LASER PRINTER Phaser 3110 Phaser 3210 SERVICE Manual LASER PRINTER CONTENTS 1. Precautions 2. Specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. Exploded Views and Parts List 6. Block Diagram 7. Connection Diagram 8. Electrical Parts List 9. Schematic Diagram - This Service Manual is a property of Samsung Electronics Co.,Ltd.
Precautions 1. Precautions Please read the following carefully to prevent any accidents and not to damage the unit during service. 1-1 Safety Precautions 1. Safety Precautions LASER STATEMENT (LASERTURVALLISUUS) There are some electric or machinery parts with safety related property. If the parts replaced are dif- WARNING : NEVER OPERATE AND SERVICE THE PRINTER WITH THE PROTECTIVE COVER REMOVED ferent from the original, the safety may not function.
Precautions 1-3 Tools for Troubleshooting The following tools are recommended for safe and smooth troubleshooting described in this service manual. DCU(Diagnostic Control Unit) Driver Standard: Test equipment to diagnose the Laser Standard: "-" type, "+" type (M3 long, M3 short, printer supplied by Samsung Electronics.
Disassembly and Reassembly 3. Disassembly and Reassembly 3-1 Cover Assembly 3-1-1 Front Cover 1. Pull the both side of the cover to open. 4. Remove a screw of the front cover PCB and remove the connector, then remove the cover. 2.
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Disassembly and Reassembly 3-2 LED Panel PBA 1. Before you remove other covers, you should remove. 3. Remove two screws, and remove LED panel. • Front Cover (see [3-1 Main Cover]) 2. Remove two screws of PCB cover, and widen the hooks( a b c ) to remove.
Disassembly and Reassembly 3-4 Transfer Roller 1. Open the front cover. 2. Use a proper tool("-" type screwdriver) to pull the one end of the roller slightly, then take it out. 3-5 Motor Assembly 1. Before you remove the motor assembly, you should remove: •...
Disassembly and Reassembly 3-6 HVPS Board 1. Before you remove HVPS board, you should remove: •Main Cover (see [3-1 Main Cover]) 2. Remove four screws and a connector from HVPS board, then take the board out. When you reassemble the HVPS board, make sure that five terminals should be put in place.
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Disassembly and Reassembly 3-8 Thermostat and Halogen Lamp 1. Remove a screw from the fuser assembly and 3. Take the halogen lamp out from the Heat Roller. remove the thermostat cover, then remove two screws securing the thermostat. When you reassemble the halogen lamp, handle it with care as it is fragile.
Disassembly and Reassembly 3-9 SMPS Board 1. Before you remove the SMPS board, you should 3. Unplug connectors from the main board and connec- remove: tors from SMPS, then remove the SMPS. Remove four screws from SMPS and remove the SMPS •...
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Disassembly and Reassembly 3-10 Main Board and Sensor Board 1. Before you remove the main board, you should 3. Release four snap-fits securing the insulator engine remove: board and then remove the insulator. • Main Cover (see [3-1 Main Cover]) •...
Troubleshooting 4. Troubleshooting 4-1 How to use DCU 4-4 The cause and solution of the malfunction 4-1-1 DCU Setup ........Page(4-2) 4-4-1 All LEDs blinking (Fuser Error)..Page(4-16) 4-1-2 Code ..........Page(4-2) 4-4-2 All LEDs blinking (SCAN ERROR) .Page(4-16) 4-1-3 Self Diagnostic Mode......Page(4-3) 4-4-3 Not function of the gear of the fuser due to melting away........Page(4-17) 4-1-4 Self Test Button ........Page(4-4)
Troubleshooting 4-1 How to use DCU 4-1-1 DCU Setup You can examine the malfunction of the printer. To perform DCU, open the front discharge cover and leave the connect the harness wire(10 pin/4 pin) to the CN10(4 pin) of the Main control board. 4-1-2 Code Connect DCU to the printer and turn the power on.
Troubleshooting 4-1-3 Self Diagnostic Mode If Error code occurs due to malfunction of the printer, perform Self Diagnostic Mode to solve the problem. The printer works only in the self-test mode to solve the malfunction problem. To enter the self-test mode, turn the power on pressing the buttons of [Down], [Shift] and [Stop] at the same time. Release the button within 2 or 3 seconds if 78 shows in the DCU.
Troubleshooting THV(+) TRIGGER. ALL HV All high voltage output by each HV terminal and LSU and the fan is in operation. In this mode, electronic resistance of transfer roller and high voltage is detected. If no toner cartridge in the printer, output of THV is +199V ~ + 2100V.
Troubleshooting 4-2 The cause and solution of Bad image 4-2-1 Vertical Black Line and Band 1. Straight thin black vertical line occurs in the printing. • Description 2. Dark black vertical band occur in the printing. Check and Cause Solution Digital Printer 1.
Troubleshooting 4-2-3 Horizontal Black Band 1. Dark or blurry horizontal stripes occur in the printing periodically. • Description (They may not occur periodically.) Check and Cause Solution Digital Printer 1. Bad contacts of the voltage terminals to 1. Clean each voltage terminal of the Charge, Digital Printer developer.
Troubleshooting 4-2-5 Light Image • Description The printed image is light, with no ghost. Check and Cause Solution Digital Printer 1. Develop roller is stained when the toner 1. Check if the Toner Save mode is off. Digital Printer of developer cartridge is almost con- Digital Printer sumed.
Troubleshooting 4-2-7 Uneven Density • Description Print density is uneven between left and right. Check and Cause Solution 1. The pressure force on the left and right 1. Replace both the left and right Spring springs of the transfer roller is not even, Holder.
Troubleshooting 4-2-9 Ghost (1) • Description Ghost occurs at 75 mm intervals of the OPC drum in the whole printing. Check and Cause Solution Digital Printer Digital Printer 1. Bad contacts caused by contamination 1. Clean the terminals when contaminated by Digital Printer from toner particles between high voltage toner particles.
Troubleshooting 4-2-11 Ghost (3) 4-2-11 Ghost (3) • Description • Description White ghost occurs in the black image printing at 32mm intervals. White ghost occurs in the black image printing at 32mm intervals. Check and Cause Check and Cause Solution Solution Digital Printer Digital Printer...
Troubleshooting 4-2-14 Satins on Back of Page • Description The back of the page is stained at 47mm intervals. Check and Cause Solution Digital 1. Transfer roller is contaminated. 1. Perform the OPC Cleaning Mode Print 2 or Digital Pri 3 times.
Troubleshooting 4-3 The cause and solution of the bad discharge 4-3-1 Wrong Print Position • Description Printing begins at wrong position on the paper. Check and Cause Solution Wrong sense time caused by defective feed sensor Replace the defective actuator actuator.
Troubleshooting 4-3-3 JAM 1 1. Recording paper is jammed in front of or inside the fuser. • Description 2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the Actuator-Feed. Check and Cause Solution 1.
Troubleshooting 4-3-5 Multi-Feeding • Description Multiple sheets of paper are fed at once. Check and Cause Solution 1. Solenoid malfunction(the solenoid does not work 1. Replace the solenoid if necessary. properly): Perform DCU mode : solenoid check 06. (Service Parts : Figure 13, chapter 5) 2.
Troubleshooting 4-3-7 OPC • Description Paper is rolled up in the OPC. Check and Cause Solution 1. Paper is too much thin. 1. Recommend to use normal paper. 2. The face of paper is curled. 2. How to remove the rolled paper in the OPC. •...
Troubleshooting 4-4 The cause and solution of the malfunction 4-4-1 All LEDs blinking (Fuser Error) 1. All the lamps on the operator panel blink. • Description 2. Gear of the fuser does not work and breaks away melt away. When printing, motor breaks away from its place due to defective fuser gear. Check and Cause Solution 1.
Troubleshooting 4-4-3 Not function of the gear of the fuser due to melting away • Description The motor breaks away from its place due to gear melting away. Check and Cause Solution DCU Mode : Check if the Error States '60' '62' '68' occur. 1.
Troubleshooting 4-4-6 Cover Open • Description The ERROR lamp is on even when the print cover is closed. Check and Cause Solution 1. The hook lever in the top cover may be defective. 1. Replace the hook lever, if defective. (Service Parts : Figure 1, chapter 5) 2.
Troubleshooting 4-4-9 Defective motor operation • Description Main motor is not driving when printing, and paper does not feed into the printer, resulting 'Jam 0'. Check and Cause Solution 1. Motor harness or sub PCB may be defective. 1. Check the motor harness, replace it, if defective. (Service Parts : Figure 12, chapter 5) 2.
Troubleshooting 4-4-11 Vertical Line Getting Curved • Description When printing, vertical line gets curved. Check and Cause Solution 1. If the supply of +24v is unstable in the Main Control board 1. Replace LSU. linking with LSU, check drive by DCU Mode: LSU Check (Service Parts : Figure 13, chapter 5) -05- LSU Motor on.
Troubleshooting 4-5 Toner Cartridge Service It is not guaranteed for the default caused by using other toner cartridge other than the cartridge supplied by the Samsung Electronic or caused by non-licensed refill production. 4-5-1 Precautions on Safe-keeping of Toner Cartridge Excessive exposure to direct light more than a few minutes may cause damage to the cartridge.
Troubleshooting 4-5-3 Signs and Measures at Poor toner cartridge Fault Signs Cause & Check Solution Light image and • The printed image 1. If the image is light or unclean 1. All of 1, 2, 3 above- partially blank is light or unclean and untidy printed image - (1)The weight of the developer image...
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Troubleshooting Fault Signs Cause & Check Solution 1. If light or dark periodical black White Black spot • Light or dark black 1. In case of 1 above - dots occur, this is because the dots on the image Run OPC Cleaning Mode Print developer rollers are contami- occur periodically.
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Troubleshooting Fault Signs Cause & Check Solution Ghost & Image • The printed image 1. The printed image is too light 1. All of 1, 2, 3 above Contamination is too light or dark, or dark, or partially contami- (1)Remove toner and foreign sub- or partially contami- nated black.
Troubleshooting 4-6 The cause and solutions of bad environment of the software 4-6-1 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: Turn the power on while pressing 1.Check the power of the printer and perform the Self- the test printing button for 2 or 3 seconds before printing Test.
Troubleshooting 4-6-2 The printer is not working (2) After receiving the printing order, no response at all or the low speed of printing • Description occurs due to wrong setup of the environment rather than malfunction of the printer itself. Check and Cause Solution 1.
Troubleshooting 4-6-3 Abnormal Printing The printing is not working properly even when the cable has no problem. (even after the cable is replaced) • Description If the printer won't work at all or the strange fonts are repeated, the printer driver may be defec- tive or wrong setup in the CMOS Setup.
Troubleshooting 4-6-4 SPOOL Error To spool which stands for "simultaneous peripheral operations online" a computer document or task list (or "job") is to read it in and store it, usually on a hard disk or larger storage medium so • Description that it can be printed or otherwise processed at a more convenient time (for example, when a printer is finished printing its current document).
Exploded Views and Parts List 5. Exploded Views and Parts List • Deal drawings and service parts are declared for the items with higher rate of inferiority and replaceable in the level of service description only. • If inferiority occurs, you can replace the parts by the unit declared in deal drawings and service items.
Exploded Views and Parts List 5-2 Front Assembly DESCRIPTION ELA HOU-COVER FRONT CBF-HARNESS-PANEL MAIN PMO-COVER FRONT PMO-GUIDE STACKER PMO-DOOR FACE UP PPR-SHEET PAPER GUIDE PMO-KEY A PMO-KEY B PMO-LENS SED PMO-COVER PCB PMO-STOPPER PMO-BRKT PUSH DEVE PBA SUB DISP-PANEL PMO-COVER FRONT, SUB IMAC...
Exploded Views and Parts List 5-6 RX Drive Assembly DESCRIPTION ELA HOU-RX DRIVE MOTOR-STEP PMO-GEAR_71/28 PMO-GEAR_73/22 PMO-GEAR_132/19 IPR-BRKT_MOTOR IPR-BRKT_GEAR CBF-HARNESS_MOTOR SCREW-MACHINE 5-7 Plate-Upper Unit Assembly DESCRIPTION MEC-PLATE UPPER IPR-UPPER-PLATE IPR-PLATE SPRING DEV MEA ETC-ROLLER PICKUP PMO-HOUSING_PICKUP RMO-ROLLER_PICKUP PMO-IDLE_PICKUP MEA ETC-IDLE FEED PMO-HOLDER_PICKUP SPRING-FEED PMO-HOLDER_IDLE,FEED...
Block Diagram 6. Block Diagram 6-1. Block Diagram(GDI) MAIN POWER SWI TCH POWER SMPS 74LVX161284 +24V FLASH CORD Line I N-LET IEEE 1284 CABLE MEMORY EXI T Transcei ver (0 .5MB) SE N SOR MOTOR SDRAM Power (8MB) Engine SOLENOIDE Res et VOLTAGE DETECT OR...
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Block Diagram 6-2. Block Diagram(PCL) MAIN Oscillator POWER 48 MHz SWITCH SMPS POWER +24V USB Driver FLASH CORD IN-LET IEEE 1284 CABLE USBN9602-28M MEMORY EXIT (2MB) SE N SOR MOTOR DRAM Power Engine SOLENOID Reset VOLTAGE Option DETECTOR Up to C P U 68MB DEV_FUSE...
Connection Diagram 7. Connection Diagram 7-1. Connection Diagram(GDI) +24V_T +24V GND IEEE1284 POLYGON *PMOTOR COMPA TI ABLE MOTOR +3. 3V CABLE EXT_C LK * HSYNC PI N +5V GND LD DIODE * LD_ON +5V GND 4PI N HOST USB CABLE CONN- +5V GND COMPUTER...
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Connection Diagram 7-2. Connection Diagram(PCL) +24V_SLEEP +24V GND IEEE1284 POLYGON MOTOR COMPATI ABLE MOTOR LREADY* CABLE EXT_C LK HSYNC CN12 PI N +5V GND LD DIODE LD_ON +5V GND 4PI N HOST USB CABLE CONN- +5V GND COMPUTER ECTOR LED_ERROR f or LED_PAPER U SB...