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1. Service Manual c Samsung Electronics ExplodedView and Parts list Frame Parts List ML 2240 SA SERVICE AVAILABLE SNA SERVICE not AVAILABLE Grade Parts Class A B C D E Drawer SEC CODE DESCRIPTION QT Y Service Grade Remark 2 0 JC96 05123A ELAUNIT FRAME F 1 2 22 227 222 223 2 24 CT4 000T1A 3 4 JC61 01259A PRING ETC TORSION DEVE R S S 5 JC96 05018A ELA UNIT DRIVE B B i 2 2 2 2 5 1 RACKET GEAR 252 253 25 4 5 2 5 5 JC66 01999A GEAR RDCN B 257 20 27 2 8 JC70 00499C ADJUST CASSETTE L 29 JG66 40003A 2 10 JG61 00836A 2 11 JC66 00807A IGEAR FUSER DR 63 35 2 12 2 18 24 S 2 15 JC63 00622A GROUND P OPC 2 16 6107 001503 SPRING CS DN DN OD W N N N N N N N N N N Z2 2Z2 2 2 ie Z gt m gt i DY DN OD DN DO MD N MW W Service Manual ED Samsung Electronics ExplodedView and Parts list 5 3 Frame Assembly ML 1640 Service Manual Samsung Electronics ExplodedView and Parts list Frame Parts List ML 1640 SA SERVICE AVAILABLE SNA SERVICE not AVAILABLE Grade Parts Class A B C D E Drawer SEC_CODE DESCRIPTION QTY Service Grade Remark 0 JC96 05120A ELA UNIT FRAME JC61 01152A FRAME M BASE mn gt gt i i n Z gt gt 02 gt gt 3 3 1 2 Jc97 02218A__ MEAUNIT PLATE KNOCK UP 1 3 2 4 LATE M
2. Service Manual Samsung Electronics Alignment amp Troubleshooting 4 1 5 2 Code Connect DCU to the printer and turn the power on It show 7 Segment FND on the panel and each code tells the function of the printer 1 Normal Code While printing or warming up it indicate the position of the paper 2 Error Code When detecting the malfunction the printing is stopped to indicate error code Code State Description 61 Warm up The printer is on the cover is open or close 00 05 Ready kind of paper The printer is ready the paper is detected when the first paper is printed 00 Legal 01 Letter 02 A4 03 EXEC 04 B5 05 Folio 06 A5 A6 20 21 22 Print Start The engine controller received the print order from the video controller 20 1st 21 MP 22 SCF 30 Feed Sensor On The paper is passing out of the Feed Sensor 40 Feed Sensor off The paper has passed out of the Feed Sensor 50 Paper Out The paper has passed out of Exit Sensor 69 Sleep Mode The fuser power turned off to minimize the power consumption Code State Description 60 62 68 Fuser Error The error in the fuser occurred There is a short circuit in the thermistor and the thermostat while printing Low Temperature Error occurs 60 Open Fuser Error 62 Low Heat Error 68 Over Heat Error 64 Cover Open The Printer Cover is open 65 CRU Error The Toner Cartridge not installed 70 No P
3. ExplodedView and Parts list 5 5 Paper Path Uni Samsung Electronics 5 11 Service Manual Paper Path Parts List Drawer SEC CODE 5 5 0 JC97 03248A MEA UNIT FRAME PAPER PATH 1 1 5 5 0 JC97 03199A MEA UNIT FRAME PAPER PATH 551 JC61 01161A 553 5 5 6 JC63 00624A ExplodedView and Parts list SA SERVICE AVAILABLE SNA SERVICE not AVAILABLE Grade Parts Class A B C D E DESCRIPTION GUIDE M PAPER PATH GROUND P ZENER GROUND P THV QTY Service Grade Remark 1640 2240 o al Lial olal olav gt E S S S gt S gt gt 5 5 7 JC63 00623A 5 5 8 JC63 00626A 55 9 JC97 02217A 5 5 11 3 5 5 12 JC33 00028B 5 5 13 JC66 00809A GEAR FEED 35 19 5 5 14 JC61 00588A JC72 00102A 5 5 16 JC61 70940A 15 5 17 JC66 00725A 5 5 18 JC61 00583A 5 5 19 JC70 00307A GROUND P SAW MEA UNIT HOLDER PAD SOLENOID MP BUSH M TRL PMO BUSHING TR L SPRING ETC TR 12 ROLLER TRANSFER HOLDER PTL IPR P EARTH TRANSFER SHAFT P PICK UP nmi I Ino nin LE E gt N c O o e k al k gt 5 5 20 JC66 00829A o 55 22 JC61 01173A 5 5 23 JC73 00211A 5 5 24 JC66 01935A 5 5 25 JC66 01936A 5 5 26 JC66 00813A 5 5 27 JC61 01281A 5 5 28 JC39 00482A 55 29 JC61 01548A 9c Occ cc c c x cq WM M W www 9o o ERES S S S S
4. 1 Paralle cable case Start Download Rom file with copy b b255_706 fls Ipt1 commend on Dos Mode Once Download are finished Reset Printer is indicated on LCD window Download finished Power ON OFF 2 USB cable case Save attached file at certain directory Start Download Rom file usbprbs b255 706 fls on Dos Mode and push the enter key Once Download are finished Reset Printer is indicated on LCD window Download finished Power ON OFF Service Manual Samsung Electronics
5. Fuser HEAT LAMP gets heat from AC power The AV power controls the switch with the Triac a semiconductor switch The ON OFF control is operated when the gate of the Triac is turned on off by Phototriac insulting part In other words the AC control part is passive circuit so it turns the heater on off with taking signal from engine control part When the HEATER ON signal is turned on at engine the LED of PC1 Photo Triac takes the voltage and flashes From the flashing light the Triac part light receiving part takes the voltage and the voltage is supplied to the gate of Triac and flows into the Triac As a result the AC current flows in the heat lamp and heat is occurred On the other hand when the signal is off the PC1 is off the voltage is cut off at the gate of Triac the Triac becomes off and then the heat lamp is turned off 1 Triac THY1 feature 16A 600V SWITCHING 2 Phototriac Coupler PC3 Turn On If Current 16mA High Repetive Peak Off State Voltage Min 600V Service Manual ED Samsung Electronics Product spec and feature 2 2 3 S W Structure and Descriptions The purpose of this document is to describe the design specification of the Engine Control F W for the ML 1640 2240 2 2 3 1 Introduction This Engine Control Firmware is a program that controls LBP Engine of the ML 1640 2240 This firmware is executed every 10msec as an interrupt routine of the main system At stand by state this
6. 47 63 Hz Input Current Under 4 0Arms 2 5Arms But the status when lamp is off or rated voltage is inputted outputted Rated Output Power No Items CH1 CH2 Remarks 1 Channel 5V 24 0V 2 Connector pin CON 3 CON 3 5V PIN 11 12 24V PIN 2 3 4 GND PIN 8 9 GND PIN 6 7 3 Rated Output 5V 596 24V 15 4 75 5 25V 20 4 27 6V 4 Max Output current 0 8A 2 0A 5 Peak Loading current 1 0A 2 5A ims 6 RIPPLE NOISE Voltage 100mVp p or less 500mVp p or less 7 Maximum output 4W 24W 8 Peak output 5W 48W 1ms 9 Protecttion for loading shorage and overflowing current Consumption Power No Items CH1 5V CH2 24V System 1 Stand by 10A 0 4A AVG 55 Wh 2 PRINTING 10A 2 0A AVG 250 Wh 3 Sleep Mode 0 8A 0 4A AVG 10 Wh Power Cord Length 1830 50mm Power Cord Switch Use Feature Insulating Resistance 100 yg or more at DC 500V Insulating revisiting pressure Must be no problem within 1 min at 1000Vac 10mA Leaking Current under 3 5mA Running Current under 40A PEAK AT 25 C COLD START under 50A PEAK In other conditions Rising Time within 2Sec Falling Time over 20ms Surge Ring Wave 6KV 500A Normal Common 2 21 Service Manual Samsung Electronics Product spec and feature Environment Condition Operating temperature range 0C 40 C Maintaining temperature range
7. Product spec and feature Item ML 1640 ML 2240 FRU Pickup Roller 50K 50K Pad Unit 50K 50K Transfer Roller 50K 50K Fuser Unit 50K 50K CRU Toner Life Initial 0 7K pages Initial 0 7K pages Sales 1 5K pages ISO IEC 19752 Standard pattern Sales 1 5K pages ISO IEC 19752 Standard pattern Service Manual Samsung Electronics 2 1 3 Model Comparison Table Product spec and feature ML 1640 ML 2240 CPU Jupiter 4e Jupiter 4e same Code Legacy Platform PPM A4 16ppm Letter 17ppm A4 22ppm Letter 23ppm Memory 8MB 8MB Dev Fuse No New Drum Detection By CRUM No New Drum Detection By CRUM same Resolution 300 600dpi 600 1200dpi SPL Driver Unified Ul Unified UI Manual Duplex No Yes Fan No Yes Mech Manual Feeder Guide Yes 2 1 4 Accessory List INA ACCESSORY ML 1640 JC99 02162C JC99 02161C CBF POWER CORD 3903 000042 3903 000042 BAG PE 6902 000809 6902 000809 S W APPLICATION CD JC46 00403A JC46 00402A MANUAL CARD WARRANTY CARD JC68 00690A JC68 00690A LABEL P BLANK 90 25 JC68 01584A JC68 01584A COVER PAPER Service Manual JC63 01891A Samsung Electronics Product spec and feature 2 2 System Overview 2 2 1 System Outline m Paper Path Layout SMPS Toner Cartridge Q Exit Roller Pick Up Roller
8. Red Replaced at DCU Code 68 Exhauseted Transer Roller 50 000 page Exhauseted No Indication Replaced at Exhauseted PickUP Roller 50 000 page Exhauseted No Indication Replaced at Exhauseted 7 5 2 Toner Cartridge Criterion 1 Supplies Criterion Toner Cartridge 1 Cartridge Main Defects White Point Black Point White or Black point on printing image Image contamination Image Fainted Entire Image is fainted and vertical white line emerge Dirty printing image Black Line Vertical black line emerge on printing image 2 Defect Symptoms Symptoms Criterion Remarks White Black Point Clean Up OPC 10 times if disappeared no failure If continuous failure System Setup gt Maintenance gt Clean Drum Image contamination Toner leakage Drity printing image or conteminated reverse side Clean up OPC 10 times and inside of machine with cloth if disappeared no failure Image Fainted After shake cartridge right and left 5 6 times if printing image is not fainted no failure Toner Exhausted Vertical Black Line Vertical thin line emerge if cartridge is scratched Customer fault Service Manual Samsung Electronics 7 6 Model Information Reference information 7 6 1 Understanding for Model Code Model code is inscribed and managed by product standard operation If understand the standard operation It wi
9. O KNOCK UP PLATE DOWN Feed Sensor 9 SMPS Service Manual Fuser LSU OPC Q KNOCK UP PLATE ASS Y HOLDER PAD MAIN PBA D HVPS Samsung Electronics Product spec and feature m Unit Layout Main PBA Service Manual Samsung Electronics Product spec and feature 2 2 1 1 Feeding There are the C path type which loads papers and the manual feeder which supplies paper one by one The cassette has the function pad which separates paper one by one and it has the sensor function to check the existence of the loading paper k Feeding Type MPF Type Feeding Standard Center Loading Feeding Qty Cassette 150 sheets 75g m 20lb paper standard Manual 1 sheet Paper OHP Envelope etc Separating Type Cassette Friction Pad Type Driver Type Driving by Gearing from Main Motor Pick up Roller Driver Solenoid Paper detecting Sensor Photo Sensor 9 Paper Size Sensor None 10 Paper Exit Type Face Down 11 MP Tray MP Cassette Type Cener Loading 0 Oo O1 CO Im 2 2 1 2 Transfer Ass y The transfer roller delivers the toner of the OPC drum to the paper The life span Print over 50 000 sheets in 16 30 2 2 1 3 Driver Ass y It is a power delivery unit by gearing By driving the motor it supplies the power to the feeding unit the fusing unit and the distributing unit Motor drive IC A3977 Itis a power delivery un
10. 20 C 40 Preserving Humidity Condition 1096 90 RH Operating atmospheric pressure range 1atm EMI Requirement CISPR FCC CE MIC Safty Requrement IEC950 UL1950 CSA950 C UL Semko EK CB CCC CCIB GOST EPA Power Save 2 2 2 6 HVPS board High Voltage Power Supply The HVPS board creates the high voltage of THV MHV Supply Dev and supplies it to the developer part for making best condition to display the image The HVPS part takes the 24V and outputs the high voltage for THV MHV BIAS and the outputted high voltage is supplied to the toner OPC cartridge and transfer roller 1 Transfer High Voltage THV Input Voltage 24 V DC 1596 Out Voltage Max 1 3KV 15 Cleaning 200 NQ Out Voltage Trigger 6 5 uA Input Voltage Variation 5 below Variation 21 6V 26 4V Load Variation below Out Voltage Rising Time 100 ms Max Out Voltage Falling Time 100 ms Max Transfer Variation Voltage on Environment Variation 650 V Duty 1096 5KV Duty 90 Control Method on environment THV PWM ACTIVE transfer Active signal of environment sensing voltage is input and get feed back current and recalculate it to resistence Control method on transfer output voltage It is controlled by changing its duty of THVPWM Signal as follows 10 Duty 650V 90 Duty 5KV 5 2 Charge Voltage MHV Input Voltage 24 V DC 15 Out Voltage 1 3KV 3 2 Out Voltage Risi
11. Duplex UART Polling Interrupt based operation support Max 16 byte FIFO to handle SIR Bit Rate Speed 11 Printer video controller for LBP engines PVC 80MHz video rate Hummingbird 2 letter 21 ppm A4 20ppm video data transmitted through LSU Controller 12 Laser Scan Unit LSU Controller Laser Scan Unit LSU Interface for Laser Diode turn on off timing control Sample amp hold period generation Auto Power Control for Laser Diode with PID control method using internal 10 bits DAC LSU clock generation Brushless DC motor control clock generation 13 ADC Interface 4 channels ADC interface for analog devices such as temperature sensor Programmable ADC Clock Cycle Automatic or Manual AD Conversion support 4 Special Function Registers for monitoring the ADC results for 4 channels Service Manual Samsung Electronics Product spec and feature 14 PWM Controller 4 PWM output ports THV BIAS FAN control and AC ELECTRIFICATION 15 Bi polar Stepper Motor controller NOTORC Phase generation for the purpose of paper feeding fixed hardware phase and current table programmable phase and interval time Interrupt based phase change operation 16 Timer 3 Independent Programmable Timers Watch Dog Timer for S W Trap 17 Miscellaneous Mux controlled 24 GPI 28 GPO 8 5 GPIO ports Mutual exclusive GPO GPIO ports control by the port control enable register Programmable Bus M
12. KNOCK_UP ie A 322 Jc66 00720M SHAFT P CORE 3 3 3 JC7201004A PMO DLEKNOCKUPMP 2 32 4 JC740001A MPR PADKNOCKUPMP 1 3 3 34 J061 01259A__ SPRINGETC TORSIONDEVE R 1 5 c960516A ELAUNITDRIVE 1 E 3 5 4 JC61 01153A BRACKET P GEAR S AININ NNNJN P gt gt S S S S gt P S S S S ie zz gt gt mn gt gt gt 5 3 5 2 JC61 01154A BRACKET P MOTOR 1 354 UC3T O0M2A MorORSTEP 17 6 Jc97 02218A_ MEA UNITPLATE KNOCK UP 1 7 Jc70008000 ADJUST CASSEMER 1 8 Juc7o 00488c ADJUST CASSEMTEL 1 3 9 JG66 40003A GEAR PINION mm 330 YOS1 00836A FOOFFRONT 2 FSI 3312 C66 00800 GEAR OPC DR 76 38 29 1 3 wn gt gt nm gt gt i 3 3 e gt gt i ooo gt S gt S gt P gt S S gt 313 VC56 00807A GEAR FUSER DR 68 85 7 314 C66 008084 GEAR FEED DR41 r 3 15 LEVER M ACTUATOR_EMPTY 1 3 16 347 C63 006224 GROUND P OPC fr 348 5 3 19 JC67 00110A CAP M MOTOR S AIN NN gt gt gt gt gt gt gt gt zz gt gt gt gt Service Manual qc Samsung Electronics ExplodedView and Parts list 5 4 Fuser Unit Service Manual ED Samsung Electronics ExplodedView and Parts list Fuser Parts List SA SERVICE AVAILABLE SNA SERVICE not AVA
13. Loading Paper Load the print media you use for the majority of your print jobs in the tray The tray can hold a maximum of 150 sheets of 75 g m 20 Ib bond plain paper 1 Grasp the paper input tray and pull it toward you to 4 Pinch the rear guide to adjust for the paper length open Pinch the rear guide and pull it out to extend and pinch the side guide and slide it to the left flush the tray against the paper 5 If necessary close the paper cover to keep the paper loaded in the tray from dust 2 Prepare a stack of paper for loading by flexing or fanning them back and forth Straighten the edges on a level surface 3 Load paper with the print side facing up Make sure that all four corners are flat in the tray Service Manual Como Samsung Electronics Product spec and feature 2 2 4 7 Installing Printer Software The supplied CD ROM contains Windows printing software Linux printing software on line User s Guide and Acrobat Reader to view the User s Guide 1 If you are printing from Windows You can install the following printer software using the CD ROM Printer driver for Windows Use this driver to take full advantage of your printer s features For details see Software User Guide Status Monitor allows you to see the printing status of the printer For details see Software User Guide 2 If you are printing in Linux Go t
14. Wrong sense time caused by defective feed sensor actuator Replace the defective actuator 4 21 Service Manual Samsung Electronics Alignment amp Troubleshooting 2 JAM 0 Description 1 Paper is not exited from the cassette 2 Jam 0 occurs if the paper feeds into the printer Check and Cause 1 Check the Solenoid by using DCU diagnostic mode 06 Replace the solenoid 2 Check if the pad is loose due Replace the side pad Assembly L to bad sealing of the side pad or R if necessary 3 Check the surface of the Clean with soft cloth dampened roller pickup for foreign matter ae IPA Isopropyl Alcohol or water 4 If the paper feeds into the printer rand Jam 0 occurs perform DCU to check Replace the SMPS HVPS or feed sensor of the Sensor engine board 4 22 Service Manual Samsung Electronics Alignment amp Troubleshooting 3 JAM 1 Description 1 Recording paper is jammed in front of or inside the fuser 2 Recording paper is stuck in the discharge roller and in the fuser just after passing through the Actuator Feed Check and Cause 1 If the recording paper is jammed in front of or inside the fuser Replace the SMPS Perform DCU diagnostic code 08 2 If the recording paper is stuck in the discharge Reassemble the Actuator Feed roller and the fuser just after passing and Spring Actuator if the returning through the A
15. e e LSU Stop On 0 ff Ready Pickup On Pickup Off e e E Paper Empty 9 E Sensor Exit Feed Cover Open HotBurn HotBurn On Cover Clean Print Clean Printing Thv e e Reference adequate high PTL PTL On PTL Off FAN Fan On Fan Off Manual PickUp Manual e e e Sensor Manual Sensor Manual Pickup On M anual Pickup O ff lt DCU Function Table 4 1 5 4 Self Test Button If the Self Test button pressed vertical lines are printed Turn the power on while pressing this button 89 shows in the DCU and the printer is warming up After warming up the printer is in READY Mode and 88 shows in the DCU In this mode without any detection the printer begins printing trial printing and data from the PC It is convenient to use this mode when the engine malfunction is detected in the control board Service Manual ED Samsung Electronics Alignment amp Troubleshooting 4 1 6 Paper Path SMPS Fuser 6 Toner Cartridge LSU Q Exit Roller O OPC Pick Up Roller O KNOCK UP PLATE O KNOCK UP PLATE DOWN ASS Y HOLDER PAD Feed Sensor MAIN PBA 9 SMPS D HVPS 1 After taking order the printer feeds the printing paper from the cassette or manual feeder 2 The fad paper passes the paper feeding sensor Jam O occurs if the sensor is not operated after certain time passes 3 The paper passed the paper feeding s
16. firmware monitors the enable print command from the main system If the enable print command is detected this firmware controls the Engine Mechanism according to the printing process and paper feeding state And with the Sleep command or Wake Up command this firmware controls the Engine state 2 2 3 2 Engine Control F W Overview Engine Control F W is executed every 10msec by timer interrupt of main system And it consists of 3 control modules Engine Main Control Interface Control and Sensing amp Unit Control Module Major operations of the Engine Control F W are following Control the Pick Up Feeding and Discharging of Paper Control the LSU Control the HVPS for the Developer Process Control the Temperature of Fixing unit Controlling selection to here is added Second Cassette Feeder SCF N A Service Manual Quo Samsung Electronics Product spec and feature Architecture of Engine Control F W Power On Main F W of the printer controller ase Initial Engine F W Device Units Interface Control Module Fixing Unit Y s HVPS Engine Main Control Module Fan Unit Y wor Solenold amp Clutch Sensing amp Unit Control Module t Hardware Devices amp Mechanical Device Service Manual CD Samsung Electronics Product spec and feature 2 2 3 3 F W Architecture of Engine Control Firmware The Engine Control Module is executed every 10msec as interrupt job of mai
17. gt gt a gt gt gt gt gt gt o S S S gt lt gt gt HOUSING M PICK_U HOUSING M PICK_UP B RUBBER PICK_UP CAM PICKUP L CAM PICKUP R GEAR TRANSFER BRACKET P BAR_PICK_UP CBF HARNESS MICRO SW HOLDER M CAM Service Manual o a for Samsung Electronics ExplodedView and Parts list 5 6 MP Tray Assembly Only ML 2240 Samsung Electronics 5 13 Service Manual ExplodedView and Parts list MP Tray Parts List SA SERVICE AVAILABLE SNA SERVICE not AVAILABLE Grade Parts Class A B C D E Drawer SEC_CODE DESCRIPTION QTY Service Grade Remark 5 6 0 JC97 02239G IMEA UNIT MP TRAY 5 6 1 JC61 01263F PLATE MP 56 2 JC70 00514E A ADJUST MP L 56 3 JC70 00515E ADJUST MP R 5 6 4 IG66 40003A GEAR PINION 5 6 5 JC63 00711A SHEET MP Service Manual ED Samsung Electronics 6 System Diagram System Diagram Block Connection Diagram_Peacock22 Robin nLED_ERROR o ae nLED READY Zz nKEY_IN nLED_TONER O THV nP_EMPTY N C O MHV BIAS_PWM nFUSER_FAN O SUP MHV_PWM THV_READ C DEV THV PWM nTHV EN O oro s nP_EXIT i 3 3V DGND M zl sn y 24VS2 Ready Error Toner 24VS2 24VS1 HVPS 24VS1 24VS1 24VS2 FUSER_FAN Oo INLET Main S W 24V nP_FEED Fuser_On H Feed_Sensor V lt f
18. heat rollers 4 Close the inner cover and the top cover Printing Then pull the paper gently out resumes automatically 4 1 6 3 In the Paper Feed Area 1 Remove any misfeed paper by pulling it out by the 2 Open and close the front or top cover to resume visible edge from the tray Make sure that all of the printing the document from failed pages paper is properly aligned in the tray Service Manual ED Samsung Electronics Alignment amp Troubleshooting 4 1 6 4 Around the Toner Cartridge 1 Open the front cover 3 Gently pull the paper toward you 2 Pull the toner cartridge out and remove it from the machine 4 Check that there is no other paper in the printer 5 Reinstall the toner cartridge and then close the cover Printing can be resumed Service Manual C Samsung Electronics Alignment amp Troubleshooting 4 1 6 5 Tips for Avoiding Paper Jams By selecting the correct paper types most paper jams can be avoided Ensure that the adjustable guides are positioned correctly Do not overload the tray Do not remove the paper from the tray while printing Flex fan and straighten the paper before loading Do not use creased damp or highly curled paper Do not mix paper types in the input tray Use only recommended print media Ensure that the recommended print side is facing up when loading
19. open and D7 bit of CPU detects the existence of OPC In this case it informs the status to user by turning on the red LED among OP panel LEDs 2 2 2 4 d Solenoid Driving Circuit The solenoid consists of two used for paper pick up and MP signal D4 bit of CPU turns it on off and its driving time is 300ms The diode protects the drive TR from the pulse noise generated by de energizing operation of solenoid Service Manual y Samsung Electronics Product spec and feature 2 2 2 5 SMPS board Switching Module Power Supply The SMPS supplies DC Power to the System It takes 110V 220V and outputs the 5V 24V to supply the power to the main board and other board It is consisted of the AMPS part which supplies the DC power for driving the system and the AC heater control part which supplies the power to fuser SMPS has two output channels Which are 5V and 24V Micro Switch CON Inlet F1 Fuse 250V 5A Rie HT lid Power Switch E 7 wil gt Output Exit Sensor a Pin Signal Oo CIT 24VS2 24V 24VS1 24VS1 5V DGND DGND P_REGI FUSER ON Service Manual ED Samsung Electronics OAN Oa A ON 1 SMPS Specification AC Input Input Rated Voltage AC 220V 240V AC 120V AC 220V 110V version Input Voltage fluctuating range AC 90V 135V AC 180V 270V 220V version Rated Frequency 50 60 Hz Product spec and feature Frequency Fluctuating range
20. paper into the input tray 4 1 6 6 Solving Print Quality Problems Print Quality Checklist Print quality problems can be resolved by following the checklist below Redistribute toner in the toner cartridge Clean the inside of the printer Adjust the print resolution from the printer properties Ensure that the Toner Save mode is off Clear general printing problems Install a new toner cartridge and check the print quality 4 17 Service Manual Samsung Electronics Alignment amp Troubleshooting 4 2 Troubleshooting 4 2 1 Checking Symptoms Before attempting to repair the printer first obtain a detailed description of the problem from the customer No Power Power Module error Main PBA Refer to Chapter 4 1 4 Service Manual c Samsung Electronics Alignment amp Troubleshooting 4 2 1 1 Basic Check List 1 Check the Power Does Warming Up appear on the display gt If not check power cable switch or SMPS gt Does the wall socket work Do the Motors or other components initialize listen for main motor fan and LSU sounds gt If not or there are none of the normal startup sounds check cable switch or SMPS gt Does the wall socket work 2 Check the LED of Panel Is there On Line LED ON gt If not check power cable switch SMPS or Main board gt Does the wall socket work Is the abnormal Lamp gt Check the
21. the page is stained at 47 mm intervals Digital Printer Digital Printer Digital Printer Check and Cause Perform the OPC Cleaning Mode 1 Transfer roller is contaminated Print 2 or 3 times Run Self Test to remove the contamination of the transfer roller 1 Replace the transfer roller if contaminated severely 2 Pressure roller is contaminated 2 Disassemble the fuser and clean the H R Heat Roller and P R Pressure roller And check the area between H R and Thermistor If contaminated clean the area not to be deformed Service Manual Eo Samsung Electronics Alignment amp Troubleshooting 15 Blank Page Print out 1 Description Blank page is printed _ Check and Cause Bad ground contacts in OPC and or developer Remove contamination of the terminals of the developer and the unit 4 56 Service Manual Samsung Electronics Alignment amp Troubleshooting 16 Blank Page Print out 2 Description 1 Blank page is printed 2 One or several blank pages are printed 3 When the printer turns on several blank pages print Check and Cause 1 Bad ground contacts in OPC and or developer Remove contamination of the terminals of the developer 1 Perform the engine self test using DCU to check if the Solenoid is normal refer to code 06 2 Abnormal solenoid 2 If not solved by the abov
22. use an exact voltage and wall socket If not a fire or an electric leakage can be caused 2 Use authorized power cord Do use the power cord supplied with PRINTER A fire can happen when over cur rent flows in the power cord 3 Do not insert many cords in an outlet A fire can be occurred due to flow over current in an outlet 4 Do not put water or extraneous matter in the PRINTER Please do not put water other liquid pin clip etc It can cause a fire electric shock or malfunction If this occurs turn off the power and remove the power plug from outlet immediately b Do not touch the power plug with wet hand When servicing remove the power plug from outlet Do not insert or take off it with wet hand Electric shock can be occurr 6 Caution when inserting or taking off the power plug The power plug has to be inserted completely If not a fire can be caused due to poor contact When taking off the power plug grip the plug and take it off If grip the line and pull over it could be damaged A fire or electric shock could happen 7 Management of power cord Do not bend twist or bind it and place other materials on it Do not fix with sta ples If the power cord gets damaged a fire or electric shock can happen A damaged power cord must be replaced immediately Do not repair the damaged part and reuse it A repaired part with plastic tape can be cause a fire or electric shock Do not spread chemicals on the power cord Do not s
23. your body by touching a known earth ground Alternatively employ a commercially avail able wrist strap device which should be removed for your personal safety reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ESDs place the assembly on a conductive surface such as aluminum or copper foil or conductive foam to prevent electrostatic charge buildup in the vicinity of the assembly Use only a grounded tip soldering iron to solder or desolder ESDs 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 Do not use Freon propelled chemicals When sprayed these can generate electrical charges sufficient to dam age ESDs Do not remove a replacement ESD from its protective packaging until immediately before installing it Most replacement ESDs are packaged with all leads shorted together by conductive foam aluminum foil or a compa rable conductive material Immediately before removing the protective shorting material from the leads of a replacement ESD touch the protective material to the chassis or circuit assembly into which the device will be installed Maintain continuous electrical contact between the ESD and the assembly into which it will be installed until completely plugged or soldered into the circuit Minimize bodily motions when handlin
24. 2 Be sure to remove the toner cartridge before you dis assemble parts 3 Unplug the power cord 4 Use a flat and clean surface 5 Replace only with authorized components 6 Do not force plastic material components 7 Make sure all components are in their proper position Service Manual E Samsung Electronics Disassembly and Reassembly 3 2 Disassembly and Reassembl 3 2 1 Front Cover 1 Open the front cover Separate the front cover from 3 If necessary remove the extension tray by pulling to the lock the frame by pulling the left bottom the direction of arrow 2 If necessary remove the cassette cover as the same 4 Take out the MP tray after remove the toner cartridge way Service Manual Samsung Electronics Disassembly and Reassembly 3 2 2 Main Cover 1 Remove the SMPS cover after remove the 2 screws 2 Release the SMPS cover after unplug the 1 connector And remove the 2 screws from the rear bottom of from Main PBA SET 3 Lift the Main Cover after remove the 2 screw Service Manual Samsung Electronics Disassembly and Reassembly 3 2 3 Fuser unit 2 Release the Fuser unit after remove the 4 screws Service Manual qe Samsung Electronics Disassembly and Reassembly 3 2 4 SMPS board Before Disassembling Separate the SMPS cover Refer to 3 3 Remove the SMPS board after remove the 7 screws and 2 harn
25. 4KByte Instruction cache 4KByte Data cache Single memory bus architecture 3 Built in Flash Memory 4MBits 128Kx32bits Serial programming mode using flash programmer tool Internally flash memory read write operation support Programmable access timing control 4 32MB Special function Register Area 5 Directly connected to 3 external lO banks IOC 32 MB size in each IO bank Programmable setup access hold timing Programmable recovery time for slow devices Allows to access peripheral devices such as GPIO control logic 6 Directly connected to 1 external ROM bank ROMC 32 MB size for one ROM bank One external flash memory attachable Service Manual ED Samsung Electronics Product spec and feature 7 Directly connected to two SDRAM banks SDRAMC Extensible architecture Two external SDRAM attachable SDRAM controller supports PC 100 and PC 133 SDRAM running at 75MHz Up to 32MB per bank Support for SDRAM configurations including programmable column address Programmable refresh interval 8 Interrupt Controller INTC FIQ or IRQ mode operation selectable Programmable Interrupt Enable Disable 9 USB interface Version 1 1 Four 128x8 FIFOs for Data transmission Interrupt based input output interface no DMA based interface support USB wrapper for AHB interface AHB Bus interface 10 Serial port interface UART Programmable Baud Rate 2 channel Independent Full
26. 9 24VS1 VDO VDO DAC OUT LSU CLK nLREADY N C 5VS DGND LD ENABLE LSU_SH nLED_ERROR nLED_READY nKEY_IN nLED_TONER 24VS2 N C 24VS1 24VS1 5V DGND DGND nP_FEED Fuser_On DC Q 3 3V Reg a z GND 24VS2 nHSYNC 5VS DGND VDO LSU_SH VDO nP_EMPTY N C e 1 8V Reg LSU CLK nLREADY nPMOTOR DAC OUT LD ENABLE BIAS PWM nFUSER FAN MHV PWM THV READ THV PWM nTHV EN 5V Jupiter4e 12MHz SDRAM 8MB nP_EXIT 3 3V DGND Robin Only Peacock22 Only 24VS2 nNEW_DEV GND GND GND D VBUS GND nCRU_DET USB DEVE SMPS_FAN THERMISTOR DGND N C CY25811 3 3V DEV_DATA DEV_CLK DGND DGND DCU_CLK DCU_DATA THERMISTOR_IN N C 5V CRUM DCU PICK_UP_CLT 24VS2 PickUp_Sol BLDC_DIR BLDC_CLK BLDC_READY BLDC_EN DGND BLDC_BREAK DGND DGND 24VS2 24VS2 MAIN MOTOR Robin Only 5V TONER_TX nTONER_RX DGND nCRU_DET N C GND 3 3V HYPER TXD HYPER RXD DGND TONER TX RX O o MICRO S W I ajojn Peacock Hardware Team Digital Priting Div Samsung Electronics Jan 21 2008 Service Manual Samsung Electronics Reference information 7 Reference Information This chapter contains the t
27. Alignment amp Troubleshooting 4 1 2 Control Panel 4 1 2 1 OP Panel Status LED Shows the status of your machine Toner LED Shows the status of the toner cartridge Cancel Stops an operation at any time and there are more functions Service Manual ee Samsung Electronics Alignment amp Troubleshooting 4 1 2 2 Understanding The Control Panel The color of the status and toner LED indicates the machine s current status On Line Error LED STATUS DESCRIPTION Green On The machine is warming up or ready to receive the data Blinking The machine is printing data Red On The machine is experiencing an error such as open cover paper empty installer error or invalid error The machine is experiencing a service required error such as LSU error or fuser error Orange On The machine is experiencing an error such as jammed paper Toner LED Red On The toner is exhausted machine will stop printing Replace the toner cartridge Blinking The toner is low replace the toner soon Rapidly blinking The toner is empty replace the toner Service Manual qe Samsung Electronics LED on error status Alignment amp Troubleshooting Machine Status LED LED Display pbk Paper Empty On Line Error LED Red LED On O Paper JamO On Line Error LED Orange LED On O Paper Jam1 On Line Error LED Orange LED On O Paper Jam2 On Line Er
28. DRAM SDRAM Expand Memory Slot N A N A Service Manual Samsung Electronics 2 1 2 3 Paper Handling Product spec and feature liem ML 1640 ML 2240 Capacity 20 Ibs Main Tray 150sheets 150sheets Bypass N A N A Optional Cassette N A N A Output Capacity Face Down 50Sheets 20lb Face Down 100Sheets 20lb Output Control Face down Face down Paper Size Auto Feeding A4 Letter Legal Oficio Folio Executive A4 Letter Legal Oficio Folio Executive JIS B5 ISO B5 A5 A6 JIS B5 ISO B5 A5 A6 Envelop 10 DL C5 C6 73 4 Envelop 10 DL C5 C6 73 4 Paper Weight Auto Feeding 16 24 Ib 16 24 Ib Manual Feeding 24 43 lb 24 43 Ib Paper Path Standard output Bottom to Upper Front FIFO Bottom to Upper Front FIFO Straight Through N A N A Paper Size Max 216 x 356mm 8 5 x14 216 x 356mm 8 5 x14 Min 76 x 127mm 3 x5 76 x 127mm 3 x5 Printing Skew Top 2 51177 8mm 2 5477 8mm Side 3 5 241 3mm 3 5 241 3mm 2 1 2 4 Software item ML 1640 ML 2240 Compatibility DOS No No Win 3 x No No Win 95 Yes except Status Monitor Yes except Status Monitor Win 98 Yes Yes Win ME Yes Yes Win NT 4 0 Yes Yes Win 2000 Yes Yes Win XP Yes Yes Mac No Yes Linux No Yes WHQL Printer Yes for 2000 amp XP Yes for 2000 amp XP Driver Printer GDI GDI TWAIN No No WIA No No RCP No None Service Manual Samsung Electronics 2 1 2 5 Consumables
29. ILABLE Grade Parts Class A B C D E Drawer SEC_CODE DESCRIPTION QTY Service Grade Remark 54 0 JC96 05121A ELAHOU FUSER 1640 110V 54 0 JC96 05122A ELA HOU FUSER ML 1640 X 5 4 0 JC96 05124A ELAHOU FUSER 2240 110V 54 0 JC96 05125A ELAHOU FUSER 2240 220V 5 4 6 6107 001168 SPRING CS SCE BUSH PRESSURE R 5 4 8 JC61 00595A GUIDE M INPUT 549 JC66 00600A ROLLER PRESSURE gt N 5 4 10 JC66 00601B ROLLER HEAT Lin 99 99 qodldo wv o o o oo ooo ovoioovoioo lo vo 9 ve o9 veo 99 v von Z zzzzzz 2 5 i 2 5 4 11 JC66 00564A GEAR FUSER Z37 54 14 54 14 54 14 54 14 1 5 4 15 JC66 00824A ROLLER M EXIT MAIN 3 5 4 16 JC66 00830A ROLLER M EXIT FR 3 5 4 17 6107 001163 SPRING CS 3 54 18 5 4 19 4712 001032 THERMOSTAT 1 5 4 20 JC39 00404A CBF HARNESS FUSER JOINT 1 5 4 21 JC39 00403B CBF HARNESS FUSER 220V 1 5 4 22 JC61 00064A SPRING ETC CLAW 5 4 23 JC61 02580A GUIDE CLAW 5 4 24 JC66 00801A GEAR EXIT_DR38 25 5 4 25 6031 001051 WASHER PLAIN 5 4 26 JC63 00637A COVER M FUSER DUMMY 5 4 27 JC63 00639A COVER M LAMP L 5 4 28 JC63 00638A COVER M LAMP R 5 4 29 6044 000001 RING CS 5 4 30 JC66 00826A ROLLER EXIT F DOWN 1 1 5 4 31 JC67 00085A CAP M THERMO _ fos 1640 220V 1640 110V 2240 110V 2240 220V a AIA Service Manual ED Samsung Electronics
30. LASER PRINTER ML 1640 ML 2240 Model ML 1645 XEV Basic Model ML 1640 SER VICE Manual EE LASER PRINTER The keynote of Product Speed ML 1640 16 ppm A4 17 ppm Ltr ML 2240 22ppm A4 23 ppm Ltr Emulation GDI Processor 150 Mhz Jupiterde CPU Memory 8 MB Toner cartridge Initial 0 7K Sales 1 5K MP tray Only ML 2240 Interface Full Speed USB 2 0 Machine life 50K pages ELECTRONICS GSPN Global Service Partner Network North America service samsungportal com Latin America latin samsungportal com CIS cis samsungportal com Europe europe samsungportal com China china samsungportal com Samsung Electronics Co Ltd January 2008 Asia asia samsungportal com Printed in Korea Mideast amp Africa mea samsungportal com VERSION NO 1 00 CODE 1645 DOOXEV Precautions 1 1 Safety Warning 12 Caution for Safety gt rrr rn 1 1 3 ESD Precautions ccr n Ie Product spec and feature 2 1 Product Specifications 2 1 1 Product Overview c RE 2 1 2 Specifications 2 1 3 Model Comparison Table 2 1 4 Accessory List o o o n nm 2 2 System Overview zE 2 2 1 System Outline 2 2 2 H W Structure and bea ies 2 2 3 S W Structure and Descriptions 2 2 4 Initial Product Installation Disassembly and Reassembly 3 1 General Precautions on Disassembly 3 2 Disassembly and Reassembly 3 2 1 Front Cov
31. NIN NIN ie zZ gt 5 1 3 4 JC63 00628F TRAY EXTENSION LARGE eres eea TRAY EXTENSION SMALL Dn x w wn wn 9 gt gt gt gt gt gt gt gt g Mm gt ie gt 1640 1645 5 1 5 JC63 01892B COVER SMPS 5 1 5 1 JC31 00092A FAN 5 1 6 JC96 05045A CARTRIDGE TONER AJN NN ie zZ gt 1640 2240 Service Manual eq Samsung Electronics ExplodedView and Parts list Main Parts List SA SERVICE AVAILABLE SNA SERVICE not AVAILABLE Grade Parts Class A B C D E Drawer SEC_CODE DESCRIPTION QTY Service Grade Remark 517 ML 16400N EJ a ae AA AAA NEN EA AO Eee 2240 5 1 12 JC39 00937A HARNESS MOTOR 5 1 12 JC39 00932A HARNESS MOTOR 5 1 13 JC39 00400A CBF HARNESS HVPS 5 1 14 JC39 00402A CBF HARNESS SMPS Eras ES 672A ELAUNIT TERMINAL TR L 5 1 15 1 JC61 00031A SPRING ETC HV LARGE 5 1 15 2 JC70 40912A ICT SHAFT HV LARGE 5 1 16 JC44 00167A HVPS 5 1 17 JC63 00631A GROUND P HVPS 5 1 18 3903 000042 CBF POWER CORD 5 1 18 3903 000085 CBF POWER CORD 5 1 19 3722 002303 JACK USB 5 1 20 JC97 02239G IMEA UNIT MP TRAY 5 1 21 JC31 00085A FAN DC pm ES n gt Nm Nm Z S gt 220V 110V 2240 p EA 1 al c nv L qo gt gt S gt gt FZ gt gt Service Manual qq Samsung Electronics ExplodedView and Parts list 5 2 Frame Assembly ML 2240 UE ell
32. PS B Check the fuses in the SMPS F1 2 Check the Installation Environment 1 Ensure the installation surface is flat level and free from vibration If necessary move the printer 2 Ensure that the temperature and humidity of the surroundings are within specification If necessary move the printer 3 Ensure that the printer is position away from any air conditioning or other heating or cooling equipment Also ensure that is not positioned in a direct draft from any air conditioning fan or open window If necessary move the printer 4 Ensure the printer is not positioned in direct sunlight If it is unavoidable use a curtain to shade the printer 5 Ensure the printer is installed in a clean dust free environment Move the printer to clean area if necessary 6 Some industrial or cleaning processes give of fumes which can affect the printer Move the printer away from this type of air pollution 3 Check paper type 1 Use only paper which is of a suitable quality weight and size See the user guide 4 Check the overall condition of the printer 1 Is the printer properly maintained Clean the Paper Transport Passages Any rollers with dirt surfaces should be cleaned or replaced Service Manual e Samsung Electronics Alignment amp Troubleshooting 4 2 2 Bad discharge 1 Wrong Print Position Description Printing begins at wrong position on the paper Check and Cause
33. The abnormal voltage and Check the approved voltage of the bad contact of the terminal of the supply roller and contact of the supply roller terminal and adjust if necessary Service Manual eu Samsung Electronics Alignment amp Troubleshooting 12 Ghost 4 Description Ghost occurs at 47 5mm or 63 9mm intervals Digital Printer Digital Printer uug t9 Jo g 7y Digital Printer Check and Cause Disassemble the fuser and The temperature of the fuser remove the contaminated toner is maintained high particles on the roller and clean the foreign matter between Thermistor and Heat roller Caution can be deformed 4 53 Service Manual Samsung Electronics Alignment amp Troubleshooting 13 Stains on the Face of Page e Description The background on the face of the printed page is stained Digital Printer Digital Printer Digital Printer Digital Printer Digital Priniter 1 Toner leakage due to improperly sealed developer Replace the developer cartridge If the transfer roller is contaminated 2 If the transfer roller is run PC Cleaning Mode Print 2 or 3 contaminated stains on the face of times l page will occur And perform Self Test 2 or 3 times to remove contamination Service Manual Ea Samsung Electronics Alignment amp Troubleshooting 14 Stains on Back of Page e Description The back of
34. age Reference on THV 1300 voltage output by MHV terminal Caution High voltage probe should be used 04 DEV supply High Voltage DEV Supply High Voltage Test The left one of the three LEDs in the self test panel is on when DEV high voltage Supply high voltage output by each HV terminal Press the Up button to switch the voltage The middle and right one of the three LEDs are on and 350 voltage output by DEV HV terminal Caution High voltage probe should be used 05 LSU Operating System The scanning motor of LSU is in operation the right LED of the three buttons on Press the Up button to Check LD LD is functioning and the middle button is on If the LD is normal all LEDs are on 06 Pickup clutch on The Solenoid in the printer is in operation To stop the operation Press the button shift and Enter together Service Manual eu Samsung Electronics Alignment amp Troubleshooting Code Description 07 Paper Empty Sensor Test If activate the Actuator of the PEMPTY Sensor the left and right of the three LEDs are on Paper Empty Sensor ON OFF 1st LED ON OFF 08 Feed amp Exit Sensor Test Test the Feed sensor and Discharge sensor in the same way as 07 Feed Sensor ON OFF 2nd LED ON OFF Exit Sensor ON OFF 3rd LED ON OFF 09 Cover Open Sensor Test Test the Cover Open Sensor in th same way as code 07 Cover Open Sensor ON OFF1st LED ON OFF 10 Fuser Test If the Enter butto
35. ain program adjust the setup the program requires Sometimes the printout is normal within the Windows basic programs but it s not working in a particular program In such case install the new driver again If not working in the Windows basic program Check the setup of the port of CMOS is on ECP And check the address of IRQ 7 and 378 3 Printing is not working in the Windows 4 Check if the printer cable is directly connected to peripheral devices If the scanner needs to be connected to the printer first the remove the scanner from the PC to see if the printer is properly working alone 4 37 Service Manual Samsung Electronics Alignment amp Troubleshooting 2 The printer is not working 2 After receiving the printing order no response at all or the low speed of printing occurs due to wrong setup of the environment rather than malfunction of the printer itself Check and Cause Description Not working with the message insufficient printer memory means hard disk space problem rather than the RAM problem In this case provide more space for the hard disk Secure more space using the disk utilities program 1 Secure more space of the hard disk 2 Printing error occurs even The connection of the cable and printer port is not if there is enough space in proper Check if the connection is properly done the hard disk and if the parallel port in CMOS is rightly set up As a prin
36. aper No paper in the paper cassette 71 Paper Jam 0 The front part of paper is jammed between pickup unit and Feed sensor 72 Paper Jam 1 The front part of paper is jammed between the Discharge sensor and Feed sensor 73 Paper Jam 2 The front part of paper is jammed just after passing through the discharge sensor 76 Out Bin Full The Out bin is filled with paper 95 LSU Not Ready LSU Scanner Motor not ready or Hsync signal not output Service Manual D Samsung Electronics Alignment amp Troubleshooting 4 1 5 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 If 00 shows in the DCU press the button Up or Shift to select the self test and press the button of Enter to operate To stop press the button of shift and Enter together Code Description 00 Main Motor Operating System Only the main motor is in operation 01 Main High Voltage On THV 1400 voltage output by MHV terminal Caution High voltage probe should be used 02 Transfer High Voltage On THV 1000 voltage output by MHV terminal Caution High voltage probe should be used 03 Transfer High Volt
37. arts take off a plug 8 Take off printer cables and power cord connected to printer 4 Do use formal parts and same standardized goods when replacing parts Must check the product name part cord rated voltage rated current operating temperature etc b Do not give an over force when release or tighten up the plastic parts 6 Be careful not to drop the small parts such as screws in the printer 7 Be careful not to change the location of small parts such as screws when assembling and disassembling 8 Do remove dust or foreign matters completely to prevent fire of tracking short or etc 9 After finished repair check the assembling state whether it is same as before the repair or not Service Manual Qe Samsung Electronics Precautions 1 3 ESD Precautions Certain semiconductor devices can be easily damaged by static electricity Such components are commonly called Electrostatically Sensitive ES Devices or ESDs Examples of typical ESDs are integrated circuits some field effect transistors and semiconductor chip components The techniques outlined below should be followed to help reduce the incidence of component damage caused by static electricity Caution gt gt Be sure no power is applied to the chassis or circuit and observe all other safety precautions _ Immediately before handling a semiconductor component or semiconductor equipped assembly drain off any electrostatic charge on
38. aster Priority Project code added Service Manual ED Samsung Electronics Product spec and feature 2 2 2 4 Sensor Controller 2 2 2 4 a Paper Feeding Width When a paper passes an actuator of a feed sensor unit after feeding a paper into a set it detects a signal of the photo interrupter and informs the paper feeding status to CPU After sensing the signal and certain time later it strews an image data Related in Paper Front Edge Adjustment If it could not detect the feed sensor within 1 second after feeding a paper a paper jamO CPU _ occurs 2 2 2 4 b Paper Empty Sensing The paper empty is detected by the empty sensor mounted to an engine board and the actuator mounted to a frame Paper senses the on off time of the empty sensor by using CPU and informs the normal operation status and the jam occurrence status to CPU 2 2 2 4 c Jam Cover Cover Open Sensing ML 1640 2240 uses two M S one senses the cover open and the other senses the jam cover open The cover open sensor is located on the left bottom of HVPS When the front cover is open 24V supplied to each unit DC fan Solenoid Main Motor Polygon Motor Unit of LSU in Fusing Unit and HVPS is interrupted The jam cover open sensor is located on the centeral top of HVPS When the jam cover is open 24V supplied to each unit DC fan Solenoid Main Motor Polygon Motor Unit of LSU in Fusing Unit and HVPS is interrupted DO bit of CPU detects the jam cover open cover
39. autions The cautions below are items needed to keep in mind when maintaining and servicing Please read carefully and keep the contents in mind to prevent accidents while servicing and to prevent the machine from getting damaged 1 1 Safety Warning 1 Request service by qualified service person Service for this machine must be performed by a Qualified service person It is dangerous if unqualified ser vice personnel or users try to fix the machine 2 Do not rebuild Do not attach or change parts discretionary Do not dissemble fix of rebuilt it If so printer will abnormally work and electric shock or fire may occur 8 Laser Safety Statement The Printer is certified in the U S to conform to the requirements of DHHS 21 CFR chapter 1 Subchapter J for Class 1 1 laser products and elsewhere is certified as a Class laser product conforming to the requirements of IEC 825 Class 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 level during normal operation user maintenance or prescribed service condition Warning gt gt Never operate or service the printer with the protective cover removed from Laser Scanner assembly The reflected beam although invisible can damage your eyes When using this product these basic safety precautions should always be followed to reduce risk of fire electric shock and injury to
40. bleshooting 4 1 5 How to use DCU 4 1 5 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 CN1 ML 1640 2240 of the Main control board ML SERIES DIAGNOSTIC CONTROL UNIT DEV 300 LSU READY PAPER EMPTY DEV 350 LSU MT 8 LD PAPER WIDTH EXIT SENSOR DEV 350 LSU MOTOR NEW CRU FEED SENSOR STATUS DIAGNOSTIC COVER OPEN COER HEATING PRINTING TEMP READY HEAT ON OFF DIAGNOSTIC CODE MAIN MOTOR OPERATING SYSTEM MAIN HIGH VOLTAGE ON TRNSFER HIGH VOLTAGE ON THV REFERANCE VOLTAGE DEV SUPPLY HIGH VOLTAGE ON PTL ON LSU OPERATING SYSTEM PICKUP CLUTCH ON PEEMPTY PWITH NEW CRU TEST FEED amp EXIT SENSOR TEST COVER OPEN SENSOR TEST FUSER TEST HOT BURN TEST CLEAN MODE PRINT THV TRIGGER ALL HV amp FAN ON THV REFERENCE ON STATUS CODE WARM UP READY REGAL READY LETTER READY A4 READY EXECUTIVE READY B5 PRINT START FEED SENSOR ON FEED SENSOR OFF PAPER OUT SLEEP MODE DIAGNOSTIC MODE UP ERROR STATUS CODE 601 OPEN FUSER ERROR 621 LOW TEMPERATURE ERROR 68 OVER HEATING ERROR 641 COVER OPEN ERROR 70 1 NO PAPERR 711 PAPER JAM O 72 PAPER JAM 1 73 PAPER JAM 2 95 LSU NOT READY SHIFT EJ O TO ENTER DIAGNOSTIC MODE PUSH THREE BUTTONS SIMUL ANEOUSL AND TURN THE PRINTER POWER ON EJ
41. ctuator Feed Feed is bad Actuator may be defective 4 23 Service Manual Samsung Electronics Alignment amp Troubleshooting 4 JAM 2 Description 1 Recording paper is jammed in front of or inside the fuser 2 Recording paper is stuck in the discharge roller and in the fuser just after passing through the Actuator Feed Check and Cause If the paper is rolled in the Fuser Roller This occurs when a Guide claw is If the paper is stuck in the fuser broken away or transformed disassemble the fuser and remove It occurs when the Spring of a Guide claw the jammed paper and clean the is broken away or transformed surface of the pressure roller with It occurs when the Heat Roller or dry gauze Pressure Roller is seriously contaminated ith the toner Remove the jammed paper after disassembling the fuser Clean the surface of the pressure roller with dry gauze Remove the toner particles 3 Paper is accordion in the fuser stained on the rib Check the assemblage and performance of the exit 4 24 Service Manual Samsung Electronics Alignment amp Troubleshooting 5 Multi Feeding Description Multiple sheets of paper are fed at once Check and Cause 1 Solenoid malfunction the solenoid does not work properly Replace the solenoid if necessary Perform DCU Diagnostic Code 06 2 Pad Friction is Clean the pad frictio
42. dard test patterns used in the factory The life of the toner cartridge developer cartridge and printing speed are measured with the pattern shown below 5 The A4 ISO 19752 standard pattern samples are reproduced reduced to 70 of the actual A4 size A4 ISO 19752 Standard Patterns LMNOPQRSTUVWX I UKLMNOPQRSTUVWXYZ0123456789ABCDEFGHINK ABCDEFG Stephen J Singel Labanda Sinpat Abarress Tendar BSF L S URANGLE Funtres Solber Netener 23 January 2004 Jonathan Q Maderia Inpert Mampem Abaress 2343 Stantin Dawer Lank Benhibe SDF Mr Maderia Nam liber tempor cum soluta nobis eleifend ption cogue nihil consequat velillum Dolore eu zril feugiat nulla acilisis at vero eros accumsan et iusto odio dignis sim qui blandit praesent lutatum ril lobortis nis ut aliquip exea commodo consequat Duis autem vel eum ireurgE dolor in hendreritin vulputate velit esse molestie tincidunt ut laoreet dolore magna aliquam erat A volutpat Ut wisi enim ad minim viniam quis nostrud exerci tation ullam corpersus cipit lotis nisl ut aliquip ex ea commodo consequat Lorem ipsum dolor sit 43dogvesZ9sve LOZAXMAQn LSHOdONWDICIHO43008 Amet consectetuer adipiscing elit sud diam nonummy nibh veniam recneps adipiscing elit sed diam nonummy nibtil laoreet dolore mag aliam erat volutpat Ut wisi enim minim veniam quisient nostrud Sol uta nobis eleifendoptn cogue nihil imerdiet domg id quod mzim plera facer posim aum Lorem ipsm dolo
43. dge replace the developer and try to print out 3 The life of developer is expired Replace the engine board if not solved by the above directions 1 2 4 Transfer roller lifetime If not solved by the direction 3 50 000 sheets has expired check the transfer roller lifetime and replace it 5 Abnormal low temperature Wait about 1 hour after power on below 10 C before using printer 4 50 Samsung Electronics Alignment amp Troubleshooting 10 Ghost 2 Description Ghost occurs at 75 5 mm intervals of the OPC drum in the whole printing When printing on card stock or transparencies using manual feeder Digital Printer Digital Printer Digital Printer uiu Check and Cause When printing on card stock Select Thick Mode on paper type thicker than normal paper or menu from the software application transparencies such as OHP higher and after using returning to the transfer voltage is original mode is recommended required Service Manual E Samsung Electronics Alignment amp Troubleshooting 11 Ghost 3 e Description White ghost occurs in the black image printing at 47 5mm intervals Digital Printer uu Ly Digital Printer Digital Printer Check and Cause Occur in the developer cartridge 1 The life of the developer replace the developer and try to may be expired print out 2
44. ding or deformation of the actuator of the paper sensor Replace the defective actuator 2 The function of the engine board is defective Perform DCU mode Replace the engine board Perform DCU diagnostic 4 30 Service Manual Samsung Electronics Alignment amp Troubleshooting 4 Paper Empty without indication Description The paper lamp on the operator panel does not come on when the paper cassette is empty Check and Cause 1 Bending or deformation of the actuator of the paper sensor Replace the defective actuator 2 The function of the engine board is defective Perform DCU mode Replace the engine board Perform DCU diagnostic 4 31 Service Manual Samsung Electronics Alignment amp Troubleshooting 5 Cover Open Description The ERROR lamp is on even when the print cover is closed Check and Cause 1 The Hook Lever in the top cover may be defective Replace the hook lever if defective Check the connector Engine B d HVPS and circuit of 1 Check the insertion of the Cover the cover switch department in the Main Open S W Connect Control board Perform DCU mode 2 Replace the Main Control board If Error state 64 occurs Check or Cover Open S W 4 32 Service Manual Samsung Electronics Alignment amp Troubleshooting 6 No lamp on when the cover is open Description The ERROR lamp does not come on even when t
45. e directions 1 2 Replace the engine board 3 Turn the power off delete the data of PC and try printing again 4 57 Service Manual Samsung Electronics ExplodedView and Parts list 5 Exploded Views and Parts List 5 1 Main Assembly sk erent cud UM ILE ee aan as 5 2 5 205 ErmeAssembly ML 2240 M E 01 0 0010501 5 5 5 3 Frame Assembly ML 1640 s s s soa a s son e moe rr rr rcr rr 5 7 54 Fuser Unit cae ane ee ann eater anal HEURE A I UNE EISE E RACE aaa e 5 9 55 PaperPath Unit 10 c vc 5 11 5 6 MP Tray Assembly Only ML 2240 t n ee ee nm 5 13 LASER PRINTER The keynote of Product Speed ML 1640 16 ppm A4 17 ppm Ltr ML 2240 22ppm A4 23 ppm Ltr Emulation GDI Processor 150 Mhz Jupiter4e CPU Memory 8 MB Toner cartridge Initial 0 7K Sales 1 5K MP tray Only ML 2240 Interface Full Speed USB 2 0 Machine life 50K pages Service Manual qu Samsung Electronics ExplodedView and Parts list 5 1 Main Assembly Samsung Electronics Service Manual ExplodedView and Parts list Main Parts List SA SERVICE AVAILABLE SNA SERVICE not AVAILABLE Grade Parts Class A B C D E Drawer SEC CODE DESCRIPTION QTY Service Grade Remark 5 1 0 5123 5127 5 1 3 2 JC63 01885A COVER CASSETTE N N N N ie Z gt ie eo eo AI
46. e OPC unit has OPC drum and charging roller and the developer unit has toner toner cartridge supply roller developing roller and blade Doctor blade Developing Method Non magnetic 1 element contacting method Toner Non magnetic 1 element shatter type toner The life span of toner Initial 700 sheets Sales 1500 sheets ISO 19752 Pattern A4 standard Toner remaining amount detecting sensor None OPC Cleaning Collect the toner by using Cleaning Blade Management of disusable toner Collect the toner by waste bottle OPC Drum protecting Shutter None Classifying device for toner cartridge ID is classified by CRUM Toner sales LUZ Max 1 4KV LLLL F Zener Diode Q Cleaning Blade 100V 4 Cleaning Roller Charging Roller LSU 0 20mW Vo 720V Vi 150V Transfer Roller LLLL Max 350V Max 5KV O Developing Roller Doctor Blade AG Supply Roller Max 550V AX Service Manual Samsung Electronics Product spec and feature 2 2 2 H W Structure and Descriptions 2 2 2 1 H W Overview ML 1640 2240 is roughly made up Main Control part and SMPS HVPS part Main Controller uses Jupiter4E for its ASIC which is on chip micro controller and developed for Low end Laser Beam Printer Jupter4E provides the integrated printing functions such as Printer video controller Laser Scan Unit controller PWM controller and Bi polar Stepper Motor Contro
47. engine mode And the engine checks the LSU error in itself If the error doesn t happen the printing job will be proceeding 2 2 3 4 Engine Interface Module Design Engine Interface Module communicates with the main system in order to receive the command from main system and to transmit the present engine status for the requested status There are two sub functions One is a function to receive the command from the main system The other is a function that informs the main system of the current engine status for the requested item 2 2 3 5 Engine Sensing amp Unit Control Module Design Engine Sensing amp Unit Control Module consists of 4 sub functions The first function is an ADC function that reads the ADC values of the temperature of the fixing unit The second one is a fixing unit control function This function regulates the temperature of the fixing unit within a fixed range to be set by the paper type and the number of pages to print out The third one is a fan control function that controls the fan unit And the last one sets the flag that describes the present status of each sensor Service Manual Samsung Electronics Product spec and feature FAN Architecture Service Manual Samsung Electronics Product spec and feature 2 2 4 Initial Product Installation 2 2 4 1 Accessory List Remove the printer and all accessories from the packing carton Make sure that the printer has been packed with the fol
48. ensor moves to the paper exit sensor via printing process Jam 1 occurs if the sensor is not operated after certain time passes 4 The paper passed the paper exit sensor moves out from the set Jam 2 occurs sometime after if the tailing edge of the paper is not coming out from the set after the leading edge of paper passes the paper exit sensor lt Jam0 gt lt Jaml gt lt Jam2 gt 4 13 Service Manual Samsung Electronics Alignment amp Troubleshooting 4 1 6 1 Clearing Paper Jams Occasionally paper can be jammed during a print job Some of causes include The tray is overfilled The front cover has been opened during a print job Paper that does not meet paper specifications has been used Paper that is outside of the supported size range has been If a paper jam occurs the On Line Error LED on the control panel lights orange Find and remove the jammed paper If it is invisible look inside the printer 4 1 6 2 In the Paper Exit Area 1 If the paper jams as it exits to the output tray anda 2 Open the top cover and the inner cover long portion of the paper is visible pull the paper straight out When you pull the jammed paper if there is resistance and the paper does not move immediately stop pulling Continue with the next step Service Manual C Samsung Electronics Alignment amp Troubleshooting 3 Loosen the paper if it is caught in the
49. er 3 2 2 Main Cover 3 2 3 Fuser unit X se a Seo ee a 3 24 SMPS board s s so w s a mo w ew es oga 3 25 Main PBA s soe soe sow e w eoe ee ee nr n n 3 2 6 Drive unit 3 2 7 LSU 3 2 9 Transfer roller 3 2 10 Pick up roller 4 Alignment amp Troubleshooting 4 1 Alignment and Adjustments 4 1 1 Sample Pattern de 4 1 2 Control Panel 4 1 3 Consumables and Replacement Parts 4 4 1 4 Periodic Defective Image 4 1 5 How to use DCU BELLI 416 Paper Path o o nen 42 Troubleshooting rrr tr t ont nz 4 2 1 Checking Symptoms 4 2 2 Bad discharge 4 2 3 Malfunction 4 2 4 Bad Software Environment 4 2 5 Bad image Exploded Views amp Parts List 5 1 Main Assembly 5 2 Frame Assembly ML 2240 5 3 Frame Assembly ML 1 i 5 4 Fuser Unit 5 5 Paper Path Unit ttr 5 6 MP Tray Assembly Only ML 2 6 System Diagram 7 Reference Information 7 1 Troubleshooting Tools 7 7 2 Acronyms and Abbreviations sas sao 7 3 Selecting printer locations 7 4 Sample Tests Patterns e 7 5 Parts Life Cycle Maintenance Table 7 5 1 Parts Life Cycle Maintenance Table 7 5 2 rio ia e 7 6 Model Information 7 6 1 Understanding for Model Code 7 6 2 Understanding Material Code amp Name 7 7 6 3 F W Upgrade Method e e 7 Precautions 1 Prec
50. ess 3 2 5 Main PBA Before Disassembling Separate the SMPS cover Refer to 3 3 Remove the Main PBA after remove the 3 screws and all harness Service Manual ED Samsung Electronics Disassembly and Reassembly 3 2 6 Drive unit 1 To remove the Drive assy first remove the Main cover 3 Unplug the one harness refer to 3 3 And remove the 2 screws as shown below 2 Remove the 6 screws and then release the Drive unit Service Manual V Samsung Electronics Disassembly and Reassembly 3 2 7 LSU Before disassembling Separate the Main cover Refer to 3 3 Release the LSU after remove the 3 screws and 2 harness 3 2 8 HVPS board 1 Remove the 5 screws 2 Remove the 2 connector as shown below Service Manual 2 Samsung Electronics Disassembly and Reassembly 3 2 9 Transfer roller Before disassembling Separate the Main cover refer to 3 3 and Fuser unit refer to 3 4 Remove the transfer roller by lift up the edge with any tool 3 2 10 Pick up roller 1 Remove the hook of both side And pull the pick up roller to the direction of arrow Service Manual ED Samsung Electronics Alignment amp Troubleshooting 4 Adjustment and Troubleshooting 4 1 Alignment and Adjustments 4 1 1 Sample Pattern This product has the several sample patterns for maintenance With the sample patterns check the existe
51. g unpackaged replacement ESDs Normal motions such as the brushing together of clothing fabric and lifting one s foot from a carpeted floor can generate static electricity sufficient to damage an ESD Service Manual qe Samsung Electronics Product spec and feature 2 Product specification and feature 2 1 Product Specifications 2 1 1 Product Overview Item Descriptions Model name ML 1640 ML 2240 Marketing target Personal use Main Specification speed ML 1640 17 ppm Ltr 16 ppm A4 ML 2240 23 ppm Ltr 22 ppm A4 150MHz Jupiter4e CPU 8M memory Toner Cartridge Initial 0 7K Sales 1 5K Machine Life 50K 2 1 2 Specifications Product Specifications are subject to change without notice See below for product specifications 2 1 2 1 General Specifications liem ML 1640 ML 2240 Major Features Print Print Size W D H 353mmx298mmx213mm 353mmx298mmx213mm 13 9x11 7 x8 4 13 9x11 7 x8 4 Net Weight Inc Toner Cartridge 5 7kg 5 9kg Net Weight exc Toner Cartridge 4 95kg 5 05kg Gross Weight with package 7 1Kg 7 5Kg LCD N A one button 2 LED N A one button 2 LED I O Interface USB2 0 Full Speed USB2 0 Full Speed MPU Jupiter4e 150MHz Jupiter4e 150MHz Power Consumption Printing Operation 300W 350W Sleep Mode 6 Wh Energy Star Compliant 6Wh Energy Star Compliant Power Switch Yes Yes Power Suppl
52. grated Circuit ASSY assembly BIOS Basic Input Output System BLDC Brush less Direct Current CMOS Complementary Metal Oxide Semiconductor CN connector CON connector CPU Central Processing Unit dB decibel dbA decibel A dBM decibel milliwatt DC direct current DCU Diagnostic Control Unit DPI Dot Per Inch DRAM Dynamic Random Access Memory DVM Digital Voltmeter ECP Enhanced Capability Port EDC Embedded Diagnostic control EEPROM Electronically Erasable Programmable Read Only Memory EMI Electro Magnetic Interference EP electrophotographic EPP Enhanced Parallel Port FPOT First Printout Time FAN firmware GDI graphics device interface GND ground HBP Host Based Printing HDD Hard Disk Drive H H High temperature and high marshy place HV high voltage HVPS High Voltage Power Supply VF interface 1 0 Input and Output IC integrated circuit IDE Intelligent Drive electronics or Imbedded Drive Electronics Service Manual Samsung Electronics Reference information Acronyms and Abbreviations 2 Abbreviations IEEE IPA IPM LAN Ib LBP LCD LED L L LSU MB MHz MPF NIC N N NVRAM OPC OPE PBA PCL PDL PPM PPS PS PTL PWM Q PID Q ty RAM ROM SCF SMPS SPGP SPL Spool SW sync USB WECA Explanation Institute of Electrical and Electronics Engineers Inc Isopropy Alcohol Images Per Minute local area network pound s Laser Beam Printer Liquid Crystal Display Light Emitting Diode Low temperature a
53. he printer cover is open Check and Cause 1 Check the connector and circuit of the cover switch 1 Check the insertion of the Cover department in the Main Control board Open S W Connect Perform DCU mode If Error state 2 Replace the Main Control board 64 occurs Check the related or Cover Open S W codes of the Cover 4 33 Service Manual Samsung Electronics Alignment amp Troubleshooting 7 Defective motor operation e Description Main motor is not driving when printing and paper does not feed into the printer resulting Jam O Check and Cause 1 Motor harness or sub Check the motor harness replace PCB may be defective it if defective 2 Perform DCU diagnostic code 00 and Check the motor operation Replace the SMPS if necessary 4 34 Service Manual Samsung Electronics Alignment amp Troubleshooting 8 No Power Description When system power is turned on all lamps on the operator panel do not come on Check and Cause 1 Check if the power input and Replace the power supply cord or SMPS output are normal SMPS 2 Check the inferiority of LED Panel on the front cover if the LED of Panel does not appear after normal warming up 1 Replace the control board 2 Replace the LED panel 4 35 Service Manual Samsung Electronics Alignment amp Troubleshooting 9 Vertical Line Getting Curved Description When printi
54. ice Thermostat cuts off the power Safety device The power of Fuser is cut off after front cover is open The overheating safety device for customer The surface temperature of the Fuser Cover is under 80 C Service Manual D Samsung Electronics Product spec and feature 2 2 1 5 LSU Laser Scanner Unit The LSU unit is controlled by video controller It scans the video data received from video controller with laser beam by using the rotation principle of the polygon mirror to create the latent image on the OPC drum It is the core part of LBP The OPC drum rotates as the same speed as the paper feeding speed It creates the HSYNC signal and sends it to the engine when the laser beam of the LSU reaches the end of the polygon mirror and the engine detects the HSYNC signal to arrange the vertical line of the image on the paper After detecting the HSYNC signal the image data is sent to the LSU to arrange the its margin on the paper The one side of the polygon mirror is one line for scanning OPCDrum Photo Diode Polygon Mirror Polygon Motor LD Driver circit Motor Driver pS LD LaserDiode Protector panel Service Manual Samsung Electronics Product spec and feature 2 2 1 6 Toner Cartridge By using the electronic photo process it creates a visual image In the toner cartridge the OPC unit and the developer unit are in a body Th
55. ics Precautions 1 2 3 Handling Precautions If you ignore this information you could harm machine and could be damaged 1 Do not install it on different levels or slanted floor Please confirm whether it is balanced or not after installation If it is unbalanced an accident can be hap pened due to the machine falling over 2 Be careful not to insert a finger or hair in the rotating unit Be careful not to insert a finger of hair in the rotating unit motor fan paper feeding part etc while the machine is operating Once it happens you could be harmed 3 Do not place a pot containing water chemical or small metals If they got caught into the inner side of machine a fire or electric shock can be occurred 4 Do not install it where lots of moisture or dust exists or where raindrop reaches A fire or electric shock can be caused 5 Do not place a candlelight burning cigarette and etc on the machine Do not install it near to heater A fire can be occurred 1 2 4 Assembly Disassembly precaution When replacing parts do it very carefully Memorize the location of each cable before replace parts for recon necting it afterwards Do memorize Please perform the steps below before replace or disassembly the parts 1 Check the contents stored in the memory All the information will be erased after replacing main board The information needed to keep has to be written down 2 Before servicing or replacing electric p
56. ies DIGIT 1 2 3 4 5 6 7 8 9 10 Example M L 2 2 4 0 Definition Product Classification Color 1 Speed of Engine 1 New model 1 Basic 0 Main feature Space Product If same speed models series model description Basic Omitt are released division 2 Series N NW ed Code Printer Laser Default simultaneously higher Over 3rd grade model divi P PS Description Class of Beginning Omissoin model is added 1 at project sion S NW4PS Product letter of Only color speed code Below 4th B Bluetooth Description printer printer If over 10 models with 2 Valuablet grade T 2nd CST M Description C initial Division same speed are brought model division project M Mac L Engine E between into tenth model is in market PC Bundle Compatible code added 1 despite of not Domestic X Scanner over 3rd grade distribution Beside 2 Domestic Entry Model VE model etc Entry model abovefeature Distribution Valuable model excepted description C amp C Engine speed is decided product Information The first byproduct conception number deleted planning group to product with sales planning prospect group responsed Description Alphabet Digit Alphabet 7 7 Service Manual Samsung Electronics Reference information 7 6 2 Understanding Material Code amp Name Material code and name is maintained by standard criteria If understand the criteria it will help to order
57. iles to secure enough virtual memory but it actually comes space of the hard disk and start printing job again rom the insufficient space of the hard disk 4 39 Service Manual Samsung Electronics Alignment amp Troubleshooting 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 medi um so that it can be printed or otherwise processed at a more convenient time for example when a printer is finished printing its current document Check and Cause 1 Insufficient space of the hard disk in the directory assigned for the basic spool Description Delete the unnecessary files to provide more space to start printing job If there are some files with the extension name of jnl Delete them and Reboot the Windows to restart printing job 2 If the previous printing error not solved Shut down all other programs except the current one if possible 3 When expected to collide with other program 4 When an application program or the printer driver is damaged Delete the printer driver completely and reinstall it After rebooting the computer check for viruses restore the damaged files and reinstall the program to do the printing job 5 When some files related to OS are damaged or viru
58. it by gearing Feeder Developer Motor Fuser Exit 2 2 1 4 FUSER The fuser is consisted of the Heat Lamp Heat Roller Pressure Roller Thermister and Thermostat It adheres the toner on the paper with pressure and heat to complete the printing job Life Cycle 50K pages Service Manual Quo Samsung Electronics Product spec and feature 1 Heat Lamp Heat Lamp Terminal Shape Terminal Single Type Voltage 120 V 115 5 96 220 V 230 5 Capacity 600 Watt ML 1640 750 Watt ML 2240 5 96 Life 3000 Hr 2 Thermostat Thermostat Type Non Contact type THERMOSTAT Control Temperature 150 C 5 C 3 Thermistor Thermistor Type HF K7006 Temperature Resistance 7 yo 180 C SYSTEM Temperature SETTING Stand by 155 145 140 5 30page 31 60page 60page NN Plain Printing 175 170 C 5 30page 30page NN Plain Overshoot 200 C or less Overheat 220 C or less 4 Heat roller Length 247 5 mm Valid length 222 mm GND Type H R Bearing Grounding type By SECC Fuser frame 5 Pressure roller Shaft Length 237 5 mm Rubber Length 222 mm 6 Paper separation method Teflon sintered Claw System 7 Safety Relevant Facts Protecting device when overheating 1st protecting device H W cuts off when detecting an overheating 2st protecting device S W cuts off when detecting overheating 8st protecting dev
59. ll help to comprehend basic and derived model Classification Model abbriviation Feature Properties DIGIT 1 2 3 4 5 6 7 8 9 10 Example M L 1 6 4 0 Definition Product Classification Color 1 Speed of Engine 1 New model 1 Basic 0 Main feature Space Product If same speed models series model description Basic Omitt are released division 2 Series N NW ed Code Printer Laser Default simultaneously higher Over 3rd grade model divi P PS Description Class of Beginning Omissoin model is added 1 at project sion S NW PS Product letter of Only color speed code Below 4th B Bluetooth Description printer printer If over 10 models with 2 Valuablet grade T 2nd CST M Description C initial Division same speed are brought model division project M Mac L Engine E between into tenth model is in market PC Bundle Compatible code added 1 despite of not Domestic X Scanner over 3rd grade distribution Beside 2 Domestic Entry Model VE model etc Entry model abovefeature Distribution Valuable model excepted description C amp C Engine speed is decided product Information The first byproduct conception number deleted planning group to product with sales planning prospect group responsed Description Alphabet Digit Alphabet Classification Model abbriviation Feature Propert
60. ller and has USB interface and built in Flash memory with 4Mbits capacity OPE B D Build in HVPS Jupiter IV ASIC V1 1 USB DRAM 8M Byte Printer Engine Flash Memory BD 0 5M Byte 2 2 2 1 a Main Control ML 1640 2240 of Main Control are composed of CPU and Print and operate follows function by CPU Bus Control l o Handling each Driver and PC Interface Main Control operate its full function on the Main B d and CPU control Controller ASIC and build in Memory 2 2 2 1 b CPU Use 32Bit RISC Processor of Jupiter4e and control system by operating Operation Block of the System Program inside Flash Memory Service Manual Cmm Samsung Electronics Product spec and feature Main Function Block Completely Integrated System for Embedded Applications 32 Bit Risc Architecture Efficient and Powerful ARM9 CPU LSU Interface Module for Interfacing PVC with LSU 2 Channel General Purpose DMA Controller for High Speed I O Dual Memory Bus Architecture Operation Frequency 150MHz Operation Voltage 3 3V POWER ON RESET TIME 6 6ms below 2 2 2 1 c Flash Memory Store System Program and can be down load System Program through PC Interface Capacity 0 5M Byte Access Time 70 nsec 2 2 2 1 d DRAM When Printing use Band Buffer System Working Memory Area 8M capa 8M Byte basic Access Time 60 nsec 2 2 2 1 e ENGINE This recording method is electrophography method using LSU which tone
61. lowing items Toner Cartridge Power Cord Quick Install Guide Paper Cover Service Manual Cc Samsung Electronics Product spec and feature 2 2 4 2 Replacing Toner When the status LED lights red it means the machine cartidge is totally exhausted Your machine stops printing Also the Smart Panel program window appears on the computer telling you to replace the cartridge At this stage the toner cartridge needs to be replaced Check the type of toner cartridge for your machine 1 Turn the machine off then wait a few minutes for 4 Holding both handles on the toner cartridge the machine to cool thoroughly rock it from side to side to evenly distribute the toner 2 Grasp the front cover and pull it toward you to open 5 Locate the cartridge slots inside the machine one on each side 3 Remove the toner cartridge from its bag and remove the cap protecting the cartridge by pulling the packing tape Service Manual ED Samsung Electronics Product spec and feature 6 Unfold the toner cartridge handle and grasp it 7 Close the front cover Make sure that the cover is Insert the cartridge in the machine until it snaps into securely closed If the cover is not firmly closed place printing errors may occur when you print Service Manual ED Samsung Electronics Product spec and feature 2 2 4 3
62. main PBA and cable harness 3 Check the Paper Path J Is there a Paper Jam gt Remove any paper fragments caught in the paper path Paper Jam occurs repeatedly at a specific point in the Paper Path gt Open the fuser cover Jam clear gt 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 gt If there is an error check cables and driver installation 5 Check the Print Quality ls there are a Print Quality Problem gt Refer to section 4 2 5 Page 6 17 6 Check consumables toner etc Using the keys print the Test Pattern gt Expected life of various consumable parts compare this with the figures printed and replace as required 4 19 Service Manual Samsung Electronics Alignment amp Troubleshooting 4 2 1 2 Initial Inspection 1 Check Power part The printer does not work no matter how long you wait A Is the Power Switch printer and wall socket turned on B Is the Power Cord connected to the printer correctly C Is the Power cord connected to the wall socket correctly D Is wall socket working E Is the unit rated at the same voltage as the supply 2 Does the Fan work when power is turned on A Check the connectors on the SM
63. materials 1 Two different description ways for material code Digit Ii Letter Alphabet Type 1 ex 2007 007961 RCHIP Type 2 MNG 0 000008 8 x JB96 01268A ELA UNIT COVER TOP Type 1 Parts managed by entire divisions Materials used by all samsung products Most electrical parts are under the type 1 Type 2 Parts managed by a division Material used by a certain product Most mechanical parts are under type 2 2 A S Only material Only for A S not related to product manufacturing 3 Ass y material More than two materials are assembled If the material order is out of service the order can be processed by Ass y material order Picture and numbers are also described on Service manual x Ass y Material and A S Only material Code are recognizable by product name Those are under type 2 and known by material properties and beginning letters of product name Classification Material Code Material Name A S Only Material 81 JB81 00039A AS AS FUSE A S Only Material 75 JB75 00068A MEC MEC CHUTE A S Only Material 92 JB92 01131A PBA PBA MAIN CONTROLLER A S Only Material 96 JB96 01268A ELA ELA UNIT COVER TOP A S Only Material Q7 JB97 01089A MEA MEA UNIT PULLEY IDLE 7 6 3 FAV Upgrade Method x If FAV needs Upgrade F W file and usbprn file are requested lil Check Ready condition with power ON
64. n pressed the right LED is on and temperature of the fuser is up to READY Mode If the Up button pressed the middle LED is on and temperature of the fuser is up to Printing Mode If you press the button once more the left LED is on and temperature of the fuser is up to overheat Mode 11 Hot Burn Test If the enter button pressed the printer is continuously printing without detection Turn the power off to stop operation 12 Cleaning Mode Print Mode Print the paper to clean the OPC Drum in the Cartridge 13 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 14 PTL Test ML 1610 not design Indicates the function of the PTL same method of the code 07 15 Fan Test Indicates the function of the Fan same method of the code 07 16 Manual Pickup Test Indicates the function of th Manual Pickup same method of the code 07 17 Manual Sensor Test Indicates the function of the Manual Sensor same method of the code 07 4 11 Service Manual Samsung Electronics Alignment amp Troubleshooting Function Remark Motor Motor Run Motor S top MHV Mhv On Mhv Off 1300V THV Thv Negative On Thv Negative Off 1000V THV Thv On Thv Off 1300V Supply DEV Dev On Dev Off 350V 0 550V 0 350V LSU Run e
65. n system There are three control modules i e Engine Main Control Module Engine Interface Module and Sensing amp Unit Control Module Probably from usual state it will be able to rehabilitated a prior to entry error state in error condition it is to confirm When the if rehabilitation is possible then after rehabilitating it goes back in usual state else with an error condition it goes in error state Currently the rehabilitation function of the low heat error the over heat error and the LSU error is embodied Low Heat Error When the error occurrs it does not indicate an error It stores the present temperature and supplies the heat to the fixing unit during the scheduled time If the temperature goes up after scheduled time it goes back to a normal state However if not it is formed that an error occurrs Over Heat Error When the error occurs it informs an error first It stores the present temperature as well and waits a scheduled time If the temperature goes down after scheduled time then it goes back to a normal state However if not it is formed that an error occurrs Lsu Error When the error occurrs it does not indicate an error It accomplishes printing only again If even time when it judges an error it informs an error Concretely speaking if the LReady or Hsync error happens the paper exits out beforehand And then the engine mode is changed to recovery mode and the engine informs the main system of the
66. n with soft contaminated with foreign clothe dampened with IPA matter oil Isopropyl Alcohol 3 The face of paper is blended Use the smooth paper Service Manual UE Samsung Electronics Alignment amp Troubleshooting 6 Paper rolled in the Fuser Description If contaminated at intervals of 57mm on the back of a paper Check and Cause 1 Contamination of the After disassembling the fuser clean pressure roller or heat roller contamination between the heat Background Hot off set roller and the thermostor and remove the contamination of the pressure roller If there is heavy background 2 Check the claw of the fuser repair it by the background whether it is unfitted troubleshooting method The surface of the heat roller with IPA or water Check the warp or separation of the sprint claw and the holder plate claw and then manage it 4 26 Service Manual Samsung Electronics Alignment amp Troubleshooting 7 Paper rolled in the Toner Cartridge OPC Drum e Description Paper is rolled up in the OPC Check and Cause 1 Paper is too much thin Recommend to use normal paper How to remove the rolled in the OPC Drum 2 The face of paper is curled Remove the paper while turning the OPC Drum against the ongoing direction 4 27 Service Manual Samsung Electronics Alignment amp Troubleshooting 4 2 3 Malfunction 1 Red LED on On li
67. nce of the abnormality The patterns help to regularly maintain the product 4 1 1 1 Printing a Demo Page Print a demo page or a configuration sheet to make sure that the printer is operating correctly 1 Hold down the Cancel button for about 2 seconds to print a demo page Service Manual ED Samsung Electronics Alignment amp Troubleshooting 2 The Demo page or the configuration sheet shows the printer s current configuration Monochrome Laser Printer ML 2240 Series DigitAllperformance Up to 23 ppm in Letter print speed 22 ppm in A4 Up to 1200 x 600 dpi effective output Strong 150 MHz processor 8MB Memory DigitAllvalue One touch Cancel Button DigitAllcompatibility Windows 2000 XP 2003 Server Vista Various Linux OS including Red Hat 8 9 Fedora Core 1 4 Mandrake 9 2 10 1 and SuSE 8 2 9 2 Mac OS 10 3 10 5 Full speed USB SPL Samsung Printer Language emulation Ram Size 8 Mbytes Total Page Count 35 OS Version 1 00 00 24 01 29 2008 Engine Version 0 80 00 SPL Version 5 07 06 27 2006 USB S N 144SB1BQ100047K Service Date YYYYMMDD Toner Page Count Toner Remaining 35 90 Toner Status Normal Cartridge Capacity 0 7K Dot OPC Count 10469446 242 Cartridge S N Not Support Supplier SAMSUNG INI Manufacturing Date Not Support Samsung Electronics All rights reserved www samsungprinter com Service Manual Samsung Electronics
68. nd low marshy place Laser Scanning Unit megabyte megahertz Multi Purpose Feeder Network Interface Card Normal temperature and normal marshy place nonvolatile random access memory Organic Photo Conductor Operate Panel Equipment Printed Board Assembly Printer Command Language Printer Control Language Page Discription Language Page Per Minute Pulse Per Second Post Script Pre Transfer Lamp Pulse Width Modulation Quick Printer Initiating Device quantity Random Access Memory Read Only Memory Second Cassette Feeder Switching Mode Power Supply Samsung Printer Graphic Processor Samsung Printer Language Simultaneous Peripheral Operation Online switch synchronous or synchronization Universal Serial Bus Wireless Ethernet Compatibility Alliance Service Manual Samsung Electronics Reference information 7 3 Selecting printer locations Leave enough room to open the printer trays covers and allow for proper ventilation see diagram below Provide the proper environment A firm level surface Away from the direct airflow of air conditioners heaters or ventilators Free of extreme fluctuations of temperature sunlight or humidity Clean dry and free of dust 100 mm 3 9 in 482 6 mm 18 8 in Service Manual Samsung Electronics Reference information 7 4 Sample Tests Patterns The sample patterns shown below are the stan
69. ne Error LED Fuser Error Description 1 Red LED on On line Error LED 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 1 Check if the thermostat If the thermostat is open replace AC wire and Heat Lamp is open the fuser and check following items If the thermistor sensor device is 2 Check if the thermistor located deep in the sponge sensor is in place replace the fuser 3 Check if the heat lamp Check if the circuit of overheat works properly mode works properly 4 Check if the overheat Run DCU mode Perform DCU circuit works properly diagnostic code 10 5 The fuser gear is defective due to melting away Replace Fuser 4 28 Service Manual Samsung Electronics Alignment amp Troubleshooting 2 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 DCU Mode Check if the Error States Repl he F 60 62 68 occur Check the operation z a da End estoy of Fuser Erasing Lamp On Off with A goard the Error Code Check 10 Service Manual ae Samsung Electronics Alignment amp Troubleshooting 3 Paper Empty Description The paper lamp on the operator panel is on even when paper is loaded in the cassette Check and Cause 1 Ben
70. ng vertical line gets curved Check and Cause 1 If the supply of 24v is unstable in the Main Control board 1 Replace LSU linking with LSU check drive by 2 Replace the Main Control board DCU Mode LSU Check 05 LSU Motor on Service Manual iud Samsung Electronics Alignment amp Troubleshooting 4 2 4 Bad Software Environment 1 The printer is not working 1 e Description While Power turned on the printer is not working in the printing mode Check and Cause 1 Run Self Test Mode Check the power of the printer and perform the Turn the power on and pressing Self Test If the test printing works that means no System Data List by pressing Menu problems in the printer itself If the test printing Reports System Data does not work that means bad functioning of the printer not because of software 2 Check if the PC and the printer is properly connected and the toner cartridge installed Replace the printer cable If the problems not solved even after the cable replaced check the amount of the remaining toner Check if the connection between PC and printer port is proper If you use windows check if the printer driver in the controller is set up If the printer driver is properly set up check in which program the printing is not working The best way to find out is to open the memo pad to check the function of printing If it is not working in a cert
71. ng Electronics Alignment amp Troubleshooting 4 1 3 Consumables and Replacement Parts The cycle period outlined below is a general guideline for maintenance A printer can t transmit or receive documents this line is for fax machines Environmental conditions and actual use will vary these factors The cycle period given below is for reference only COMPONENT REPLACEMENT CYCLE Pick up Roller 50 000 Pages Transfer Roller 50 000 Pages Fuser 50 000 Pages Toner Cartridge 1 500 Pages Sales 700 Pages Initial Service Manual qq Samsung Electronics Alignment amp Troubleshooting 4 1 4 Periodic Defective Image If the delinquent image regularly occurs in the printed paper it is due to delinquent or damaged roller Refer to the table in below and check the condition of the roller No Roller Defective image Typical defect 1 OPC Drum 75 5mm white spot on black image or black spot 2 Charge Roller 37 7mm black spot 3 Supply Roller 47 5mm light or dark horizontal image band 4 Developing Roller 35 2mm horizontal image band 5 Transfer Roller 46 2mm image ghost 6 Heat Roller 63 9mm Black spot and image ghost 7 Pressure Roller 75 4mm black spot on the backside D OPC Drum D Transfer Roller Charge Roller Q Heat Roller O Supply Roller D Pressure Roller O Developing Roller Service Manual Samsung Electronics Alignment amp Trou
72. ng Time 50 ms Max Out Voltage Falling Time 50 ms Max Out Voltage Range 30 M 1000 Mo Output Control Signal MHV PWM CPU is HV output when PWM is Low 3 Developing Voltage DEV IInput Voltage 24 V DC 15 Output Voltage 350V 4 6 Output Voltage Fluctuation range PWM Control Input contrast of the output stability degree 5 or less Loading contrast 5 or less Output Voltage Rising Time 50 ms Max Service Manual Qu Samsung Electronics Product spec and feature Output Voltage Falling Time 50 ms Max Output Loading range 10MBY 1000 Ho Output Control Signal BIAS PWM the CPU output is HV output when PWM is low 4 Supply Output Voltage 550 V 8 6 ZENER using DEV Input contrast of the output stability degree under 5 Loading contrast 5 or less Output Voltage Rising Time 50 ms Max Output Voltage Falling Time 50 ms Max Output Loading range 10 yo 1000 ya Output Control Signal BIAS PWM the CPU is HV output when PWM is low LED2 Toner Save LED LED1 Error LED Switch tem mills Micro Switch 24VS 24VS 24VS2 24VS2 3 3V DGND 5V P_EXIT THV_PWM THVEN MHVPWM THVREAD BIAS PWM FAN P_EMPTY CRU_DET KEY_IN TONERSAVE ERROR READY Service Manual Qu Samsung Electronics Product spec and feature 2 2 2 7 FUSER AC POWER CONTROL
73. o Software User Guide for information about installing the Linux driver 3 System Requirements Your machine supports following operating system Windows 98 Me 2000 XP The following table shows Windows requirements Item Requirements Operating System Window 98 Me 2000 XP Vista CPU Window 98 Me 2000 XP Pentium Il 400 or higher Window XP Pentium Il 933 Ghz or higher RAM Window 98 Me 2000 64 MB or higher Window XP 128 MB or higher Free Disk Space Window 98 Me 2000 300 MB or higher Window XP 1 GB or higher Internet Explorer 5 0 of higher Service Manual Samsung Electronics Disassembly and Reassembly 3 Disassembly and Reassembly 3 1 General Precautions on Disassembly When you disassemble and reassemble components you must use extreme caution The close proximity of cables to mov ing parts makes proper routing a must If components are removed any cables disturbed by the procedure must be restored as close as possible to their original positions Before removing any component from the machine note the cable routing that will be affected Whenever servicing the machine you Releasing Plastic Latches must perform as follows Many of the parts are held in place with plastic latches 1 Check to verify that documents are not stored in mem The latches break easily release them carefully ory To remove such parts press the hook end of the latch away from the part to which it is latched
74. ools list list of abbreviations used in this manual and a guide to the location space required when installing the printer A definition of tests pages and Wireless Network information definition is also included 7 1 Tool for Troubleshooting The following tools are recommended safe and easy troubleshooting as described in this service manual DCU Diagnostic Control Unit Cotton Swab Standard Test equipment to diagnose the Laser Standard For general home use for medical service printer supplied by Samsung Electronics S 2 SSS Cleaning Equipments Standard An IPA Isopropyl Alcohol dry wipe tissue or a gentle neutral detergent and lint free cloth DVM Digital Volt Meter Standard Indicates more than 3 digits Vacuum Cleaner Driver pA Standard type type M3 long M3 short M2 AO e long M2 short Tweezers A Standard For general home use small type A E N Service Manual Samsung Electronics Reference information 7 2 Acronyms and Abbreviations 1 The table below explains the abbreviations and acronyms used in this service manual Where abbreviations or acronyms are used in the text please refer to this table Abbreviations Explanation AP Access Point AC Alternating Current APC Auto Power Control ASIC Application Specific Inte
75. persons CAUTION INVISIBLE LASER RADIATION WHEN THIS COVER OPEN DO NOT OPEN THIS COVER VORSICHT UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEOFFNET NICHT DEM STRAHL AUSSETZEN ATTENTION RAYONNEMENT LASER INVISIBLE EN CAS D OUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU ATTENZIONE RADIAZIONE LASER INVISIBILE IN CASO DI APERTURA EVITARE L ESPOSIZIONE AL FASCIO PRECAUCION RADIACION LASER IVISIBLE CUANDO SE ABRE EVITAR EXPONERSE AL RAYO ADVARSEL USYNLIG LASERSTRALNING VED ABNING NAR SIKKERHEDSBRYDERE ER UDE AF FUNKTION UNDGA UDSAETTELSE FOR STRALNING ADVARSEL USYNLIG LASERSTRALNING NAR DEKSEL APNES STIRR IKKE INN STRALEN UNNGA EKSPONERING FOR STRALEN VARNING OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD OCH SPARREN AR URKOPPLAD BETRAKTA EJ STRALEN STRALEN AR FARLIG VARO AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NAKYMATTOMALLE LASER SATEILYLLE ALA KATSO SATEESEEN Perks UR SETS 015748 SH allo loj 5E goose FoJE Service Manual Samsung Electronics Precautions 1 2 Safety Caution 1 2 1 Noxious Material Precaution The toner in a printer cartridge contains a chemical material which may harm human body if it is swallowed Please keep children out of reach of the toner cartridge 1 2 2 Electric Shock or fire Precaution It is possible to get electric shock or burn by fire if you don t fallow the instructions of the manual 1 Use exact voltage Please
76. pread insecticide on the power cord A fire or electric shock can be happen due to thinner weak cover of the power cord 8 Check whether the power outlet and the power plug are damaged pressed chopped or blazing fire or not When such inferiorities are found repair it immediately Do not make it pressed or chopped when moving the machine 9 Caution when there is thundering or lightning and being flash of lightening It causes a fire or electric shock Take the power plug off there is thunder Do not touch cable and device when thundering and flash of lighten ing 10 Avoid the place where is moisture or has dust Do not install the printer where lots of dust or around humidifi er A fire can occurred A plug part need to clean well with dried fabric to remove dust If water drops are dripped on the place covered with dust a fire can occurred 11 Avoid direct sunlight Do not install the printer near window where direct contacts to the sunlight If the machine contacts sunlight long time the machine cannot work properly because inner temperature of the machine is getting hotter A fire can occur 12 Turn off the power and take off the plug when smoke strange smell or sound from the machine If you keep using it a fire can be occurred 13 Do not insert steel or metal piece inside outside of the machine Do not put steel or metal piece into a ventila tor An electric shock could happened Service Manual Qu Samsung Electron
77. r is composed of 1 component and non magnetic 1 Recording Method LSU Laser Scanning Unit 2 Printing Speed 22ppm In continuing printing base A4 printing pages from 2nd to last during 1min 3 Recording Density 600 dpi x 1200 dpi 4 Cassette Capa Cassette 150sheets 75g m Base Manual 1 sheet Paper OHP Envelop etc 5 Paper Size Cassette Manual Width 76 216mm Length 125mm 356mm 6 Effective recording size A4 202 x 291 mm Letter 208 x 273 mm Legal 208 x 350 mm Folio 208 x 325 mm Top Margin 4 23 3 mm Left Right Margin 4 23 3 mm 7 CRU Toner Cartridge Life 1 500pages Printing A4 5 Pattern Printing 8 First Print Out Time 10sec Standby Service Manual ED Samsung Electronics Product spec and feature 2 2 2 2 Main Board Main Board are composed of Engine and Controller on the one Board Main Board control to send Current Imagedml Video Data to LSU to print and have motor Driving and Circuit for the current driving and also include Paper Exit Sensor Cover Open s w panel s w Li U11 IC CMOS LOGIC INVERTER Service Manual ED Samsung Electronics Product spec and feature p U6 Jupiter 4E Itis a main CPU and an Asic of Jupiter4E which has a CPU core CLK with over 150MHz and a System bus 75MHz It use 3 3V for operation voltage and I O It uses 75MHz for system bus CLK Built in Flash Memory 2 SDRAM Main memory SDCLK i
78. r roller Service Manual Samsung Electronics 2 Vertical White Line Description White vertical voids in the image Check and Cause Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer 1 Foreign matter stuck onto the window of internal lenses of LSU mirror 2 Foreign matter or toner particles between the toner Cartridge roller and blade In case the life of the toner cartridge has been expired white lines or light image occur in front of the image It may occur when Burr and foreign substances are on the window of the toner cartridge frame 4 f the fuser is defective voids occur periodically at the top of a black image 5 It may occur when foreign substances are on the OPC Drum 4 43 Alignment amp Troubleshooting Foreign matter stuck onto the window Clean the LSU window with recommended cleaner IPA Clean the window with a clean cotton swab Replace the toner cartridge No 3 Remove the foreign matter and burr of the exposure window toner cartridge No 4 Open the front cover and check ribs that corresponds to the position of the voids Remove if found If the problems are not solved replace the toner cartridge Service Manual Samsung Electronics Alignment amp Troubleshooting 3 Horizontal Black Band Description Dark or blurry horizontal stripes occur in
79. r sit amet consectuer Duis auten eum iriure dolor in hendreritin vulputate velit cesse ea commodo mol Stnecrep Balrecneps Nam liber tempor cum soluta nobis eleifend option cogue nihil consequat 8 c DE velillum Dolore eu zril feugiat nulla facilisis at vero eros accumsan et iusto odio dignissim qui bl praesent oBvez LOZAXMANLSHOAON w O e m a 0 I c A r lt z o D o D 7 4 c lt x o1 N o S N wo RB a o ES oo e 2 w O 9 m m 0 I c A e z Z o Td o D n o c lt x x N nN wo RB e Singabet co o gt s o is m T Stephen J Singel x Demperta Aminerimum S Labanda Sinpat Abarress ES SsJS dwg OFINAL MARLSHOdONWDICIHOJ3Q08V687 MANLSYO X KLMNOPQRSTUVW HIJKLMNOPQRSTUVWXY2Z01 23456789ABCDEFGHIJ ABCDEFG Service Manual 13 Samsung Electronics Reference information 7 5 Parts Life Cycle Maintenance Table 7 5 1 Parts Life Cycle Maintenance Table Supplies Life Cycle Condition Panel LED Custmoer Responding Panel Manage Toner Cartridge 1 5K For Product Toner Low Toner LED Red LED blinking 1096 Remains 0 7K For Sale Toner Uninstall Online Error LED Red Fuser 50 000 page Thermistor Open Error On line Error LED Red Replaced at DCU Code 60 Exhauseted Low Heat Error On line Error LED Red Replaced at DCU Code 62 Exhauseted Over Heat Error On line Error LED
80. ror LED Orange LED On O CoverOpen On Line Error LED Red LED On O MotorError On Line Error LED Red LED On O LSU Hsync Error On Line Error LED Red LED On O LSU Motor Error On Line Error LED Red LED On O Thermistor OpenError On Line Error LED Red LED On O Fuser High Error On Line Error LED Red LED On O Fuser Low Error On Line Error LED Red LED On O Toner Low Toner LED Red LED Blinking 2 5sec On Off O Replace Toner Toner LED Red LED Blinking 1 0sec On Off O Toner Empty Replace Toner Toner LED Red LED On O Toner Exhausted H Stop Installer Error On Line Error LED RED LED On O H Stop Invalid Error On Line Error LED Red On O H Stop Genuine Error On Line Error LED Red On O Cancel button STATUS DESCRIPTION Printing demo page In ready mode press and hold this button until the status LED blinks and release Canceling print job Press this button during printing The red LED blinks while the print job is cleared from both the machine and the computer and then the machine returns to ready mode This may take some time depending on the size of the print job Manual print Press this button during printing The On Line Error LED blinks while the print job is cleared from both the machine and the computer and then return to ready mode This may take some time depending on the size of the print job In Manual Feed mode you can t cancel the print job by pressing this button Service Manual D Samsu
81. s infected Continue Service Manual Samsung Electronics Alignment amp Troubleshooting Continue Add up enough memory to the PC 6 Memory is less than suggested one Ah How to delete the data in the spool manager In the spool manager the installed drivers and the list of the documents waiting to be printed are shown Select the document to be deleted and check the delete menu If you intend to delete the current document being printed the data being transferred to the printer will be put out and then the document is removed Before choosing the document the menu is still inactive Or put the document out of the list and repeat the routine as in the above or finish the spool manager Service Manual Samsung Electronics Alignment amp Troubleshooting 4 2 5 Bad image 1 Vertical Black Line and Band 1 Straight thin black vertical lines are shown in the print out Description 2 Dark black vertical bands are shown in the print out Check and Cause 1 Damaged develop roller in If causes 1 and 2 occur in the the Toner cartridge Deformed Doctor blade toner cartridge replace the toner or cleaning blade cartridge and try to print out 2 Scratched surface of Replace the transfer roller if the charge roller in the toner cartridge occurred as No 3 3 Partly depression or deformation on the surface of the transfe
82. s 75Mhz Regulator It Supplies the core voltage to CPU by converting 3 3V to 1 8V a EEPROM U8 93C66 Itis an EEPROM with 12C method SMPS connector CN7 It connects SMPS supplies the power and delivers the high voltage contol signal etc If a harness is not normally connected to this connector power cannot be supplied amp LSU connector CN14 It connects a LSU BLDC Motor connector CN9 lt connects an main motor and drive a BLDC Motor HVPS connector CN13 It connects a HVPS DCU connector CN8 It interface a DCU JIG USB connector CN10 It interface a the printer Service Manual ED Samsung Electronics Product spec and feature 2 2 2 3 Asic SPGPm Specification 2 2 2 3 a Introduction Jupiter4E is One Chip micro Controller for Low cust Laser beam Printer 1 One Chip Laser Beam Printer Controller GDI only AMBA AHB used for high speed bus transactions between masters and slaves AMBA APB used for low speed bus transactions between ARM core and peripherals 3 PLLs 2 Dithered PLL and 1 General PLL first for CPU 150MHz AHB 75MHz APB 75MHz second for USB 48MHz third for PVC b9MHz 75MHz system operation 1 8V power operation 33V tolerant input and bi directional I Os SDRAM and IO Address Data signals multiplexing 2 Integrated ARM940T 32 bit RISC embedded processor core 150MHZ core frequency operation Harvard Architecture Cache
83. shooting 1 Dark or blurry spots occur periodically in the printing 2 White spots occur periodically in the printing Print several OPC cleaning Mode Prints and then run the Self test 2 or 3 times In case of 75 5 mm interval unremovable in 1 cleanly remove foreign substances stuck on the OPC location equivalent to black spots and white spots with a dry duster 1 The transfer roller guarantees 50 000 sheets printing If the roller s life is expired replace it In case of 37 7 mm interval unremovable in 1 take measures as to replace the develop er cartridge and try to print out Clean the inside of the set against the paper particles and foreign matter in order not to cause the trouble Samsung Electronics Alignment amp Troubleshooting 5 Light Image Description The printed image is light with no ghost Check and Cause 1 Develop roller is stained when the toner of toner cartridge is almost consumed Check if the Toner Save mode is off 2 Ambient temperature is below than 10 C Replace the developer cartridge and try to print out 3 Bad contact caused by the toner Wait 30 minutes after printer is tains between the high voltage terminal in powered on before you start printing he HVPS and the one in the set 1 Clean up the contaminated area by the toner 4 Abnormal output from the HVPS 2 Replace the HVPS if the problems are not
84. shooting 8 Background Description Light dark background appears in whole area of the printing Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer 1 Does character exist less than The toner cartridge is basically 2 per a page and hasn t it been designed to print 2 000 sheets used long time with 5 image The A S is not guaranteed if using 2 Does recycle paper be used recycle paper 3 Has the life span of the Replace the developer when the developer ended life span of it has been ended 4 Is the movement Up and Down Clean the bushing part of the of the transfer roller smooth transfer roller 5 Is the HVPS normal If the problem is still not solved replace the developer 4 49 Service Manual Samsung Electronics Alignment amp Troubleshooting 9 Ghost 1 Description Ghost occurs at 75 5 mm intervals of the OPC drum in the whole printing Digital Printer Check and Cause Digital Printer Digital Printer 1 Bad contacts caused by contamination from uius Clean the terminals when toner particles between high voltage terminal in the main body and the contaminated by toner particles electrode of the Developer 2 Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the one in the HVPS board Occur in the developer cartri
85. solved by the above four directions 4 46 Service Manual Samsung Electronics Alignment amp Troubleshooting 6 Dark Image or a Black Page e Description The printed image is dark Check and Cause 1 No charge voltage in the engine board Clean the high voltage charge Perform DCU diagnostic code 01 terminal 2 Charge voltage is not 1 Check the state of the connector turned on due to the bad which connects the engine board contacts between power supply in the and HVPS side of the Developer and charge 2 Replace the HVPS if not solved terminal of HVPS by the above direction 1 and 2 Service Manual Samsung Electronics Alignment amp Troubleshooting 7 Uneven Density Description Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Print Density is uneven between left and right Check and Cause 1 The pressure force on the left and right springs of the transfer roller is not even the springs are Replace both the left and right damaged the transfer roller is improperly Spring Holder installed or the transfer roller bushing or holder is damaged 2 The toner level is not Occur in the developer cartridge even on the developer roller due to replace the developer and try to the bad blade print out Service Manual 4 48 Samsung Electronics Alignment amp Trouble
86. ter port Select ECP or SPP among SPP Normal ECP and EPP modes increase 3 Check the parallel port related printing speed SPP normal mode support 8 bit items in the CMOS Setup data transfer while ECP Mode transfer the 12 bit data If the regular font is not printing the cable or the printer driver may be defective Turn the PC and printer off and reboot the system 4 Reboot the system to print to print again If not solved double click the printer in my computer If the regular fonts are not printed this time again the cable must be defective so replace the cable with new one 4 38 Service Manual Samsung Electronics Alignment amp Troubleshooting 3 Abnormal Printing The printing is not working properly even when the cable has no problem even after the cable is replaced If the printer won t work at all or the strange fonts are repeated the printer driver may be defective or wrong setup in the CMOS Setup Check and Cause Description Select SPP Normal or ECP LPT Port the among 1 Set up the parallel port in the CMOS SETUP ECP EPP or SPP in the CMOS Setup Check the printer in My Computer to see if the printer driver is compatible to the present driver or delete the old driver if defective and reinstall the new driver 2 Printer Driver Error 3 Error message from insufficient memory The printing job sometimes stops or due to insufficient Delete the unnecessary f
87. the printing periodically They may not occur periodically Digital Pri Digital Printer Digital Printer Diaital Pri Check and Cause Clean each voltage terminal of the 1 Bad contacts of the voltage Charge Supply Develop and terminals to developer Transfer roller remove the toner particles and paper particles 2 The rollers of developer may be stained OPC Drum 75 5mm Clean the right Gear that has Charge Roller 37 7mm relatively small gap of the teeth Supply Roller 47 5mm ihe gre A Develop Roller 35 2mm If the malfunction persists Transfer Roller 46 2mm replace the developer Heat Roller 63 9mm Pressure Roller 75 4mm Service Manual Samsung Electronics 4 Black White Spot Description Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause 1 If dark or blurry black spots occur periodically he rollers in the Developer may be conta minated with foreign matte or paper particles Charge roller 37 7mm interval OPC drum 75 5mm interval 2 If faded areas or voids occur in a black image at intervals of 75 5 mm or black spots occur elsewhere the OPC drum surface is damaged 3 If a black image is partially broken the transfer voltage is abnormal or the transfer roller s life has expired 4 45 Service Manual Alignment amp Trouble
88. y Input Voltage Low Voltage 110 127VAC Low Voltage 110 127VAC High Voltage 220 240VAC High Voltage 220 240VAC Input Frequency 50 60HZ 3Hz 50 60HZ 3Hz Noise Printing 50dBA 51dBA Standby 26dBA 32dBA Max Monthly Volume Print 5000pages 10 000pages Duty Cycle Service Manual ED Samsung Electronics Product spec and feature Item A ML 2240 Average Monthly Print Volume 140pages 170pages Machine Life 50 000pages 50 000pages Temperature Operating 10 32 c 10 32 c Non Operating 20 40 20 40 c Humidity Operating 20 8096 20 8096 Non Operating 10 9096 10 9096 Altitude Max 8 200ft Max 8 200ft 2 1 2 2 Print Engine liem ML 1640 ML 2240 Print Speed 17ppm Ltr 16ppm A4 600 dpi 23ppm Ltr 22ppm A4 600 dpi Print Emulation GDI GDI Auto Emulation Sensing YES YES Font Type N A N A Number N A N A Power Save Yes 5 10 15 20 30 45 60 1 20min Yes 5 10 15 20 30 45 60 1 20min Resolution 600x600dpi 600x600dpi Toner Save Yes No dedicated button on CP Yes No dedicated button on CP FPOT From Stand by Approx 10 seconds From LSU ON A4 Approx 10 seconds From LSU ON A4 From Sleep mode Less than 40 seconds Less than 19 seconds Duplex Print N A N A Printable Area 208 x 273 mm Letter 208 x 273 mm Letter Halftone Gray Scale 128levels 128levels Memory Standard Max 8MB 8MB Std Max 8MB 8MB Std Max Type S

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