DIGITAL LASER MFP SCX-4200 Series SCX-4200/XAX Basic Model : SCX-4200 SERVICE DIGITAL LASER MFP Manual The keynote of Product [ Key Features ] - 18ppm Print/Copy Speed - 600dpi Print/Copy Resolution - 600 x 2400dpi Scan Resolution - Samsung Print Language - 8MB System Momory - 250sh Paper Input/50sh Paper Output - Under 42sec Warm-up Time - 16 x 2 Line LCD Display - USB 2.
ELECTRONICS * 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. * This service manual is also provided on the web, the ITSELF system Samsung Electronics Co., Ltd. http://itself.sec.samsung.co.kr Samsung Electronics Co.,Ltd. November. 2005 Printed in Korea. VERSION NO. : 1.
Contents 1. Precautions 1.1 1.2 1.3 1.4 Safety Warning Caution for safety ESD Precautions Super Capacitor or Lithium Battery Precautions 1-1 1-2 1-5 1-5 2. Product Specification 2.1 Product Overview 2.2 Specifications 2-1 2-2 3. System Overview 3.1 System Outline 3.2 H/W Structure abd Descriptions 3.3 S/W Structure and Descriptions 3-1 3-9 3-19 4. Alignment and Adjustments 4.1 Engine Test Mode 4.2 Paper Path 4.3 Clearing Paper Jams 4.4 Printing the System Data List 4.5 Clearing the Memory 4.
Continued 5. Disassembly and Reassembly 5.1 General Precautions on Disassembly 5.2 Front Cover 5.3 Rear Cover 5.4 DC Fan 5.5 Right Side Cover 5.6 Left Side Cover 5.7 Scanner Unit 5.8 OPE Unit 5.9 Middle Cover Unit 5.10 Fuser 5.11 Exit Roller 5.12 LSU 5.13 Fan 5.14 Drive Ass'y 5.15 Engine Shield Ass'y 5.16 Main PBA 5.17 SMPS 5.18 CRUM PCB 5.19 Transfer Roller 5.20 Feed Roller 5.21 Pick Up Roller & Solenoid 5-1 5-2 5-3 5-4 5-5 5-6 5-7 5-10 5-11 5-12 5-14 5-15 5-16 5-16 5-17 5-17 5-18 5-19 5-20 5-21 5-23 6.
Continued 7. Block diagram 7.1 System Block Diagram 7-1 8. Exploded Views & Parts List 8.1 Exploded Views and Parts List 8-1 9. Connection Diagram 9.1 SCX-4200 Connection Diagram 9-1 10. Schematic Diagram 10.1 10.2 10.3 10.3 Main Board OPE Circuit Diagram SMPS-110V SMPS-220V 10-1 10-8 10-9 10-13 11. Reference Information 11.1 11.2 11.3 11.
Precautions 1 1. Precautions In order to prevent accidents and to prevent damage to the equipment please read the precautions listed below carefully before servicing the printer and follow them closely. 1.1 Safety Warning (1) Only to be serviced by appropriately qualified service engineers. High voltages and lasers inside this product are dangerous. This printer should only be serviced by a suitably trained and qualified service engineer.
Precautions 1.2 Caution for safety 1.2.1 Toxic material This product contains toxic materials that could cause illness if ingested. (1) If the LCD control panel is damaged it is possible for the liquid inside to leak. This liquid is toxic. Contact with the skin should be avoided, wash any splashes from eyes or skin immediately and contact your doctor. If the liquid gets into the mouth or is swallowed see a doctor immediately. (2) Please keep toner cartridges away from children.
Precautions 1.2.3 Handling Precautions The following instructions are for your own personal safety, to avoid injury and so as not to damage the printer (1) Ensure the printer is installed on a level surface, capable of supporting its weight. Failure to do so could cause the printer to tip or fall. (2) The printer contains many rollers, gears and fans. Take great care to ensure that you do not catch your fingers, hair or clothing in any of these rotating devices.
Precautions 1.2.5 Disregarding this warning may cause bodily injury (1) Be careful with the high temperature part. The fuser unit works at a high temperature. Use caution when working on the printer. Wait for the fuser to cool down before disassembly. (2) Do not put finger or hair into the rotating parts. When operating a printer, do not put hand or hair into the rotating parts (Paper feeding entrance, motor, fan, etc.). If do, you can get harm. (3) When you move the printer. This printer weighs 12.
Precautions 1.3 ESD Precautions Certain semiconductor devices can be easily damaged by static electricity. Such components are commonly called “Electrostatically Sensitive (ES) Devices”, or ESDs. Examples of typical ESDs are: integrated circuits, some field effect transistors, and semiconductor “chip” components. The techniques outlined below should be followed to help reduce the incidence of component damage caused by static electricity.
Product Specifications 2 2. Product Specification 2.1 Product Overview Item Descriptions Basic Model SCX-4200/SEE Series Model SCX-4200 Market of Sailes Persnal user MFP(Low Price for small work Group.) Specification Remark 18ppm(Ltr. 19ppm), Chorus2(CPU : Use 16/32 Bit RISC Processor) 1K(initial), 3K(sailes) USB 2.
Product Specifications 2.2 Specifications Specfications are correct at the time of printing. Product specifications are subject to change without notice. See below for product specifications. 2.2.1 General Specifications General Power Consumption Noise Warm Up Time Machine Life Approval Device Memory Internal N/W Option Page Counter Print Configuration Sheet Maintenance 2-2 Items Major Features Size (W*D*H) Net Weight(Inc. Toner Cartridge) Net Weight(exc.
Product Specifications 2.2.2 Print Specification PRINT Items Print Speed Print Method Print Language Power Save Resolution Normal RET Toner Save Memory FPOT From Stand by From Cold Status Duplex Print Printable Area Halftone(Gray Scale) SCX-4200 19ppm/Ltr, 18ppm/A4 Laser SPL Yes(5/10/15/30/45min.) 600 x 600 dpi No Yes Remarks LCD Only (Toner Save On/Off Setting method is in the Menu). 8MB Approx. 11 seconds Less than 41 seconds N.A 208 x 273 mm (Letter) 256 levels 2.2.
Product Specifications 2.2.4 Copy Specification COPY Items Copy Quality Selection or Original Image type selection Mode FCOT Copy Speed / Letter Resolution SCX-4200 600x300dpi 600x300dpi 600x600dpi for Platen Approx. 11 seconds Less than 41 seconds 19cpm/Ltr.
Product Specifications 2.2.5 Paper Handiling Specification Paper Handling Items Capacity( 20lbs) Optional Cassette Output Capacity Output Control Paper Size Paper Weight Paper Path Paper Size Compatibility SCX-4200 Main Tray 250sheets Bypass(MP Tray) Single Sheet No Face Down: 50Sheets/20lb Face Up: 1Sheet Face down/Face up Main Tray Legal,A4,Letter, Folio, Executive, B5, A5, A6 Bypass Bypass:Envelope6 3/4, 7 3/4,#9, #10,DL,C5,B5 Main Tray 16~24 lb. Bypass 16~43 lb.
Product Specifications 2.2.6 Other Specification Items Software O.S Driver Application Package and POP POP Quick Reference guide (include Setup Guide and Function Guide) Accessory Owner's manual S/W CD ROM Consumables SCX-4200 Win 2.x Win 95 Win 98&WinME Win NT 4.
System Overview 3 3. System Overview This chapter describes the functions and operating principles of the main components. 3.1 System Outline 3.1.
System Overview 3.1.
System Overview 3.1.
System Overview 3.1.
System Overview 3.1.4.1 Paper Feed Mechanism The printer has a universal cassette which automatically loads paper and a manual feed which supplies paper single sheet at a time. The cassette has a friction pad which separates paper to ensure single sheet feeding, and it has a sensor, which checks when the paper tray is empty.
System Overview 4) Pressure roller The Pressure Roller mounted under the heat roller, it is made of a silicon resin, and the surface of the roller is tubed with Teflon. This ensures that toner does not adhere to the roller surface. 5) Safety Relevant Facts • To prevent overheating - 1st protection device: Hardware cuts off when overheated - 2nd protection device: Software cuts off when overheated - 3rd protection device: Thermostat cuts off mains power to the lamp.
System Overview 3.1.4.6 LSU (Laser Scanner Unit) This is the core of the laser printer. It converts the video data received from the computer into an electrostatic latent image on the surface of the OPC drum. This is achieved by controlling the laser beam and exposing the surface of the OPC drum to the laser light. A rotating polygon mirror reflects the laser light onto the OPC and each side of the mirror is one scan line. The OPC drum turns as the paper feeds to scan the image down the page.
System Overview 3.1.4.7 Toner Cartridge The toner cartridge is an integral unit containing the OPC unit and toner unit.
System Overview 3.2 H/W Structure and Descriptions SCX-4200 is roughly made up Main Control part, Operation Panel part, Scanner part, PC interface part and Power part. Each Part is separated Module which focus on common and standard design of different kind products. The main control part is 1 CPU,1 board adopting Chorus 2 Chip which is exclusive MFP ASIC . Scanner part is composed Platen and is connected with Main Cantroller by Harness. 3.2.
System Overview 3) SDRAM : is used as Page Buffer in Printing, Scan Buffer in Scanning and System Working Memory Area - Size: 8Mbyte - 3.5 MB: System Working Memory Area and Scan Buffer - 4.
System Overview 3.2.2 Scan Part 1) Pictorial signal input part: output signal of CIS passes through Bypass Cap change to ADC at IP Main and defined signal between AFE and IP Main processes the Image signal. When AFE accept each pixel, CDS (Correlated Double Sampling) technique which samples arm-level twice is used on each pixel by using IP signal.
System Overview 3.2.4 Printer Section Printer is consisted of the Engine parts and F/W, and said engine parts is consisted of the mechanical parts comprising Frame, Feeding, Developing, Driving, Transferring, Fusing, Cabinet and H/W comprising the main control board, power board, operation panel, PC Interface. The main controller is consisted of Asic(Chorus2) parts, Memory parts, Engine. Interface parts and it functions as Bus Control, I/O Handling, drivers & PC Interface by CPU.
System Overview Chorus 2 Block Diagram Bus Arbiter Memory I/F ROM/ SRAM DRAM/SDRAM CPU Unit Boundary Scan ARM7TDMI TAP Controller JTAG Write Buffer PRT_TOP ARM7TDMI CPU Core Interrupt Controller Cache 4K Byte General DMA (2-CH) Clock Generator (MPLL) IP_TOP SSB Clock Generator (UPLL) System Bus Bridge & Arbitration / BDMA (2-Ch.) USB v1.
System Overview 3.2.5 Copier Part 1) Copy Mode: 2) Scanner Type: 3) Maximum Size of Original: (max.
System Overview 3.2.6.1 HVPS (High Voltage Power Supply) Transfer High Voltage (THV+) - Input Voltage : 24 V DC 15% - Output Voltage : MAX +5.0KV 5 %,(Duty Variable, no loading ) - Input contrast of the Voltage stability degree : under 3 % (fluctuating input 21.6V~26.
System Overview Supply - Output Voltage : -400 V ~ -800V DC 5%(ZENER using, DEV ) - Input contrast of the output stability degree : under Loading contrast : 5 % or less - Output Voltage Rising Time: 50 ms Max - Output Voltage Falling Time: 50 ms Max 3% - Output Loading Range: 10 M ~ 1000 M - Output Control Signal (BIAS-PWM): the CPU is HV output when PWM is low. 3.2.6.2 SMPS (Switching Mode Power Supply) It is the power source of entire system.
System Overview Consumption Power NO ITEM CH1(+5V) CH2(+24V) CH3(+24VS) System 1 Stand-By 0.2A 0.07A 0.07 A AVG : 100 Wh 2 PRINTING 1.0A 0.5A 1.0 A AVG 350 Wh 3 Sleep-Mode 0.2A 0.02A 0.03A AVG : 10 Wh Length of Power Cord : 1830 50mm Power Switch: Use Feature - Insulating Resistance: 100 or more (at DC 500V) - Insulating revisiting pressure: Must be no problem within 1 min. (at 1,000V-LV / 1,500Vac-HV,10mA) - Leaking Current: under 3.
System Overview 3.2.7 FUSER AC POWER CONTROL Fuser(HEAT LAMP) gets heat from AC power. The AV power controls the switch with the Triac, a semiconductor switch. The ‘ON/OFF control’ is operated when the gate of the Triac is turned on/off by Phototriac (insulting part). In other words, the AC control part is passive circuit, so it turns the heater on/off with taking signal from engine control part.
System Overview 3.3 S/W Structure and Descriptions 3.3.1 Architecture The following diagram shows the Engine Control System. Main F/W of the printer controller Device Units Engine Firmware Fuser Unit Print Interface Control Module Power On Initial Engine Print Processing Control Module LSU HVPS Fan Unit Engine Unit Control Module Motors Solenoid & Clutch Hardware Devices & Mechanical Device Sensors signals Fig 1.
System Overview 3.3.2 S/W Overview Engine Control F/W is executed every 10msec by the timer interrupt of the main system. And it consists of 4 control modules. Power on Initial, Engine Print Processing Control, Print Interface Control and Engine Unit Control Module. Major operations of the Printer Engine Control F/W are following.
System Overview 3.3.2.4 Engine Unit Control Module Engine Unit Control Module consists of 4 sub-functions. The first function is a fixing unit control function. At this function, it controls the temperature of a fixing unit for regulating temperature of the unit within a fixed range that is set following paper type and number of printout. The second function is a fan control function that controls operation of fan unit. And the third function is a sensor status management function.
System Overview 3.3.3 Functional Requirements of Fixing Unit (Fuser) Handling The fixing control depends on its fixing mechanism. And according to a paper type, a paper size, an elapsed printed time, or the number of accumulated Printing Pages, a fixing control is different. Moreover, it may be different according to hardware specs, which are a flicker, an inner temperature and so on. 3.3.3.1 Print Mode There are warm-up, stand-by, printing, error and sleep mode in the print mode.
System Overview 3.3.3.6 Temperature in the Stand-By mode At the stand-by mode, the engine controls the temperature of the fixing unit for maintaining a specified temperature for reducing printing time of the first page. Moreover, the temperature depends on an environment condition. For example, normally the temperature in low temperature and low marshy place is maintained higher than that in normal temperature and normal marshy place. 3.3.3.
System Overview 3.3.4 Functional Requirements for LSU Control LSU receives the image data from PVC and make the latent image on OPC surface. It uses the single beam . The Eiger has many different registers for LSU. These registers are in manual book of CHORUS2, the CPU of the Eiger. 3.3.4.1 LSU Ready Check The Eiger will pick up the paper when the LSU is ready.
System Overview 3.3.5 Functional Requirements of Environment Recognition It is intended to gain the index to indicate the inner environment in a present machine. The engine is divided into several levels with the index. It is used to control high-voltage values deciding the warm-up time, the fixing temperature and high voltage value to supply to the developer unit. 3.3.5.1 Transfer Roller There are two cases to recognize the environment for taking the environmental index.
System Overview 3.3.6 Functional Requirements of HVPS Control The engine supplies the developer unit with high voltage through the HVPS unit in order to form the image on the paper fed through the paper pass. So the engine-control f/w supplies the high voltage to the developer unit at the specified time and position of the paper during the printing process. The HVPS unit is controlled by PWM. The output voltage is determined by PWM duty. For reference, PWM cycle is about 14 KHz presented by the power team.
System Overview 3.3.8 Functional Requirements of Toner Cartridge 3.3.8.1 Installation Toner Cartridge The engine of the Eiger doesn’t check it but the main f/w checks it. The method to check whether it is new or old is the crum. The crum stores the ID, the opc cycle, the toner consumption and so on. 3.3.8.2 Toner Save This function is to save the toner consumption. The methods to save toner are three.
System Overview 3.3.13 Checking Paper jam Paper Jam happens when a paper is not fed to required position by a mechanical obstacle. The paper jam is decided by checking the states of sensors while moving the paper. There are a feed sensor and an exit sensor in the paper-feeding path. The jam is classified to 3 types according to the position of the paper. 3.3.13.1 Paper Jam 0 This is the status that the paper doesn’t arrive in the feed sensor.
System Overview 3.3.15 Temperature 3.3.15.1 Open Heat Error When the engine operates the warm-up process, if the temperature of the fixing unit is not higher than a specified temperature, the engine defines Open Heat Error. When this error is broken out, the engine stops all functions and keeps the error state. Also, the engine informs the error status of the main system. And then the error message is displayed at LCD window informing the error status of the user. 3.3.15.
System Overview 3.3.16 LSU Error The errors related to LSU are as follows: By LReady: When the printing is started, the engine drives the polygon motor of LSU. After the specified time is elapsed, if the motor is not in a ready status, the engine detects the error that the polygon motor is not in a ready status. If this error happens, the engine stops all functions and keeps it at the error state.
Alignment and Adjustmens 4 4. Alignment and Adjustments This chapter describes some of the main service procedures including: Using the EDC mode; Clearing paper jam and test patterns. Much of this chapter is also included in the user's guide. 4.1 Engine Test Mode The Engine Tests Mode supplies useful functions to check the condition of the engine. It tests the condition of each device and displays the result of the test on the LCD. It is classified into 5 functions (0~4), and are shown below. 4.1.
Alignment and Adjustmens 4.2 Paper Path SCAN PART Paper Input (Cassette) Paper Empty Sensor (Manual) Paper Input (Manual Feeder) Paper Empty Sensor (Cassette) Paper Out (Face Down) Paper Feeding Sensor Paper Out (Face Up) Paper Exit Sensor SCAN PART SCAN PART SCAN PART 1) After receiving a print command, the printer feeds paper from the main cassette or manual feeder as required. 2) The paper being fed passes the paper feed sensor.
Alignment and Adjustmens 4.3 Clearing Paper Jams When a paper jam occurs, "Paper Jam" appears on the display. Refer to the table below to locate and clear the paper jam. Message Location of Jam PAPER JAM 0 OPEN/CLOSE DOOR In the paper tray PAPER JAM 1 OPEN/CLOSE DOOR In the paper exit area PAPER JAM 2 CHECK INSIDE In the fuser area or around the toner cartridge BYPASS JAM In the manual feeder To avoid tearing the paper, pull the jammed paper out gently and slowly.
Alignment and Adjustmens 4.3.2 In the Paper Exit Area 1 Open and close the front cover. The jammed paper is automatically ejected from the machine. If the paper is not ejected continue to step 2. 6 Open the rear cover. 7 Remove the jammed paper by gently pulling it straight out. 2 Gently pull the paper out of the front output tray. Skip to step 9. If you cannot see the jammed paper in the front output tray, continue to step 3. 3 Open the jam cover by lifting the front edge of the scanner unit.
Alignment and Adjustmens 4.3.3 In the Fuser Area or Around the Toner Cartridge NOTE: The fuser area is hot. Take care when removing paper from the machine. 2 Remove the jammed paper by gently pulling it straight out. 1 Open the front cover and lightly push down on the cartridge then pull to take it out. 3 Replace the toner cartridge and close the front cover. Printing automatically resumes. 4.3.
Alignment and Adjustmens 4.4 Printing the System Data List Your machine can print the system data report which shows the status of the user-selectable options. You may print this list to confirm your changes after changing any settings. To print the system data list: 1 Press Menu until "Report" appears on the top line of the display. "System Data" appears on the bottom line. 2 Press Start The system data list prints out. 4.
Alignment and Adjustmens 4.7 Consumables and Replacement Parts The cycle period outlined below is a general guideline for maintenance. The example list is for an average usage of 50 transmitted and received documents per day. Environmental conditions and actual use will vary these factors. The cycle period given below is for reference only.
Alignment and Adjustmens 4.9 Periodic Defective Image If a mark or other printing defect occurs at regular intervals down the page it may be caused by a damaged or contaminated roller. Measure the repetition interval and refer to the table below to identify the roller concerned. No Roller Defective image Typical defect 1 OPC Drum 75.5mm white spot on black image or black spot 2 Charge Roller 37.8mm black spot 3 Supply Roller 44.
Alignment and Adjustmens 4.10 Error Message Display Meaning Suggested solutions Door Open The front cover is not securely latched. Close the cover until it locks into place. Hsync Error A problem has occurred in the LSU (Laser Scanning Unit). Unplug the power cord and plug it back in. If the problem persists, please call for service. [Invalid Cartridge] There is invalid foner install. Installed authorized toner cartridge. Low Heat Error There is a problem in the fuser unit.
1st level Menu 2nd level Upper Level -- Left/Right && Enter --ඖ 1.Reduce/Enlarge 1 2.Darkness 3.Original Type 4.Special Copy 5.Toner Save 1 2 3 1 2 3 1 2 3 4 5 6 1 2 3rd level 16 Character Original(100%) A4ױLTR(94%) EXEױLTR(104%) 50% 150% 200% Custom:50-200% Normal Dark Light Text Text/Photo Photo Off Clone Auto Fit 2 Sides in 1 pg 2 UP Poster On Off Paper Size Left/Right Enter Paper Type 2 Default-Change 8.Report 1 2 1 Timeout System Data Language 1 9.Machine Setup 2 3 1 0.
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Disassembly and Reassembly 5 5. Disassembly and Reassembly 5.1 General Precautions on Disassembly When you disassemble and reassemble components, you must use extreme caution. The close proximity of cables to moving parts makes proper routing a must. If components are removed, any cables disturbed by the procedure must be restored as close as possible to their original positions. Before removing any component from the machine, note the cable routing that will be affected.
Disassembly and Reassembly 5.2 Front Cover 1. Take the Cassette out of the printer. 3. To remove the Front Cover, first pull the part below the right side of the Front Cover with a light pressure to the direction of arrow and then remove the Front Cover, as shown below. Cassette 2 1 2. Open the Front Cover.
Disassembly and Reassembly 5.3 Rear Cove 1. Remove the four screws securing the Rear Cover, as shown below. 3. If necessary, remove the Rear Door in the direction of arrow, as shown below. Rear Door 2. To remove the Rear Cover make sure the Power Switch doesn't get jammed to Rear Cover and then Unplug the one connector(DC Fan) from the Main PBA, as shown below.
Disassembly and Reassembly 5.4 DC Fan 1. Before you remove the DC Fan, you should remove: - Rear Cover (Refer to 5.3) 3. Pull the DC Fan out of the Rear Cover. 2. First release the harness from the Harness Holder and then remove the one screw securing the Harness Holder and remove it, as shown below.
Disassembly and Reassembly 5.5 Right Side Cover 1. Before you remove the Right Side Cover, you should remove: - Front Cover (Refer to 5.2) - Rear Cover (Refer to 5.3) 4. Unplug the connector(Micro Switch) from the SMPS, as shown below. 2. Remove the one screw at the front of the unit. 3. Apply light pressure to the back of the Right Side Cover and pull it to the right side in the direction of arrow, as shown below. 5. If necessary, remove the one screw securing the Micro Switch and remove it.
Disassembly and Reassembly 5.6 Left Side Cover 1. Before you remove the Left Side Cover, you should remove: - Front Cover (Refer to 5.2) - Rear Cover (Refer to 5.3) 2. Remove the one screw at the front of the unit. 3. Apply light pressure to the back of the Left Side Cover and pull it to the left side in the direction of arrow, as shown below.
Disassembly and Reassembly 5.7 Scanner Unit 1. Before you remove the Scanner Unit, you should remove: - Front Cover (Refer to 5.2) - Rear Cover (Refer to 5.3) - Right Side Cover (Refer to 5.5) - Left Side Cover (Refer to 5.6) 4. Lift the Platen Cover upward and remove it. Platen Cover 2. Unplug the two connectors(Scan Motor, OPE Unit) and CIS FFC from the Main PBA, as shown below. CIS FFC Scan Motor Scanner Unit OPE 5.
Disassembly and Reassembly 6. Remove the two screws securing the Scan Upper Unit. 8. Using the right hand to push the Idle Pulley from right to left, and the left hand to lift and remove the Belt. 2 Belt 1 7. Release the seven hooks securing the Scan Upper Unit to the Scan Lower Unit and remove it, as shown below. 9. When removing CIS FFC, note that the cable is taped to the Scan Lower Unit. Then take the CIS(with Carriage, Belt, CIS FFC) out of OPE Lower Unit.
Disassembly and Reassembly 11. To remove Belt using a screw driver, remove the Belt Clip at the center of the Carriage and remove the Belt, as shown below. 13. Remove the Idle Pulley in the direction of arrow, as shown below. Spring ETC Belt Pulley Idle Pulley Bracket Carriage Belt Belt Clip 12. Take the CIS Shaft out of OPE Lower Unit and then remove the three screws securing the Scan Motor Ass'y and remove it.
Disassembly and Reassembly 5.8 OPE Unit 3. Remove the three scrrews securing the OPE PBA and remove it. Platen Cover LCD Cap OPE PBA 1. Lift the Platen Cover upward and remove it. 2. To remove OPE Unit, first pull the part below the front of the OPE Unit with a light pressure to the direction of arrow. 4. Release the Keys.
Disassembly and Reassembly 5.9 Middle Cover Unit 1. Before you remove the Middle Cover Unit, you should remove: - Scanner Unit (Refer to 5.7) 2. Remove the four screws securing the Middle Cover Unit and remove it, as shown below.
Disassembly and Reassembly 5.10 Fuser 1. Before you remove the Fuser, you should remove: - Rear Cover (Refer to 5.3) 2. Unplug the two connectors from the Main PBA and SMPS, as shown below. 4. Remove the two screws securing the Thermostat and then release the Fuser Harness and Fuser Joint Harness from both side of the Thermostat, as shown below. Then take the Thermostat out of the Fuser. Thermostat Fuser Harness Fuser Joint Harness 3. Remove the four screws securing the Fuser and remove it. Fuser 5.
Disassembly and Reassembly 6. Remove the one screw securing the Gear RDCN(25/15) and remove it. 8. Unwrap the Thermistor Harness, as shown below. Thermister Harness Gear RDCN(25/15) 9. Remove the Thermistor from the Fuser Cover. 7. Remove the four screws and divide the Fuser into two parts.
Disassembly and Reassembly 5.11 Exit Roller 1. Before you remove the Exit Roller, you should remove: - Scanner Unit (Refer to 5.7) - Middle Cover Unit (Refer to 5.9) 2. Remove the Exit Gear and Bearing using a screw driver at one end then remove the shaft and rollers, as shown below.
Disassembly and Reassembly 5.12 LSU 1. Before you remove the LSU, you should remove: - Scanner Unit (Refer to 5.7) - Middle Cover Unit (Refer to 5.9) 4. Unplug the four screws and take the LSU out. LSU 2. Remove the one screw securing the CAP LSU and remove it. CAP LSU 3. Unplug the two connectors from the LSU.
Disassembly and Reassembly 5.13 Fan 1. Before you remove the Fan, you should remove: - Front Cover (Refer to 5.2) - Rear Cover (Refer to 5.3) - Right Side Cover (Refer to 5.5) 2. Unplug the connector from the SMPS and remove the one screw. Then take out the Fan. DC Fan 5.14 Drive Ass'y 1. Before you remove the Drive Ass'y, you should remove: . Front Cover (Refer to 5.2) . Rear Cover (Refer to 5.3) . Left Side Cover (Refer to 5.6) 3. Unplug the connector from the Drive Motor, as shown below.
Disassembly and Reassembly 5.15 Engine Shield Ass'y 1. Before you remove the Engine Shield Ass'y, you should remove: - Scanner Unit (Refer to 5.7) - Fuser Connectors (Refer to 5.10.2) 2. Remove the eleven screws securing the Engine Shield Ass'y and unplug the all connectors. Then remove the Engine Shield Ass'y. hield Ass'y 5.16 Main PBA 1. Before you remove the Main PBA, you should remove: - Engine Shield Ass'y (Refer to 5.15) 2. Unplug the Engine Harness and remove the two screws from the Main PBA.
Disassembly and Reassembly 5.17 SMPS 1. Before you remove the SMPS, you should remove: - Engine Shield Ass'y (Refer to 5.15) 4. Remove the three screws and take the SMPS out. SMPS 2. Remove the two screws then take the Inlet Bracket out, as shown below. Inlet Bracket 3. Unplug the Engine Harness from the SMPS and then remove the one screw securing the ground cable, as shown below.
Disassembly and Reassembly 5.18 CRUM PCB 1. Before you remove the CRUM PCB, you should remove: - LSU (Refer to 5.12) - Engine Shield Ass'y (Refer to 5.15) 2. Remove the four screws securing the CRUM PCB and remove it, as shown below.
Disassembly and Reassembly 5.19 Transfer Roller 1. Before you remove the Transfer Roller, you should remove: - Scanner Unit (Refer to 5.7) - Middle Cover Unit (Refer to 5.9) - LSU (Refer to 5.12) 4. Unlatch the Bush and remove it. Then lift the Transfer Roller out, as shown below. Transfer Roller Bush 2. Remove the three screws and take the Transfer Earth out. Transfer Earth 3. Unplug the PTL PBA Harness then remove the PTL Holder and PTL Lens, as shown below.
Disassembly and Reassembly 5.20 Feed Roller 1. Before you remove the Feed Roller, you should remove: - Middle Cover Unit (Refer to 5.9) - LSU (Refer to 5.12) - Drive Ass'y (Refer to 5.14) 4. Remove the three screws from the Feed Bracket and take it out. Feed Bracket 2. Remove the two screws from the Guide Paper and take it out. Guide Paper 5. Remove the Idle Gear and Feed Gear2. Feed Gear2 3. Pull up the Feed Idle Bush and Feed Idle Shaft, as shown below.
Disassembly and Reassembly 6. Remove the Feed Gear1 Ass'y, as shown below. Feed Gear1 Ass'y 7. Pull the Feed Roller and Feed Roller1, as shown below.
Disassembly and Reassembly 5.21 Pick Up Roller & Solenoid 1. Before you remove the Pick Up Roller & Solenoid, you should remove: - Middle Cover Unit (Refer to 5.9) - LSU (Refer to 5.12) - Drive Ass'y (Refer to 5.14) - Feed Bracket and Gear (Refer to 5.19 steps 4~6) 4. Remove the two screws and then remove the Regi Solenoid and Pick Up Solenoid. 2. Remove the Pick Up Gear Ass'y, as shown below. (Pick Up) Solenoid Pick Up Gear Ass'y (Manual) Solenoid 3.
Disassembly and Reassembly 5-24 Service Manual Samsung Electronics
Troubleshooting 6 6. Troubleshooting 6.1 Printing Problems – Causes and Solutions 6.1.1 Vertical Black Lines and Bands • Description 1. Straight thin black vertical lines occur in the printing. 2. Dark black vertical bands occur in the printing. Check and Cause Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Solution 1. Damaged developer roller, deformed Doctor-blade in the Toner cartridge. 1. Replace the toner cartridge and test again. 2.
Troubleshooting 6.1.3 Horizontal Black Bands • Description 1. Dark or blurry horizontal stripes occur in the printing periodically. (These may occur at regular intervals down the page.) Check and Cause Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Solution 1. Bad contacts on the toner cartridge high voltage terminals. 1. Clean all HV terminals on the cartridge and on the set frame. Ensure all toner or paper dust particles are removed. 2.
Troubleshooting 6.1.5 Light Image • Description The printed image is light, with no ghost. Check and Cause Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Solution 1. Toner Save mode enabled 1. Ensure the Toner Save mode is off. Check set and driver settings. 2. Develop roller is contaminated or the toner cartridge is almost empty. 2. Replace the toner cartridge and try to print out again. 3. Ambient temperature is below than 10°C. 3.
Troubleshooting 6.1.7 Uneven Density • Description Print density is uneven between left and right. Check and Cause Solution 1. The pressure force on the left and right springs of the transfer roller is not even, the springs are damaged, the transfer roller is improperly installed, or the transfer roller bushing or holders are damaged. 1. Replace both the left and right bush and spring assemblies. 2. The life of the Toner cartridge has expired. 2. Replace the toner cartridge and try to print out 3.
Troubleshooting 6.1.9 Ghost (1) • Description Check and Cause 75.5 mm Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Ghost occurs at 75.5 mm intervals of the OPC drum in the whole printing. 1. Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the electrode of the Toner cartridge. Solution 1 and 2. Clean all HV contacts, If problem persists replace the HVPS.
Troubleshooting 6.1.11 Ghost (3) • Description Check and Cause Fuser contamination. 64 mm Digital Digital Printer Printer Digital Digital Printer Printer Ghost occurs at 64 mm intervals. Digital Digital Printer Printer Solution 1. Disassemble the fuser and remove any contamination on the rollers. Clean any contamination from between the Thermistor and the Heat roller. (Caution: Take care not to deform the rollers.) 6.3.
Troubleshooting 6.1.14 Stains on Back of Page • Description The back of the page is stained at 45.3 or 75.3 mm intervals. Digital Digital Pri Digital Printer Digital Printer Digital Printer Check and Cause Solution 1. 45.3mm : Transfer roller is contaminated. 1. Perform the OPC Cleaning Mode Print 2 or 3 times. Run Self-Test to remove the contamination from the transfer roller. Note. Replace the transfer roller if contaminated severely. 2. 75.3mm : Pressure roller is contaminated. 2.
Troubleshooting 6.2 Copy Problems 6.2.1 White Copy • Description Blank page is printed out when copying. Check and Cause Solution 1. Check the Scanner Cover is properly closed. 1. Room light can pass through a thin original. 2. Check shading profile. 2. Redo shading profile in the tech mode. 3. Check white/black reference voltage on Main PBA. e.q • CIS_SI, CIS_CLK at CN8 • Or Check the FFC 3. Replace CN8 if it is defective. • CN8-Pin6(CIS-SI) • CN8-Pin7(CIS-CLK) 6.2.
Troubleshooting 6.2.3 Abnormal noise • Description There is noise from the Platen when copying. Check and Cause 1. Check the Scan Motor and gesr. Solution 1. Check for correct assembly of gear and motor. Ensure no parts are fouling and there are no foreign objects in the mechanism or scanner path. Replace any worn parts 2. Check the Motor Driver on Driver PBA. 2. Replace the main PBA. 6.2.
Troubleshooting 6.3 Paper Feed problems – Causes and Solutions 6.3.1 Wrong Print Position • Description Printing begins at wrong position on the paper. Check and Cause Solution Wrong sensor timing caused by defective feed sensor actuator. Replace the defective actuator 6.3.2 JAM 0 1. Paper does not exit from the cassette. 2. Jam-0 occurs when the paper feeds into the printer. • Description Check and Cause L S U Fuser Toner Cartridge CR DR EXIT Sensor OPC PR 2.
Troubleshooting 6.3.3 JAM 1 1. Paper is jammed in front of or inside the fuser. 2. Paper is stuck in the exit roller and in the fuser just after passing through the Actuator-Feed. • Description Check and Cause Solution L S U Fuser Toner Cartridge CR DR EXIT Sensor OPC PR SR PTL 1. Replace the Exit-Sensor, SMPS or main PBA. 2. If the recording paper is stuck in the exit roller and the fuser just after passing through the Actuator-Feed, Feed Actuator may be defective. 2.
Troubleshooting 6.3.5 Multi-Feeding • Description Multiple sheets of paper are fed at once. Check and Cause Solution 1. Check that the paper size guides are set correctly (cassette and MPF tray). 1. Adjust paper guides. 2. Solenoid malfunction (the solenoid does not work properly). 2. Replace the solenoids or PBA as appropriate. 3. Friction Pad is contaminated. 3. Clean the friction pad rubber with a soft cloth dampened with IPA (Isopropyl Alcohol) or water. 4. Paper has a rough surface texture.
Troubleshooting 6.3.7 Paper rolled on the OPC Drum • Description Paper is rolled up in the OPC. Check and Cause Solution 1. Paper is too thin. 1. Use paper that conforms to the printer specification. 2. The face of paper is curled. 2. Ensure paper is stored properly to prevent curl. Note. To remove paper rolled in the OPC. • Remove the toner cartridge from the set, taking care not to touch the green surface. Use the gearwheel at the side to rotate the OPC drum and pull the paper from the cassette.
Troubleshooting 6.4 Printer Faults – Causes and Solutions 6.4.1 Fuser Error • Description A message "Open Heat Error/Over heat/Heating Error' is displayed in the LCD panel. Check and Cause Solution 1. Thermostat, fuser power cable or heat lamp is open circuit. 1. Replace the whole fuser assembly if the thermostat is open circuit. 2. Thermistor is open circuit. 2. Replace the whole fuser assembly if the thermistor sensor is faulty. 3. Heat lamp ON/OFF test 3. Replace the fuser. 4.
Troubleshooting 6.4.3 Fuser gear melts due to overheating causing Paper Jam. • Description Constant Jam where paper is entering Fuser unit. Fuser rollers do not turn Check and Cause 1. Check the Heat Lamp, thermostat and thermistor Solution 1. Use EDC Mode to test the fuser. Replace Fuser unit Replace SMPS or Main PBA as appropriate. 6.4.4 Paper Empty • Description Paper Empty is displayed in the LCD panel even when paper is loaded in the cassette. Check and Cause Solution 1.
Troubleshooting 6.4.5 Paper Empty without indication • Description The paper empty message does not appear in the LCD when the paper cassette is empty. Check and Cause Solution 1. Deformed paper sensor actuator or faulty sensor. 1. Replace the defective actuator. 2. SMPS PBA or Main PBA is defective . 2. Replace the SMPS PBA or MAIN PBA as appropriate 6.4.6 Cover Open • Description The Cover Open message appears on the LCD even when the print cover is closed. Check and Cause Solution 1.
Troubleshooting 6.4.7 No error message when the cover is open • Description The Cover Open message does not appears on the LCD even when the print cover is open. Check and Cause 1. The ‘Open Cover’ microswitch may be stuck or faulty 2. Check the connector and cables between Switch and main PBA. Solution 1. Use TECH mode(“cover sensor test”) to check cover switch operation. Check and replace switch if necessary. 2. Replace the Main Control board or Cover Open S/W as necessary.
Troubleshooting 6.4.8 Defective motor operation • Description Main motor is faulty and paper does not feed into the printer, resulting in Jam 0' Check and Cause 1. The main motor harness or Motor PCB may be faulty. Solution 1. Check the motor harnesses and connectors, replace if defective.. If the problem persists replace the main PBA. Note Check motor operation using EDC Mode. 6.4.9 No Power • Description When system power is turned on the LCD panel does not come on. Check and Cause Solution 1.
Troubleshooting 6.4.10 Printed Vertical Lines become curved • Description When printing, vertical lines are not straight. Check and Cause 1. Check stability of 24V supply to LSU. Solution 1. 24V stable - Replace LSU. 24V unstable replace SMPS, if the problem persists replace the main PBA.
Troubleshooting 6.5 Toner Cartridge Service Only toner cartridges supplied by Samsung should be used. Printing defects or set damage caused by the use of non-approved toner cartridges or un-licensed toner refills are not covered by the guarantee. 6.5.1 Precautions on Safe-keeping of Toner Cartridge Excessive exposure to direct light for more than a few minutes may cause damage to the cartridge. 6.5..
Troubleshooting 6.5.4 Signs and Measures of Poor toner cartridge Fault Light image and partially blank image (Cartridge life is ended.) Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Signs • The printed image is light or dirty and untidy. • Parts of the image are not printed. • Periodically a "tick tick" noise occurs. Cause & Check 1. If the image is light or dirty and untidy - Shake the toner cartridge and then recheck. OK: Lack of toner, so the life is nearly expired.
Troubleshooting Fault White Black spot Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Signs • Light or dark black dots on the image occur periodically. • White spots occur in the image periodically. Cause & Check Solution 1. If light or dark black dots occur at regular intervals this is because the toner cartridge rollers are contaminated with foreign substance or paper particles. (1)37.8mm interval : Charge roller (2)75.5mm interval : OPC cycle 1.
Troubleshooting Fault Ghost & Image Contamination Signs Cause & Check Solution • The printed image 1. The printed image is too light is too light or dark, or dark, or partially or partially contaminated black. contaminated black. (a) Check if foreign substance or toner are stuck to the • Totally terminals (point of contact) contaminated black. of the toner cartridge or set. (Black image (b) Check if the terminal printed out) assembly is normal. 1.
Troubleshooting 6.6 Software Problems – Causes and Solutions 6.6.1 The printer is not working (1) • Description While Power turned on, the printer is not working in the printing mode. Check and Cause Solution 1. Run Self-Test Mode: using the menu buttons print the test page. (Menu, Enter, Enter). 1. If the test print works that means there are no problems in the printer itself.
Troubleshooting 6.6.3 SPOOL Error • Description SPOOL (simultaneous peripheral operations online) is the process Windows uses to manage print jobs. Jobs are processed and then stored on the hard disk until the printer is ready to accept them Check and Cause Solution 1. Insufficient space on the hard disk in the directory assigned for the basic spool. 1. Delete any unnecessary files to provide more space for spool storage. 2. If previous printing errors were not solved. 2.
Samsung Electronics PC LED FAN 2 MP Solenoid Pickup Solenoid OPE HC 48C50 Thermostat Fuser Thermistor SDRAM 8MB FLASHROM 29LV800 USB2.0 Video CLK 16.59MHz Main CLK 10.00MHz D(0:15) A(1:20) CY25814 CY25811 UART FAN 1 TRIAC P/Empty Sensor Chrous2 24V/5V REG CIS Scan Motor Main Motor LSU SMPS HVPS Exit Sensor 5V RESET IC REG MP Sensor 3.3V 1.8V 3.3V Motor Drv . A3977 Motor Drv .
Exploded Views & Parts List 8 8. Exploded Views and Parts List (SCX-4200/XAX) Contents 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 Main Exploded View Housing Base Exploded View Frame Assembly Exploded View Fuser Unit Exploded View Drive Assembly Exploded View Scan Assembly Exploded View OPE Assembly Exploded View Cassette Assembly Exploded View 8-2 8-3 8-4 8-5 8-6 8-7 8-8 8-9 Part Number & Description format. Part numbers and descriptions are defined according to a company standard.
Exploded Views & Parts List A 12 14 20 9 19 16 15 11-3 17 0 11-1 11-2 10 B 8 19 7 6 1 18 4 3 13 2 22 21 23 8.
Exploded Views & Parts List 8.2.
8-4 Service Manual 46-2 44 46-1 57 56 60 43 46-4 42 46-3 B 47 41-1 46-5 58 59 41-2 45-1 45-2 48 41-3 22 38 41-5 41-6 41-7 30 51 54 41-4 50 66 53 52 41-4 63 61 71 A 49 56 57 45-3 64 65 39 40 C 62 27 34 55 37 31 38 35 67 33 28 12 36 13 12 32 13 Transfer Roller 14 15 4 29 5 6 24 22 68 17 16 8 23 10 9 7 19 11 0 2 18 1 25 30 6 69 5 20 26 21 70 3 Exploded Views & Parts List 8.3.
Exploded Views & Parts List 1 2 25 26 27 29 22 21 23 16 17 24 0 19 20 15 28 31 10 9 18 7 8 14 11 13 30 6 4 5 3 12 8.4.
Exploded Views & Parts List 8.5.
Exploded Views & Parts List 9 17 15 22 7 12 13 14 A 23 18 16 26 18 0 20 24 21 8 11 10 25 5 3 6 2 3 1 4 8.6.
Exploded Views & Parts List 8.7.
Exploded Views & Parts List 8.8.
ΒΣΥΤ͑ͽΚΤΥ Service Parts List(Model: SCX-4200/XAX) SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE Drawer# 8.1-1 8.1-2 8.1-3 8.1-5 8.1-6 8.1-7 8.1-8 8.1-9 8.1-A 8.1-10 8.1-11-1 8.1-11-2 8.1-11-3 8.1-12 8.1-13 8.1-14 8.1-15 8.1-16 8.1-17 8.1-18 8.1-18-A 8.1-19 8.1-20 8.1-22 8.1-23 8.1-24 8.2-1 8.2-1-1 8.2-1-2 8.2-1-3 8.2-1-4 8.2-1-5 8.2-1-6 8.2-2 8.2-2-1 8.2-2-2 8.2-2-3 8.2-2-4 8.2-2-5 8.2-3 8.2-3-1 8.2-3-2 8.2-4 8.2-5-1 8.2-5-2 8.3-0 8.3-1 8.3-2 8.3-3 8.3-4 8.3-5 8.3-6 8.3-7 8.3-8 8.3-9 8.3-10 8.3-11 8.
ΒΣΥΤ͑ͽΚΤΥ SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE Drawer# 8.3-20 8.3-21 8.3-22 8.3-23 8.3-24 8.3-25 8.3-26 8.3-27 8.3-28 8.3-29 8.3-30 8.3-31 8.3-33 8.3-34 8.3-35 8.3-37 8.3-38 8.3-39 8.3-40 8.3-40-1 8.3-41-2 8.3-41-3 8.3-41-4 8.3-41-5 8.3-41-6 8.3-41-7 8.3-41-8 8.3-42 8.3-43 8.3-44 8.3-45-1 8.3-45-2 8.3-45-3 8.3-B 8.3-46-1 8.3-46-2 8.3-46-3 8.3-46-4 8.3-47 8.3-48 8.3-49 8.3-50 8.3-51 8.3-52 8.3-53 8.3-54 8.3-55 8.3-56 8.3-57 8.3-58 8.3-59 8.3-60 8.3-61 8.3-62 8.3-63 8.3-64 8.3-65 8.3-66 8.
ΒΣΥΤ͑ͽΚΤΥ SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE Drawer# 8.4-14 8.4-15 8.4-16 8.4-17 8.4-18 8.4-19 8.4-20 8.4-21 8.4-22 8.4-23 8.4-24 8.4-25 8.4-27 8.4-28 8.4-29 8.4-30 8.4-S1 8.4-S1 8.4-S1 8.4-S1 8.4-S1 8.4-S4 8.5-1 8.5-2 8.5-3 8.5-4 8.5-5 8.5-6 8.5-7 8.5-8 8.5-9 8.5-10 8.5-11 8.5-12 8.5-13 8.6-1 8.6-2 8.6-3 8.6-4 8.6-5 8.6-6 8.6-7 8.6-8 8.6-9 8.6-A 8.6-10 8.6-11 8.6-12 8.6-13 8.6-14 8.6-15 8.6-16 8.6-17 8.6-18 8.6-20 8.6-21 8.6-22 8.6-23 8.6-24 8.6-25 8.6-26 8.6-27 8.6-28 8.6-C 8.7-1 8.
ΒΣΥΤ͑ͽΚΤΥ SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE Drawer# 8.7-10 8.8-1 8.8-2 8.8-3 8.8-4 8.8-5 8.8-6 8.8-7 8.8-8 8.8-9 8.8-10 8.8-11 8.8-12 8.8-13 8.8-14 8.8-15 8.8-16 8.8-17 8.8-18 8.8-19 8.
ΒΣΥΤ͑ͽΚΤΥ SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE Drawer# #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A SEC_Code JC68-10934F JC69-00933A JC69-00933B JC92-01477A JC94-01097A JC96-03806A
ΒΣΥΤ͑ͽΚΤΥ SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE Drawer# #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A SEC_Code Description&Specification 2401-000426 C-AL;10uF,20%,16V,GP,TP,3.
ΒΣΥΤ͑ͽΚΤΥ SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE Drawer# #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A SEC_Code Description&Specification 3711-003411 HEADER-BOARD TO CABLE;BOX,5P,1R,2mm,STRA JC07-00003A LCD-DISPLAY(XEV);VHX1620BHRC9,SCX-5312F/ JC39-00306A CBF HARNESS-LCD;CLP-500,WIRE,UL2877,14-1 JC39-00560A HARNESS-SWITCH;SCX-4200,CBF
1: 2: 3: 4: 5. Samsung Electronics CDRH S/ W PTL THERMISTOR OP_PANEL MP_CLUTCH MAIN_CLUTCH 14: 15: 16: 17: 18: 19: 20: 21: 22: 23: 24: 25: 26: GND OPE_RX OPE_RST OPE_T X 5V 1: 3.3V 2: PT L 1: 2: 3: 4: 5. 1: 24VS 2: MP_CLUT CH 1: M_CLUT CH 2: N.C 3: 24VS 24V LSU_5V T HV_READ LSU_5V nT HV_PWM T HV_EN nBIAS_PWM MHV_PWM LSU_5V 5V FAN FUSER_ON P_EXIT MAIN CONTOLLER CIS_SIG 3.3VS GND 3.3VS Vref CIS_SI 1: 2: 3: 4: 5: 6: 1: FAN2 2: NC 3: 24VS A B A/ B/ A B A/ B/ 1: 2: 3: 4: 1: 2: 3: 4: 3.
Schematic Diagram 10. Schematic Diagrams 10.1 Main Board(1/7) Sheet 1 2 3 4 5 6 7 8 9 10 11 12 Description INDEX ASIC (CHORUS 2) SDRAM, FLASH ROM LSU, SMPS, PANEL, COVER OPEN CIS, SCAN MOTOR FUSER, MAIN MOTOR, CLUTCHES PTL, FAN2 USB2.0, CRUM Eiger Main controller REV 0.3 == MEMO == Service Manual Samsung Electronics This Document can not be used without Samsung’s authorization.
Main Board(2/7) Schematic Diagram L5 INSTPAR 10-2 L4 INSTPAR Service Manual This Document can not be used without Samsung’s authorization.
Main Board(3/7) Schematic Diagram U2 35 22 34 33 32 31 30 29 26 25 24 23 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 36 NC1 40 NC2 DQ15 DQ14 DQ13 DQ12 DQ11 DQ10 DQ9 DQ8 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 18 *RAS 17 *CAS 20 BA0 21 BA1 19 *CS 16 *WE 15 *LDQM 39 *HDQM 38 CLK 37 CLKE VDD1 VDD2 VDD3 VDDQ1 VDDQ2 VDDQ3 VDDQ4 VSS1 VSS2 VSS3 VSSQ1 VSSQ2 VSSQ3 VSSQ4 53 51 50 48 47 45 44 42 13 11 10 8 7 5 4 2 1 14 27 3 9 43 49 28 41 54 6 12 46 52 K4S641632H-TC75 R2 100 Service Manual Samsung Electronics This Docu
Main Board(4/7) Schematic Diagram Not used 10-4 Service Manual This Document can not be used without Samsung’s authorization.
Main Board(5/7) Schematic Diagram L6 INSTPAR Not Used Not Used Not Used Service Manual Samsung Electronics This Document can not be used without Samsung’s authorization.
Main Board(6/7) 10-6 Schematic Diagram Service Manual This Document can not be used without Samsung’s authorization.
Main Board(7/7) Schematic Diagram Service Manual Samsung Electronics This Document can not be used without Samsung’s authorization.
10.2 OPE Circuit Diagram Schematic Diagram BASIC (LCD1) 10-8 CHINA/KOREA CHIN A/KOREA (LCD2) MICO MI CO M (U1) JB13-00004A JB13-00035A LCD JB07-00004A JC07-00008A Service Manual This Document can not be used without Samsung’s authorization.
10.3 SMPS-110V(1/4) Schematic Diagram Service Manual Samsung Electronics This Document can not be used without Samsung’s authorization.
SMPS-110V(2/4) 10-10 Schematic Diagram Service Manual This Document can not be used without Samsung’s authorization.
SMPS-110V(3/4) Schematic Diagram Service Manual Samsung Electronics This Document can not be used without Samsung’s authorization.
SMPS-110V(4/4) 10-12 Schematic Diagram Service Manual This Document can not be used without Samsung’s authorization.
10.3 SMPS-220V(1/4) Schematic Diagram Service Manual Samsung Electronics This Document can not be used without Samsung’s authorization.
SMPS-220V(2/4) 10-14 Schematic Diagram Service Manual This Document can not be used without Samsung’s authorization.
SMPS-220V(3/4) Schematic Diagram Service Manual Samsung Electronics This Document can not be used without Samsung’s authorization.
SMPS-220V(4/4) 10-16 Schematic Diagram Service Manual This Document can not be used without Samsung’s authorization.
Reference Information 11 11 Reference Information This chapter contains the tools list, list of abbreviations used in this manual, and a guide to the location space required when installing the printer. A definition of tests pages is also included. 11.1 Tool for Troubleshooting The following tools are recommended for safe and smooth troubleshooting described in this service manual. 1 2 3 4 DVM(Digital Volt Meter) Standard: Indicates more than 3 digits.
Reference Information 11.2 Acronyms and Abbreviations The table in the below explains abbreviations used in this service manual. The contents of this service manual are declared with abbreviations in many parts. Please refer to the table.
Reference Information IPC Inter Process Communication RAM Random Access Memory IPM Images Per Minute ROM Read Only Memory LCD Liquid Crystal Display SCF/SCT LED Light Emitting Diode Second Cassette Feeder/Second Cassette Tray LSU Laser Scanning Unit SMPS Switching Mode Power Supply MB Megabyte SPGP Samsung Printer Graphic Processor MFP Multi-Functional Product SPL Samsung Printer Language MHz Megahertz Spool MPBF Mean Prints Between Failure Simultaneous Peripheral Operation O
Reference Information 11.3 Select a location for the printer • Leave enough room to open the printer trays, covers, and allow for proper ventilation.
Reference Information 11.
