Samsung SCX-340x Series Service Manual Download Page 97

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4. Alignment and Troubleshooting

4.2. Troubleshooting

4.2.1. Procedure of checking the symptoms

Before attempting to repair the printer first obtain 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?

4-31

Summary of Contents for SCX-340x Series

Page 1: ...EMANUAL Mono Laser MFP Contents 1 Precautions 2 Product specification and description 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: ... 2 2 Copier 2 2 2 1 2 3 Scan Specification 2 3 2 1 2 4 Fax 2 4 2 1 2 5 Controller and Software 2 5 2 1 2 6 Paper Handling 2 7 2 1 2 7 Consumables 2 8 2 1 2 8 Maintenance Part 2 8 2 1 2 9 Reliability and Service 2 8 2 1 2 10 Environment 2 9 2 1 2 11 Accessories 2 10 2 1 3 Model Comparison Table 2 11 2 2 System Overview 2 12 2 2 1 Front View 2 12 2 2 2 Rear View 2 14 2 2 3 Paper Path 2 15 2 2 4 Syst...

Page 3: ...s 3 1 3 1 1 Precautions when assembling and disassembling 3 1 3 1 2 Preautions when handling PBA 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 Right and Left cover 3 4 3 3 2 Scanner Unit 3 5 3 3 3 ADF Unit 3 6 3 3 4 CIS Unit 3 7 3 3 5 OPE Unit 3 8 3 3 6 Front Cover 3 9 3 3 7 Middle Cover 3 10 3 3 8 Rear Cover 3 11 3 3 9 Main b...

Page 4: ...4 20 4 1 7 1 Update the firmware by using the USB port 4 20 4 1 7 2 Update the firmware by using the network 4 21 4 1 8 Tech Mode 4 23 4 1 8 1 Tech mode 4 in 1 model 4 23 4 1 8 2 Tech Mode 3 in 1 model 4 27 4 1 9 EDC program 3 in 1 model only 4 30 4 2 Troubleshooting 4 31 4 2 1 Procedure of checking the symptoms 4 31 4 2 1 1 Basic Check List 4 32 4 2 2 Error Code and Troubleshooting 4 33 4 2 3 Ima...

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: ... 340xFW 128 M 6 Interface High speed USB 2 0 10 100 BaseTX network connector 802 11b g n wireless LAN SCX 340xFW 7 Toner cartridge Initial 0 7 K Sales 1 5K 2 1 2 Specifications Product Specifications are subject to change without notice 2 1 2 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 s...

Page 11: ...nting 600 x 600 dpi Platen Text Photo Scan 300 x 300 dpi Printing 600 x 600 dpi ADF Scan 600 x 300 dpi Printing 600 x 600 dpi Platen Copy Resolution Photo Scan 600 x 300 dpi Printing 600 x 600 dpi ADF Scan 600 x 600 dpi Printing 600 x 600 dpi Platen Original Type Factory Default Text Photo Platen A4 Max Original Size ADF Legal 8 5 x 14 Multi Copy 1 99 Automatic Paper Selection No Manual Paper Sele...

Page 12: ...c on Platen 70 sec on ADF Optical 1 200 x 1 200 dpi Resolution Enhanced 4 800 x 4 800 dpi Halftone 256 levels Max Document Width Max 216 mm 8 5 Effective Scan Width Max 208 mm 8 2 Max Document Length ADF 356 mm 14 P Platen 297 mm 11 7 Scan Size Effective Scan Length ADF 348 mm 13 7 Platen 289 mm 11 4 Color Internal 16 bit x 3 External 8 bit x 3 Scan Depth Mono 1 bit for Lineart Halftone 8 bits for...

Page 13: ...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 Selectable in Tech Mode Pause Yes Auto Redial Yes Last Number Redial Yes Caller ID Yes Telephone Features External Phone Interface Yes Copyright 199...

Page 14: ...0 5 0 32 64 bit Supporting 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 ICDM Yes Windows 2000 XP 32 64bits Vista 32 64bits 2003 Serve...

Page 15: ...ts Mac Mac OS 10 4 10 7 Linux RedHat 8 9 32bit Enterprise Linux WS 4 5 32 64bit Fedora Core 1 7 32 64bit SuSE 8 2 10 2 Enterprise Desktop 9 10 32 64bit Madrake 9 2 10 1 32 64bit Mandriva 2005 2007 Ubuntu 6 06 7 04 Debian 3 1 4 0 Protocol 802 11 b g n Wireless Network SCX 340xW FW only Supporting OS Same as wired network Application Samsung Easy Printer Manager Smart Panel Network Management For Wi...

Page 16: ...ia sizes A4 A5 Letter Legal Executive Folio Oficio 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 Supportin...

Page 17: ...span may differ 2 1 2 8 Maintenance Part Item Part Code Life Fuser Unit JC91 01075A 220V JC91 01074A 110V 30 000 Pages Transfer Roller JC66 02709A 30 000 Pages Pick Up Roller Assy JC93 00525A 30 000 Pages Friction Pad JC93 00522A 30 000 Pages ADF Feed roller JC97 03959A ADF Unit 20 000 Pages ADF Rubber pad JC97 03959A ADF Unit 20 000 Pages 2 1 2 9 Reliability and Service Items Specification Printi...

Page 18: ...Document feeder Less than 51 dB A Scan mode Scanner glass Less than 52 dB A Document feeder Less than 53 dB A Temperature Operation 10 32 C 50 90 F Humidity Operation 20 80 RH 110 volt models AC 110 127 V Power rating 220 volt models AC 220 240 V Average operating mode Less than 230 W Ready mode Less than 35 W Power save mode Less than 1 0 W Power Consumption Power off mode Less than 0 45 W 0 1 W ...

Page 19: ...stallation guide Software CD The software CD contains the printer drivers and software applications Misc accessories Miscellaneous accessories included with your machine may vary by country of purchase and specific model Handset Handset model only Copyright 1995 2011 SAMSUNG All rights reserved 2 10 ...

Page 20: ...ss than 8 5 sec less than 8 5 sec less than 8 5 sec Processor 433 MHz 375 MHz 400 MHz Memory 64 MB 128 MB 64 MB Emulation GDI GDI PCL5e GDI Input 150 Bin 150 CST 150 Bin Output 100 sheet 50 sheet 100 sheet Paper Capacity ADF 40 sheet N A 35 sheet Noise 50 dBA 49 dBA 51 dBA Toner Cartridge 1 5K 0 7K 1 5K 0 7K 1 6K 0 7K 2 11 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 21: ...iffer from your machine depending on your model There are various types of machine Some features and optional goods may not be available depending on model or country Type A 6 5 1 2 4 3 7 8 9 10 1 Scanner lid 2 Control panel 3 Tray 4 Tray handle 5 Output support 6 Output tray 7 Scanner glass 8 Scan unit 9 Inner cover 10 Toner cartridge Copyright 1995 2011 SAMSUNG All rights reserved 2 12 ...

Page 22: ...cument feeder output support 5 Control panel 6 Handle 7 Tray 8 Tray handle 9 Output support 10 Output tray 11 Scanner lid 12 Scanner glass 13 Paper width guide on a document feeder 14 Document feeder input support 15 Document feeder input tray 16 Handset 17 Scan unit 18 Inner cover 19 Toner cartridge Handset model SCX 340xFH only 2 13 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 23: ...here are various types of machine Some features and optional goods may not be available depending on model or country Type A 1 2 1 USB port 2 Power receptacle Type B 1 2 5 3 4 1 USB port 4 Telephone line socket Line 2 Network port 5 Power receptacle 3 Extension telephone socket EXT Copyright 1995 2011 SAMSUNG All rights reserved 2 14 ...

Page 24: ...Product specification and description 2 2 3 Paper Path The following diagram displays the path the paper follows during the printing process ADF Engine 2 15 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 25: ...gine parts consists of the mechanical parts comprising 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 LSU 2 Plate Bottom 3 Pick up roller 4 Feed roller 5 Transfer roller 6 Toner cartridge 7 Fuser unit 8 Exit roller1 9 ADF Copyright 1995 2011 SAMSUNG All rights reserved 2 16 ...

Page 26: ...g method and applies friction 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 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 17 Copyrigh...

Page 27: ... 30 C 2 2 4 3 Drive Unit In SCX 340x 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 18 ...

Page 28: ...rmistor 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 ...

Page 29: ...ce Software 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 20 ...

Page 30: ...rror The 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 pape...

Page 31: ...ng roller 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...

Page 32: ... 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 2 1 P 4 P 3 P 1 1 P 5 P 2 P 4 y l n O W F 1 2 4 3 X C S M A R D S 2 R D D C 3 G C 6 1 M 2 3 U T 5 T N B M 8 2 1 W F B M 4 6 P 0 6 7 F 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...

Page 33: ...2 Product specification and description Circuit board locations The following diagrams show the locations of the printer circuit boards Copyright 1995 2011 SAMSUNG All rights reserved 2 24 ...

Page 34: ...ts process speed is 433 MHz It is integrated engine controller video controller scan controller DDR2 128MB is adopted for high speed data processing Boot has 8 MB SPI 8 MB SPI USB is the embedded type and wired network supports 100M full duplex Main board diagram 2 25 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 35: ...ctor 6 Wireless module interface connector Wireless model only 8 Sensor connector 9 Pick up connector 11 USB device connector 12 Fuser thermistor interface connector 13 Scan motor connector 15 Scan home sensor connector 16 CIS interface connector Information Part code JC92 02433A G SCX 340x JC92 02444A G SCX 340xW Part name PBA MAN Copyright 1995 2011 SAMSUNG All rights reserved 2 26 ...

Page 36: ...el only 7 Fax board interface connector 8 Sensor connector 9 Pick up connector 10 Wired network connector Wireless model only 11 USB device connector 12 Fuser thermistor interface connector 13 Scan motor connector 14 ADF Module interface connector 15 Scan home sensor connector 16 CIS interface connector Information Part code JC92 02434A SCX 340xF JC92 02434B SCX 340xFW Part name PBA MAN 2 27 Copyr...

Page 37: ...1 Satus LED IC Copy LED Scan To LED ECO LED WPS LED 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 02415A Part name PBA OPE Connection 1 Interface connector to main board Copyright 1995 2011 SAMSUNG All rights reserved 2 28 ...

Page 38: ...D Mode LED 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 02404A Part name PBA OPE Connection 1 Interface connector to main board 2 29 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 39: ...dec 1 2 Information Part Code JC92 01746D E Part Name PBA LIU Connection 1 Interface connector to main controller 2 Speaker interface 2 2 5 4 Wireless LAN board wireless model only The Wireless LAN Module supports 802 11b g n It communicates with video controller via SPI WLAN board image Information Part Code JC92 02402A PBA name PBA WNPC Connection 1 Interface connector to main board JC39 01565A ...

Page 40: ...er input 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 connecto...

Page 41: ... PWM_MHV 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 Copyright 1995 20...

Page 42: ...over Open sensor ADF board Cover open detection S2 Photo interrupter Home Position sensor Main board CIS detection S3 Switch Front Cover SMP HVPS board Cover open detection S4 Photo interrupter width Sensor Main board Paper detection S5 Photo interrupter Feed Sensor Main board Paper detection 2 33 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 43: ...2 Product specification and description 2 Motor Clutch No Description M1 ADF motor M2 Scan motor M3 Main motor C1 Pick up Clutch Copyright 1995 2011 SAMSUNG All rights reserved 2 34 ...

Page 44: ...eed sensor 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 t...

Page 45: ...ing unit 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 in...

Page 46: ...iver 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 4 Web based Application offers the same functions as Stand alone Application in Web environment Firmware is made up of 1 Application Emulation th...

Page 47: ...gement of printing job printer administration Status monitor to monitoring the printer status by real time in Web independent environment on OS 3 Stand alone Application that is a similar Window software as same as above 2 4 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 ma...

Page 48: ...o data and start selected one After emulation job end Kernel sends the output bit map data to Engine using Printer Video Controller by clock type for LSU Engine print the received data to required paper with the sequential developing process 2 Case of using Network Interface Card After user start to print the wanted document to PCL string or compressed GDI bit map data Driver translate the all gra...

Page 49: ...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 50: ...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 3 2 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 51: ...3 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 2 6003 000196 OPE SCREW TAPTYPE PWH B M3 L10 NI PLT SWRCH18A 4 6003 000282 SCANNER SCREW TAPTYPE BH B M3 L8 ZPC BLK SWRCH18A 4 6003 000196 PLATEN SCREW TAPTYPE PWH B M3 L10 NI PLT SWRCH18A 4 6003 000196 ...

Page 52: ...ts NOTE The color of machine may differ from your machine depending on its model 3 3 1 Right and Left cover 1 Open the Scanner 2 Remove 2 screws from the rear 3 Release the right cover 4 Release the left cover 3 4 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 53: ... Refer to 3 3 1 2 Unplug the connectors connecting the Scanner Unit on the Main board 3 Open the Scanner Unit 4 Release the scanner hinge while pushing the platen bottom connecting it 5 Lift up and release the Scanner Unit Copyright 1995 2011 SAMSUNG All rights reserved 3 5 ...

Page 55: ...move 4 screws from the bottom of the platen 3 Remove the platen upper from the platen lower 4 Unplug the CIS flat cable Release the CIS Unit 5 Release the Belt Timing Gear Remove 3 screws And release the Scan Drive Unit Belt Timing Gear Copyright 1995 2011 SAMSUNG All rights reserved 3 7 ...

Page 56: ... 2 screws 2 Remove the Holder OPE 3 Open up the OPE Unit 4 Pull the OPE unit to the right and release it 5 Remove the OPE back cover after removing 4 screws 6 Remove the OPE board after removing 1 screw 3 8 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 58: ... Cover 1 Remove 2 screws from the front 2 Remove 2 screws from the top 3 Remove 1 screw 4 Release both jam levers from the jam cover 5 Lift up the middle cover after releasing the hooks Hook 3 10 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 59: ...ver 1 Release the connectors from the rear cover 2 Release the rear cover after 3 screws 3 3 9 Main board 1 Unplug all connectors on the main board 2 Remove 4 screws 3 Release the main board Copyright 1995 2011 SAMSUNG All rights reserved 3 11 ...

Page 60: ...Unplug the flat cable 2 Remove 1 screw 3 Release the WLAN board 3 3 11 Fax board 1 Unplug the flat cable Remove the fax cover after removing 2 screws 2 Release the fax board after removing 2 screws 3 12 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 61: ...ove the main board and fax board 2 Remove the shield controller after removing 4 screws 3 Remove 1 screw securing the SMPS cover 4 Remove the SMPS cover 5 Release the SMPS HVPS board after removing 8 screws Copyright 1995 2011 SAMSUNG All rights reserved 3 13 ...

Page 62: ... Unit 1 Remove the main board Refer to 3 3 8 2 Unplug the fuser connector 3 Release the fuser unit after removing 3 screws 3 3 14 Drive Unit 1 Release the Drive Unit after removing 4 screws 3 14 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 63: ... 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 Copyright 1995 2011 SAMSUNG All rights reserved 3 15 ...

Page 64: ...nsor PBA 1 Remove the rear cover Refer to 3 3 7 2 Unplug the connector after releasing the Feed Sensor PBA 3 3 17 Pick up roller 1 Remove 2 screws from the bottom 2 Release the pick up roller 3 16 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 65: ...3 Disassembly and Reassembly 3 3 18 Motor 1 Release the left frame after removing 7 screws 2 Release the motor after removing 2 screws Copyright 1995 2011 SAMSUNG All rights reserved 3 17 ...

Page 66: ...plug the connectors on main board Release the scanner hinge And release the scanner unit refer to 3 3 2 4 Release the rear cover after removing 6 screws 5 Push the Bush TR from the rear and remove the Transfer roller from the front 6 When reassembling it push the bush TR in two direction like below picture 3 18 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 67: ...r Jam removing method and so on It includes the contents of user guide 4 1 1 Control Panel NOTE This control panel may differ from your machine depending on its model There are various types of control panels SCX 340x 340xW 3in1 model 12 13 1 Eco Turn into eco mode to reduce toner consumption and paper usage 2 WPS Configures the wireless network connection easily without a computer Copyright 1995 ...

Page 68: ... of an ID card facing down on the scanner glass 7 Back LED When the LED lights on place the back side of an ID card facing down on the scanner glass 8 Stop Clear Stops an operation at any time and there are more functions Cancels the current job Prints demo page Press and hold this button for about 2 seconds until the status LED blinks slowly and release Supplied Info Event Log Press and hold this...

Page 69: ...rating systems You can only use this function with USB connected machine When printing the active window whole monitor screen using the print screen button the machine may use more toner depending on what is being printed You can only use this function if the machine s Easy Printer Manager program is installed 3 ID Copy Allows you to copy both sides of an ID card like a driver s license on a singl...

Page 70: ...ndicates the status of your machine 15 Numeric keypad Dials a number or enters alphanumeric characters 16 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 17 Redial Pause Redials the last number in ready mode or inserts a pause into a fax number in edit mode 18 Address Book Allows you to store frequently use...

Page 71: ...tridge 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 Blinking Upgrading firmware Status Orange On A paper jam has occurred Blinking The machine is connecting to a wireless network On The machine is connected to a wireless network WP...

Page 72: ...ity of print outs and is designed pursuant to ISO IEC 19752 The number of pages may be affected by operating environment percentage of image area printing interval graphics media and media size Some amount of toner may remain in the cartridge even when red LED is on and the printer stops printing 4 6 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 73: ...er s guide may differ from your machine depending on its options or models Original paper jam in front of scanner 1 Open the document feeder cover 00 0 0 0 0 0 0 2 Gently remove the jammed paper from the document feeder 3 Close the document feeder cover 00 0 0 0 0 0 0 Copyright 1995 2011 SAMSUNG All rights reserved 4 7 ...

Page 74: ...0 0 0 0 2 Gently remove the jammed paper from the document feeder 3 Close the document feeder cover 0 0 0 0 0 0 0 0 4 Open the document feeder 5 Grasp the misfeed paper and remove the paper from the feed area by carefully pulling it 6 Close the document feeder 4 8 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 75: ... NOTE To avoid tearing the paper pull the jammed paper out slowly and gently In Tray 1 Remove the jammed paper by gently pulling it straight out Inside the machine 1 Open the scanner unit 2 Open the jam cover Copyright 1995 2011 SAMSUNG All rights reserved 4 9 ...

Page 76: ...by gently pulling it straight out 5 Close the fuser dummy cover 6 Close the jam cover And then close the scanner unit 1 2 If you do not see the paper in this area stop and go to next step 7 Open the scanner unit 8 Open the middle cover 4 10 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 77: ...ng 9 Remove the toner cartridge 10 Remove the jammed paper by gently pulling it straight out 11 Reinstall the toner cartridge 12 Close the middle cover 13 Close the scanner unit Copyright 1995 2011 SAMSUNG All rights reserved 4 11 ...

Page 78: ...lowing information will guide you on how to set your machine for the best print quality Before you set the altitude value determine the altitude where you are 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 You can set the altitude value from Device Settings or Machine section in Printer Settings Utility program For Windows and Mac...

Page 79: ...art 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 b...

Page 80: ...es 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 Samsung...

Page 81: ...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 82: ...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 83: ...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 84: ...PC network connected SWS overview SyncThru Web Service SWS accepts HTTP request via port 80 as normal web servers provides interface to users information of networked printers and allow to configure the setting of printers is able to provide more complicated options than Local UI for printer configuration Connection Procedure 1 Open the Web browser and input IP address of machine Click Login 2 Log...

Page 85: ...r your security Firstly you have to login to SWS 1 Click Direct Print Configuration in the pop up windows when clicking Direct Print 2 In the Services Menu check Direct Print Or 1 Click System Security in the Security menu 2 Select Feature Management in the left frame 3 In the Services Menu check Direct Print Copyright 1995 2011 SAMSUNG All rights reserved 4 19 ...

Page 86: ... firmware by using the USB port Upgrading preparations usblist2 exe Tool which sends firmware data to printer 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 ...

Page 87: ...Wired or Wireless Network connection is established Firmware file to update Upgrade Procedure 1 Open the Web browser and input IP address of machine Click Login 2 Log in Admin Mode ID admin PW sec00000 3 Select Maintenance menu and click upgrade wizard Copyright 1995 2011 SAMSUNG All rights reserved 4 21 ...

Page 88: ... browser button and press next button 5 SyncThru will check verify firmware file and compare version and press next button 6 Machine starts upgrading SyncThru will return home page after upgrading is completed 4 22 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 89: ... continuously 2 Press Menu 3 Select Tech Mode b Tech mode menu NOTE This function does not supported for SCX 340x SCX 340xW Series 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 Data Setup Caller ID Off On ...

Page 90: ...e Time It shows the delay time when receiving the pause input at auto dial Dial Mode This function can choose dial method Default Dial Dial Pulse Modem Speed You can set the maximum modem speed Communication is done with modem speed automatically set at lower speed when communicating with a slower speed modem since communication is done on the standard of the side where modem speed is low for tran...

Page 91: ...Test 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 part of the main board malfunctioned Dram Test Use this feature to test the machine s DRAM The result appears in the LCD display Shading Test The function is to get the optimum scan quality by the specific character of th...

Page 92: ...from tray1 Output On Off 102 0290 Feed Sensor Detect when a paper is at Feed sensor Input High Low 105 0030 Black MHV Bias Black MHV bias voltage on at normal drive level Output On Off 106 0030 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 volt...

Page 93: ...ode during 30 seconds machine return user mode Time is depend on machine timeout You can t enter tech mode when machine is working e g printing scanning coping Machine will not enter sleep mode in tech mode b Tech mode menu LCD Display Description 1 UC Print usage counter report UC 2 SO Print Shading Report Report prints out after shading 3 SI Print Supplies Info Report 4 EL Print Event Log 5 AA P...

Page 94: ...ice factory clear country number will be displayed on 7 segment Select country number using Up Down key Country Number UK 0 FRANCE 1 AUSTRIA 2 SWITZERLAND 3 ITALY 4 SPAIN 5 PORTUGAL 6 NORWAY 7 FINLAND 8 SWEDEN 9 NETHERLANDS 10 DENMARK 11 BELGIUM 12 HUNGARY 13 POLAND 14 CZECH 15 ROMANIA 16 BULGARIA 17 IRELAND 18 GERMANY 19 Country Number GREECE 20 TURKEY 21 RUSSIA 22 SOUTHAFRICA 23 INDIA 24 SRILANK...

Page 95: ...RIA 110 MALTA 111 LIECHTENSTEIN 112 ALBANIA 113 MACEDONIA 114 BOSNIA 115 LAOS 116 NEPAL 117 LIBYA 118 NIGERIA 119 KENYA 120 TANZANIA 121 SUDAN 122 PALESTINE 123 MONTENEGRO 124 3 Press Start Key 4 Machine will execute memory cleaning 5 After factory memory clearing machine power off NOTE You can cancel if machine state in 1 3 sequence number You can t cancel factory clearing during 4 sequence numbe...

Page 96: ...ton 5 To exit the EDC Mode press the Exit button 2 EDC mode menu Displayed Name Meaning Main BLDC Motor Main BLDC Motor is On Off T1 Pick Up Clutch Engages drive to pick up a paper from tray1 Feed Sensor Detect when a paper is at Feed sensor Black MHV Bias Black MHV bias voltage on at normal drive level Black Dev Bias Black Dev bias voltage on at normal drive level Black THV Bias Black THV bias vo...

Page 97: ...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 31 ...

Page 98: ...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 99: ... key Whenever you press cancel key during error codes are displayed then return to idle mode Automatically return Machine will return idle mode after all error codes are displayed Error Code Error Message Troubleshooting C2 1110 Prepare new cartridge Page 4 35 C2 1120 Replace new cartridge Page 4 35 C2 1140 Replace new cartridge Page 4 35 C2 1410 Install toner cartridge Page 4 35 C2 1510 Not Compa...

Page 100: ...Message Troubleshooting U2 1113 Error U2 1113 Turn off then on Page 4 41 U3 3313 Document jam Remove jam Page 4 42 U3 3314 Document jam Remove jam Page 4 42 U3 4110 Door of scanner is open Page 4 42 4 34 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 101: ...nstall cartridge 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 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 roll the cartr...

Page 102: ...e Paper jam or empty Symptom A paper jam was detected at the feed sensor Troubleshooting method 1 Check if paper is on tray 2 Remove the jammed paper Refer to 4 1 3 Jam removal 3 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 ...

Page 103: ...rebooting the machine Error Code S1 5221 Error message Install wireless NIC Symptom The communication error between the main board and the wireless board has occurred Troubleshooting method 1 Check if the connection between the main board and the wireless board is normal 2 If the connection is OK replace the flat cable 3 If the flat cable is OK replace the WLAN board 4 If the problem persists afte...

Page 104: ...eshooting method 1 Check if the top cover is closed perfectly Open and close it 2 Remove the right cover Check if the connection between the main board and SMPS HVPS board is correct 3 Check if the cover open switch on SMPS HVPS board is operated properly If it is defective replace the SMPS HVPS board 4 38 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 105: ...od 1 Check if the CIS unit moves when turning the machine off then on 2 Check if the CIS cable is connected correctly Reconnect it 3 If the CIS unit is defective replace it 4 Check if there is any defective part in the scanner Find and replace it 5 If the problem persists replace the main board Copyright 1995 2011 SAMSUNG All rights reserved 4 39 ...

Page 106: ... then on Error U1 2330 Turn off then on Error U1 2340 Turn off then on Symptom The temperature control of fuser unit is abnormal U1 2320 Open Heat Error U1 2330 Low Heat Error U1 2340 Over Heat Error Troubleshooting method 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...

Page 107: ...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 Copyright 1995 2011 SAMSUNG All rights reserved 4 41 ...

Page 108: ... open the ADF cover top Check if the ADF pick up roller is contaminated or worn out Clean or replace it 4 If the pick up roller is OK check the followings a Check if the ADF motor is working normally b Check if the connector on the ADF joint board is connected correctly 5 If the problem persists replace the ADF unit Error Code U3 4110 Error message Scanner Door Open Symptom ADF or ADF top cover is...

Page 109: ... the transfer 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 ...

Page 110: ...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 111: ...taminated terminal The output from the HVPS is abnormal Replace the HVPS board 6 Dark or Black page Description The printed image is dark or black Check and cause Solution Check 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 HVPS is abnormal Replace the HVPS board Copyright 1995 2011 SAMS...

Page 112: ...ransfer roller Assy has any wrong part 3 Replace the transfer roller Assy The toner level is not even on the toner cartridge roller due to the bad doctor blade Replace the toner cartridge 8 Background Description Light dark background appears in whole area of the printing Check and cause Solution Does recycle paper be used Use the proper papers The life of the toner cartridge has been expired Repl...

Page 113: ...gh voltage terminals The life of the toner cartridge has been expired Replace the toner cartridge The life of the transfer roller has been expired Replace the transfer roller 10 Stains on back of page Description The back of the page is stained Check and cause Solution Transfer roller is contaminated Replace the transfer roller Copyright 1995 2011 SAMSUNG All rights reserved 4 47 ...

Page 114: ...e 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 cartridge Print 10 sample pages for test 2 If the...

Page 115: ...ecessary 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 rights ...

Page 116: ...S 4 8 9 4 A 1 2 3 4 5 6 7 8 9 0 1 1 1 2 1 S N E S _ C _ F D A S P V H S P M S i F i W y l n O W F 1 2 4 3 X C S 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 2 1 1 1 0 1 9 8 7 6 5 4 3 2 1 5 4 3 2 1 S CAN HOME 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 2 1 P 4 P 3 P 1 1 P 5 P 2 P 4 y...

Page 117: ... F r o s n e S S P V H S P M S i F i W y l n O W 5 0 4 3 X C S 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 2 1 1 1 0 1 9 8 7 6 5 4 3 2 1 5 4 3 2 1 S CAN HOME 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 l o r t n o C R E S U F l o r t n o C y a l e R l o r t n o C S P V H e c i v e D B S U P 6 1 P 8 P 2 1 P 4 P 3 P 1 1 P 5 ...

Page 118: ... D N G S N E S _ R E V O C _ F D A n S O P _ P _ F D A n D N G U P V 3 3 U P V 3 3 U P V 3 3 A 1 T U O B 1 T U O A 2 T U O B 2 T U O CN11 ADF MOTOR I F 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 ...

Page 119: ...KEY_P OWER_S W nOP E_EN OP E_CLK OPE_DIN OP E_DOUT 5V N I A M r e l l o r t n o C 9 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 2 1 N C R O T O M h s a l F I P S 4 6 Q 5 2 W B M 4 0 0 4 3 X C S B M 8 W 5 0 4 3 X C S N O _ r e s u F V 4 2 D N G V 4 2 N O _ C A _ Y A L E R V 4 2 D N G D N G S V 4 2 D N G P P V _ V E D _ M W P V H T _ M W P N E _ V E D n V 3 3 C A _ V E D _ M W P R E ...

Page 120: ...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 121: ...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 122: ...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 123: ...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 124: ...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 125: ...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 126: ...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 127: ...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 128: ...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 129: ...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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Summary of Contents for SCX-340x Series

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