Samsung SF-76x series Service Manual Download

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4. Alignment and Troubleshooting

► Error Code

U2–1112

U2–1113

► Error message

Error #U2-1112 Turn off then on

Error #U2-1113 Turn off then on

► Symptom

LSU Motor does not work normally.

► Troubleshooting method

1) Check if the LSU harness on the main board is connected properly. (picture- 1)

2) If it is OK, check that the LSU harness on LSU board is connected properly. (picture- 2,3)

3) Check if the LSU harness is defective. (picture- 4,5)

4) If the problem persists, replace the LSU.

5) If the problem persists after replacing LSU, replace the main board.

4-25

Summary of Contents for SF-76x series

Page 1: ...EMANUAL Mono Laser MFP Contents 1 Precautions 2 Product spec and feature 3 Disassembly and Reassembly 4 Alignment and Troubleshooting 5 System Diagram 6 Reference Information Refer to the service manual in the GSPN see the rear cover for more information ...

Page 2: ...pecification 2 3 2 1 1 4 Fax 2 4 2 1 1 5 Controller and Software 2 5 2 1 1 6 Paper Handling 2 6 2 1 1 7 Consumables 2 6 2 1 1 8 Maintenance Parts 2 7 2 1 1 9 Reliability and Service 2 7 2 1 1 10 Environment 2 7 2 1 1 11 Accessories 2 8 2 1 2 Model Comparison Table 2 9 2 2 System Overview 2 10 2 2 1 Front View 2 10 2 2 2 Rear View 2 11 2 2 3 Paper Path 2 12 2 2 4 System Layout 2 13 2 2 4 1 Feeding ...

Page 3: ... 3 1 3 1 3 Releasing Plastic Latches 3 2 3 2 Screws used in the printer 3 3 3 3 Replacing the Main SVC parts 3 4 3 3 1 ADF Frame 3 4 3 3 2 Stacker 3 6 3 3 3 White roller 3 6 3 3 4 OPE board 3 7 3 3 5 ADF roller 3 8 3 3 6 CIS unit 3 9 3 3 7 Main board 3 9 3 3 8 Fax board 3 10 3 3 9 Left Cover 3 10 3 3 10 Front cover 3 11 3 3 11 Middle cover 3 12 3 3 12 Rear cover 3 13 3 3 13 SMPS HVPS board 3 13 3 ...

Page 4: ...Smart Panel Linux only 4 12 4 1 7 Updating Firmware 4 13 4 1 8 Tech mode 4 14 4 2 Troubleshooting 4 18 4 2 1 Procedure of checking the symptoms 4 18 4 2 1 1 Basic Check List 4 19 4 2 2 Error Code and Troubleshooting 4 20 4 2 3 Image quality problem 4 27 4 2 4 Other errors 4 32 5 System Diagram 5 1 5 1 Block Diagram 5 1 5 2 Connection Diagram 5 2 6 Reference Information 6 1 6 1 Tool for Troubleshoo...

Page 5: ...e requirements of DHHS 21 CFR chapter 1 Subchapter J for Class I 1 laser products and elsewhere is certified as a Class I laser product conforming to the requirements of IEC 60825 1 Class I laser products are not considered to be hazardous The laser system and printer are designed so there is never any human access to laser radiation above a Class I level during normal operation user maintenance o...

Page 6: ...round corners or power cable may be damaged Do not place objects on top of the power cable If the power cable is damaged it could overheat and cause a fire Exposed cables could cause an electric shock Replace the damaged power cable immediately do not reuse or repair the damaged cable Some chemicals can attack the coating on the power cable weakening the cover or exposing cables causing fire and s...

Page 7: ...s are replaced correctly Please carry out the following procedures before dismantling the product or replacing any parts 2 Ensure that power is disconnected before servicing or replacing any electrical parts 3 Disconnect interface cables and power cables 4 Only use approved spare parts Ensure that part number product name any voltage current or temperature rating are correct 5 When removing or re ...

Page 8: ...n get harm 3 When you move the printer use safe lifting and handling techniques This printer is heavy Use the lifting handles located on each side of the machine Back injury could be caused if you do not lift carefully 4 Ensure the printer is installed safely 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 ...

Page 9: ...n the vicinity of the assembly 3 Use only a grounded tip soldering iron to solder or desolder ESDs 4 Use only an anti static solder removal device Some solder removal devices not classified as anti static can generate electrical charges sufficient to damage ESDs 5 Do not use Freon propelled chemicals When sprayed these can generate electrical charges sufficient to damage ESDs 6 Do not remove a rep...

Page 10: ... SPL 5 Memory 64 MB 6 Interface High speed USB 2 0 7 Toner cartridge Initial 0 7 K Sales 1 5K 2 1 1 1 General Print Engine Item Specification Simplex Up to 20 ppm in A4 21 ppm in Letter Engine Speed Duplex Manual Duplex Warmup time From Sleep Less than 30 seconds From Ready Less than 8 5 seconds FPOT From Sleep Less than 15 5 seconds Resolution Up to 1 200 x 1 200 dpi effective output 2 1 Copyrigh...

Page 11: ... x 600 dpi ADF Text Photo Scan 600 x 300 dpi Printing 600 x 600 dpi ADF Copy Resolution Photo Scan 600 x 600 dpi Printing 600 x 600 dpi ADF Original Type Factory Default Text Photo Max Original size ADF Legal 8 5 x 14 Multi Copy 1 99 Automatic Paper Selection No Manual Paper Selection No Duplex Copy No Darkness Control 11 Levels Basic Copy Reduce Enlarge 25 to 400 Copyright 1995 2011 SAMSUNG All r...

Page 12: ...0 dpi 70 sec on ADF True Color 300 dpi 70 sec on ADF Optical 600 x 600 dpi Resolution Enhanced 4 800 x 4 800 dpi Max Document Width Max 216 mm 8 5 Effective Scan Width Max 208 mm 8 2 Max Document Length 356 mm 14 Scan Size Effective Scan Length 348 mm 13 7 Color Internal 16 bit x 3 External 8 bit x 3 Scan Depth Mono 1 bit for Lineart Halftone 8 bits for Gray scale 2 3 Copyright 1995 2011 SAMSUNG A...

Page 13: ...JBIG JPEG Tx Only Color Fax Yes Tx only ECM Yes Std 203 x 98 dpi Fine 203 x 196 dpi Resolution Mono S Fine 300 x 300 dpi Handset Yes China Only On hook Dial Yes Search Yes Phone Book Speed Dial 200 locations Group Dial 100 Groups TAD I F Yes Tone Pulse Yes Pause Yes Auto Redial Yes Last Number Redial Yes Caller ID Yes Telephone Features External Phone Interface Yes Copyright 1995 2011 SAMSUNG All ...

Page 14: ...OS Mac OS X 10 4 10 7 WHQL Windows 2000 XP 32 64bits Vista 32 64bits 2003 Server 32 64bits 2008 Server 32 64bits 7 32 64bits 2008 Server R2 64bits Print Driver Compatibility Windows 2000 XP 32 64bits Vista 32 64bits 2003 Server 32 64bits 2008 Server 32 64bits 7 32 64bits 2008 Server R2 64bits TWAIN Yes WIA Yes Windows 2000 XP 32 64bits Vista 32 64bits 2003 Server 32 64bits 2008 Server 32 64bits 7 ...

Page 15: ...ISO B5 JIS B5 Envelope Monarch No 10 DL C5 Custom Media type Plain Thin Cotton Recycled Archive Colored Pre Printed Label Bond Thick Envelopes Cardstock Media weight 16 43 lb 60 to 163 g m Multi purpose Tray Bin type Sensing N A Optional Cassette Tray N A Capacity Face Down 100 sheets 80 g m Output Stacking Output Full sensing N A Duplex Supporting N A Printable Area Non Printable Area 3 mm 0 12 f...

Page 16: ... performance application software connecting method media media size and job complexity 2 1 1 9 Reliability and Service Items Specification Printing Volume SET AMPV 75 sheets month MPBF 20 000 sheets MTTR 30 min SET Life Cycle 30 000 sheets or 5 years whichever comes first 2 1 1 10 Environment Item Specification Dimension W x D x H Machine not included handset 362 x 260 x 280 mm 14 25 x 10 24 x 11...

Page 17: ...ting See the rating label on the machine for the correct voltage V frequency hertz and type of current A for your machine For the machine that has a power switch 2 1 1 11 Accessories Image Item Remark Power cord Quick installation guide Software CD The software CD contains the printer drivers and software applications Misc accessories Miscellaneous accessories included with your machine may vary b...

Page 18: ...ready less than 8 5 sec less than 9 sec less than 8 5 sec Processor 433 MHz 66 MHz 400 MHz Memory 64 MB 16 MB 64 MB Emulation GDI GDI GDI Input 150 Bin 250 CST 150 Bin Paper Capacity Output 100 sheet 50 sheet 100 sheet Noise 50 dBA 49 dBA 51 dBA Toner Cartridge 1 5K 0 7K 1 5K 2 5K 1K 1 6K 0 7K 2 9 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 19: ...e Some features and optional goods may not be available depending on model or country 9 4 1 2 8 6 5 3 7 10 13 11 12 14 11 12 13 14 15 1 Document feeder width guides 2 Document feeder input tray 3 Document feeder 4 Paper width guides 5 Tray 6 Output tray 7 Output support 8 Document feeder output tray 9 One touch dial 10 Control panel 11 Top cover 12 Inner cover 13 Toner cartridge 14 Handset 15 Scan...

Page 20: ...ne depending on your model There are various types of machine Some features and optional goods may not be available depending on model or country 1 2 3 4 1 Extension telephone socket EXT 2 Telephone line socket Line 3 USB 4 Power receptacle 2 11 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 21: ...2 Product spec and feature 2 2 3 Paper Path The following diagram displays the path the paper follows during the printing process ADF Engine Copyright 1995 2011 SAMSUNG All rights reserved 2 12 ...

Page 22: ... Frame Toner Cartridge Drive Unit Transfer roller Pick up unit Fuser Bin tray The hardware parts consists of the main board SMPS HVPS board OPE board PC interface 1 Pinch roller 2 White roller 3 OPE 4 Scan sensor lever 5 Doc sensor lever 6 Guide Doc L R 7 ADF upper frame 8 Rear stacker 9 ADF lower frame 10 ADF roller 11 CIS unit 2 13 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 23: ...d feature 12 Exit roller 13 ADF stacker TX 14 Exit roller1 15 Fuser unit 16 Toner cartridge 17 Transfer roller 18 Feed roller 19 Pick up roller 20 Plate Bottom 21 LSU Copyright 1995 2011 SAMSUNG All rights reserved 2 14 ...

Page 24: ...ction pad separating method The side guide can be adjusted for various types of papers from A6 to legal size paper It has a paper detecting function paper arranging function 1 Paper width guide 2 Tray v v w w 2 Pick up roller It has functions such as a paper pickup function driving control function paper feeding function and removing electronic static function Pick up roller is driven by clutch 2 ...

Page 25: ...2 2 4 3 Drive Unit In SF 760 series the driving device consists of OPC Pick up Feed Fuser Gear Train connected with Mounting member A step motor for driving is assembled to the left frame Driving Frequency Step Motor 810 PPS 1013 rpm It is a power delivery unit by gearing Step Motor Pick up Feeder OPC Fuser Exit Copyright 1995 2011 SAMSUNG All rights reserved 2 16 ...

Page 26: ... It is a temperature detecting sensor Temperature Resistance 7 kΩ 180 C 3 Heat roller The heat roller transfers the heat from the lamp to apply a heat on the paper The surface of a heat roller is coated with Teflon so toner does not stick to the surface 4 Pressure roller A pressure roller mounted under a heat roller is made of a silicon resin and the surface also is coated with Teflon When a paper...

Page 27: ...ware cuts off when overheated 3rd protection device Thermostat cuts off main power Safety device A fuser power is cut off when a front cover is opened Maintain a temperature of fuser cover s surface under 80 C for user and attach a caution label at where customer can see easily when customer open a rear cover Copyright 1995 2011 SAMSUNG All rights reserved 2 18 ...

Page 28: ...e OPC drum is turned with the paper feeding speed The HSYNC signal is created when the laser beam from LSU reaches the end of the polygon mirror and the signal is sent to the controller The controller detects the HSYNC signal to adjust the vertical line of the image on paper In other words after the HSYNC signal is detected the image data is sent to the LSU to adjust the left margin on paper The o...

Page 29: ...ler and blade Developing Method Non magnetic single component non contacting method Toner Non magnetic single component pulverized type toner The life span of toner ISO 19752 pattern A4 standard Initial toner 0 7 K Sales toner 1 5K OPC Cleaning Collect the toner by using cleaning blade Handling of wasted toner Collect the wasted toner in the cleaning frame by using cleaning blade Classifying devic...

Page 30: ...v e D B S U P 6 1 P 8 P 0 3 P 2 1 P 4 P 5 P 2 P 4 M A R D S 2 R D D C 3 G C 6 1 M 2 3 U T 5 T N M O R P E E A E 1 X 2 1 5 4 2 M B K 4 6 h s a l F L A I R E S U B X A F 4 6 Q 5 2 W B M 8 h s a l F L A I R E S S O 4 6 Q 5 2 W B M 8 E P O D C L e n i L 2 M O C I M E P O 3 0 1 S 8 M T S R E K A E P S X A F R E V I R D R O T O M e n i g n E R T P L S 4 8 9 4 A t e s d n a H y l n O P 0 6 7 H F 1 2 4 3 ...

Page 31: ...opted as the main processor Its process speed is 433 MHz It is integrated engine controller video controller scan controller DDR2 64MB is adopted for high speed data processing Boot has 8 MB SPI 8 MB SPI Main board diagram Copyright 1995 2011 SAMSUNG All rights reserved 2 22 ...

Page 32: ...ctor 5 SMPS HVPS interface connector 6 Fax board interface connector 7 Sensor connector 8 Pick up connector 9 USB device connector 10 CIS interface connector 11 Fuser thermistor interface connector 12 Scan motor connector Information Part code JC92 02465A Part name PBA MAN 2 23 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 33: ...ED Animation LED Power LED WPS LED 16x2 Line LCD OPE communicates with main controller via UART The power LED is controlled by the main board OPE board diagram OPE board image Information Part code JC92 02416A Part name PBA OPE Connection 1 Interface connector to main board Copyright 1995 2011 SAMSUNG All rights reserved 2 24 ...

Page 34: ...Data Access Arrangement solution is applied to this board It consists of three chip solutions CX82500 SFM336 CX20493 LSD CX20437 Codec Information Part Code JC92 01746D E Part Name PBA LIU Connection 1 Interface connector to main controller 2 Speaker interface 2 25 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 35: ...t The HVPS board generates high voltage channels which includes MHV DEV DC DEV AC SUPPLY THV SMPS HVPS board image Specification General Input Output Voltage AC 110V 110V 127V AC 220V 220V 240V Input Current 8 0A 110V 6 3A 220V Output Power 43 2W DC 24V 43 2W Information 110V 220V Part Code JC44 00208A JC44 00209A PBA name SMPS HVPS V1 SMPS HVPS V2 Connection 1 Main Board interface connector 2 AC_...

Page 36: ...HV HVPS 3 nTHV_EN HVPS 4 PWM_DEV_DC HVPS 5 3 3V OPEN COVER ON OFF DETECT 6 PWM_DEV_AC HVPS 7 3 3V COVER ON OFF DETECT 8 nDEV_EN HVPS 9 PWM_THV HVPS 10 VPP_DEV_AC HVPS 11 GND Common Ground 12 24VS1 Relay Fuser 13 GND Common Ground 14 GND Common Ground 15 24V SMPS 16 RELAY_ON AC RELAY ON ACTIVE HIGH 17 24V SMPS 18 GND Common Ground 19 24V SMPS 20 FUSER_ON FUSER_ON ACTIVE HIGH 2 27 Copyright 1995 201...

Page 37: ...ection S2 Photo interrupter Scan sensor OPE board Paper detection S3 Photo interrupter Hook sensor PBA Hook Handset detection S4 Photo interrupter Feed sensor PBA sensor Paper detection S5 Photo interrupter Width sensor PBA sensor Paper detection S6 Switch Front cover SMPS HVPS board Cover Open detection Copyright 1995 2011 SAMSUNG All rights reserved 2 28 ...

Page 39: ...sor does not detect the lead edge of the paper JAM 1 After the leading edge of the paper passes the feed sensor the trailing edge of the paper does not clear the sensor the feed sensor after predetermined period of time 2 2 6 2 Transfer The charging voltage developing voltage and the transfer voltage are controlled by PWM Pulse Width Modulation The each output voltage is changeable due to the PWM ...

Page 40: ...it is higher than the specified temperature and the temperature state is detected for a specific duration then the engine defines Over Heat Error When this error is detected the engine stops all functions and keeps it at the error state Also the engine informs the error status of the main system so it can take appropriate action and then the error message is displayed at LCD window or LED informin...

Page 41: ... various editing functions to user in Host 2 Driver translates the received document to a Printing Command language which printer can understand and transfers data to spooler 3 Stand alone Application offers the various printing application such as Easy Printer Manager Printer Status in Window system Firmware is made up of 1 Application Emulation that is a interpreter translates data received from...

Page 42: ...r unit malfunction 3 1 2 Preautions when handling PBA Static electricity can damage a PBA always used approved anti static precautions when handling or storing a PBA Precautions when moving and storing PBA 1 Please keep PBA in a conductive case anti static bag or wrapped in aluminum foil 2 Do not store a PBA where it is exposed to direct sunlight Precautions when replacing PBA 1 Disconnect power c...

Page 43: ...tches Many of the parts are held in place with plastic latches The latches break easily release them carefully To remove such parts press the hook end of the latch away from the part to which it is latched Copyright 1995 2011 SAMSUNG All rights reserved 3 2 ...

Page 44: ...0308 SCREW TAPTYPE PH B M2 6 L6 ZPC WHT SWRCH18A 4 6003 000269 FRAME MAIN RIGHT SCREW TAPTYPE BH S M3 L6 ZPC WHT SWRCH18A 2 6003 000269 FRAME MAIN MIDDLE SCREW TAPTYPE BH S M3 L6 ZPC WHT SWRCH18A 5 6003 000282 LSU SCREW TAPTYPE BH B M3 L8 ZPC BLK SWRCH18A 5 6003 000269 FRAME FEED IDLE SCREW TAPTYPE BH S M3 L6 ZPC WHT SWRCH18A 2 6003 000196 COVER MIDDLE SCREW TAPTYPE PWH B M3 L10 NI PLT SWRCH18A 3 ...

Page 45: ...placing the Main SVC parts 3 3 1 ADF Frame 1 Remove the handset and cradle 2 Unplug the curl cord 3 Open the ADF Frame Release both stoppers from the ADF Frame 4 Remove the right cover Copyright 1995 2011 SAMSUNG All rights reserved 3 4 ...

Page 46: ...3 Disassembly and Reassembly 5 Remove 1 screw for the ground wire 6 Unplug the connectors connecting ADF Frame 7 Lift and release the ADF Frame 3 5 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 47: ...ly 3 3 2 Stacker 1 Release the front stacker 2 Pull up and release the rear stacker 3 3 3 White roller 1 Open the OPE unit Pull up the right lever And release the white roller Copyright 1995 2011 SAMSUNG All rights reserved 3 6 ...

Page 48: ... the linker from the left of the OPE unit 2 Release the left of the OPE unit from ADF frame 3 Remove 2 screws 4 Remove the OPE upper cover 5 Unplug the connector Remove 2 screws And release the OPE board 3 7 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 49: ... the ADF top cover Left Right Hook 2 Release the ADF top cover 3 Release the ADF frame upper after removing 4 screws 4 Remove 2 screws securing the ADF drive unit 5 Pull the roller exit to the right Release the ADF roller 2 1 Copyright 1995 2011 SAMSUNG All rights reserved 3 8 ...

Page 50: ...assembly 3 3 6 CIS unit 1 Release the CIS unit 3 3 7 Main board 1 Remove the right cover 2 Unplug all connectors on main board Remove 4 screws And release the main board 3 9 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 51: ... 3 3 8 Fax board 1 Remove the right cover 2 Unplug all connectors on fax board Remove 4 screws And release the fax board with its cover 3 3 9 Left Cover 1 Remove the left cover Copyright 1995 2011 SAMSUNG All rights reserved 3 10 ...

Page 52: ...3 Disassembly and Reassembly 3 3 10 Front cover 1 Remove the cover cassette 2 Remove 2 screws 3 Release the front cover after removing 2 screws 3 11 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 53: ...e main board and fax board 2 Release the shield controller after removing 4 screws 3 Release both jam levers from the jam cover 4 Remove the cover open 5 Remove 2 screws 6 Lift up and release the middle cover Copyright 1995 2011 SAMSUNG All rights reserved 3 12 ...

Page 54: ... after removing 4 screws 3 3 13 SMPS HVPS board 1 Remove the SHEET MAIN PCB SHEET MAIN PCB 2 Remove the SMPS cover after removing 2 screws 3 Unplug the fuser connector Release the SMPS HVPS board after removing 8 screws 3 13 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 55: ...ssembly 3 3 14 Fuser unit 1 Unplug the fuser connector 2 Release the fuser unit after removing 3 screws 3 3 15 Drive Unit 1 Release the Drive Unit after removing 4 screws Copyright 1995 2011 SAMSUNG All rights reserved 3 14 ...

Page 56: ...e and all covers 2 Remove 2 screws securing the LSU cover 3 Remove 2 screws securing the LSU cover Unplug the motor connector And release the LSU cover 4 Unplug 2 flat cables Remove 3 screws And release the LSU 3 15 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 57: ...nsor PBA 1 Remove the rear cover Refer to 3 3 12 2 Unplug the connector after releasing the Feed Sensor PBA 3 3 18 Pick up roller 1 Remove 2 screws from the bottom 2 Release the pick up roller Copyright 1995 2011 SAMSUNG All rights reserved 3 16 ...

Page 58: ...3 Disassembly and Reassembly 3 3 19 Motor 1 Release the left frame after removing 6 screws 2 Release the motor after removing 2 screws 3 17 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 59: ...g the connectors connecting ADF Frame And release the ADF Frame refer to 3 3 1 4 Remove 2 screws from the top of the middle cover 5 Release the rear cover after removing 4 screws 6 Push the Bush TR from the rear and remove the Transfer roller from the front 7 When reassembling it push the bush TR in two direction like below picture Copyright 1995 2011 SAMSUNG All rights reserved 3 18 ...

Page 60: ...on or off or wakes up the machine from the power save mode If you need to turn the machine off press this button for more than three seconds 4 Stop Clear Stops an operations at any time 5 Start Starts a job 6 On Hook Dial When you press this button you can hear a dial tone Then enter a fax number It is similar to making a call using speaker phone 7 One touch dial Stores frequently dialed fax numbe...

Page 61: ...nd a fax to 16 Delay Send Allows you to send a fax at a later time when you will not be present 17 Reduce Enlarge Makes a copy smaller or larger than the original 18 Display screen Shows the current status and displays prompts during an operation 19 Scan Switches to Scan mode 20 Copy Switches to Copy mode 21 Fax Switches to Fax mode 22 Numeric Keypad Dials a number or enters alphanumeric character...

Page 62: ...new cartridge for replacement You may temporarily increase the printing quality by redistributing the toner Status Red On A toner cartridge has almost reached its estimated cartridge life It is recommended to replace the toner cartridge The cover is opened Close the cover There is no paper in the tray Load paper in the tray The machine has stopped due to a major error Check the display message A p...

Page 63: ...r 3 Load the documents back into the document feeder Exit Misfeed 1 Remove any remaining pages from the document feeder 2 Open the control panel by gripping it on the bottom edge and pulling it 3 Pull the document gently out of the document feeder 4 Close the control panel Then load the documents back into the document feeder Copyright 1995 2011 SAMSUNG All rights reserved 4 4 ...

Page 64: ...Take care when removing paper from the machine Before opening the top cover close the output tray first 1 Open the top cover 2 Open the jam cover 3 Remove the jammed paper by gently pulling it straight out If you do not see the paper in this area stop and go to next step 4 Open the middle cover 4 5 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 65: ...oner cartridge 6 Remove the jammed paper by gently pulling it straight out 7 Reinstall the toner cartridge 8 Close the middle cover and top cover 1 2 9 Open the output tray and install the stacker Copyright 1995 2011 SAMSUNG All rights reserved 4 6 ...

Page 66: ... level The following information will guide you on how to set your machine for the best print quality 1 High 3 2 High 2 3 High 1 4 Normal 0 4 000 m 13 123 ft 3 000 m 9 842 ft 2 000 m 6 561 ft 1 000 m 3 280 ft 4 3 2 1 Before you set the altitude value determine the altitude where you are You can set the altitude value from Device Settings or Machine section in Printer Settings Utility program For W...

Page 67: ...part 1 Pressure Roller 62 8 mm Background 2 Heat Roller 63 7 mm Black spot and image ghost Fuser Unit 3 Charging Roller 26 7 mm Black Spot and line and periodic band 4 OPC Drum 62 9 mm White and Black Spots 5 Developing Roller 33 7 mm White spot Horizontal black band 6 Supply Roller 78 2 mm Periodic Band by little difference of density Toner Cartridge 7 Transfer Roller 39 3 mm Ghost Damaged image ...

Page 68: ...res provide a gateway to conveniently use your Samsung machine Samsung Easy Printer Manager provides two different user interfaces for the user to choose from the basic user interface and the advanced user interface Switching between the two interfaces is easy just click a button Understanding Samsung Easy Printer Manager To open the program For Windows Select Start Programs or All Programs Samsun...

Page 69: ...or managing the network and machines Device Settings You can configure various machine settings such as machine setup paper layout emulation network and print information Scan to PC Settings This menu includes settings to create or delete scan to PC profiles Scan Activation Determines whether or not scanning is enabled on the device Profile Displays the scanning profiles saved on the selected devi...

Page 70: ...indows task bar Icon Mean Description Normal The machine is in ready mode and experiencing no errors or warnings Warning The machine is in a state where a soft error has occurred For example a toner low status which may lead to toner empty status Error The machine has at least one hard error such as out of paper fuser error etc Machine does not have ability to come to ready without customer interv...

Page 71: ...ner cartridge The machine and the number of toner cartridge s shown in the above window may differ depending on the machine in use Some machines do not have this feature 2 Buy Now You can order replacement toner cartridge s from online 3 User s Guide You can view the online User s Guide NOTE This button opens the Troubleshooting Guide when an error occurs You can directly open the troubleshooting ...

Page 72: ...rinter Firmware file to update Upgrade Procedure 1 Turn the machine off 2 Connect USB cable to printer 3 Turn the machine on Check if the printer is the ready status 4 Drag the firmware file and Drop down on the usblist2 exe And then firmware update will be started automatically 5 When upgrading is completed machine is automatically re booting 4 13 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 73: ...b Tech mode menu Depth 1 Depth 2 Depth 3 Send Level 9 15 DTMF Level High 0 15 Pause Time 1 9 Dial Mode Tone Pulse Modem Speed 33 6 28 8 14 4 12 0 9 6 4 8 Error Rate 5 10 Clear All Mem Toner Low Level 1 30 10 Clear Count Engine Footer Off On Dial Tone Off On Caller ID Off On Data Setup Wrap Jam Clear Yes No Switch Test Modem Test Dram Test Rom Test Shading Test Machine Test Scan Aging All Report Pr...

Page 74: ... rate is about exceed the set value the Baud rate automatically adjusts to 2400 bps This ensures that the error rate remains below the set value You can select the rate between 5 and 10 Clear All Memory The function resets the system to factory default settings This function is used to reset the system to the initial value when the product is functioning abnormally All the values are returned to t...

Page 75: ...shows the sequence of the CCITT group 3 T 30 protocol during the most recent sending or receiving operation Use this list to check for send and receive errors Supplies Info Supplies Information Report shows toner cartridge information such as toner remaining toner capacity toner product date etc Configuration Configuration report shows the status of the user selectable options You may print this l...

Page 76: ...30 Black Dev Bias Black Dev bias voltage on at normal drive level Output On Off 107 0030 Black THV Bias Black THV bias voltage on at normal drive level Output On Off 107 0031 Black THV Bias Black THV bias voltage on at normal drive level Output On Off 109 0000 Fuser Temperature A Detects what the temperature A is on fuser Input Numeric 3 digits 109 0050 Fuser Bias Fuser bias voltage on at normal d...

Page 77: ...ain a detailed description of the problem from the customer Power On Red LED on Error message is displayed OPE LED Green OK Print test page Printing quality is nomal Refer to Solution of Image Problem See the troubleshooting for error code END No Power Power Module error Main PBA OPE LED ON Copyright 1995 2011 SAMSUNG All rights reserved 4 18 ...

Page 78: ...curs repeatedly at a specific point in the Paper Path Open the fuser cover Jam clear Dismantle the machine and carefully inspect the region where the jam occurs Especially check if paper fragments are caught in the Fuser 4 Print the Information Page Configuration Try printing a test page from a computer If there is an error check cables and driver installation 5 Check the Print Quality Is there ar...

Page 79: ...0 Error C2 1710 Call for Service Page 4 21 C2 1711 Error C2 1711 Call for Service Page 4 21 C2 1712 Error C2 1712 Call for Service Page 4 21 M2 1110 Paper Jam inside machine Page 4 22 M2 1116 Paper jam or empty Page 4 22 M2 1317 Paper Jam inside machine Page 4 23 S2 4110 Door open Close it Page 4 23 U1 2320 Error U1 2320 Turn off then on Page 4 24 U1 2330 Error U1 2330 Turn off then on Page 4 24 U...

Page 80: ...idge Error C2 1710 Call for Service Error C2 1711 Call for Service Error C2 1712 Call for Service Symptom The toner cartridge is not installed The machine can t detect the toner cartridge The CRUM has a problem Troubleshooting method 1 Check if the toner cartridge is installed If it is OK turn the machine off then on 2 If the error message is not disappear remove the toner cartridge Thoroughly rol...

Page 81: ... inside machine Paper jam or empty Symptom A paper jam was detected at the feed sensor Troubleshooting method 1 Remove the jammed paper Refer to 4 1 3 Jam removal 2 If the jammed paper occurs continually check the followings a Check if the pick up rubber or friction pad is worn out or contaminated Clean the contaminated part or replace it b Check if the connector is connected to the feed sensor PB...

Page 82: ...aper 2 Entering Tech Mode Menu 1 9 3 4 3 Select Data Setup 4 Wrap Jam Clear Select Yes by Ok button and the machine is rebooted after Error Clear Error Code S2 4110 Error message Door open Close it Symptom Top cover is open or the cover open switch is defective Troubleshooting method 1 Check if the top cover is closed perfectly Open and close it 2 Remove the right cover Check if the connection bet...

Page 83: ...d 1 Turn the machine off Re install the fuser unit Then turn the machine on Is the error message is disappeared 2 If the problem persists turn the machine off and remove the fuser unit a Check if the fuser connector is connected properly b Check if the input voltage is normal c Check if the thermistor is twisted or contaminated 3 After confirming continuity in the fuser connector and the problem s...

Page 84: ...ng method 1 Check if the LSU harness on the main board is connected properly picture 1 2 If it is OK check that the LSU harness on LSU board is connected properly picture 2 3 3 Check if the LSU harness is defective picture 4 5 4 If the problem persists replace the LSU 5 If the problem persists after replacing LSU replace the main board 4 25 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 85: ...ror persists turn the machine off then on 3 If the document jam occurs continually check that the ADF roller is contaminated or worn out Clean or replace it 4 If the ADF roller is OK check that the ADF motor is working normally 5 If the problem persists replace the ADF unit Error Code U3 4110 Error message Scanner Door Open Symptom ADF unit is opened Troubleshooting method 1 Close the ADF unit Cop...

Page 86: ...fer roller 2 Vertical White Line Description White vertical voids occurs in the printed image Check and cause Solution Foreign matter stucks onto the window of internal lenses of LSU mirror Clean the LSU window with recommended cleaner IPA Clean the window with a clean cotton swab The life of the toner cartridge has been expired Replace the toner cartridge Some foreign substances are on the window...

Page 87: ...lution If dark or blurry black spots occur periodically the rollers in the toner cartridge may be contaminated with foreign matte or paper particles Charge roller 26 7 mm interval OPC drum 62 9 mm interval Clean each voltage terminal of the Charge Developing roller and Transfer roller remove the toner particles and paper particles If faded areas or voids occur in a black image at intervals of 62 9...

Page 88: ...ck if the high voltage terminal is contaminated Clean the high voltage terminal The charging roller is defective Replace the toner cartridge The output from the SMSP HVPS is abnormal Replace the SMPS HVPS board 7 Uneven Density Description Print density is uneven between left and right Check and cause Solution The pressure force on the left and right springs of the transfer roller is not even The ...

Page 89: ...pired Replace the toner cartridge The output from the SMPS HVPS is abnormal Replace the SMPS HVPS board 9 Ghost Description Ghost occurs at 62 9 mm intervals of the OPC drum Check and cause Solution The high voltage terminal is contaminated Clean the high voltage terminals The life of the toner cartridge has been expired Replace the toner cartridge The life of the transfer roller has been expired ...

Page 90: ...in board or SMPS HVPS board is defective replace it 12 Partial image void Description The partial void occurs in the printed page Check and cause Solution The printer is not installed on flat ground Install the printer on flat ground Print 10 sample pages for test The developer circulation in the toner cartridge is bad 1 Shake the toner cartridge 2 3 times from right to left Reinstall the toner ca...

Page 91: ...if necessary Pick up roller is worn out or contaminated Clean or replace the pick up roller 2 No Power Description When system power is turned on LED and LCD on the operator panel do not come on Check and cause Solution The connection between main board and OPE board is bad Reconnect or replace the harness HVPS SMPS output is abnormal Replace the HVPS SMPS board Copyright 1995 2011 SAMSUNG All rig...

Page 92: ...t d i W r o s n e S d e e F r o s n e S S P V H S P M S 1 2 3 4 2 1 1 1 0 1 9 8 7 6 5 4 3 2 1 5 4 3 2 1 R E S U F L O R T N O C P 2 R O T S I M R E H T P 3 P 4 r e v o C P O T h c t i w S o r c i M V 3 3 V 4 2 S V 4 2 V 3 3 V 4 2 e c i v e D B S U P 6 1 P 8 P 0 3 P 2 1 P 4 P 5 P 2 P 4 M A R D S 2 R D D C 3 G C 6 1 M 2 3 U T 5 T N M O R P E E A E 1 X 2 1 5 4 2 M B K 4 6 h s a l F L A I R E S U B X ...

Page 93: ...P OWER nP OWER_S W nKEY_P OWER_SW nRS T_P ANEL P ANEL_TXD nS CANNER_HOME nKEY_P OWER_S W NC N I A M r e l l o r t n o C 9 1 N C F I E P O h t d i W r o s n e S d e e F r o s n e S 1 2 5 N C R O T O M GND 5V DATA 7 DATA 6 DATA 5 DATA 4 DATA 3 DATA 2 DATA 1 DATA 0 GND ADDR 0 ADDR 1 ADDR 2 ADDR 3 ADDR 4 ADDR 5 ADDR 6 GND nHOOK_DET nCS _MODEM nRD nWR N C nRS T_MODE M nINT_MODEM KEYCLICK 3 3V 3 3V GND ...

Page 94: ...e and easy troubleshooting as described in this service manual DVM Digital Volt Meter Standard Indicates more than 3 digits Cleaning Equipments Standard An IPA Isopropyl Alcohol dry wipe tissue or a gentle neutral detergent and lint free cloth Driver Standard type type M3 long M3 short M2 long M2 short Vacuum Cleaner Tweezers Standard For general home use small type Spring Hook Standard For genera...

Page 95: ...ting systems running on them The BOOTP servers assign the IP address from a pool of addresses to each client BOOTP enables diskless workstation computers to obtain an IP address prior to loading any advanced operating system CCD Charge Coupled Device CCD is a hardware which enables the scan job CCD Locking mechanism is also used to hold the CCD module to prevent any damage when you move the machin...

Page 96: ...f external behavior which is in contrast to simulation which concerns an abstract model of the system being simulated often considering its internal state Ethernet Ethernet is a frame based computer networking technology for local area networks LANs It defines wiring and signaling for the physical layer and frame formats and protocols for the media access control MAC data link layer of the OSI mod...

Page 97: ...t produces world wide industrial and commercial standards ITU T The International Telecommunication Union is an international organization established to standardize and regulate international radio and telecommunications Its main tasks include standardization allocation of the radio spectrum and organizing interconnection arrangements between different countries to allow international phone calls...

Page 98: ...come an industry standard Originally developed for early inkjet printers PCL has been released in varying levels for thermal dot matrix printer and laser printers PDF Portable Document Format PDF is a proprietary file format developed by Adobe Systems for representing two dimensional documents in a device independent and resolution independent format PostScript PS PostScript PS is a page descripti...

Page 99: ...N compliant program a scan can be initiated from within the program It is an image capture API for Microsoft Windows and Apple Macintosh operating systems UNC Path Uniform Naming Convention UNC is a standard way to access network shares in Window NT and other Microsoft products The format of a UNC path is servername sharename Additional directory URL Uniform Resource Locator URL is the global addr...

Page 100: ...nection easily without a computer XPS XML Paper Specification XPS is a specification for a Page Description Language PDL and a new document format which has benefits for portable document and electronic document developed by Microsoft It is an XML based specification based on a new print path and a vector based device independent document format 6 7 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 101: ...ference Information 6 3 The Sample Pattern for the Test The life of the toner cartridge and the printing speed are measured using the pattern shown below Copyright 1995 2011 SAMSUNG All rights reserved 6 8 ...

Page 102: ...tilated and away from direct sunlight or sources of heat cold and humidity Do not set the machine close to the edge of your desk or table Clearance space Front 326 mm enough space so that the paper tray can be removed Back 100 mm enough space for ventilation Right 100 mm enough space for ventilation Left 100 mm enough space for ventilation 6 9 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 103: ...apan https gspn2 samsungcsportal com N America S America https gspn3 samsungcsportal com 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 2011 Samsung Electronics Co Ltd All rights reserved Printed in Korea Code No ...

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