1. Manuals
  2. Brands
  3. Samsung Manuals
  4. Printer
  5. ML-2150
  6. Service manual

Samsung ML-2150 Service Manual

Hide thumbs Also See for ML-2150:
Table of Contents

Advertisement

Quick Links

See also: User Manual
SERVICE
LASER PRINTER
LASER PRINTER
ML-2150
ML-2151N
ML-2152W
Manual
CONTENTS

Advertisement

Table of Contents
loading

Related Manuals for Samsung ML-2150

Summary of Contents for Samsung ML-2150

  • Page 1: Table Of Contents

    LASER PRINTER ML-2150 ML-2151N ML-2152W SERVICE Manual LASER PRINTER CONTENTS 1. Precautions 2. Reference Information 3. Specifications 4. Summary of product 5. Disassembly and Reassembly 6. Alignment and Adjustments 7. Troubleshooting 8. Exploded Views and Parts List 9. Block Diagram...

  • Page 2: Precautions

    VARNING - OSYNLIG LASERSTR LNING N R DENNA DEL R PPNAD OCH SP RREN R URKOPPLAD. BETRAKTA EJ STR LEN. STR LEN R FARLIG. VARO! - AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA N KYM TT M LLE LASER- S TEILYLLE L KATSO S TEESEEN. Service Manual Samsung Electronics...

  • Page 3: Caution For Safety

    (12) Turn off the power and take off the plug when a smoke, strange smell, or sound from the machine. If you keep using it, a fire can occur. (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 can happen. Service Manual Samsung Electronics...
  • Page 4 (7) Be careful not to change the location of small parts such as screws when assembling and disassembling. (8) Do remove dust or foreign matters completely to prevent fire of tracking, short, or etc. (9) After finished repair, check the assembled state whether it is the same as before the repair or not. Service Manual Samsung Electronics...

  • Page 5: 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 electric- ity sufficient to damage an ESD. Service Manual Samsung Electronics...

  • Page 6: Reference Information

    Electronic Scale Cotton Swab Standard : Equipment to check the weight of con- Standard : For general home use, for medical ser-vice sumables(toner cartridge) supplied by Samsung Electronics. (The gram unit can be measured.) Spring Hook Standard : For general use...

  • Page 7: Acronyms And Abbreviations

    Read Only Memory ground Second Cassette Feeder Host Based Printing SMPS Switching Mode Power Supply Hard Disk Drive SPGP Samsung Printer Graphic Processor high voltage Samsung Printer Language HVPS High Voltage Power Supply Spool Simultaneous Peripheral Operation Online interface switch...

  • Page 8: Selecting A Location

    • Front : 482.6 mm (enough space so that trays can be removed) • Back : 320 mm (enough space to allow opening of the rear cover) • Right :100 mm • Left :100 mm (enough space for ventilation) Service Manual Samsung Electronics...
  • Page 9 The sample pattern shown in below is the standard pattern used in a factory. The contents of the life span and the printing speed are measured with the pattern shown in below. (The picture in the manual is 70% size of the actual A4 size.) 2.4.1 A4 5% Patten Service Manual Samsung Electronics...
  • Page 10 R E F E R E N C E I N F O R M AT I O N 2.4.2 A4 2% Patten Service Manual Samsung Electronics...
  • Page 11 R E F E R E N C E I N F O R M AT I O N 2.4.3 A4 IDC 5% Patten Service Manual Samsung Electronics...

  • Page 12: Wireless Lan

    The most of main wireless networking companies are attending and the main companies are Lucent technologies, Cisco, Intel/Symbol, 3Com, Enterasys (Cabletron), Compaq, IBM, Nokia, Dell, Philips, Samsung elec- tronic, Sony, Intersil, and so on. This mark certifies mutual compatibility among product has Wi-Fi (IEEE 802.1) and it is certified as a standard of...
  • Page 13 R E F E R E N C E I N F O R M AT I O N Service Manual Samsung Electronics...

  • Page 14: Specifications

    Fuser Assembly Up to 100,000 pages Optional Parts Paper Capacity : 500 Sheets Ethernet 10/100 base TX (Ml-2150:Optional Protocols : TCP/IP, SPX/IPX, Ethertalk, SNMP, ML-2151N : Basic) HTTP1.1, DLC/LLC 16MB RAM Buffer for faster graphics performance 2MB Flash Memory for upgrade...

  • Page 15: Controller Specification

    - Modes supported : Compatible,Nibble,Byte,ECP USB(without HUB mode) -USB 2.0 compliant -12 Mbps 1 port Serial : RS-232C Network Interface : option for ML-2150 -10/100 Base TX -10/100 Base TX 802.11b Wireless LAN (option for ML-2151N) Interface switching Automatic Interface time-out 5min(Max.)

  • Page 16: Environmental Condition

    >> Input capacity ITEM DESCRIPTION Cassette 500sheets MP tray Paper 100 sheets Transparencies 25 sheets Envelopes 10 sheets Labels 25 sheets Option Cassette 500sheets >> Output capacity ITEM DESCRIPTION Face Down 250 sheets Face UP 100 sheets Service Manual Samsung Electronics...
  • Page 17 Specifications Service Manual Samsung Electronics...

  • Page 18: Summary Of Product

    (Face down) Output Support Control Panel Top Cover Toner cartridge Multi-Purpose Tray Tray1 Control board cover (500-sheet paper feeder) (needed to access the control board to install printer options) Paper level indicator Optional Tray2 (500-sheet paper feeder) Service Manual Samsung Electronics...
  • Page 19 Summary of Product 4.1.2 Rear View Power switch Wireless network antenna port (ML-2550, ML-2551N:Option ML-2552W:Standard) Network port (ML-2550:Option ML-2551N, ML-2552W: Standard) USB port Rear output tray (Face up) Parallel port Power receptacle Optional Tray2 cable connector Service Manual Samsung Electronics...

  • Page 20: Control Panel

    * xxx is the current emulation. Sleeping... • The printer is in Power Save mode, consuming less power. When a print job is received from the computer or if any button is pressed,the printer switches to on-line. Service Manual Samsung Electronics...
  • Page 21 • If the button backlight is off,the double-side printing is disabled and the printer prints on one side of paper. Note : The double-sided printing setting in the printer driver overrides that of the control panel. Service Manual Samsung Electronics...
  • Page 22 After 60 seconds of inactivity (no key has been pressed), the printer automatically returns to ready mode. NOTE : Duplicate print settings that are selected in the printer driver override the settings on the control panel. Service Manual Samsung Electronics...
  • Page 23 Point Size Courier Pitch NETWORK Config Network Reset Network AppleTalk Config TCP/IP Default Set Netware DHCP Print Net CFG Config Netware IP Address Set RX Level AUTO IP Address EN_8023 Subnet Mask EN_II Gateway EN_8022 BOOTP EN_SNAP Service Manual Samsung Electronics...
  • Page 24 • You can print multiple pages on one single sheet of paper to save paper (N-Up printing ). • Preprinted forms and letterheads can be printed on plain paper. • This printer automatically conserves electricity by substantially reducing power consumption when not printing. • This printer meets Energy Star guidelines for energy efficiency. Service Manual Samsung Electronics...
  • Page 25 The table below lists a general overview of features supported by your printer. Features ML-2550 ML-2551N ML-2552W IEEE 1284 STANDARD STANDARD STANDARD USB 2.0 STANDARD STANDARD STANDARD Network Interface OPTION STANDARD STANDARD Wireless LAN OPTION OPTION STANDARD PostScript Emulation STANDARD STANDARD STANDARD Service Manual Samsung Electronics...

  • Page 26: System Layout

    Regi Regi Transfer Transfer ransfer Roller Roller Roller Roller Roller Roller Retard Retard Retard Roller Roller Roller Pick up Pick up Pick up Roller Roller Roller Cassette Duplex Unit Fuser Main Motor Toner Cartridge Exit Motor Service Manual Samsung Electronics...
  • Page 27 It has a separate driving mechanism and feeds only A4, letter, and legal size paper. It is designed for a common use with a main cassette, but it cannot be attached with the main cas- sette. Service Manual 4-10 Samsung Electronics...
  • Page 28 /HSYNC signal is detected, the image data is sent to the LSU to adjust the left mar- gin on paper. The one side of the polygon mirror is one line for scanning. Service Manual 4-11 Samsung Electronics...
  • Page 29 - OPC Drum protecting Shutter: Yes - Classifying device for toner cartridge: ID is classified by interruption of the frame channel. Cleaning Roller 0.20mW -470V Max -1.5KV -850V -250V -650V Cleaning Blade +4.2kV -100V <Toner Cartridge Layout> Service Manual 4-12 Samsung Electronics...

  • Page 30: Main Board

    - It uses USB2.0 peripheral controller and 12MHz USB Clock. A3977 - It is an exit motor driver IC and controls the motion of exit motor. Regulator - It supplies the core voltage to CPU by converting 3.3V to 1.3V. Service Manual 4-13 Samsung Electronics...
  • Page 31 - It is connected to a LCD panel. Embedded Network Card connector - A place to connect the Embedded MAC Network card. Shared Network Card connector - A place to connect the shared Network card. Service Manual 4-14 Samsung Electronics...
  • Page 32 Package:DIMM;100-pin Type:SDRAM DIMM Type:Unbuffered (SEC Custom,support other products within SEC) Error Checking:Non-parity Speed:100/133 MHz Voltage:3.3v Samsung proprietary design 16/32/64/128MB 6) Interfaces The system supports the following standard interfaces: •One parallel port - (IEEE 1284 –1994 compliant,Bi-directional,ECP/Nibble/Byte Mode). •One USB port - USB v.2.0 compliant...

  • Page 33: Reset Circuit

    • LCD : 16Char. * 2 Line / Back-light(Yellow) • Key : 9 Key • LED : 3 LED The UART method is used for the controller and panel interface, and the HR 48C50 Holtak Micom is used Service Manual 4-16 Samsung Electronics...

  • Page 34: Sensor Input Circuit

    When printing with a duplex function, it rotates the Exit Motor to a normal/reverse direction. It controls by dividing the acceleration section, standard speed section, and reducing speed section. A BLDC Motor is operated by a clock and enable signal, and a Step Motor is managed with an A3977 driver IC. Service Manual 4-17 Samsung Electronics...
  • Page 35 The HVPS part takes the 24V and outputs the high voltage for THV/MHV/BIAS, and the outputted high voltage is supplied to the toner, OPC cartridge, and transfer roller. Exit Sensor Inlet HVPS Main PBA Fuser Service Manual 4-18 Samsung Electronics...
  • Page 36 When ZENER diode is disconnected, a blank page is printed out. (It is the same case as when a ZENER diode is disconnected to OPC ground.) Service Manual 4-19 Samsung Electronics...
  • Page 37 AVG : 100 Wh PRINTING 1.0 A 0.25 A 2.0 A AVG : 450 Wh Sleep-Mode 0.4 A 0.01 A 0.4 A AVG : 20 Wh >>Length of Power Cord: 1830 ± 50mm >>Power Switch : Use Service Manual 4-20 Samsung Electronics...

  • Page 38: Fuser Ac Power Control

    On the other hand, when the signal is off, the PC1 is off, the voltage is cut off at the gate of Triac, the Triac becomes off, and then the heat lamp is turned off. >>Triac (THY1) feature:12A,600V SWITCHING >>Phototriac Coupler (PC3) • Turn On If Current : 16mA • High Repetive Peak Off State Voltage : Min 600V Service Manual 4-21 Samsung Electronics...
  • Page 39 AD converter. The voltage value for impressing to the transfer roller is decided by the changed value. Service Manual 4-22 Samsung Electronics...
  • Page 40 Error Description Polygon motor error When the polygon motor’s speed doesn’t Engine LSUError become a normal Hsync error The polygon motor’s speed is normal, HSYNC Error but the Hsync signal is not created. Service Manual 4-23 Samsung Electronics...

  • Page 41: Disassembly And Reassembly

    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 position. Service Manual Samsung Electronics...

  • Page 42: Transfer Roller

    * Do not grab the transfer roller shown in picture (A). It may cause a malfunction due to a foreign object. * Hold the both sides of the transfer roller shown in picture (B) when replacing it. Transfer Roller Transfer Roller Transfer Roller Service Manual Samsung Electronics...
  • Page 43 Locate the hook section of the spring that is connected to the Knock Up Plate ass'y as shown in the picture below toward the outside for conve- nience of assembling. Tray Link MP Pick Up Rack Knock Up Plate Ass'y Service Manual Samsung Electronics...
  • Page 44 2. Unplug the connector and remove the two screws, as Photo shown below. Interrupter MP Actuator Holder Pad Ass'y 5.5 RH Cover 1. Pull the Cassette out of the printer. Cassette 2. Remove two screws and take out the RH Cover. RH Cover Service Manual Samsung Electronics...

  • Page 45: Control Board

    3. :The connectors are located as shown below. Exit Control Board Bracket Motor Key Panel Catridge DC Fan Open Cover Engine PTL (REGI) Maine Motor NOTICE : One screw among the screws is locked Connector Board on the Engine Shield.(Refer to 5.25.3) Service Manual Samsung Electronics...
  • Page 46 5. When separating the Main Motor ass'y, discon- nect the connector form the Main PBA, remove 4 screws, and then remove the Main Motor ass'y. 3. Remove the e-ring and take out the Clutch. Clutch Main Motor Ass'y Service Manual Samsung Electronics...

  • Page 47: Connector Board

    Solenoid Harness from the Connector Board. Main Solenoid NOTICE : It is not necessary to disassemble the 3. Remove two screws and take out the MP Main Drive Ass’y to remove the MP Solenoid. Solenoid MP Solenoid Service Manual Samsung Electronics...
  • Page 48 1. Before you remove the LH Cover, you should remove: 3.Remove two screws and take out the RH Cover. - Cassette (Refer to the 5.5) 2. Open the Rear Cover and remove two screws. LH Cover Rear Cover Service Manual Samsung Electronics...

  • Page 49: Rear Cover

    2. Unplug the Fan Harness from the Connector Board. 5.12 Rear Cover 1. Open the Rear Cover, and then remove the 2. Remove the Rear Cover in the direction of screw that secures the stopper. arrow. Rear Cover Stopper Service Manual Samsung Electronics...

  • Page 50: Top Cover

    3. Unplug the two Connectors after you remove the three screws frome the Control Board. 6. Remove 7 screws, and then take out the LCD Panel and the Key Panel. Key Panel Cover Open LCD PAnel Key Panel Service Manual 5-10 Samsung Electronics...

  • Page 51: Open Cover

    1. Before you remove the Inner Cover, you should 2. Remove two screws and take out the Inner Cover. remove: - MPF Ass/y (Refer to the 5.3) - Top Cover (Refer to the 5.13) Inner Cover Service Manual 5-11 Samsung Electronics...
  • Page 52 Fuser Ass’y. Thermostat Gear Bracket 7. Remove two screws and divide the Fuser into two parts. 4. Remove one screw, and then take out the Thermister from the Fuser Ass’y. Fuser Upper Unit Thermistor Service Manual 5-12 Samsung Electronics...
  • Page 53 Disassembly and Reassembly 8. Take out the Heat Roller as shown below. 9. Take out the Pressure Roller as shown below. Heat Roller Pressure Roller Bushing Bushing Fuser Gear Service Manual 5-13 Samsung Electronics...
  • Page 54 4.Remove two screws and take out the Exit Motor. remove: - Top Cover (Refer to the 5.13) Exit Motor 2. Unplug the Exit Driver Harness from the Control Board. 3. Remove three screws and take out the Exit Driver Ass’y. Service Manual 5-14 Samsung Electronics...

  • Page 55: Exit Roller

    - Exit Drive (Refer to the 5.17) Duplex Exit Roller 2. Remove the Exit Roller and Bearing as shown below. Bearing Exit Roller 3. Take out the Exit Gear as shown below. Bearing Exit Gear Service Manual 5-15 Samsung Electronics...
  • Page 56 4. Remove three screws and take out the LSU. - Top Cover (Refer to the 5.13) 2. Release the lock as shown below. 3. Remove the Exit Roller Rack in the direction of arrow. Exit Roller Rack Service Manual 5-16 Samsung Electronics...

  • Page 57: Toner Sensor Board

    - LSU (Refer to the 5.19) LSU Lower Cover 2. Unplug 4 Harness from the Toner Sensor Board. 3. Remove 4 screws and take out the Toner Sensor Board. Toner Sensor Board HV Small Spring Service Manual 5-17 Samsung Electronics...
  • Page 58 PTL PBA. PTL Upper 3. Release the lock as shown below and lift up the Gear Cap. PTL PBA Gear Cap 4. Take out the Regi. Ass’y as shown below. REGI Ass'y Service Manual 5-18 Samsung Electronics...
  • Page 59 5. Slide the cam to the left by pulling on the MP Pick-up shaft MP Pick Up Shaft 3. Remove the E-Rings on both ends of Gear Ass’y and remove Ass’y as shown below. E-Ring Gear Ass'y Service Manual 5-19 Samsung Electronics...
  • Page 60 Disassembly and Reassembly 6. First lift the left side of the Shaft and then 7. Push the idles toward the ends of shaft then remove the Shaft. take out the Housing as shown below. Idle Idle Housing Service Manual 5-20 Samsung Electronics...
  • Page 61 Next, left side of the sjaft to the right side. Be careful not to mass up with the Holder Pad ass'y. Roller Ass'y 3. Take out the Gear, as shown below. Retard Gear Service Manual 5-21 Samsung Electronics...
  • Page 62 5. Release the lock as shown below and lift up the Stopper. Stopper 3. Remove E-Ring and take The Gear Ass’y out. 6. Lift ICU Shield out in the direction of arrow as shown below. ICU Shield Gear Ass'y Service Manual 5-22 Samsung Electronics...
  • Page 63 Pick Up Roller Feed Roller 10. Remove the Pick Up Ass’y as shown below. 8. Remove four screws and lift the Pick Up Unit out in the direction of the arrow as shown below. Pick Up Unit Service Manual 5-23 Samsung Electronics...

  • Page 64: Engine Shield

    2. Remove the Actuator as shown below. Actuator Notice: Be careful not to get burnt when separat- ing an Engine PBA. Engine Shield 3. Remove ten screws and slightly lift the Engine Shield, as shown below. Service Manual 5-24 Samsung Electronics...

  • Page 65: Engine Board

    1. Before you remove the Engine Board, you should 2. Remove four screws and take the Engine Board remove: out of the Duplex Unit. - Engine Shield (Refer to the 5.25) Engine Board LH Guide (Duplex) RH Guide (Duplex) Service Manual 5-25 Samsung Electronics...

  • Page 66: Alignment And Adjustments

    6.1.4 Usage & Function of LCD Line Characters Description Remarks Make engineers recognizing a test location. [Main Menu] or [Function] is displayed. Bottom Make engineers recognizing a menu or function to be tested A menu or function name displayed Service Manual Samsung Electronics...
  • Page 67 Tray3 Sensor Tray3 Solenoid Test Transfer Negative Voltage Duplex Sensor Tray2 Clutch Test PTL Test Cover Open Sensor Tray3 Clutch Test Feed Sensor Exit Sensor Development Test Setting Temperature Test Laser Diode Test Laser Ready Test Service Manual Samsung Electronics...
  • Page 68 “Cancel Key” for stopping. Location order: Pick up a Feed On → Exit On → Feed Off → Exit Off → End (It is possible that Feed Off → Exit On, when a paper size is small) Service Manual Samsung Electronics...
  • Page 69 --> When a tray 3 is not installed, this function is not processed and "Tray 3 Not Installed" is shown. The fan keeps running after the execution key is chosen Fan On(Off) and stops when the stop key is chosen. Service Manual Samsung Electronics...
  • Page 70 On this mode, the tray 3 motor runs before 2sec from the point of the clutch on in order to check the clutch state. --> When a tray 3 is not installed, this function is not processed and "Tray 3 Not Installed" is shown. Service Manual Samsung Electronics...
  • Page 71 After the cover is open, touch the sensor and confirm Cover Open Cover Close Sensor the message changed "Cover Open" to " Cover Close" Feed Sensor Touch the Feed sensor. Feed Off Feed On Exit Sensor Touch the Feed sensor. Exit Off Exit On Service Manual Samsung Electronics...
  • Page 72 “Diode On” is displayed, when the laser diode is on. Ld On(Off) On the other case “Diode Off” is displayed. Laser Ready Test “Laser Leady” is displayed, When the Laser Laser Leady (Error) Scanning Unit is ready to print. On the other case “Laser Error” Service Manual Samsung Electronics...

  • Page 73: Paper Path

    R4 : Idle Roller R10 : Pressure Roller S4: Exit Sensor R5 : MP Pick-UP Roller R11 : Duplex Roller S5: Duplex Sensor R6 : Retard Roller R12 : Duplex Idle Roller <Jam 0> <Jam 1> Service Manual Samsung Electronics...
  • Page 74 6) The printing paper that passes the duplex sensor reaches to a feed sensor again and a printing operation is tried over again. - If the printing paper cannot reach to a feed sensor after certain time later, a duplex Jam 2 occurs. Service Manual Samsung Electronics...

  • Page 75: Clearing Paper Jams

    NOTE : If the jammed paper is not invisible or if there is resis- tance when you pull the paper,remove the tray from the printer and carefully pull the jammed paper free from the printer. Service Manual 6-10 Samsung Electronics...
  • Page 76 • In the Multi-Purpose Tray 1. Open the Multi-Purpose Tray. 3. Open and close the top cover.Printing can be resumed. 2. Carefully remove the jammed paper from the tray. Service Manual 6-11 Samsung Electronics...
  • Page 77 3. Carefully lift up the guide feed. NOTE : If the toner cartridge is difficult to reinstall,make sure that the guide feed has been flipped back down into position. 6. Close the top cover.Printing can be resumed. Service Manual 6-12 Samsung Electronics...
  • Page 78 3. Loosen the paper if it is caught in the feed rollers. Then If not,continue to Step 2. gently pull the paper out. 2. Open the rear output tray. 4. Close the rear output tray. 5 Open and close the top cover.Printing can be resumed. Service Manual 6-13 Samsung Electronics...
  • Page 79 2. Pull down the metal plate inside of the printer. 4. Slide the tray back into the printer. CAUTION : Pulling the plate could cause an injury.Use the lever 5. Open and close the top cover.Printing can be resumed. on the left. Service Manual 6-14 Samsung Electronics...

  • Page 80: Sample Pattern

    Cleaning ” or “Fuser Cleaning.” 6. Press the Enter button Your printer automatically picks up a sheet of paper from the tray and prints out a cleaning sheet with dust or toner particles on it. Service Manual 6-15 Samsung Electronics...
  • Page 81 - Contents: Shows the product year and the month of the developer. 6.3.3.4 Supplier: SAMSUNG - Contents: shows the brand name of the developer. (Supplier is Samsung) - Description: If a supplier is other OEM, the other OEM's name is displayed. If a supplier is different between a set and developer, a message "invalid toner"...
  • Page 82 (1) Please be careful not to damage a toner sensor part when assembling and disassembling a developer. (2) Please be careful not to stain any- thing to jumper (4), which is shown in the picture. Jumper Service Manual 6-17 Samsung Electronics...

  • Page 83: Consumables And Replacement Parts

    Pick-up Roller 100,000 Pages Paper Feeding Roller(Friction Pad) 100,000 Pages Transfer Roller 100,000 Pages Fuser 100,000 Pages Toner Cartridge Normal cartridge : 8,000 Pages (A4 5% Pattern) Starter cartridge : 4,000 Pages (A4 5% Pattern) Service Manual 6-18 Samsung Electronics...

  • Page 84: Periodic Defective Image

    82 mm Black spot and image ghost Pressure Roller 92 mm black spot on the backside 솔레노이드 솔레노이드 OPC Drum Transfer Roller Charge Roller Heat Roller Supply Roller Pressure Roller Developing Roller Cleaning Roller <Rollers Layout> Service Manual 6-19 Samsung Electronics...
  • Page 85 ALIGNMENT & A D J U S T M E N T S Service Manual 6-20 Samsung Electronics...

  • Page 86: Troubleshooting

    Remove if found. 5. It may occur when foreign substances 5. If the problems are not solved, replace are on the OPC Drum. the toner cartridge. Service Manual Samsung Electronics...

  • Page 87: Horizontal Black Band

    4. In case of 95 mm interval unremovable in 1, take measures as to replace the toner car- tridge 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 Samsung Electronics...

  • Page 88: Light Image

    HVPS. 3. Replace the HVPS if not solved by the above direction 1 and 2. 3. VD0 signal of the Main PBA is Low state. 4. Replace the LSU Unit or Main PBA. Service Manual Samsung Electronics...

  • Page 89: 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 toner cartridge. Service Manual Samsung Electronics...
  • Page 90 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 Samsung Electronics...
  • Page 91 2. If the transfer roller is contaminated, stains 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 Samsung Electronics...
  • Page 92 2. Perform the engine self test using EDC Mode to check if the Solenoid is normal. 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 Samsung Electronics...

  • Page 93: The Cause And Solution Of The Bad Discharge

    4. Replace the Main PBA and/or Sensor. whether the assembly slot between shaft-pickup and housing-pickup opens or is broken away. 5. If the paper feeds into the printer and Jam 0 occurs, perform EDC Mode to check feed-sensor of the engine board. Service Manual Samsung Electronics...
  • Page 94 3. Remove the jammed paper after disas- sembling the fuser : Clean the surface of the pressure roller with dry gauze. • Remove the toner particles stained on the rib. • Check the assemblage and perfor- mance of the exit. Service Manual Samsung Electronics...
  • Page 95 If it is worn or defective, replace it. 3. Check an operation of a feed roller and a registration roller. If they are worn or defective replace them. Service Manual 7-10 Samsung Electronics...

  • Page 96: Paper Rolled In The Fuser

    3. Clean the surface of the heat roller with IPA or water 4. Check the warp or separation of the print claw and the holder plate claw, and then manage it. Service Manual 7-11 Samsung Electronics...

  • Page 97: Paper Rolled On The Opc Drum

    2. How to remove the rolled paper in the OPC. • Remove the paper while turning the OPC against the ongoing direction. • Clean fingerprints on the OPC softly with soft cloth dampened with tissue. Service Manual 7-12 Samsung Electronics...

  • Page 98: The Cause And Solution Of The Malfunction

    - Replace a LSU not. 2. Check whether the LSU motor is rotating or not. - Replace a main board if the same error occurs again after replacing a LSU. 3. Check the HSYNC signal. Service Manual 7-13 Samsung Electronics...

  • Page 99: 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 2. Replace the Sensor PBA. 3. Check the Connector. Service Manual 7-14 Samsung Electronics...

  • Page 100: Paper Empty Without Indication

    2. Check the connector and circuit of the cover switch 2. Check the insertion of the Cover Open S/W department in the Main Control board. Connect. 3. Replace the Main Control board or Cover Open S/W. Service Manual 7-15 Samsung Electronics...
  • Page 101 1. Check the connector and circuit of the cover switch 1. Check the insertion of the Cover Open S/W department in the Main Control board. Perform EDC Connect. mode 2. Replace the Main Control board or Cover Open S/W. Service Manual 7-16 Samsung Electronics...

  • Page 102: Defective Motor Operation

    1. Replace the power supply cord or SMPS. 2. Check the inferiority of LED-Panel or LDC window on the 2. Replace the control board. front-cover if the OP panel does not appear after normal warming-up. 3. Replace the OP panel. Service Manual 7-17 Samsung Electronics...

  • Page 103: 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 EDC Mode: LSU Check. 2. Replace theToner Joint PBA. 2. Chect the Deve PBA in the Toner Cartridge. 2. Replace the MainPBA. Service Manual 7-18 Samsung Electronics...
  • Page 104 2) Detecting a serial no of a developer: If a serial no code is different with a supplying company°Øs serial no., it is not operated. 3) Detecting a developer supplying company: If it is not Samsung’s, it is not operated. 4) Detecting page counter: It detects the life span of a developer.

  • Page 105: Low Toner

    Therefore, recommend a user to replace a developer. When continuously using, even though a count reach- es to 20,000 pages, a printed image becomes misty, and an on-line key that is flashing on a set must be pressed for a single print. Service Manual 7-20 Samsung Electronics...
  • Page 106 (1)Check whether foreign sub- stances or toner are stuck to the terminal (contact point) of the toner cartridge. (2)Check whether the state of the terminal assembly is normal. 3. If it cannot be recycled: Replace the toner cartridge. Service Manual 7-21 Samsung Electronics...
  • Page 107 2 times. (2)Check whether the state of (2)If toner nearly being expired the terminal assembly is nor- are collected to use, it is mal. judged as the recycled toner cartridge. Service Manual 7-22 Samsung Electronics...
  • Page 108 Clean the terminals of (point of contact) of the the developing roller, then toner cartridge and the state recheck it. of assembly. (Especially check the devel- oping roller terminal.) Service Manual 7-23 Samsung Electronics...

  • Page 109: The Cause And Solutions Of Bad Environment Of The Software

    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 7-24 Samsung Electronics...
  • Page 110 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 7-25 Samsung Electronics...

  • Page 111: 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 7-26 Samsung Electronics...

  • Page 112: 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 7-27 Samsung Electronics...
  • Page 113 T RO U B L E S H O OT I N G Service Manual 7-28 Samsung Electronics...

  • Page 114: Exploded Views And Parts List

    This format is used throughout Samsung on all product ranges. Typically it is used for small components and electronic parts. This format is controlled by individual Samsung Divisions and is used on specific products, typically for mechanical parts. Type 2 format part numbers fall into 2 categories: Assemblies consisting of 2 or more parts.

  • Page 115: Main Assembly

    Exploded Views & Parts List 8.1 Main Assembly 24-2 24-3 24-1 24-4 25-1 25-2 25-3 41(ML-2551N only) 41-2 27-1 41-1 27-2 27-3 14-2 14-3 14-1 Service Manual Samsung Electronics...
  • Page 116 ELA UNIT-MOTOR EXIT CARDINAL2 ; ML-2550,XE JC96-02857A S7016 ELA HOU-SMPS_HVPS_V1(110V) ; ML-2550,SEC JC96-02779B 110V ELA HOU-SMPS_HVPS_V2(220V) ; ML-2550,SEC JC96-02777B 220V K3567 MEA UNIT-GUIDE FRONT, DUP ; ML-2150,SEC JC97-01715A 14-1 G2085 GUIDE-P-FRONT, DUP ; ML-2060,SECC,0.8,76 JC61-00660A 14-2 L4035 LEVER-M-OPEN, DUP ; ML-2060,PC,2.5,12,40 JC66-00443A...
  • Page 117 SPRING-TR R HAWK ; ML-6060A,SUS 304 WPB JC61-00046A 25-3 K3741 PMO-TRANSFER HOLDER L ; ML-6060A,ABS,GRAY JC72-41145C C1013 CAP-M-GEAR ; ML-2060,POM,BLK JC67-00039A G0467 MEA UNIT-GEAR P/UP MP CARDINA ; ML-2150 JC97-01738A 27-1 Z4145 SPRING--CAM MP ; ML-6100,SUS304-WPB,2.4,0 JC61-00003A 27-2 P2055 GEAR-MP PICK_UP ; ML-2060,M90-44,0.8,37,20...

  • Page 118: Base-Houshing Assembly

    Exploded Views & Parts List 8.2 Base-Houshing Assembly 1-18 1-14 1-13 1-10 1-15 1-11 1-14 1-12 1-16 1-17 Service Manual Samsung Electronics...
  • Page 119 SPRING ETC-DUPLEX COVER ; ML-9400W,SUS304W JC61-00391A L6053 PMO-STACKER LOCKER ; ML-2060,ABS,0810 JC72-00995A K4284 WINDOW-M-LCD ; ML-2060,ACRYL,TRANS JC64-00048A K0033 KEY-M-BUTTON ; ML-2060,ABS JC64-00045A K2377 PBA MAIN-LCD PANEL ; ML-2150,SEC,KOREA,LCD JC92-01473A 1-10 K0037 KEY-M-DUPLEX ; ML-2060,ACRYL,NATURAL JC64-00044A 1-11 K0045 KEY-M-ON LINE ; ML-2060,ACRYL,NATURAL JC64-00046A 1-12 Z2213 COVER-M-OPEN ;...

  • Page 120: Frame Assembly

    Exploded Views & Parts List 8.3 Frame Assembly (1) 36-2 36-3 36-1 19-2 19-3 19-1 19-4 2-4-3 2-4-2 2-4 -1 Service Manual Samsung Electronics...
  • Page 121 Frame Assembly (2) 67-3 67-4 67-3 67-14 67-5 67-2 67-9 67-1 68-7 68-13 68-11 68-9 68-1 67-13 68-12 67-5 68-8 67-7 68-6 68-4 67-6 67-7 68-2 67-14 68-3 68-10 68-5 67-11 67-9 68-S 67-12 67-8 67-13 67-10 Service Manual Samsung Electronics...
  • Page 122 PMO-ACTUATOR MP ; ML-2060,PC,BLK JC72-01002A Z4247 SPRING ETC-REMAIN ; ML-9400W,SUS304WPB,0.4 JC61-00414A K2483 PHOTO-INTERRUPTER ; TR,-,200mW,DIP-4,ST 0604-001095 H1168 CBF HARNESS-MP EMPTY ; ML-2150,CBF,UL 1061 JC39-00256A Z4226 SPRING ETC-PAD ; ML-9400W,SUS304WPB,7.55 JC61-00387A G2083 GUIDE-P_TRANSFER ; ML-2060,SECC,0.6 JC61-00678A K3376 PMO-HOLDER PLATE SAW ; ML-6060A,-,PC,WHT...
  • Page 123 IPR-TERMINAL TR HAWK ; ML-6060A,SUS301,T0 JC70-00132A C1015 CAP-M-WIRE PTL LOWER ; ML-2060,POM JC67-00036A M0411 PBA SUB-PTL2 ; ML-2150,SEC,KOREA,PTL2 JC92-01516A H1267 CBF HARNESS-THRMISTOR ; ML-2150,CBF,UL 106 JC39-00255A K4276 TERMINAL-P_PTL ; SUS,T0.2 JC65-00001A Z1040 SHIELD-P_CONTROLLER ; ML-2060,SECC,0.8 JC63-00124A N1000 NUT-HEX ; 2C,M3,ZPC(YEL),SM20C...
  • Page 124 O : Service available X : Service not available Description SEC.Code Q’ty Remark Location H1098 CBF HARNESS-HVPS ; ML-2150,CBF,UL 1007,4PI JC39-00247A Z0004 CBF HARNESS-CONNECTOR ; ML-2150,CBF,UL 106 JC39-00259A H1242 CBF HARNESS-SENSOR ; ML-2150,CBF,UL 1061,4 JC39-00261A P2051 ELA UNIT-PICK UP ; ML-2060,SEC,220V...

  • Page 125: Fuser Assembly

    Exploded Views & Parts List 8.4 Fuser Assembly 1-19 1-13 1-11 1-12 1-20 1-15 1-18 1-15 1-18 1-16 1-14 1-10 1-14 1-10 1-17 2-10 Service Manual 8-12 Samsung Electronics...
  • Page 126 Q’ty Remark Location F4068 ELA UNIT-FUSER_25 ; ML-2550,XEROX,USA,110V JC96-02693C 110V ELA UNIT-FUSER_25 ; ML-2550,XEROX,USA,220V JC96-02693D 220V W3182 ELA UNIT-UPPER FUSER ; ML-2150,SEC,USA JC96-02694A F4127 THERMISTOR-NTC ; 7KOHM,-,3370K,0.3MW/C 1404-001305 S2003 SCREW-ASSY MACH ; WSP,PH,+,M3,10,ZPC(YEL) 6006-001193 N1000 NUT-HEX ; 2C,M3,ZPC(YEL),SM20C 6021-000222 Z4107 SPRING-TS ;...
  • Page 127 Fuser Unit Assembly Parts List(2/2) SA : Service Available O : Service available X : Service not available Description SEC.Code Q’ty Remark Location K3531 MEA UNIT-BRK GEAR FU ; ML-2150,SEC,USA JC97-01720A B4024 BRACKET-P-FUSER ; ML-2060,SECC,T1.2 JC61-00617A G0268 GEAR-IDLE 33 ; ML-2060,M90-44,1.0,33,8,NTR JC66-00425A G0269 GEAR-IDLE 23 ;...

  • Page 128: Main Driver Assembly

    GEAR-MP DRV ; ML-2060,M90-44,0.8,45,7.5,NT JC66-00413A G0413 GEAR-REGI IDLE ; ML-2060,M90-44,0.8,29,15E JC66-00408A G0399 GEAR-RDCN REGI ; ML-2060,SW-01,0.5/0.8,59 JC66-00407A G0346 GEAR-OPC DRV INNER ; ML-2150,M90-44,0.5,53 JC66-00644A W0002 WASHER-PLAIN ; NYLON,CUTTING,ID5,OD9,T0.5 6031-001255 O0012 GEAR-RDCN OPC ; ML-2060,M90-44,0.5,61/26,1 JC66-00405A D3019 GEAR-DUPLEX IDLE ; ML-2060,M90-44,1.0,23,3...

  • Page 129: Exit Driver Assembly

    GEAR-RDCN EXIT ; ML-2060,M90-44,0.5/1.0,53 JC66-00419A F4087 GEAR-FUSER IDLE ; ML-2060,SW-01,1.0,29,8,N JC66-00418A E4045 GEAR-EXIT/U,ID ; ML-1605,POM,BLK JC66-40211B F4098 GEAR-RDCN FUSER IN ; ML-2060,M90-44,0.5,79 JC66-00416A C9033 GEAR-HUB CLUTCH ; SCX-5100,POM,M0.8,Z13 JC66-00340A F4099 GEAR-RDCN FUSER OUT ; ML-2060,M90-44,1.0,2 JC66-00417A Service Manual 8-16 Samsung Electronics...

  • Page 130: Regi Assembly

    BUSH-M-ROLLER REGI L ; ML-2060,POM(M90-44) JC61-00668A K2885 BUSH-M-ROLLER REGI U ; ML-2060,POM(M90-44) JC61-00669A Z4110 SPRING-ES ; SWP-WPB,-,PI0.55,-,L25,N29 6107-001155 H1168 CBF HARNESS-MP EMPTY ; ML-2150,CBF,UL 1061 JC39-00256A W0002 WASHER-PLAIN ; NYLON,CUTTING,ID5,OD9,T0.5 6031-001255 C1016 CAP-M-WIRE PTL UPPER ; ML-2060,POM,B JC67-00035A A0003 CAP-M_BUSHING ACTUATOR ; ML-2060,POM...

  • Page 131: Smps Assembly

    Exploded Views & Parts List 8.8 SMPS Assembly 2-15 2-12 2-14 2-13 2-10 2-14 2-11 2-16 Service Manual 8-18 Samsung Electronics...
  • Page 132 E6155 PMO-ACTUATOR FEED, DUP ; ML-2060,POM,BLK JC72-00997A 2-11 W0003 PCT-SILP WASHER ; SRP-350,PET,T0.5 JK72-00058A 2-12 G2098 ICT-STUD PAPER GUIDE, DP ; ML-2150,SUS 303 JC70-00457A 2-13 G2075 GUIDE-M-RIGHT, DUP ; ML-2060,ABS, V0,2.0,5 JC61-00662A 2-14 F6042 BUSH-M-FEED, DUP ; ML-2060,POM, SW01,4.1,7 JC61-00665A...

  • Page 133: Cassette Assembly

    Exploded Views & Parts List 8.9 Cassette Assembly Service Manual 8-20 Samsung Electronics...
  • Page 134 Cassette Assembly Parts List SA : Service Available O : Service available X : Service not available Description SEC.Code Q’ty Remark Location K3096 ELA UNIT-CASSETTE(550) ; ML-2150,SEC,110 JC96-02845A F2112 FRAME-M-CASSETTE ; ML-2060,HIPS,HB,BLACK JC61-00642A G2062 GUIDE-M-HANDLE ; ML-2060,ABS,V0,IVOR JC61-00655A L0209 LABEL(R)-CASSETTE ; ML-2060,SAMSUNG,TETRON JC68-01031A G2064 GUIDE-M-INNER CST ;...

  • Page 135: Scf Assembly

    Exploded Views & Parts List 8.10 SCF Assembly 35-4 35-2 35-3 35-1 18-3 18-4 18-5 18-2 18-1 10-1 10-2 18-6 10-3 10-5 10-4 Service Manual 8-22 Samsung Electronics...
  • Page 136 SCF Assembly Parts List(1/2) SA : Service Available O : Service available X : Service not available Description SEC.Code Q’ty Remark Location L1012 ELA UNIT-SCF ; ML-2150 JC96-02842B S1031 FRAME-M-SCF ; ML-2060, JC61-00643A P2051 MEA UNIT-PICK UP ASS'Y JC96-02683A P2068 HOUSING-M-PICKUP ;...
  • Page 137 IPR-PLATE SENSOR ; ML- JC70-00192A 35-2 S3055 IPR-BRACKET SENSOR ; M JC70-00195A 35-3 M0301 PBA SUB-CASSETTE ; ML- JC92-01336A H1234 CBF HARNESS-SCF PAPE JC39-00297A M2053 CBF HARNESS-MOTOR ; ML JC39-00157A G2069 GUIDE-M-PAPER PATH ;M JC61-00803A Service Manual 8-24 Samsung Electronics...

  • Page 138: Block Diagram

    B LOCK DIAG R A M 9. Block Diagram A CK* , BU SY, SEL E CT , ERROR, FA UL T * PD(0 :7 ) SEL I N* ST ROB E* A UT OFD* I NI * Service Manual Samsung Electronics...
  • Page 139 B LOCK DIAG R A M Service Manual Samsung Electronics...

  • Page 140: Connection Diagram

    C O N N E C T I O N D I AG R A M 10. Connection Diagram Service Manual 10-1 Samsung Electronics...
  • Page 141 C O N N E C T I O N D I AG R A M Service Manual 10-2 Samsung Electronics...
  • Page 142 11. Schematic Diagrams 11-1 Main Circuit Diagram(1/9) 11-1 - This Document can not be used without Samsung's authorization -...
  • Page 143 Schematic Diagrams Main Circuit Diagram(2/9) 11-2 - This Document can not be used without Samsung's authorization -...
  • Page 144 Schematic Diagrams Main Circuit Diagram(3/9) 11-3 - This Document can not be used without Samsung's authorization -...
  • Page 145 Schematic Diagrams Main Circuit Diagram(4/9) 11-4 - This Document can not be used without Samsung's authorization -...
  • Page 146 Schematic Diagrams Main Circuit Diagram(5/9) 11-5 - This Document can not be used without Samsung's authorization -...
  • Page 147 Schematic Diagrams Main Circuit Diagram(6/9) 11-6 - This Document can not be used without Samsung's authorization -...
  • Page 148 Schematic Diagrams Main Circuit Diagram(7/90) 11-7 - This Document can not be used without Samsung's authorization -...
  • Page 149 Schematic Diagrams Main Circuit Diagram(8/9) 11-8 - This Document can not be used without Samsung's authorization -...
  • Page 150 Schematic Diagrams Main Circuit Diagram(9/9) 11-9 - This Document can not be used without Samsung's authorization -...
  • Page 151 Schematic Diagrams 11-2 HVPS Circuit Diagram(1/2) 11-10 - This Document can not be used without Samsung's authorization -...
  • Page 152 Schematic Diagrams HVPS Circuit Diagram(220V) 11-11 - This Document can not be used without Samsung's authorization -...
  • Page 153 Schematic Diagrams 11-3 SMPS Circuit Diagram(110V) 11-12 - This Document can not be used without Samsung's authorization -...
  • Page 154 Schematic Diagrams SMPS Circuit Diagram(220V) 11-13 - This Document can not be used without Samsung's authorization -...
  • Page 155 Schematic Diagrams SMPS Circuit Diagram(220V for China) 11-14 - This Document can not be used without Samsung's authorization -...
  • Page 156 Schematic Diagrams 11-3 Network Card Circuit Diagram(1/5) 11-15 - This Document can not be used without Samsung's authorization -...
  • Page 157 Schematic Diagrams Network Card Circuit Diagram(2/5) 11-16 - This Document can not be used without Samsung's authorization -...
  • Page 158 Schematic Diagrams Network Card Circuit Diagram(3/5) 11-17 - This Document can not be used without Samsung's authorization -...
  • Page 159 Schematic Diagrams Network Card Circuit Diagram(4/5) 11-18 - This Document can not be used without Samsung's authorization -...
  • Page 160 Schematic Diagrams Network Card Circuit Diagram(5/5) 11-19 - This Document can not be used without Samsung's authorization -...
  • Page 161 Schematic Diagrams 11-4 SCF PBA Circuit Diagram(1/2) 11-20 - This Document can not be used without Samsung's authorization -...
  • Page 162 Schematic Diagrams SCF PBA Circuit Diagram(2/2) 11-21 - This Document can not be used without Samsung's authorization -...
  • Page 163 Schematic Diagrams 11-5 RAM DIMM Circuit Diagram(1/2) 11-22 - This Document can not be used without Samsung's authorization -...
  • Page 164 Schematic Diagrams RAM DIMM Circuit Diagram(2/2) 11-23 - This Document can not be used without Samsung's authorization -...
  • Page 165 Schematic Diagrams 11-6 Panel PBA Circuit Diagram 11-24 - This Document can not be used without Samsung's authorization -...
  • Page 166 Schematic Diagrams 11-7 PS3 ROM Circuit Diagram 11-25 - This Document can not be used without Samsung's authorization -...
  • Page 167 Schematic Diagrams 11-8 Connector PBA Circuit Diagram 11-9 Cover Open Sensor Circuit Diagram 11-26 - This Document can not be used without Samsung's authorization -...
  • Page 168 Schematic Diagrams 11-10 Enpty Sensor Circuit Diagram 11-11 Exit Sensor Circuit Diagram 11-27 - This Document can not be used without Samsung's authorization -...
  • Page 169 Schematic Diagrams 11-12 OPC PBA Circuit Diagram 11-13 Toner PBA Circuit Diagram 11-28 - This Document can not be used without Samsung's authorization -...
  • Page 170 Schematic Diagrams 11-14 Zener PBA Circuit Diagram 11-29 - This Document can not be used without Samsung's authorization -...
  • Page 171 ITSELF system f Samsung Electronics Co., Ltd. Printed in Korea. http://itself.sec.samsung.co.kr VERSION NO. : 1.00 CODE : JC-0089A - This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. -...
  • Page 172 Copyright(c) 2003.04...

This manual is also suitable for:

Ml-2152wMl-2151n

Table of Contents