Samsung scx-4521f service manual pdf

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Manual. SERVICE. DIGITAL LASER MFP. SCXF Series. SCX/XEV. Basic Model This service manual is a property of Samsung Electronics Co., Ltd. View and Download Samsung SCXF Series service manual online. DIGITAL LASER MFP. SCXF Series All in One Printer pdf manual download. View and Download Samsung SCXF service manual online. Digital laser MFP. SCXF All in One Printer pdf manual download. Also for: Scxtec, .

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Samsung Scx-4521f Service Manual Pdf

SAMSUNG SCXF SM. OTHER - SERVICE MANUAL. Type: (PDF). Size MB. Page Category OTHER SERVICE MANUAL. Warning! If you are not. Service Manual. Main Parts List. Drawer#. SEC_Code. Description. QT'Y. Remark. SCXF. 21PPM LASER MFP 4IN1. SCXF. SCX- . Samsung SCXf Service Manual - Ebook download as PDF File .pdf), Text File .txt) or read book online.

Most useful pages: Page of Go. Show quick links. Hide Hide permanently. Chapters 1. Precautions 3 7. Exploded Views and Parts List

On, 2: Off ADC Value: Page 52 Paper Path Alignment and Adjustments 4. Printer Paper Path 4 The paper then passes through the paper exit sensor and out of the set.

Jam 2 occurs if the trailing edge of the paper does not pass the exit sensor within a certain time of the paper leading edge activating the exit sensor Service Manual Samsung Electronics Clearing Paper Jams To avoid tearing the paper, pull out the jammed paper gently and slowly.

Follow the instructions in the following sections to clear the jam. Open and close the front door to resume printing. Remove the jammed paper in the tray by gently pulling it straight out.

Page 56 1. Open the front door and pull the toner cartridge out, 3. Replace the toner cartridge and close the front lightly pushing it down. Printing automatically resumes. Remove the jammed paper by gently pulling it straight out. In The Paper Exit Area 5. Close the rear door. Disassembly And Reassembly 3.

Unplug the power cord. Use a flat and clean surface. Replace only with authorized components. Do not force plastic-material components. Make sure all components are in their proper posi- tion. Page 60 Disassembly and Reassembly 5. Open the Front Cover.

Hold the MP Tray and pull it to the arrow direction. MP Tray Front Cover 2. Release the Toner Cartridge. Pick Up Roller 5. 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 left.

Cassette Tray 5. Open the Cassette Tray. As shown below, to remove the Cassette Tray, lift the nob to the direction of the arrow with a light pressure while holding the Set left. Rear Cover 2. Open the Jam Cover. If necessary, remove the Jam Cover in the direction of arrow, as shown below. Right Cover - Front Cover Refer to the 5. Remove the one screws securing the Right Cover.

Left Cover Speaker and remove it. Apply light pressure to the back of the Left Cover and pull it to the leftt side in the direction of arrow, as shown below. Page 66 2.

Remove the two screws from the Middle Cover and remove the screw securing the Ground Cable. Middle Cover Middle Cover 3.

Page 67 TX Stacker Ass'y and remove it, as shown below. Page 68 9. Ope Unit 2.

Release the Keys, as shown below. Page 70 2. Scan Upper 5. Scan Lower 3. Take out the Battery. Page 71 8.

Using a flat-blade screwdriver remove the Full Ass'y and remove it. Sensor, as shown below. If necessary, remove the two screws securing the Scan Motor and remove it. Middle Cover - Scan Ass'y Refer to the 5. Remove the five screws securing the Middle Cover, as shown below.

Stacker Main 3. Page 73 - Middle Cover Refer to the 5.

Remove the three screws securing the Sheet and remove it. HVPS 3. Main Pba - Scan Ass'y Refer to the 5. Page 75 Frame then remove the RX Drive in the direction of arrow, as shown below. Remove the four screws securing the Motor Bracket and remove it.

Then remove the two screws securing the Motor and remove it. Page 76 2. Thermister Fuser 5. Remove the Cover-M-Safty, as shown below. Cover-M-Safty 3. Remove the four screws securing the Fuser and remove it, as shown below. Fuser Service Manual Samsung Electronics Page 77 Remove the screw securing the Harness and remove it. Then take out the Thermistor, as shown below. Page 78 Lamp and remove the two screws securing the and remove it. Halogen Lamp, as shown below. Cover-M Take out the Halogen Lamp in the direction of arrow, as shown below.

Page 79 3. Page 80 1. Before you remove the LSU, you should remove: Remove the three screws securing the LSU and remove it. Then unplug the two Connectors from the LSU. Page 81 2. Remove the four screws securing the Paper Path Frame and remove it in the direction of arrow, as shown below. Remove the Transfer Roller from the Frame, as shown below. Check consumables toner etc. Page 84 1. Use only paper which is of a suitable quality, weight and size? See the user guide. Check the overall condition of the printer 1.

Is the printer properly maintained? Clean the Paper Transport Passages. Any rollers with dirt surfaces should be cleaned or replaced. Bad Discharge 3.

Clean with soft cloth dampened with IPA Isopropyl ter. Alcohol or water. If the paper feeds into the printer rand Jam 0 occurs, 4. Page 86 3.

Remove the jammed paper after disassembling the fuser: Clean the surface of the pressure roller with dry gauze. Malfunction 2. If there is heavy background, repair it by the ted.

The surface of the heat roller with IPA or water 4. Check the warp or separation of the sprint claw and the holder plate claw, and then man- age it. Page 88 1. Recommend to use normal paper. The face of paper is curled. How to remove the rolled in the OPC Drum. Page 89 2. Check that there is an audible key click when a key is 2. Main board in sequence. Check and Cause Solution 1. Deformed paper sensor actuator or faulty sensor.

Replace the defective actuator. Cover Open 1. Check and replace switch if necessary. Defective Motor Operation When printing, vertical lines are not straight. Check stability of 24V supply to LSU. Bad Software Environment 4.

If the scanner needs to be connected to the printer, 4. Check if the printer cable is directly connected to periph- first the remove the scanner from the PC to see if the eral devices printer is properly working alone. Page 94 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. 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.

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.

Bad Image 4. Open the front cover and check odically at the top of a black image. Remove if found. If the problems are not solved, replace the developer cartridge. Horizontal Black Band 1, take measures as to replace the develop- er cartridge and try to print out.

Clean the inside of the set against the paper particles and foreign matter in order not to cause the trouble. Replace the HVPS if not solved by the above direction 1 and 2. Uneven Density 4. Is the movement Up and Down of 4. Clean the bushing part of the transfer the transfer roller smooth?

Is the HVPS normal? If the problem is still not solved, replace the developer. Page Digital Printer mal paper or transparencies such as OHP, the software application and after using return- Digital Printer higher transfer voltage is required. If the transfer roller is contaminated, run on the face of page will occur.

Digital Printer And perform Self-Test 2 or 3 times to remove contamination. Page Mode to check if the Solenoid is normal. If not solved by the above directions , Replace the engine board.

Turn the power off, delete the data of PC and try printing again. No Dial Tone 4. These will be erased if the mainboard is replaced.

Damage could be caused to the printer in such areas. The OPC Drum can be irreparably damaged if it exposed to light. Remove the OPC Drum and store it in a black bag or other lightproof container. Take extra care when servicing the printer. Ensure all parts and cables are replaced correctly. If the green surface of the Drum Cartridge is scratched or touched the print quality will be compromised. Take care to note the exact location of parts and also cable routing before dismantling any part of the machine.

Take care not to expose the OPC Drum either to direct sunlight or to fluorescent or incandescent room lighting. Use safe lifting and handling techniques. The printer weighs This printer weighs Use caution when working on the printer.

When operating a printer. The fuser unit works at a high temperature. If do. After installation. Wait for the fuser to cool down before disassembly. Failure to do so could cause the printer to tip or fall possibly causing personal injury or damaging the printer. Back injury could be caused if you do not lift carefully. Do not remove a replacement ESD from its protective packaging until immediately before installing it.

Minimize bodily motions when handling unpackaged replacement ESDs. Normal motions. Examples of typical ESDs are: After removing an electrical assembly equipped with ESDs. Super capacitor or Lithium batteries contain toxic substances and should not be opened. Use only a grounded tip soldering iron to solder or desolder ESDs. When sprayed. Immediately before handling a semiconductor component or semiconductor-equipped assembly. Exercise caution when replacing a super capacitor or Lithium battery.

Be sure to replace the battery with the same or equivalent type recommended by the manufacturer. Maintain continuous electrical contact between the ESD and the assembly into which it will be installed.

The techniques outlined below should be followed to help reduce the incidence of component damage caused by static electricity. Most replacement ESDs are packaged with all leads shorted together by conductive foam. Immediately before removing the protective shorting material from the leads of a replacement ESD.

Do not use Freon-propelled chemicals. For general home use. Reference Information 11 Reference Information This chapter describes the reference information for applying this training manual. M3 short. Indicates more than 3 digits. M2 long. M2 short. Where abbreviations or acronyms are used in the text please refer to this table. Free of extreme fluctuations of temperature. Away from the direct airflow of air conditioners.

A firm. The life of the toner cartridge. Samsung Print Language. ID Card Copy. Toner Save Key Specification. Compact Size. Favorite Copy. Product Specifications 2. Monthly Volume Print Scan 4. Whichever comes first ADF: Mandrake 9. See below for product specifications. Mac Under 10 W Standby Mode: Off Yes On. Off Darkness. Time out option: Photo mode: Dark Yes after 1 minute.

Original Type. Fine Rx fax duplex print out Multiple page scan speed Memory Tx. ISO B5. Color Paper. JIS B5. Card Stock. Print Driver. Electronic User Manual. Twain Driver. Scanner part. Operation Panel part. Line Interface part and Power part. Each Part is separated Module which focus on common and standard design of different kind products. System Overview 3 3. Paper size sensor: None 3.

Paper detecting sensor: Photo sensor. The fuser consists of the Heat Lamp. It fixes toner to the paper using pressure and heat to complete the printing job. Heat Roller. The transfer roller transfers toner from the OPC drum surface to the paper. Feeding Capacity: Feeding Method: MP Cassette Type.

Samsung SCX-4521F Series Service Manual

The cassette has a friction pad which separates paper to ensure single sheet feeding. Pressure Roller. Life expectancy: Over The surface of the roller is coated with Teflon. Feeding Standard: Center Loading. As the paper passes between the Heat and Pressure rollers the toner is melted and fixed permanently to the paper. This ensures that toner does not adhere to the roller surface. Gear driven power unit. The motor supplies power to the paper feed unit. Hardware cuts off when overheated - 2nd protection device: Software cuts off when overheated - 3rd protection device: Thermostat cuts off mains power to the lamp.

All paper 1 sheet 6 Paper Size: Image Processor included. On-Chip clock generator with PLL. Memory and External Bank Control. Parallel interface control. UART 2-Channel. RTC with calendar function. Data Backup: One Touch dial number. Image Signal from CIS has a level of about 1. Scan Resolution: Minimum Scan Line Time: Scan buffer when scanning. Summary of the Image sensor interface is as below.

Then the light is converted to the appropriate voltage suitable for ADC input. On the surface of the original paper. Flash Memory: Stores system program and can be updated to the newer system program code through the PC interface. Image processor of the Chorus2 will do the Shading correction function at first.

After ADC. CIS analog signal will be converted to 8-bit Digital signal. Tone Generator. When Text mode. Scan Width: After then. Communication Mode: ITU-T V V27ter Tonal Signal: ITU-T T. White output volt. Max 0. Tx and Rx path is almost directly connected to the impedance matching transformer of the LIU. A Allegro.

ITU-T V. CIS Supply Voltage: CIS Max frequency: Driving Voltage: The feature of the FM modem chip is as below. Driving ADF Stepper motor. Its main function is Line connection. Photo Sensor 12 Paper Size Sensor: None 13 Paper Separating Pad Material: LSU control part. Face Down 18 Feed Roller Force: TBD Kg.

OPC Drum 3. Center Loading 3 Feeding Qty: TBD gf 20 Feed roller Velocity: Laser diode. High Voltage control part and Fuser Unit control part. Envelope etc. Toner Qty: Handling of wasted toner: Discard by collecting waste-toner at waste-toner bin.

Regulating toner layer by pressure. Heat Lamp Terminal Shape: Terminal Single Type. Light Qty Distribution: Safety device The power of Fuser is cut-off after front cover is open.

Temperature Resistance: Thermistor Type: Toner Residual Sensor: Protecting device when overheating 1st protecting device: Thermostat cuts off the power. Development Roller type: Voltage V: Developing Method: Non magnetic 1 element contacting method.

Classifying device for toner cartridge: ID is classified by interruption of the frame channel. Control Temperature: Thermostat Type: Non magnetic 1 element shatter type toner. Charge Roller Type: Conductive Roller Contact-Charge 3. OPC Cleaning: Use the conventional cleaning blade. LED Current: Clamp Level: Clock Frequency: Power supply: Super Fine: Scanning sensor: Effective Scan Width: Scanning mode: Scanning size: Light source: Number of output: CIS interface: Analog output.

Logic "H": No Paper. Photo interrupt b Position: Max current: Off No Position. Max Voltage: Logic "L": Normal Mode: Fine Mode: On Doc Position. Super Fine Mode: Key Matrix Part.

When sending FAX data to many place in the same time. OPE Panel consists of Micom. Number of Characters: Date display System Status display Alarm. Input Rated Voltage: SMPS has two output channels: It is assembled by an independent module. Input Current: Under 4. It is mounted at back of the machine. Power part is divided by two independent PBAs. Remarks Jam cover switch included 3 4 5 6 7 8 9 Rated Output Max. Rated Frequency: Input Voltage fluctuating range: High voltages applied to the MHV. Frequency fluctuating range: Insulating revisiting pressure: Must be no problem within 1 min.

System Overview 4 Power Cord Length: Exist 6 Feature. Input Voltage: Out VoltageFalling Time: Maintaining temperature range: Out Voltage Trigger: Leaking Current: Input Voltage Variation: Control Method on environment: Operating atmospheric pressure range: Out Voltage: Transfer Variation Voltage on Environment Variation: Out Voltage Rising Time: Rising Time: Running Current: Out Voltage Range: Withstand Resistance: OPC cartridge.

Operating temperature range: Preserving Humidity Condition: Control method on transfer output voltage: Common 7 Environment Condition. IEC UL Output Voltage: From the flashing light. Loading contrast: On the other hand. In other words. As a result.

Output Voltage Falling Time: Output Loading range: Turn OnIf Current: Output Voltage Rising Time: Input contrast of the output stability degree: The AC power controls the switch with the Triac. Output Voltage Fluctuation range: PWM Control. Do not force plastic-material components. The close proximity of cables to moving parts makes proper routing a must. Unplug the power cord. Be sure to remove the toner cartridge before you disassemble parts.

Use a flat and clean surface.

SAMSUNG SCXF SERVICE MANUAL Pdf Download.

If components are removed. Replace only with authorized components. Before removing any component from the machine. Make sure all components are in their proper position. To remove such parts. The latches break easily. Check to verify that documents are not stored in memory.

Releasing Plastic Latches Many of the parts are held in place with plastic latches. Whenever servicing the machine. Open the Front Cover. MP Tray Front Cover 2. Release the Toner Cartridge. Hold the MP Tray and pull it to the arrow direction. Before you remove the Pick Up Roller. MP Tray Refer to the 5. To exchange Pick Up Sponge. To remove the Front Cover. As shown below.

Open the Cassette Tray. Open the Jam Cover. Jam Cover 4. Remove the four screws securing the Rear Cover and remove it. If necessary. Rear Cover 2. Apply light pressure to the back of the Right Cover and pull it to the right side in the direction of arrow.

Before you remove the Right Cover. Front Cover Refer to the 5. Rear Cover Refer to the 5. Remove the one screws securing the Right Cover.

Right Cover 3. Apply light pressure to the back of the Left Cover and pull it to the leftt side in the direction of arrow. Speaker 5. Remove the one screws securing the Left Cover. Before you remove the Left Cover. Left Cover Refer to the 5. Scan Motor. Release the Scan Ass'y in the direction of arrow. Right Cover Refer to the 5. Remove the two screws from the Middle Cover and remove the screw securing the Ground Cable.

Before you remove the Scan Ass'y. Unplug the three Connectors ADF. Scan Ass'y Refer to the 5. Open the ADF Housing and insurt a flat-blade screwdriver into the slot as shown below.

Before you remove the ADF Housing. At that time. Remove the two screws securing the ADF Ass'y and remove it. Disassembly and Reassembly 6. ADF Lower 1 9. Pull the Bush. Then lift the Pick Up Unit. Remove the two screws securing the ADF Upper and insurt a flat-blade screwdriver in to slot as shown below. Open Cover 8. Open the Open Cover and remove the Open Cover in the direction of arrow. Rubber-Scroll 2. Release the Contact Rubbers. Full Sensor. Open the ADF Housing and insurt a flat-blade screwdriver into the crack as shown below.

Release the Keys. Unplug the three Connectors Battery. Take out the Battery. ADF Housing Refer to the 5. Remove the five screws from the Scan Upper and remove it from the Scan Lower.

The CIS will come out at the same time. OPE Unit Refer to the 5. Before you remove the Platen Housing. Push the Holder in the direction of arrow and remove the Belt. Scan Lower CIS 3. Using a flat-blade screwdriver remove the Full Sensor. Remove the two screws securing the Scan Motor Ass'y and remove it. Remove the five screws securing the Middle Cover.

Main PBA Stacker 3. Before you remove the Middle Cover. Remove the three screws securing the Sheet and remove it. Middle Cover Refer to the 5. Before you remove the HVPS. HVPS 3. Before you remove the Main PBA. Remove the six screws securing the Main PBA and remove it. Then remove the two screws securing the Motor and remove it. Main PBA Refer to the 5. Before you remove the RX Drive.

Remove the two screws securing the Engine Shield and remove the six screws securing the Frame then remove the RX Drive in the direction of arrow. Remove the four screws securing the Motor Bracket and remove it. Feed Gear 6. Remove the Connector. Main PBA and Ground.

Feed from the Frame. Lever-M-Act Exit 2 1 Fuser 5. Remove the four screws securing the Fuser and remove it. Thermister 4. Cover-M-Safty 3. Remove the Cover-M-Safty. Remove the Lever-M-Act Exit in the direction of arrow. Fuser Service Manual Samsung Electronics. Before you remove the Fuser. Spring will come out at the same time. Remove the Cover-M-Guide Exit. Remove the two screws securing the Thermo Cap and remove it. Then take out the Thermistor.

Remove the screw securing the Harness and remove it. Thermistor Service Manual Samsung Electronics Cover-M Take out the Halogen Lamp in the direction of arrow.

Disassembly and Reassembly Remove the two screws securing the Cover-M and remove it. SMPS 5. When if only remove the SMPS. Remove the six screws securing the Engine Shield and release the Harness.

SMPS 1. Before you remove the Engine Shield. Remove the three screws securing the LSU and remove it. Before you remove the LSU. Then unplug the two Connectors from the LSU.

Remove the Transfer Roller from the Frame. Before you remove the Paper Path Frame. Remove the screw securing the Solenoid-MP and remove it. Engine Shield Refer to the 5. Fuser Refer to the 5. Remove the four screws securing the Paper Path Frame and remove it in the direction of arrow.

Preprinted A4. Alignment and Adjustments 4 4.

These are fully described in the User Guide and are not included here. Letter Fax: Folio A5. Card stock. Off On. On-Error On. Off Comm. No Yes. Off On.. High On. Print FAX: DRPD Fax: No On. Reports Phone Book 10 ea On. Off Clear All Mem.

When in Tech mode the machine still performs all normal operations. Serial No. Pulse Customer No. Customer Name Service No. Enter your name or the company name using the number keypad. If you want to enter the same letter or number in succession. If you make a mistake while entering numbers. If there is a number already set. The first available menu item. For details on how to use the number keypad to enter alphanumeric characters.

You can enter alphanumeric characters using the number keypad. Press the scroll button or until the language you want appears on the display.

The display asks you to enter the fax number. Enter your fax number using the number keypad. Press Enter when the name on the display is correct. Press Enter to save the selection. To return to Standby mode. Press Enter. Press Enter when the number on the display is correct.

The Machine ID. The display asks you to enter an ID. If you want to insert a space in the name. The current setting appears on the bottom line of the display. For the SCX When you enter a wrong number. The clock mode currently set for the machine displays.

You can also use the scroll button or to move the cursor under the digit you want to correct and enter a new number. You can change the clock mode to hour format e. When the cursor is not under the AM or PM indicator. If this happens. Press the scroll button or to select the other mode and then press Enter to save the selection. For the SCXF. After entering. The date format may differ from country to country.

Enter the correct time and date using the number keypad. If power to the machine is cut off.

Samsung SCX-4521F Series Service Manual

Press Enter when the time and date on the display is correct. For the ringer volume. The machine works normally even if the ringer is turned off. The next sound option appears. These settings will apply to copy and fax modes. Press the scroll button sound option. Press Enter when you see the desired Press the scroll button or to display the desired status or volume for the option you have selected.

Press Menu. You will see the selection on the bottom line of the display. You can adjust the ringer volume. For PC-printing. You can turn on or off the sounds from the telephone line through the speaker.

Use the scroll button or to find the paper type you are using and press Enter to save it. You can turn the alarm sound on or off. Key Sound. Press the scroll button the menu item. Press the scroll button or until the time setting you want appears.

The available options are 5. Press On Hook Dial. Activating this mode extends the life of the toner cartridge beyond what one would experience in the normal mode. A dial tone sounds from the speaker. You can adjust the speaker volume only when the telephone line is connected. To turn the toner save mode on or off. Press the scroll button volume level. You can turn this mode on and select a length of time for which the machine waits after a job is printed before it switches to a reduced power state.

First of all you need the following files: Then the upgrade will automatically take place. Do not turn off the power during the upgrade process. Enter the telephone number of the set that needs to be upgraded. Click the Refresh icon and check that the updated version numbers are displayed. There are two commands use the correct one depending on the condition of the set. On the set that has the latest firmware set it toi transmit the upgrade: In this case. Click the Update icon. Several faxes can be upgrade at the same time.

If not the function will not work. Local and Remote. Search for the Firmware file to be used to update the set using the Browse Icon.

Ensure you save ALL of these files in the same folder.. At the DOS prompt enter the correct command as shown below and push the enter key. The firmware file is transmitted to the Printer automatically and the printer is initialized when the download completes. When the enter button is pressed the set sends the firmware file by calling designated fax number.

If copy image quality is poor perform this function to check the condition of the CIS unit. If no transmission signal sound is heard. If the printed image is different to the sample image shown the CIS is defective. The result and the software version appear in the LCD display. The result appears in the LCD display. This function is for factory manufacturing use only. If all memory is working normally. When you test the CIS. The result is displayed on the LCD window each time you press a key.

Use this list to check for send and receive errors. When the machine has problem in communication, It displayed on the LCD. Machine displays this in case of Transmission. Machine displays this in case of fax handshaking step of Reception. When the machine has problem in case of Fax Data reception step. When the machine could not connect to remote fax after Completion of redial up to redial counter in system data. Remote party did not have the requested feature, such as polling.

When the operator pressed the STOP button during transmission. When the machine has encountered the user memory was full, When the machine failed in installing the new toner cartridge. You have tried to select a group location where only a single Location number can be used. The speed dial location you tried to use has no number assigned to it.

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