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Samsung scx 4623f service manual download.1. Precautions
Samsung scx 4623f service manual download.Samsung SCX / SCX series. Service Manual and Parts Catalog
The function is to set up the time to inform toner low status. This function can provide user convenience for replacing the toner cartridge. This function is for monitoring the engine status. If you perform this function, at printing, the setting value for engine is shown on the bottom of the printed page. Use this feature to test all keys on the operation control panel.
The result is displayed on the LCD window each time you press a key. You can set the parmeter for handset standard. Caution : The parameter value is set at the best condition in the shipment from factory. Use this feature to hear various transmission signals to the telephone line from the modem and to check the modem.
If no transmission signal sound is heard, it means the modem portion of the mainboard malfunctioned has malfunctioned. Use this feature to test the machines DRAM. The result appears in the LCD display. The result and the software version appear in the LCD display.
If the copy image quality is poor, perform this function to check the condition of the CCD unit. Report Configuration Report This report shows the status of the user-selectable options. You may print this list to confirm your changes after changing settings. The item in green box appear when performing the memory clear. The item in blue box appear in common with SCX The item in red box appear when printing a configuration report in Tech mode.
Supplies Information Report This report shows the status of toner cartridge. This report includes toner remaining, average area coverage, installed date etc.
Method to enter 1. After turn on the system power, check the Ready message on the LCD. If the front cover closed, Closed message display LCD. Manually open and close the actuator of the Empty Sensor, the message Present and Empty message will be displayed. If OK key is pushed after ON displayed, motor will be run.
Main motor will auto - stop after 60 seconds and OFF message will be displayed. If OK key is pushed after ON displayed, motor will be slowly run. Fuser fan will auto - stop after 10 seconds and OFF message will be displayed. When OK key is pushed after ON message displayed, clutch turns on. Pick up Clutch will be turn off after 3 seconds and OFF message will be displayed.
Regi Clutch will be turn off after 3 seconds and OFF message will be displayed. Fuser on and off. It will automatically update and reset.
Special Mode Update 1. Notice : All of count values and data saved in MFP will be cleared. Refer to the table below and check the condition of the appropriate roller. Refer to the tables below to understand the messages and their meaning, and correct the problem, as is necessary.
Checking display messages If a message is not in the table, reboot the power and try the printing job again. Some messages may not appear in the display depending on the options or models.
The machine has received a fax which The received fax data will be deleted. Reconfirm junk fax setup. Your machine cannot connect with the Try again. If the problem persists, wait an hour or so for the line to clear and receiving fax machine or has lost contact because of a problem with the try again.
Or, turn the ECM mode on. The IP address assignment is failed. Remove the fuser and re-install it. If it is defective, replace it. If error persists, replace the fuser. Enter the EDC mode. Reinstall the toner cartridge two or three times to confirm it is seated properly. If the problem persists, the toner cartridge is not being detected.
If you select Cancel , the machine stops the fax job. If you select Start, the machine only sends scanned documents of the fax job. Remove papers from the output tray, the machine resumes printing. Or make sure the sensor is facing down.
There is no paper in the indicated tray. Replace empty sensor if defective. Special print media has jammed in the 1. Clear the jam. Replace exit sensor. Replace the defective sensor.
Small amount of toner is left in the indicated cartridge. The cartridge is getting low on toner. Prepare a new cartridge for a replacement. Replace the toner cartridge for the best print quality when this message appears.
Straight thin black vertical line occurs in the printing. Dark black vertical band occur in the printing. Damaged develop roller in the Toner cartridge. Deformed Doctor-blade or cleaning-blade. If causes 1 and 2 occur in the toner cartridge, replace the toner cartridge and try to print out.
Foreign matter or toner particles between the toner cartridge roller and blade. In case the life of the toner cartridge has been expired, white lines or light image occur in front of the image. It may occur due to dirty or foreign substances are on the window of the toner cartridge frame. If the fuser is defective, voids occur periodically at the top of a black image. Remove if found.
They may not occur periodically. Clean each voltage terminal of the Charge, Supply, Develop and Transfer roller. The rollers of developer may be stained. Clean the right Gear that has relatively small gap of the teeth in the OPC. If the malfunction persists, replace the developer. White spots occur periodically in the printing.
If dark or blurry black spots occur periodically, the rollers in the Developer may be contaminated with foreign material or paper particles. Charge roller : If faded areas or voids occur in a black image at intervals of In case of If a black image is partially broken, the transfer voltage is abnormal or the transfer roller's life has expired.
The transfer roller has expired [ Replace it. Clean the inside of the set against the paper particles and foreign matter in order not to cause the trouble. No 2 : Instruct the customer that the machine has to be at average room temperate in order to produce good copy quality.
Bad contact caused by the toner stains between the high voltage terminal in the HVPS. Replace the HVPS if the problems any contaminated terminals. Charge voltage is not turned on due to the bad contacts between power supply in the side of the Toner cartridge and charge terminal of HVPS. Clean the high voltage charge terminal. Replace the HVPS if not solved by the above direction 1 and 2. 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 holder is damaged.
The toner level is not even on the toner cartridge roller due to the bad blade. If the problem is still not solved, replace the toner cartridge.
Gently shake the toner cartridge. Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the electrode of the Toner cartridge. Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the one in the HVPS board. Occur in the toner cartridge, replace the toner cartridge and try to print out. If not solved by the direction 3, check the transfer roller lifetime and replace it.
Instruct the customer that the machine has to be at average room temperate in order to produce good copy quality. Samsung Electronics. When printing on card stock or transparencies using manual feeder. When printing on card stock thicker than normal paper or transparencies such as OHP, higher transfer voltage is required.
Select 'Thick Mode' on paper type menu from the software application and after using returning to the original mode is recommended. Disassemble the fuser Unit. Clean the Fuser Rollers, and Thermistor. Caution: can be deformed. Check the approved voltage of the supply roller and contact of the terminal and adjust if necessary. If the transfer roller is contaminated, stains on the face of page will occur.
And perform Self-Test 2 or 3 times to remove contamination. Replace the transfer roller if contaminated severely. Run Self-Test to remove the contamination of the transfer roller. If contaminated, clean the thermistor, be careful not to bend its mounting bracket. Check if the Ground-OPC is defective set inside right side. Remove contamination of the terminals of the toner cartridge and the unit.
Blank page is printed. Digitalblank Printer Digital Printer2. One or several pages are printed. Digital Printer Digital Printer3. When the printer turns on, several blank pages print.
If not solved by the above directions , Replace the engine board. Turn the power off, delete the data of PC and try printing again. Paper is not exited from the cassette. Jam-0 occurs when the paper feeds into the printer. If the paper feeds into the printer rand Jam 0 occurs, perform DCU to check feed-sensor of the engine board.
Recording paper is jammed in front of or inside the fuser. If the recording paper is jammed in front of or inside the fuser. Perform DCU diagnostic code If the recording paper is stuck in the discharge roller and the fuser just after passing through the Actuator-Feed, Feed Actuator may be defective. If the paper is rolled in the Fuser Roller: - This occurs when a Guide claw is broken away or transformed.
After disassembling the fuser, clean contamination between the heat roller and the thermostor and remove the contamination of the pressure roller.
If there is heavy background, repair it by the background troubleshooting method. Clean the surface of the heat roller with IPA or water 3. Check the warp or separation of the print claw and the holder plate claw. How to remove the rolled in the OPC Drum. Remove the paper while turning the OPC Drum against the ongoing direction. Check the connector and circuit of the cover switch department in the Main Control board. Replace the printer cable. If the problems not solved even after the cable replaced, check the amount of the remaining tone.
Check if the PC and the printer is properly connected and the toner cartridge installed. Check if the connection between PC and printer port is proper. If you using windows, check if the printer driver in the controller is set up. If the printer driver is properly set up, check in which program the printing is not working. The best way to find out is to open the memo pad to check the function of printing.
If it is not working in a certain program, adjust the setup the program requires. Sometimes, the printout is normal within the Windows basic programs, but it's not working in a particular program. In such case, install the new driver again. And check the address of IRQ 7 and If the scanner needs to be connected to the printer, first the remove the scanner from the PC to see if the printer is properly working alone.
Not working with the message 'insufficient printer memory' means hard disk space problem rather than the RAM problem. In this case, provide more space for the hard disk. Secure more space using the disk utilities program.
The connection of the cable and printer port is not proper. Check if the connection is properly done and if the parallel port in CMOS is rightly set up. If the regular font is not printing, the cable or the printer driver may be defective.
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 s, replace the cable with new one. If the printer will not work at all or the strange fonts are repeated, the printer driver may be defective or wrong setup in the CMOS Setup. Check the printer in My Computer. Trying to scan to PC. Goes as far as "connecting and then says not available. It is plugged into computer. I have turned of and on again - same result. What do I do? Libble takes abuse of its services very seriously.
We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action.
We'll get back to you only if we require additional details or have more information to share. For example, Anti-Semitic content, racist content, or material that could result in a violent physical act. If paper is then detected by the Feed Sensor, the paper will then be recognized as e.
The registration sensor Regi Sensor, a photo interrupter informs the CPU that paper is registered at the registration rollers, and waiting for proper leadedge schronization. When the leadedge of the paper is detected by the Feed Sensor photo interrupter , it begins the development process of the drum after a predetermined time.
A paper jam condition is detected if the leadedge of the paper is not detected by the feed sensor within 1sec. The toner cartridge detection is monitored by the CRUM sensors. If all of the CRUM sensors are off, the CPU knows the cartridge is not in the machine, and takes appropriate action by turning on the out of toner light.
The Paper Exit Sensor is mounted on the Fuser Unit exit side, and is used to ensure that paper has indeed exited the machine. The diode in the Fan and Clutch driving circuits protects TR driven from noise when these driver components de-energize. The Main Controller has the interfacing circuits to proper control the components.
It is the power source of entire system. It is assembled by an independent module, so it is possible to use for common use. It is mounted on the side of the machine.
Shading and Gamma Correction are executed immediately in every mode, then processing is executed later. If feeding from a cassette, the drive to the pickup roller is controlled by a solenoid.
The Paper Jam protocols are as follows:. The trailing edge of the paper must clear the Feed Sensor after predetermined time. The leading edge of the paper must detect the Exit Sensor within a predetermined after.
The trailing edge of the paper must clear the Exit Sensor after predetermined time. Each output voltage may change due to the PWM duty. The transfer voltage admitted when the paper passes the transfer roller is decided by environment recognition. The resistance value of the transfer roller is changed due to the surrounding environment through AD converter.
The voltage value for impressing to the transfer roller is decided by this value change. The Heat Roller temperate warmup is measured by converting the resistance of the thermistor to a measurable DC voltage value. The AD converter changes it to a digital value so it knows when it has reach its proper fusing temperature.
The AC power to the fuser lamp is controller by comparing the target temperature to the value from the thermistor. If the value from the thermistor is out of controlling range an error will occur and power disabled.
The table below lists the types of Fuser Errors that can occur:. An error message will be displayed on the Control Panel alerting the customer. The engine stops all functions and keeps it at the error state until the issue is resoled by a qualified technician. It uses the single beam, LD. 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. Also, the engine informs the error status of the main system and the error message is displayed at LCD window to inform the error status to the customer. So, if the engine does not detect consecutively the signal for a fixed time, it defines the Hsync Error. Also, the engine informs the error status of the main system and then the error message is displayed at LCD window to inform the error status to the customer.
The engine mode is changed to recovery mode and the engine informs the main system of the engine mode. And the engine checks the LSU error. Graphic User Interface that offers the various editing functions to user in Host. Driver that translates the received document to a Printing Command Language which the printer can understand and transfers data to spooler. Kernel that control and management the whole procedure include of Control flow and Printing Job before transfer to Engine system.
The Print Driver that is Windows application software translates printed data to one of printer languages and creates spooler file. Web-based Application offer a varity of additional functions for the printer; management of printing job, printer administration, Status monitor to monitoring the printer status by real time in Web, independent environment on OS. Stand-alone Application that is a similar Window software as same as above 2,.
Port Monitor that manages the network communication between spooler and Network Interface Card, or various additional application and Network Interface Card, this is, at first, make communication logical port, manage the data, transfer them from spooler to network port, and offer the result of printing.
Network Interface Card is that relay the communication between Host and kernel using various network protocols. Emulation interprets the various output data from selected emulation. Engine prints rendered bit-map data to paper with required size and type by Kernel. Job Spooling function for Multi-User, Multi-Printing that is occurred in Network printing and various additional printing functions, this Kernel use max.
The spooler then sends the data stream to the printer via USB port. In addition, Kernel informs the printing and printer status to end-user making the printing job with the Status Monitor. Failure to do so could result in damage to the machine, circuit overload, fire or electric shock. There are 19 different screws. Use of the wrong screw could lead to system failure, short circuit or electric shock. Once it is disassembled dust is admitted to the mirror chamber and will seriously degrade print quality.
There are no serviceable parts inside. Bad contacts could lead to overheating and firfe. Damaged cables could lead to electric shock or unit malfunction. Please keep PBA in a conductive case, anti-static bag, or wrapped in aluminum foil. Search help. Tips for better search results Ensure correct spelling and spacing - Examples: "paper jam" Use product model name: - Examples: laserjet pro p, DeskJet For HP products a product number.
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