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[ML-5510N/ ML-5510ND/ML-6510ND ML-5512ND/ML-6512ND Training (Mecha) Product Development Group 2 Samsung IT Solutions Business Jan. 14. 2011
Process • Installation of Option • Disassembly • Fault Diagnosis • Troubleshooting Contents
I. Process 1. Process Original Image Convert to Printing Language Electronic Signal DRIVER Convert to Bit Map image Restore to original image LSU Exposure Developing Charge Fusing Transfer
I. Process 2. Paper Path System Layout LSU Simplex Path Toner Duplex Path DRUM Fuser Manual
I. Process 3. Deve Process DevelopingMethod : 2-componentMagneticBrush Polymerase Toner Remained toner sensor: N/A Life: 80K Distinguish cartridges : by CRUMID OPC (Light-Sensitive Device) 1 Mag Roller 2 Supply Roller 3 7 4 Charge Roller 4 2 5 Cleaning Blade 3 1 5 6 Turbine Roller (Collecting waste toner) 6 2’nd Blade 7
I. Process 4. Toner • Life: 10K (CRU 20K/30K) • Developing Method : 2-component Magnetic Brush • OPC Cleaning : Collect residue toner with cleaning blade Distinguish TONER CARTRIDGE : by CRUMID
I. Process 5. Feeding Unit (Cassette) Feeding Method: Cassette Loading Basis : Center Loading Capacity : 520sheets (80g/㎡) Paper Sensing : Empty Sensor Paper-Size Sensor : Tact S/W (A4, Letter, A5, B5, State., Folio, Legal, Custom)
I. Process 5. Feeding Unit (Cassette) Retard Roller & Knock-up Lifting method - Improved multi-feeding and Jam issues - Easier Service: Simple Exchange of Pickup & Retard Roller Supporting Media - Weight: 60 ~ 163 g/㎡ - Size : Letter, Legal, Oficio, Folio, A4, JIS B5, ISO B5, Executive, A5, Statement, A6, Cardstock, Postcard, Custom[98.6x148.5mm(3.88"x5.85“)~216x356mm(8.5”x14")] - Support Special Paper: Envelope 50sheets (Monarch, No.10, DL, C5, C6, No.9)
I. Process 5. Feeding Unit (MP) Feeding Method: AUTO-COMPENSATOR PICK-UP Structure Loading Basis : Center Loading Capacity : 100sheets (80g/㎡)Paper Sensing : Empty Sensor Paper-Size Sensor : N/A
I. Process 5. Feeding Unit (MP) Retard Roller & Swing Type(ADF) - Improved multi-feeding and Jam issues - Easier Service: Simple Exchange of Retard Roller Supporting Media - Weight: 60 ~ 220 g/㎡ - Size : Letter, Legal, Oficio, Folio, A4, JIS B5, ISO B5, Executive, A5, Statement, A6, Cardstock, Postcard, Custom[76 x 127mm (3.0" x 5.0") ~ 216 x 356mm (8.5" x 14")] Pickup Forward Swing Type Retard
I. Process 6. Drive Supply power through Gears Supply power to OPC/DEVE/Feeding/Fuser part with 4 BLDCmotors Supply power to Exit/Duplex/Release Pressure(Fuser) with 3 Step motors Operate 1 DC motor In Toner-supplying mode Improve the image quality by operating separated drive for each OPC/DEVE/Feeding/Fuser part BLDC MOTOR (FUSER) STEP MOTOR (EXIT) BLDC MOTOR (FEED) BLDC MOTOR (DEVE) BLDC MOTOR (OPC) STEP MOTOR (FUSER Release) STEP MOTOR (DUPLEX)
Error Phenomenon Unstable rotating of Polygon Motor Polygon Motor Error Hsync Error No Hsync signal generated, Despite the stable rotation of Polygon Motor. I. Process 7. LSU Consisted of LD(Laser Diode) and Polygon Motor Control
I. Process 8. Fuser Life : More than 150,000sheets Halogen Lamp : Adjust the fusing temperature by heating Heat Roller : Teflon Coating Pressure Roller : Silicon 1 PR System Thermistor : Temperature Sensor Thermostat : Heat Cut-off Sensor Halogen Lamp Fuser unit
I. Process 8. Fuser Assembling Guide: Push the unit inside until 4 points (marked in red below) touch Frameand tighten Screws
Error Phenomenon Center temperature stays lower than 90℃ for 20 secs from Warm-up. Side temperature stays lower than 70℃ for 20 secs from Warm-up. Center temperature stays lower than 50℃ for 10 secs from Warm-up, and lower than 80℃ for 18 secs. Open Heat Error Low Heat Error Warm-up : After reaching 90℃, Center temperature stays lower than motor-start temperature for longer than 20 secs. Finishing Warm-up, Center temperature stays 15ADC lower than target for longer than 10 secs. Stand-by : 35ADC lower than target for longer than 10 secs. (Center) 60ADC lower than target for longer than 10 secs. (Side) Printing : 27ADC lower than setting for longer than 7 secs. (Center) 40ADC lower than setting for longer than 7 secs. (Side) Warm-up : Over 220℃ for 20 secs or over 230℃ for 3 secs.(Center / Side) Stand-by : Over 220℃ for 20 secs or over 230℃ for 3 secs.(Center / Side) Over the initial setting Center temperature of each environment for 3 mins.(Center / Side) Printing : Over 220℃ for 20 secs or over 230℃ for 3 secs.(Center / Side) Power Save : Over 220℃ for 20 secs or over 230℃ for 3 secs.(Center / Side) Over Heat Error I. Process 8. Fuser Consisted of Heat Lamp, Heat Roller, Pressure Roller , Thermistor, Thermostat
I. Process 9. Duplex Feeding Method: 2FEED-ROLLER+ 1 TIMING BELT Loading Basis : Side feeding Media Weight: 60~120g/m2MediaSize : A4, Ltr, Legal, Folio, Oficio Significant point: Paper size set-up available(A4/LTR)
PaperFULL Sensor I. Process 10. Exit Exit Method: Non-ContactRoller (Paper goes out in waved form) Capacity : 500sheets(80g/m2) Paper Sensing : PaperFull Sensor Paper Out in Wave
I. Process 11. Fan Harrierhas Fans in 4 places to control temperature of inside the Printer/LSU/SMPS/FDB/Print-out papers. 1) Function of FAN  Main(SMPS) FAN : blow-in, Feedback signal (Error displays on UI, when problem occurs.) -. Blow the external cold air into Fuser, Developer and SMPS in order to cool down SMPS and to prevent the heat of Fuser from affecting Developer.  LSU FAN : blow-out, Feedback signal (Error displays on UI, when problem occurs.) -. Blow the internal warmed air out of the printer.  REAR FAN : blow-out, Feedback signal (Error displays on UI, when problem occurs.) -. Let out the heat of Fuser, and cool down the papers printed-out and prevent steam.  FDB FAN : blow-out, No Feedback signal (No error shows on UI when problem occurs.) -. Let out the heat of FDB. 2) Operation of FAN  In ready mode -. Every Fan is off when the internal temperature is lower than 50℃. -. When internal temperature is over 50℃ right after printing job, MAIN(SMPS) Fan operates until the temperature gets lower than 50℃.  During warm-up or printing -. EveryFan operates. LSU FAN (right) FDB FAN (right) REAR-FAN (rear) MAIN(SMPS) FAN (left) Location of Fans  Main(SMPS) FAN – Left side of Printer  LSU FAN – Right side of Printer  FDB FAN – Right side of Printer  REAR FAN – Rear side of Printer
I. Process 12. CRU/FRU Information
I. Process 12. CRU/FRU Information ※Clean inside machine (paper dust or toner powder) after replace the consumable parts.
I. Process 13. Option Information
II. Installation of Option 1. SCF/HCF & STAND
II. Installation of Option 2. Mail Box/Finisher Mail Box Finisher
II. Installation of Option 3. Duplex (“N” Model)
II. Installation of Option 4. Memory/Wireless/HDD Memory Wireless HDD
II. Installation of Option 5. Maintenance Kit
III. Disassembly Purpose Ⅰ. Learn how to disassemble printer Ⅱ. Understand the function of each part Ⅲ. Understand the basic structure of main parts
III. Disassembly 1. Cover Unit Open Top Cover and removeToner, Imaging Unit. Open WTB Cover and removeWTB. Remove Screws following the order below.
III. Disassembly 1. Cover Unit ※Open the rear cover about 30 degrees (because of D-cut direction) and then lift up the right side of rear cover.
III. Disassembly 1. Cover Unit
III. Disassembly 2. Fuser Unit Remove Cover Rear. Remove Duplex Unit. Loosen Screws a little with things like coins,then remove Screws by hand.
III. Disassembly 3. Main PBA & Engine PBA Remove Cover Right. Remove connector from Main PBA & Engine PBA. Remove Screws following the order below, then removePBA. Main PBA Engine PBA ※It would be more easy unplug all harness connectors before unfasten screws.
III. Disassembly 4. Main Drive Unit Remove Cover Right. Remove Engine PBA. Remove 5 Screws and remove Main Drive unit.
III. Disassembly 5. Feed Drive Unit Remove Cover Right. Remove Engine PBA. Remove 2 clutches like below picture. Remove 5 Screws and remove Main Drive Unit. Remove Feed Drive Unit and Clutch. ※Be careful the direction of bracket-clutch during assemble.
III. Disassembly 6. Fuser Drive Unit Remove Cover Right. Remove 2 Screws and removeMain PBA Unit from Frame. ※Spring
III. Disassembly 7. Duplex & Lift Drive Unit Remove Cover Right andEngine PBA. Remove Duplex & Lift Motor.
III. Disassembly 8. Fuser Release Drive Unit Remove Cover Left andCover Rear.(Duplex Unit, as well) Remove 3 Screws and removeFuser Release Motor. ※Open the Cover-WTB(①)and then remove the Cover-Left(②).
III. Disassembly 9. Fuser Drive Board (FDB Unit) Remove Cover Right and Main PBA.
III. Disassembly 10. LSU Fan Remove Cover Right. Remove 1 Screw and removeLSU Fan. ※Be careful the FAN direction (Blow-out)
III. Disassembly 11. LSU Unit Remove Cover Top. (Refer to ‘12. Exit unit’ section) Remove Harness Cable. Remove 4 Screws(M4*L10). ※Screw Type: M4*L10
III. Disassembly 12. Exit Unit Remove every Cover. Remove the Exit unit following the order below.
III. Disassembly 13. Housing Terminal & WTB Frame & Main Fan Remove Cover Left. Follow below pictures. Main Fan WTB Frame Housing Terminal ※Be careful the FAN direction (Blow-In)
III. Disassembly 14. SMPS & HVPS PBA Remove every Cover. Remove Fuser unit, and remove SMPS & HVPS Unitfollowing below.
III. Disassembly 14. SMPS & HVPS PBA
III. Disassembly 15. 3*5 Belt Remove Cover Left. Remove the Belt following the order below. 1 2 ※Push to the left(①) and lift up(②).
III. Disassembly 16. Transfer Roller Open Cover Top. Unlock the Locking of Holder, and take offRoller. ※Caution for contamination of Transfer Roller. (Oil, Duty, Moisture, etc.)
III. Disassembly 17. Registration Unit Remove Cover Right and then remove the regi clutch. Unfasten 4 screws and lift up registration unit. ※Caution Actuators.
III. Disassembly 18. Actuator Regi & Feed Remove the actuator cover. Disassemble the actuators.
III. Disassembly 19. External Temperature Sensor Remove Cover Right. Remove 1 Screw and removeSensor.
III. Disassembly 20. MP Unit Remove Cover-Right, Cover-Front. Remove 4 Screws and pull out Harness, and removeMP Unit.