1.1 (Compatible with USB 2.0) + IEEE 1284 Parallel : ML-2510 USB 2.0 + IEEE 1284 Parallel : ML-2570, ML-2571N 250pages feeding, 100pages Face Down 2.2 Specifications Product Specifications are subject to change without notice. See below for product specifications.
  • Page 10 Cleaning Mode : Not Support Service Mode : Press the Demo Key when Power on(F/W Download) ML-2510 model : I/O Support(USB 1.1 + IEEE 1284 Parallel port) ML-2570/2571N model : I/O Support(USB 2.0 + IEEE 1284 Parallel port) Service Manual Samsung Electronics...

  • Page 11: Electrical Specification

    Starter: 1,000 Pages(initial) A4 Size, ISO 19752 Pattern Running : 3,000 Pages(sailes) Standard Coverage SIMPLEX Developing Method Non-magnetic Contact Developing Charging Method Conductive Roller Charging Toner Empty sensor Ozone 0.1PPM or less Cartridge Style Single cartridge Service Manual Samsung Electronics...

  • Page 12: Paper Handling Specifications

    110 X 220(4.33 X 8.66") C5 Env. 162 X 229(6.38 X 9.01") C6 Env. 114 X 162(4.49 X 6.38") Transparency(OHP) A4 or Letter Label paper A4 or Letter 2.2.6.2 Input capacity Item Descriptions Cassette 250 sheets 2.2.6.3 Output capacity Service Manual Samsung Electronics...

  • Page 13: Model Comparison Table

    Duty Cycle, Monthly up to 5000 prints per month up to 5000 prints per month up to 15,000 prints per month Hardware Software Processor Type Samsung Jupiter 4e 150MHz Samsung SPGP V3 400MHz Samsung SPGP V3 400MHz Memory 8MB(8MB) 32MB SDRAM(32MB) 32MB SDRAM(32MB) Win9X/ME/2000/XP/Linux7/NT4.0/Mac OS8.6...

  • Page 14: Accessory

    *. These model are as yet undeveloped. Acessory Code Quantity INA-ACCESSORY JC99-01993J S/W APPLICATION-CD JC46-00287A COVER-M_PAPER (PAPER COVER) JC63-01119A MANUAL-(CARD)WARRANTY CARD JC68-00690A Acessory Code Quantity INA-ACCESSORY JC99-01986C S/W APPLICATION-CD JC46-00291A COVER-M_PAPER (PAPER COVER) JC63-01119A MANUAL-(CARD)WARRANTY CARD JC68-00690A Service Manual Samsung Electronics...

  • Page 15: System Outline

    System Overview 3. System Overview 3.1 System Outline Paper Path Layout BIN PATH MAIN PBA SMPS HVPS Service Manual Samsung Electronics...
  • Page 16 System Overview Unit Layout Panel HVPS Motor SMPS Main PBA Service Manual Samsung Electronics...
  • Page 17 Fuser/Exit 3.1.4 FUSER The fuser is consisted of the Heat Lamp,Heat Roller,Pressure Roller,Thermister and Thermostat. It adheres the toner on the paper with pressure and heat to complete the printing job. - Life Cycle : 50K(pages) Service Manual Samsung Electronics...
  • Page 18 - 3st protecting device : Thermostat cuts off the power . Safety device - The power of Fuser is cut-off after front cover is open. - The overheating safety device for customer - The surface temperature of the Fuser Cover is under 80 Service Manual Samsung Electronics...
  • Page 19 LSU to arrange the its margin on the paper. The one side of the polygon mirror is one line for scanning.. OPC Drum Photo Diode Polygon Mirror Polygon Motor Motor Driver LD Driver circit LD(Laser Diode) Protector panel Service Manual Samsung Electronics...

  • Page 20: Toner Cartridge

    - Management of disusable toner: Collect the toner by using electric static (Clenerless Type- No disusable toner) - OPC Drum protecting Shutter: None - Classifying device for toner cartridge: ID is classified by interruption of the frame channel. Service Manual Samsung Electronics...

  • Page 21: H/W Structure And Descriptions

    Main Control operate its full function on the Main B'd and CPU control Controller ASIC. 3.2.1.2 CPU ML-2510 Use 32Bit RISC Processor of Jupiter4e, which is built in Memory, while ML-2570/2571N sue SPGP V3, They control system by operating operation block of the system. Service Manual Samsung Electronics...
  • Page 22 - Left, Right Margin : 4.23 ° 3 mm 7) CRU(Toner Cartridge)Life : 3,000pages Printing(A4, 5% Pattern Printing) 8) First Print Out Time : within 9sec( Standby ) 9) Warming up time : within 15sec (Ambient : 25° Service Manual Samsung Electronics...

  • Page 23: Main Board

    Main Board control to send Current Imagedml Video Data to LSU to print and have motor Driving and Circuit for the current driving and also include Paper Exit Sensor, Cover Open s/w, panel s/w. < ML-2510 > < ML-2570/2571N > Service Manual Samsung Electronics...
  • Page 24 - It connects a HVPS. DCU connector(CN1) - It interface a DCU-JIG USB connector(CN6) - It interface the computer. Network Connector(ML-2571N only) - It interface the network IEEE 1284 Parallel Connector - It interface the computer. DC To DC Converter - It supplies the core sltage to CPU by Converting 3.3V to 1.3V for ML-2570/2571N...
  • Page 25 - SDRAM controller supports PC-100 and PC-133 SDRAM running at 75MHz - Up to 32MB per bank. - Support for SDRAM configurations including programmable column address - Programmable refresh interval 8. Interrupt Controller (INTC) - FIQ or IRQ mode operation selectable - Programmable Interrupt Enable/Disable Service Manual 3-11 Samsung Electronics...
  • Page 26 17. Miscellaneous - Mux controlled 24 GPI, 28 GPO & 5 GPIO ports . - Mutual exclusive GPO/GPIO ports control by the port control enable register - Programmable Bus Master Priority. - Project code added. Service Manual 3-12 Samsung Electronics...
  • Page 27 ADCIN3-0 TEST ( adc1275x _ pc) OM2-0 nRESET PWM3-0 PW M PL L ( pl l 2096x , pl l 2073x) CAP2-0 CL O C K & RESE T MOTPAT5-0 M OT ORC SCLK EXTCLK Service Manual 3-13 Samsung Electronics...

  • Page 28: Engine Controller

    DRAM : It is used as Swath Buffer, System Working Memory Area, etc. when printing. It stores Font List, compressed into Flash memory, on DRAM and uses it as PCL font in case of model for export. - Capacity : 32M Byte(STD/MAX) - Type : SDRAM 100MHz/133MHz, 16bit Service Manual 3-14 Samsung Electronics...
  • Page 29 System Overview 3.2.3.5 SPGPv3 Internal Block Diagram Service Manual 3-15 Samsung Electronics...

  • Page 30: Flash Memory

    Serial Page Access Time : 50ns (Min) 3.2.3.7 SDRAM It is used as swath buffer, system working memory area, etc. while Printing. Capacity : The 32M Byte is for this model (32M :Printing System Working Memory Area ) Service Manual 3-16 Samsung Electronics...
  • Page 31 The solenoid consists of two used for paper pick-up and MP signal. D4 bit of CPU turns it on/off, and its driving time is 300ms. The diode protects the drive TR from the pulse (noise)generated by de-energizing operation of solenoid. Service Manual 3-17 Samsung Electronics...
  • Page 32 AMPS part, which supplies the DC power for driving the system, and the AC heater control part, which supplies the power to fuser. SMPS has two output channels. Which are 5V and +24V Pin Signal <CON2> Pin No Pin Name +24VS2 +24V +24VS1 +24VS1 DGND DGND P_REGI FUSER ON Service Manual 3-18 Samsung Electronics...
  • Page 33 . Running Current : under 40A PEAK (AT 25 , COLD START) under 50A PEAK (In other conditions) . Rising Time : within 2Sec . Falling Time : over 20ms . Surge : Ring Wave 6KV-500A (Normal, Common) Service Manual 3-19 Samsung Electronics...
  • Page 34 - Output Voltage Fluctuation range: PWM Control - Input contrast of the output stability degree : 5 % or less - Loading contrast : 5 % or less - Output Voltage Rising Time : 50 ms Max Service Manual 3-20 Samsung Electronics...
  • Page 35 - Output Voltage Rising Time : 50 ms Max - Output Voltage Falling Time : 50 ms Max - Output Loading range : 10 ~ 1000 - Output Control Signal (BIAS-PWM) : the CPU is HV output when PWM is low. Input Service Manual 3-21 Samsung Electronics...

  • Page 36: Fuser Ac Power Control

    1) Triac (THY1) feature :16A, 600V SWITCHING 2) Phototriac Coupler (PC3) . Turn On If Current : 16mA . High Repetive Peak Off State Voltage : Min 600V Service Manual 3-22 Samsung Electronics...

  • Page 37: S/W Structure And Descriptions

    - Control the Pick-Up, Feeding and Discharging of Paper - Control the LSU - Control the HVPS for the Developer Process - Control the Temperature of Fixing unit Controlling selection to here is added. - Second Cassette Feeder(SCF) : N/A Service Manual 3-23 Samsung Electronics...
  • Page 38 Main F/W of the printer controller Initial Engine F/W Device Units Fixing Unit Interface Control Module HVPS Engine Main Control Module Fan Unit Motors Solenold & Sensing & Unit Control Module Clutch Hardware Devices & Mechanical Device Service Manual 3-24 Samsung Electronics...
  • Page 39 The third one is a fan control function that controls the fan unit. And the last one sets the flag that describes the present status of each sensor. Service Manual 3-25 Samsung Electronics...
  • Page 40 Get A DC Value (Tempe rature, .. ) Control the fixing unit & Check error condition for the fixing unit Control the fan unit Get status value of each sensor & Set present status flag of each sensor Service Manual 3-26 Samsung Electronics...

  • Page 41: Initial Product Installation

    Remove the printer and all accessories from the packing carton. Make sure that the printer has been packed with the following items: 3.4.2 Installing the Toner Cartridge 1. Grasp the front cover and pull it toward you to open. Service Manual 3-27 Samsung Electronics...
  • Page 42 2. Remove the toner cartridge from its bag and remove the paper covering the cartridge. 3. Gently shake the cartridge from side to side to distribute the toner evenly inside the cartridge. 4. Locate the cartridge slots inside the printer, one on each side. Service Manual 3-28 Samsung Electronics...
  • Page 43 5. Unfold the toner cartridge handle and grasp it. Insert the cartridge in the printer until it snaps into place. 6. Close the front cover. Make sure that the cover is securely closed. If the cover is not firmly closed, printing errors may occur when you print. Service Manual 3-29 Samsung Electronics...

  • Page 44: Loading Paper

    2. Prepare a stack of paper for loading by flexing or fanning them back and forth. Straighten the edges on a level surface. 3. Load paper with the print side facing up. Make sure that all four corners are flat in the tray. Service Manual 3-30 Samsung Electronics...

  • Page 45: Connecting A Printer Cable

    2. Plug the USB printer cable into the connector on the back of the printer. 3. Connect the other end of the cable to the USB port on your computer. See your computer User’s Guide if you need help. Service Manual 3-31 Samsung Electronics...

  • Page 46: Turning The Printer On

    Print a demo page to make sure that the printer is operating correctly. 1. Press and hold down the Cancel button on the control panel for about 2 seconds to print a demo page. 2. The Demo page shows the printer’s current configuration. Service Manual 3-32 Samsung Electronics...

  • Page 47: Installing Printer Software

    Pentium II 933 Ghz or higher Window 98/Me/2000 64 MB or higher Window XP 128 MB or higher Free Disk Space Window 98/Me/2000 300 MB or higher Window XP 1 GB or higher Internet Explorer 5.0 of higher Service Manual 3-33 Samsung Electronics...

  • Page 48: Sample Pattern

    4.1.1 Printing a Demo Page Print a demo page or a configuration sheet to make sure that the printer is operating correctly. 1) Hold down the Cancel button for about 2 seconds to print a demo page. Service Manual Samsung Electronics...
  • Page 49 Alignment and Adjustments 2) The Demo page or the configuration sheet shows the printer’s current configuration. Service Manual Samsung Electronics...

  • Page 50: Control Panel

    Ready mode. This may take some time depending on the size of the print job. In Manual Feed mode, you can’t cancel the print job by pressing this button. Service Manual Samsung Electronics...

  • Page 51: Consumables And Replacement Parts

    Environmental conditions and actual use will vary these factors. The cycle period given below is for reference only. COMPONENT REPLACEMENT CYCLE Pick-up Roller 50,000 Pages Transfer Roller 50,000 Pages Fuser 50,000 Pages Toner Cartridge 3,000 Pages(Sales), 1,000 Pages(Initial) Service Manual Samsung Electronics...

  • Page 52: Periodic Defective Image

    Black spot and image ghost, H/R : 24.75 Pressure Roller 75.4mm black spot on the backside Feed Roller BIN PATH Transfer Roller OPC Drum Heat Roller Charge Roller Pressure Roller Supply Roller Feed Roller Developing Roller Service Manual Samsung Electronics...

  • Page 53: How To Use Dcu

    COVER OPEN ERROR NO PAPERR PAPER JAM 0 PAPER JAM 1 PAPER JAM 2 LSU NOT READY DIAGNOSTIC DOWN SHIFT STOP MODE ENTER TO ENTER DIAGNOSTIC MODE, PUSH THREE BUTTONS SIMUL ANEOUSL AND TURN THE PRINTER POWER ON. Service Manual Samsung Electronics...
  • Page 54 The front part of paper is jammed just after passing through the discharge sensor. Out Bin Full The Out bin is filled with paper. LSU Not Ready LSU Scanner Motor not ready or Hsync signal not output. Service Manual Samsung Electronics...
  • Page 55 [Up] button to Check LD. LD is functioning and the middle button is on. If the LD is normal, all LEDs are on. Pickup clutch on The Solenoid in the printer is in operation. To stop the operation, Press the button [shift] and [Enter] together. Service Manual Samsung Electronics...
  • Page 56 Indicates the function of the Fan, same method of the code ‘07’. Manual Pickup Test : Indicates the function of th Manual Pickup, same method of the code ‘07’. Manual Sensor Test : Indicates the function of the Manual Sensor, same method of the code ‘07’. Service Manual Samsung Electronics...
  • Page 57 READY Mode, and '88' shows in the DCU. In this mode, without any detection, the printer begins printing(trial printing and data from the PC). It is convenient to use this mode when the engine malfunction is detected in the control board. Service Manual 4-10 Samsung Electronics...

  • Page 58: Paper Path

    4) The paper passed the paper exit sensor moves out from the set. (Jam 2 occurs sometime after if the tailing edge of the paper is not coming out from the set after the leading edge of paper passes the paper exit sensor.) BIN PATH BIN PATH BIN PATH Service Manual 4-11 Samsung Electronics...

  • Page 59: Clearing Paper Jams

    (located underneath the inner cover). It is hot and could cause burns! • The top and inner cover themselves may also be hot due to the heat roller. Allows the printer to cool before opening the covers. Service Manual 4-12 Samsung Electronics...
  • Page 60 Alignment and Adjustments 4. Loosen the jammed paper if it is caught in the heat roller. Then gently pull the jammed paper out. 5. Close the inner cover and top cover. Printing automatically resumes. Service Manual 4-13 Samsung Electronics...

  • Page 61: In The Paper Feed Area

    2. Open and close the front cover to resume printing 2. Open and close the front cover to resume printing the document from failed pages. the document from failed pages. Service Manual 4-14 Samsung Electronics...

  • Page 62: Around The Toner Cartridge

    4. If necessary, reinsert the manual tray. underside of the toner cartridge. Use the handle on the cartridge to avoid 5. Replace the toner cartridge and close the front touching this area. cover. Printing automatically resumes. Service Manual 4-15 Samsung Electronics...

  • Page 63: Tips For Avoiding Paper Jams

    • Clean the inside of the printer • Adjust the print resolution from the printer properties • Ensure that the Toner Save mode is off • Clear general printing problems • Install a new toner cartridge, and check the print quality Service Manual 4-16 Samsung Electronics...

  • Page 64: General Precautions On Disassembly

    3. Unplug the power cord. 4. Use a flat and clean surface. 5. Replace only with authorized components. 6. Do not force plastic-material components. 7. Make sure all components are in their proper posi- tion. Service Manual Samsung Electronics...

  • Page 65: Disassembly And Reassembly

    1.For separating only cassette tray,open the tray. 2.Hold the set and lift up the hook on the left bottom toward the arrow direction.Separate the cassette tray by pulling it out to the left as shown as below. Cassette Tray Service Manual Samsung Electronics...
  • Page 66 Jam Cover to the right side. Jam Cover SMPS Cover (Rear Cover) Notice : Remove the SMPS Cover with carefulness That the Fan-DC Harness is not hooked on SMPS Cover. Service Manual Samsung Electronics...
  • Page 67 Cover and carefully lifting it up. Main Cover Notice : To remove the Main Cover, make sure the right side Power Switch and left side Connectors doesn't get jammed to the Main Cover. Service Manual Samsung Electronics...
  • Page 68 2. Remove the 1 screw and release the Harness from - Separate the Front Cover (Refer to 5.2.1) the Cap-SMPS and remove it, as shown below. - Separate the SMPS Cover (Refer to 5.2.3) - Separate the Main Cover (Refer to 5.2.4) Cap-SMPS Harness Service Manual Samsung Electronics...
  • Page 69 -Separate the Main cover.(Refer to 5.4) HVPS Sheet 3.Separate the HVPS with HVPS ground from the 4.Remove the connector from the separated HVPS. frame by releasing the remaining 3 screws. (Screw x 3:Gold_M3,6003-000269) HVPS Ground HVPS Service Manual Samsung Electronics...
  • Page 70 Fuser Gear, and Feed Gear can be removed from the frame. RX Drive Fuser Gear RDCN Gear OPC Gear Feed Gear Note: Please, be careful not to touch the protruding 4 screws at the outside of the RX drive. Service Manual Samsung Electronics...
  • Page 71 1.Before Disassembling 2.Separate 2 connectors from the SMPS and the Main -Separate the font cover.(Refer to 5.2) PBA as shown as below. -Separate the SMPS cover.(Refer to 5.3) -Separate the Main cover.(Refer to 5.4) Thermister Fuser Service Manual Samsung Electronics...
  • Page 72 Note : Under the condition that the fuser is connected to the frame,the exit roller F/Down can be separat- ed.However,be careful that the Roller_Main,the Roller_FR,and F/Down Holder could get into the inner frame due to the spring’ action. Service Manual Samsung Electronics...
  • Page 73 9.After separating the CBF harness connected to the 10.Separate the Cover-M by releasing 2 screws as left/right side of the halogen lamp, release 2 screws shown as below. from the halogen lamp. (Screw x 2 : Black_M3, 6003-000196) (Screw x 2:Black_M3,6003-000196) Cover-M Service Manual 5-10 Samsung Electronics...
  • Page 74 2.Disconnect all connectors except the connector -Separate the font cover.(Refer to 5.2) which connects the SMPS to the Main PBA. -Separate the SMPS cover.(Refer to 5.3) -Separate the Main cover.(Refer to 5.4) Thermister Clutch Motor HVPS Fuser Service Manual 5-11 Samsung Electronics...
  • Page 75 5. For removing only Main PBA, perform the follows in order : separate the SMPS cover (Refer to the 5.3), release 3 screws, separate the main PBA connector, and then take out the main PBA. (Screw x 3 : Gold_M3, 6003-000269) Main PBA Service Manual 5-12 Samsung Electronics...

  • Page 76: Paper Path Frame

    -Separate the SMPS cover.(Refer to 5.3) ground and harnesses. -Separate the Main cover.(Refer to 5.4) (Screw x 4:Silver_M3,6003-000196) -Separate the Fuser.(Refer to 5.8) -Separate the Engine shield.(Refer to 5.9) Paper Path Frame Service Manual 5-13 Samsung Electronics...
  • Page 77 2.While pressing the hooks on the left/right side of the front cover, and then take out the toner cartridge. pick-up housing B, pull out the pick-up housing U as shown as below.Then,replace the sponge. Housing B Toner Cartridge Sponge Housing U Service Manual 5-14 Samsung Electronics...

  • Page 78: Checking Symptoms

    Power On - No Power On-Line LED - Power Module error - Main PBA Indicate Refer to On-Line LED Green OK? "Lamp toggle" "Chapter 4.4" Print(test pattern) printing Refer to "Solution Quality is of Image Problem" Nomal? Service Manual Samsung Electronics...

  • Page 79: Basic Check List

    --> Refer to section 6.5 (Page 6-17). 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 Service Manual Samsung Electronics...

  • Page 80: Initial Inspection

    1. Use only paper which is of a suitable quality, weight and size? See the user guide. 4. Check the overall condition of the printer 1. Is the printer properly maintained ? Clean the Paper Transport Passages. Any rollers with dirt surfaces should be cleaned or replaced. Service Manual Samsung Electronics...

  • Page 81: Bad Discharge

    3. Clean with soft cloth dampened with IPA(Isopropyl ter. Alcohol) or water. 4. If the paper feeds into the printer rand Jam 0 occurs, 4. Replace the SMPS, HVPS or Sensor. perform DCU to check feed-sensor of the engine board. Service Manual Samsung Electronics...
  • Page 82 3. Remove the jammed paper after disassembling the fuser : Clean the surface of the pressure roller with dry gauze. • Remove the toner particles stained on the rib. • Check the assemblage and performance of the exit. Service Manual Samsung Electronics...
  • Page 83 2. If there is heavy background, repair it by the ted. background troubleshooting method. 3. The surface of the heat roller with IPA or water 4. Check the warp or separation of the sprint claw and the holder plate claw, and then man- age it. Service Manual Samsung Electronics...
  • Page 84 1. Recommend to use normal paper. 2. The face of paper is curled. 2. How to remove the rolled in the OPC Drum. • Remove the paper while turning the OPC Drum against the ongoing direction. Service Manual Samsung Electronics...

  • Page 85: Malfunction

    Check and Cause Solution DCU Mode : Perform DCU diagnostic code 05. If the DCU Replace LSU. error code 95 is displayed, replace LSU. If you cannot solve the problem after you replace LSU, replace the main board. Service Manual Samsung Electronics...

  • Page 86: Paper Empty

    1. Bending or deformation of the actuator of the paper sen- 1. Replace the defective actuator. sor. 2. The function of the engine board is defective Perform. 2. Replace the engine board. DCU mode : Perform DCU diagnostic code 8. Service Manual Samsung Electronics...

  • Page 87: Cover Open

    Main Control board. Perform DCU Connect. mode : If Error state '64' occurs, Check the related codes of the Cover Open Error 2. Replace the Main Control board or Cover Open S/W. Service Manual 6-10 Samsung Electronics...

  • Page 88: Defective Motor Operation

    1. Replace the power supply cord or SMPS. 2. Check the inferiority of LED-Panel on the front-cover if 2. Replace the control board. the LED of Panel does not appear after normal warming- 3. Replace the LED-panel. Service Manual 6-11 Samsung Electronics...

  • Page 89: Vertical Line Getting Curved

    1. If the supply of +24v is unstable in the Main Control board 1. Replace LSU. linking with LSU, check drive by DCU Mode : LSU Check -05- LSU Motor on. 2. Replace the Main Control board. Service Manual 6-12 Samsung Electronics...

  • Page 90: Bad Software Environment

    4. If the scanner needs to be connected to the printer, 4. Check if the printer cable is directly connected to periph- first the remove the scanner from the PC to see if the eral devices printer is properly working alone. Service Manual 6-13 Samsung Electronics...
  • Page 91 Turn the PC and printer off, and reboot the system to print again. If not solved, double-click the printer in my computer If the regular fonts are not printed this time again. the cable must be defective so replace the cable with new one. Service Manual 6-14 Samsung Electronics...

  • Page 92: Abnormal Printing

    3. Delete the unnecessary files to secure enough (The printing job sometimes stops or due to insufficient space of the hard disk and start printing job again. virtual memory, but it actually comes from the insuffi- cient space of the hard disk.) Service Manual 6-15 Samsung Electronics...

  • Page 93: Spool Error

    Before choosing the document, the menu is still inactive. Or put the document out of the list and repeat the routine as in the above or finish the spool manager. Service Manual 6-16 Samsung Electronics...

  • Page 94: Bad Image

    4. No. 4. : Open the front cover and check odically at the top of a black image. ribs that corresponds to the position of the voids. Remove if found. 5. If the problems are not solved, replace the developer cartridge. Service Manual 6-17 Samsung Electronics...

  • Page 95: Horizontal Black Band

    1, take measures as to replace the develop- er cartridge and try to print out. 5. Clean the inside of the set against the paper particles and foreign matter in order not to cause the trouble. Service Manual 6-18 Samsung Electronics...

  • Page 96: Light Image

    HVPS. in the side of the Developer and charge terminal of HVPS. 3. Replace the HVPS if not solved by the above direction 1 and 2. Service Manual 6-19 Samsung Electronics...

  • Page 97: Uneven Density

    4. Is the movement(Up and Down) of 4. Clean the bushing part of the transfer the transfer roller smooth? roller. 5. Is the HVPS normal? 5. If the problem is still not solved, replace the developer. Service Manual 6-20 Samsung Electronics...
  • Page 98 Digital Printer mal paper or transparencies such as OHP, the software application and after using return- Digital Printer higher transfer voltage is required. ing to the original mode is recommended. Digital Printer Digital Printer Digital Printer Service Manual 6-21 Samsung Electronics...

  • Page 99: Stains On The Face Of Page

    2. If the transfer roller is contaminated, run PC on the face of page will occur. Cleaning Mode Print 2 or 3 times. Digital Printer And perform Self-Test 2 or 3 times to remove contamination. Service Manual 6-22 Samsung Electronics...
  • Page 100 Solenoid is normal.(refer to code 06) 3. If not solved by the above directions 1-2, Replace the engine board. 4. Turn the power off, delete the data of PC and try printing again. Service Manual 6-23 Samsung Electronics...

  • Page 101: Exploded Views And Parts List

    7. Exploded Views and Parts List(ML-2510/XAA) Contents Main Assembly Frame Assembly Fuser Unit Paper Path Assembly RX_Drive...
  • Page 102 Exploded Views & Parts List 7.1 Main Assembly 15-1 15-2...

  • Page 103: Frame Assembly

    Exploded Views & Parts List 7.2 Frame Assembly...

  • Page 104: Fuser Unit

    Exploded Views & Parts List 7.3 Fuser Unit...
  • Page 105 Exploded Views & Parts List 7.4 Paper Path Unit 11-3 11-2 11-1...
  • Page 106 Exploded Views & Parts List 7.5 RX_Drive...
  • Page 107 JC63-01105A COVER-M_SIDE R;ML-2571N,HIPS,2,288,239,- O1060 7.1-2-5 JC63-01103A COVER-M_JAM;ML-2571N,HIPS,2.5,83,222,HB, O1059 7.1-2-6 JC64-00266A KEY-M_ONLINE;ML-2571N,ABS,18.2,HB,-,-,- 7.1-2-7 JC66-01242A ACTUATOR-M_JAM;ML-2571N,PC,-,48.6,75.2,- O1077 7.1-2-8 JC67-00167A LENS-M_LED;ML-2571N,PMMA,TRANSPARENT,L72 7.1-3 JC97-02654A MEA UNIT-COVER FRONT;ML-2571N,SAMSUNG,-, O1118 7.1-3-1 JC63-01104A COVER-M_FRONT;ML-2571N,HIPS,2.5,154.65,3 7.1-3-2 JC63-00617B TRAY-CASSETTE;ML-1610,HIPS,2,277,108,HB, 7.1-3-4 JC63-01112A TRAY-M_EXTENSION S;ML-2571N,HIPS,2.5,38. 7.1-4 JC96-04065A ELA UNIT-LSU;ML-2570,-,-,25PPM,600DPI,SI O1116 7.1-5 JC63-01107A COVER-M_SMPS;ML-2571N,PC/ABS,2,324.6,230 O1062 7.1-6...
  • Page 108 AVAILABLE Drawer# SEC-Code Description & Specification Location Service 7.3-8 JC61-00595A GUIDE-M-INPUT;ML-1710,PET+GF30%,-,-,-,BL 7.3-9 JC66-00600A ROLLER-PRESSURE;ML-1710,SUM24L+LSR+PFA,2 O1067 7.3-10 JC66-01256A ROLLER-HEAT;ML-2571N,AL 5052+ PFA COAT,2 O1088 7.3-11 JC66-01254A GEAR-FUSER;ML-2571N,PPS(OFL4036),0.8,45, O1086 7.3-12 JC61-00888A BUSH-M-HR L_R2;SCX-4920N,PPS(RBA313N),25 O1035 7.3-13 JC61-00887A BUSH-M-HR R_R2;SCX-4920N,PPS(RBA313N),25 O1034 7.3-14 4713-001211 LAMP-HALOGEN;115V,-,750W,-,-,-,8X284MM O1012 7.3-15...
  • Page 109 Location Service 7.5-6 JC72-00825A PMO-IMPELLER_DRV;ML-6200,NYLON66,BLK,-,- O1103 7.5-7 JC66-00804A GEAR-RDCN 139/83;ML-1610,POM,0.5/0.6,139 O1069 7.5-8 JC66-00805A GEAR-RDCN 113/83;ML-1610,POM,0.6/0.6,113 O1070 7.5-9 JC66-01244A GEAR-FUSER DRIVER;ML-2571N,POM,0.6/0.8,8 O1078 7.5-10 JC66-00806A GEAR-OPC DR 76/38/29;ML-1610,POM,0.6/0.8 O1071 7.5-11 JC60-00023A SPACER-GEAR;ML-2571N,POM, M90-44,17,-,-, O1028 #N/A 0201-001162 ADHESIVE-CYA;LOCTITE403,NTR,1250,20G #N/A 0201-001183 ADHESIVE-AA;ARON ALPHA #202F,NTR,100,20G #N/A 0201-001235 ADHESIVE-TS;DEH-390D,RED,400,-...
  • Page 110 Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service #N/A 2007-001139 R-CHIP;7.5Kohm,1%,1/10W,TP,1608 #N/A 2007-007521 R-CHIP;14.7Kohm,1%,1/10W,TP,1608 #N/A 2007-008567 R-CHIP;15.4Kohm,1%,1/10W,TP,1608 #N/A 2011-001011 R-NET;10Kohm,5%,1/16W,L,CHIP,8P,TP,3.2x1 #N/A 2011-001094 R-NET;39OHM,5%,1/16W,L,CHIP,8P,TP #N/A 2011-001334 RC-NETWORK;1K/5.1K/39ohm,10%,150pF,-,6V, #N/A 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 #N/A...
  • Page 111 JC61-01263C PLATE-MP;ML-2571N,HIPS,2.5,278.2,123,V.W O1040 #N/A JC61-01281A BRACKET-P-BAR_PICK_UP;ML-1610,SECC,T1.0, #N/A JC61-01442A PLATE-LSU_SLIT_B;SCX-6345N/XRX,STSC 301, #N/A JC61-01464A BLADE-P_SUS;ML-2010,SUS301-CSP 1/2H T0.0 #N/A JC61-01709A PLATE-KNOCK_UP;ML-2571N,PC/ABS,T2.5,W82. O1041 #N/A JC61-01713A STOPPER-PICK_UP R;ML-2571N,POM,-,D17,L20 O1044 #N/A JC61-01714A STOPPER-PICK_UP L;ML-2571N,POM,-,D17,L20 O1045 #N/A JC61-01715A PLATE-P_IDLE HOLDER;ML-2571N,SECC,T1,-,2 O1046 #N/A JC61-01718A HOLDER-IDLE ROLLER;ML-2571N,POM,-,26,12. O1049 #N/A JC61-01719A HOLDER-EXIT R;ML-2571N,PC,1.5,10,21,BLAC...
  • Page 112 #N/A JC66-00823A DRUM-OPC;ML-1610,AL A30 OR A60,-,24,248, #N/A JC66-00825A ROLLER-SUPPLY;ML-1610,SILICON FOAM,D11.5 #N/A JC66-00827A SHAFT-RDCN;ML-1610,SUS303,L24,D3,NTR,-,- #N/A JC66-00828A ROLLER-CHARGE;ML-1610,NBR+ECO,D12,L230,N #N/A JC66-00851A ROLLER-DEVE;ML-1610,CONDUCTIVE NBR,D14.0 #N/A JC66-01245A GEAR-PICK UP A;ML-2571N,POM,0.8,47,-,WHI O1079 #N/A JC66-01246A GEAR-PICK UP B;ML-2571N,POM,0.8,47,-,WHI O1080 #N/A JC66-01251A ROLLER-FEED;ML-2571N,SUM22+NI+EPDM,5/17. O1083 #N/A JC66-01252A SHAFT-FEED;ML-2571N,POM,53.8,8,NTR,-,- O1084 #N/A JC66-01253A ROLLER-PICK_UP IDLE;ML-2571N,POM,31.2,-,...
  • Page 113 AVAILABLE Drawer# SEC-Code Description & Specification Location Service #N/A JC72-01350A PPR-FILM OPC;ML-1610,URETHANE SHEET,NTR, #N/A JC72-01380A SPONGE-COVER L;ML-2571N,POLYURETHANE FOA #N/A JC72-01381A SPONGE-COVER TOP;ML-2571N,POLYURETHANE F #N/A JC72-01383A SPONGE-COVER TOP S;ML-2571N,POLYURETHANE #N/A JC72-10924A PPR-FILM AGITATOR;ML-5000,PET T0.1,NTR,- O1105 #N/A JC72-10925A PPR-FILM SUPPORT AGI;ML-5000,PET T0.3,NT #N/A JC72-20902A PEX-ROLLER F/UP(2);ML-5000A,TEFLON,WHT,-...

  • Page 114: Ml-2510 H/W Block Diagram

    Block diagram 8. Block Diagram 8.1 ML-2510 H/W Block Diagram Service Manual Samsung Electronics...

  • Page 115: Ml-2570/2571N H/W Block Diagram

    Block diagram 8.2 ML-2570/2571N H/W Block Diagram Service Manual Samsung Electronics...

  • Page 116: Ml-2510 Connection Diagram

    Connection Diagram 9. Connection Diagram 9.1 ML-2510 Connection Diagram Service Manual Samsung Electronics...

  • Page 117: Ml-2570/2571N Connection Diagram

    Connection Diagram 9.2 ML-2570/2571N Connection Diagram Service Manual...

  • Page 118: Troubleshooting Tools

    • Spring Hook Standard : For general use • Tweezers Standard : For general home use, small type. • Cotton Swab Standard : For general home use, for medical service. • Software (Driver) installation CD ROM Service Manual 11-1 Samsung Electronics...

  • Page 119: Acronyms And Abbreviations

    Host Based Printing Hard Disk Drive High temperature and high marshy place high voltage HVPS High Voltage Power Supply interface Input and Output integrated circuit Intelligent Drive electronics or Imbedded Drive Electronics Service Manual 11-2 Samsung Electronics...
  • Page 120 Quick Printer Initiating Device Q ty quantity Random Access Memory Read Only Memory Second Cassette Feeder SMPS Switching Mode Power Supply SPGP Samsung Printer Graphic Processor Samsung Printer Language Spool Simultaneous Peripheral Operation Online switch sync synchronous or synchronization Universal Serial Bus WECA...

  • Page 121: Selecting Printer Locations

    • Provide the proper environment : - A firm, level surface - Away from the direct airflow of air conditioners, heaters, or ventilators - Free of extreme fluctuations of temperature, sunlight, or humidity - Clean, dry, and free of dust Service Manual 11-4 Samsung Electronics...

  • Page 122: Sample Tests Patterns

    The life of the toner cartridge, developer cartridge and printing speed are measured with the pattern shown below. The A4 ISO 19752 standard pattern samples are reproduced reduced to 70% of the actual A4 size. A4 ISO 19752 Standard Patterns Service Manual 11-5 Samsung Electronics...

  • Page 123: Circuit Description

    TRIAC. Consequently, the heat lamp is turned off. Special Feature of TRIAC (THY 1): 16A, 600V SWITCHING Phototriac Coupler (PC3) Turn On If Current: 15mA~50mA (Design: 16mA) High Repeive Peak Off State Voltage: Min 600V Service Manual 12-1 Samsung Electronics...

  • Page 124: Service Manual

    5.1K 3.3V 3.3V U1-2 MMSD914T1 FUSER_ON KDS226 LM393D DGND Thermistor 7.5K 14.7K CN1-1 THERM_IN MMBT2222ALT1 470K 10nF 35301-0250 3.3V 10nF KDS226 DGND DGND 3.3V 3.3V DGND 100nF MMBT2222ALT1 5.1K nFUSER U1-2 DGND LM393D DGND DGND Service Manual 12-2 Samsung Electronics...
  • Page 125 The entire diagram of the PWMTIMER is organized as below. PWM TIMER OPERATION is figured out if calculating PHCLK by the value selected by the register setting and the divider. PHCLK is created by count block at the PWM TIMER Service Manual 12-3 Samsung Electronics...

  • Page 126: Motor Driver

    It is three layer filter, and the delay time is 3*System Clock Time. The interface between PVC and LSUC is shown in the picture. LSUC LSU_VDO nHSYNC LSU_VDO nHSYNC PVC_VDO nPSync PVC_TEST_EN nLSYNC PVC_TEST_EN nFSYNC nFSYNC Service Manual 12-4 Samsung Electronics...
  • Page 127 PRDATA[31:0] DAC_OUT APCCON[11:0] nPSync apcOnTime[20:0] apcOffTime[20:0] THER Pmax[9:0] Control Pmin[9:0] Bl ock Ka[14:0] REF[24:0] Kp[15:0] Ki[4:0] CKIN. ADC_EN SEL[1:0] YMAXH[8:0] YMAXL[31:0] YMINH[8:0] ADO_2[9:0] YMINL[31:0] YINITH[8:0] Cont roller YINITL[31:0] KU[5:0] U_VALUE[25:0] SEH[4:0] SEL[4:0] L_VAL UE[9:0] HCLR[20:0] Service Manual 12-5 Samsung Electronics...
  • Page 128 STC of the register. After finishing the conversion, it makes the interrup- tion to be pending. When AD conversion of 3 rd channel ends for the PI Control of LSU, it sends the 10bit digital data converted with the latch short pulse signal to LSUC. Service Manual 12-6 Samsung Electronics...

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