Text preview for : 06_Disassembly & Reassembly.pdf part of Samsung CLP-500 Samsung CLP-500 Service Manual
Back to : Samsung CLP-500 Service_M | Home
Disassembly and Reassembly
6
6. Disassembly and Reassembly
6.1 Cautions When Replacing Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-2) 6.1.1 Cautions when assembling and disassembling . . . . . . . . . . . . . . . . . page(6-2) 6.1.2 Cautions when handling PBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-2)
6.2 Parts for Maintenance and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-3) 6.2.1 Replacing cycle of parts for maintenance and repair . . . . . . . . . . . . page(6-3) 6.2.2 Printer Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-4) 6.3 Information Related in Disassembly and Assembly . . . . . . . . . . . . . . page(6-5) 6.3.1 Attentional item when disassembling or assembling . . . . . . . . . . . . page(6-5) 1) Disassemble of LSU Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-5) 2) Disassemble of ITB Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-5) 3) Custody of OPC Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-5) 4) Custody of Toner Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-5) 5) Disassemble of DEVE Drive Ass'y and Main Drive Ass'y . . . . . page(6-5) 6) Disassemble of Terminal Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-5) 7) Disassemble of Fuser Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-5) 6.3.2 Screw Used in the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-6) 6.3.3 Various Cover Open and Consumption Part' Disassembly . . . . . . . page(6-7) >> Consumption Parts' disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-7) 6.3.4 Replacing the Waste Toner Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-10) >> Disassembling the waste toner tank . . . . . . . . . . . . . . . . . . . . . . . . page(6-10) 6.4 Process of Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-12) 6.4.1 Top Cover and Front Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-12) 6.4.2 OP Panel Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-16) 6.4.3 Rear Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-17) 6.4.4 Duplex Cover Ass'y and Transfer Roller (T2) Roller . . . . . . . . . . . . . page(6-19) 6.4.5 Fuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-21) 6.4.6 Exit Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-23) 6.4.7 SMPS and Main PBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-24) 6.4.8 Fuser Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-27) 6.4.9 Main Drive Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-28) 6.4.10 HVPS (High Voltage Power Supply) . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-30) 6.4.11 DEVE Drive Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-32) 6.4.12 DEVE Drive PBA and DEVE Cover Open S/W . . . . . . . . . . . . . . . . page(6-34) 6.4.13 DEVE Drive Motor and ITB Cleaning Solenoid . . . . . . . . . . . . . . . . page(6-36) 6.4.14 Erase lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-37) 6.4.15 DEVE Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-38) 6.4.16 LSU Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-39) 6.4.17 DEVE OEM PBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-41) 6.4.18 Waste Toner Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-42) 6.4.19 MPT(Multi Purpose Tray) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-44) 6.4.20 Pick-Up Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-45)
Traninung Manual Samsung Electronics 6-1
Disassembly and Reassembly
6.1 Precautions when replacing parts
6.1.1 Precautions when assembling and disassembling
* Use only approved Samsung spare parts. Ensure that part number, product name, any voltage, current or temperature rating are correct. Failure to do so could result in damage to the machine, circuit overload, fire or electric shock. * Do not make any unauthorized changes or additions to the printer, these could cause the printer to malfunction and create electric shock or fire hazards. * Take care when dismantling the unit to note where each screw goes. There are 19 different screws. Use of the wrong screw could lead to system failure, short circuit or electric shock. * Do not disassemble the LSU unit. Once it is disassembled dust is admitted to the mirror chamber and will seriously degrade print quality. There are no serviceable parts inside. * Regularly check the condition of the power cord, plug and socket. Bad contacts could lead to overheating and firfe. Damaged cables could lead to electric shock or unit malfunction.
6.1.2 Preautions when handling PBA
Static electricity can damage a PBA, always used approved anti-static precautions when handling or storing a PBA. >> Precautions when moving and storing PBA
1. Please keep PBA in a conductive case, anti-static bag, or wrapped in aluminum foil. 2. Do not store a PBA where it is exposed to direct sunlight.
>> Precautions when replacing PBA
1. Disconnect power connectors first, before disconnecting other cables 2. Do not touch any soldered connections, connector terminals or other electronic parts when handling insulated parts.
>> Precautions when checking PBA
1. Before touching a PBA, please touch other grounded areas of the chassis to discharge any static electrical charge on the body. 2. Take care not to touch the PBA with your bare hands or metal objects as you could create a short circuit or get an electric shock. Take extra care when handling PBAs with moving parts fitted such as sensors, motors or lamps as they may get hot. 3. Take care when fitting, or removing, screws. Look out for hidden screws. Always ensure that the correct screw is used and always ensure that when toothed washers are removed they are refitted in their original positions.
6.1.3 Releasing Plastic Latches
Many of the parts are held in place with plastic latches. The latches break easily; release them carefully. To remove such parts, press the hook end of the latch away from the part to which it is latched.
6-2
Service Manual Samsung Electronics
Disassembly and Reassembly
6.2 Parts for Maintenance and Repair
6.2.1 Replacing cycle of parts for maintenance and Repair
Some of the parts in this printer have a limited life, shorter than that of the whole machine. These parts must be replaced periodically. The table below shows the interval at which these parts should be replaced. The table shows the life of each part, and is measured when using A4 paper. When servicing a machine always check the status of these parts using the control panel and ensure that parts are replaced at the appropriate times otherwise a general degradation in print quality will occur.
COMPONENT Toer Cartridge(Black) Toer Cartridge(Cyan) Toer Cartridge(Magenta) Toer Cartridge(Yellow) OPC Unit ITB Unit(T1 Roller) Waste Toner Tank Fuser Unit Transfer Roller(T2 Roller)
REPLACEMENT CYCLE intial(2,000 pages@5% coverage) replacement(7,000 pages@5% coverage) intial(1,500 pages@5% coverage) replacement(5,000 pages@5% coverage) intial(1,500 pages@5% coverage) replacement(5,000 pagse@5% coverage) intial(1,500 pages@5% coverage) replacement(5,000 pages@5% coverage) mono : 50,000 pages color : 12,500 pages mono : 50,000 pages color : 12,500 pages 3,000 Images simplex : 100,000 pages duplex : 50,000 pages simplex : 50,000 pages duplex : 25,000 pages
REMARK User replace User replace User replace User replace User replace User replace User replace Engineer Engineer
* Page: Counted value based on sides of paper printed (Duplex = 2 pages). * Image: Counted value based on printed monochrome images. * When printing a color section 1 page = 4 images. (i.e. each side is made up of 4 color images)
The life span of each of these parts is stored in memory. The amount of each 'life' used can be checked at any time using the control panel. When a part is replaced it is necessary to reset the 'life used' that is stored in memory. * How to initialize a the value of part's life span: From the control panel, select the following items in order:
Menu-Setup - Maintenance - Check other - (Select a desired part) - Reset
Service Manual Samsung Electronics
6-3
Disassembly and Reassembly
6.2.2 Printer Cleaning
A printer should be regularly cleaned, especially if it is used in a dusty environment. This will ensure that print quality remains high and failure due to contamination of printing services is less likely to occur. * Clean the printer with a soft, lint free, cloth dipped in a "Recommended cleaner" "Recommended cleaner" can be purchased from our service center. (where available) * Do not touch the transfer roller when cleaning the inside of the printer. Grease and oils from the skin will contaminate the surface and reduce print quality. * Do not touch transfer roller when cleaning inside of machine. If transfer roller gets dirty, printing quality could be low. * Please refer to the User Manual for cleaning instructions.
6-4
Service Manual Samsung Electronics
Disassembly and Reassembly
6.3 Information Related to Disassembly and Assembly.
6.3.1 Special service parts
Never disassemble or adjust the items mentioned, a stock of these items should be maintained.
1) Disassembly of the LSU unit
There are no serviceable parts inside the LSU. Alignment of the mirrors is critical. Opening the LSU will allow dust into the laser and significantly reduce print quality. It is very dangerous to operate or service a machine with the LSU open or system interlocks disabled. Exposure to laser radiation can cause blindness.
5) Disassembly of DEVE drive ass'y and the main drive ass'y
The alignment of the drive mechanism is critical and it has been set up in factory using a jig and a driving gear. It is adjusted for the best gearing alignment. If the motor is disassembled alignment would not be maintained and this could cause operational noise and image problems: image alignment and toner distribution may be affected.
2) Disassembly of the ITB unit
Do not disassemble the ITB. The alignment of the home sensor is critical and is set up in the factory on a special jig. Incorrect re-assembly will cause print quality degradation.
6) Disassembly of terminal parts
Do not adjust the variable resistors on the PBA. They have been already adjusted in the factory.
3) Care of the OPC unit
If an OPC unit is exposed to direct sunlight for a long time the parameters and response of the electrostatic surface are changed causing image transfer and print quality issues. Also there is no protective shutter on the OPC drum to prevent scratching Please take extra care to ensure the OPC drum is protected from sunlight and physical contact when servicing the machine.
7) Disassembly of the fuser unit
- The fuser melts toner onto the paper at a high temperature: therefore, you need to take special care not to get burned by a hot fuser. When removing the fuser from a set that has recently been operating you need to take extra care. - Do not touch an AC line (Copper contact) on a main frame even after removing the fuser.
4) Care of the Toner cartridge
Toner cartridges contain an extremely fine powder. Please keep toner cartridges away from children. The toner powder contained in the toner cartridge may be harmful and if swallowed you should contact a doctor. Take care not to spill toner spillages should be cleaned with a vacume cleaner and washed in could water (hot water sets the toner). Do not touch the developer roller surface as contamination will reduce print quality. Take care not to damage the roller's surface when installing or removing a toner cartridge.
Service Manual Samsung Electronics
6-5
Disassembly and Reassembly
6.3.2 Screws used in the printer
The screws listed in the table below are used in this printer. Please ensure that, when you disassemble the printer, you keep a note of which screw is used for which part and that, when reassembling the printer, the correct screws are used in the appropriate places.
NO S1 DESCRIPTION SCREW-MACHINE SEC CODE 6001-000485 SPEC 2.6*4, GOLD NO S11 DESCRIPTION SCREW-TAPTITE SEC CODE 6003-000269 SPEC 3*6, GOLD
S2
SCREW-TAPPING
6002-000115
4*15, GOLD
S12
SCREW-TAPTITE
6003-001001
3*8, BLACK
S13 SCREW-MACHINE S3 SCREW-TAPPING 6002-000175 3*8, GOLD
6001-000568
3*8, SILVER
S14 S4 SCREW-TAPTITE 6002-000308 2.6*6, GOLD
SCREW-TAPTITE
6003-001256
4*10 SILVER
S15 S5 SCREW-TAPTITE 6003-000119 3*8, BLACK
SCREW-TAPTITE
6003-000261
3*6, GOLD
S16 SCREW-MACHINE S6 SCREW-TAPTITE 6003-000152 2*10, GOLD
6003-001068
2*16, BLACK
S17 S7 SCREW-TAPTITE 6003-000179 3*6, GOLD
SCREW-TAPTITE
6003-000301
4*6, GOLD
S18 S8 SCREW-TAPTITE 6003-000196 3*10 SILVER
SCREW-SPICIAL
6009-001396
3*10, BLACK
S19 S9 SCREW-TAPTITE 6003-000266 3*6, GOLD
SCREW-TAPTITE
6003-000008
4*6, SILVER
S10 SCREW-ASS'Y MACH
6006-001193
3*6, GOLD
6-6
Service Manual Samsung Electronics
Disassembly and Reassembly
6.3.3 Opening Covers and replacing Consumable parts
This section shows you how to open the covers (front cover, DEVE cover, exit cover, and duplex cover) and how to remove and replace the consumable parts (toner cartridge, ITB unit, and OPC drum).
>> Consumable parts removal
1) Pull the side handle to open the DEVE cover and then press down firmly until the toner cartridges are ejected.
Pull
Caution: Before opening the exit cover, completely open the DEVE cover (eject the toner cartridges) 2) Removing a toner cartridge (K, Y, M, and C)
Black Toner Cartridge Yellow Toner Cartridge Margenta Toner Cartridge Cyan Toner Cartridge
Caution: * Take care not to damage the rollers. * Keep the toner cartridge on a flat surface.
Service Manual Samsung Electronics 6-7
Disassembly and Reassembly
3) Open the exit cover by pressing the cover open button.
Exit Cover
Push
Deve Cover
Caution: Before opening the exit over completely open the DEVE cover until it is at right angles to the main frame and the toner cartridges are ejected 4) Remove the ITB unit by releasing the ITB lock levers on both sides of the unit.
Lever
Lever
ITB Unit
6-8
Service Manual Samsung Electronics
Disassembly and Reassembly
5) Remove the OPC drum by carefully lifting the unit using the handle provided. Take care to ensure that the OPC drum surface is not scratched or damaged. Do not touch the surface of the drum when lifting the drum handle or when removing the drum.
OPC Drum
Caution: The surface of the OPC drum could be damaged if the OPC drum is exposed to direct sunlight for more than 5 minutes.
Service Manual Samsung Electronics
6-9
Disassembly and Reassembly
6.3.4 Replacing the Waste Toner Tank
>> Removing the waste toner tank
1) Push the top corners of the front cover to release the cover catches.
PUSH
2) Lift the hook at the top of the waste toner tank and gently pull the top edge of the waste tank forward. Lift the tank out.
PULL
Caution: Be careful not to let toner spill from the waste toner tank.
6-10 Service Manual Samsung Electronics
Disassembly and Reassembly
3) Remove the Toner Caps from the side of the tank and fit them to the tank inlets as shown below
Toner Cap
4) Fit a new waste toner tank.
Service Manual Samsung Electronics
6-11
Disassembly and Reassembly
6.4 Disassembly Procedure
6.4.1 Top cover and Front cover
1) Remove the cassette.
Cassette
2) Open all of the covers in the following order:- Duplex cover - DEVE cover - Exit cover (Refer to 6.3.3)
Exit Cover
Deve Cover
Duplex Cover
6-12
Service Manual Samsung Electronics
Disassembly and Reassembly
3) Release 2 screws (3*10 silver).
Top Cover
Screw
Screw
4) Take out the Top Cover as shown below.
Service Manual Samsung Electronics
6-13
Disassembly and Reassembly
5) Push both of the top corners to release the catches and open the front cover and then remove the waste toner tank. (Refer to 6.3.4)
PUSH
6) Release 7 screws (3*10 silver) located inside the front cover. Release 2 screws (3*10 silver) located on the top of the front cover.
Screw Screw
Screw
Screw
Screw
Screw
Screw Screw Screw
6-14
Service Manual Samsung Electronics
Disassembly and Reassembly
7) Release 2 hooks on the right and the left side with a flat bladed screwdriver and then remove the front cover. Take care to disconnect one harness connected to the frame.
Hook
Hook
Service Manual Samsung Electronics
6-15
Disassembly and Reassembly
6.4.2 OP Panel Ass'y
>> Before disassembling it: Remove the front cover. (Refer to 6.4.1)
1) Release 3 screws ('A' below 3*8 black) and take out the OP panel ass'y. 2) Release 4 screws ('B' below 3*8 black) from the Panel PBA and remove the panel PBA. 3) Release 2 screws ('C' below 3*6 gold) from the LCD and then take out the LCD.
C A
Screw Screw Screw Screw Screw Screw Screw
B
B A
Screw Screw
A
A : OP Panel Screw, 3 * 8 Black B : Panel PBA Screw, 3 * 8 Black C : LCD Screw, 3 * 6 Yellow
6-16
Service Manual Samsung Electronics
Disassembly and Reassembly
6.4.3 Rear Cover
>> Before disassembling it:
*Open the duplex cover, the DEVE cover and the exit cover. (Refer to 6.3.3) Remove the top cover. (Refer to 6.4.1) 1) 1) Remove 10 screws. A: Top 2 EA (3 * 10 Silver) B: Side 3 EA (3 * 10 Silver) C: Bottom 3 EA (4 * 10 Silver) D: Rear 2 EA (3 * 10 Silver)
A
Screw Screw Screw
D
Screw
B
Screw Screw
Screw Screw Screw
Screw
C
Service Manual Samsung Electronics
6-17
Disassembly and Reassembly
2) Take out the Rear Cover as shown below.
6-18
Service Manual Samsung Electronics
Disassembly and Reassembly
6.4.4 Duplex Cover Ass'y and Transfer Roller (T2)
>> Before disassembling it:
* Open the duplex cover, the DEVE cover and the exit cover. (Refer to 6.3.3) * Remove the front cover and top cover. (Refer to 6.4.1) * Remove the rear cover. (Refer to 6.4.3)1) 1) Release 2 hinge screws (3*10 silver) - one on each side of the duplex unit.
Screw
2) Remove the duplex cover ass'y by pulling it in the direction shown by the arrows in A and B below. * A: Lift up the left side section. * B: Remove the duplex cover ass'y by pulling the right side section towards the left.
A
Duplex Ass'y
A
B
B
Service Manual Samsung Electronics
6-19
Disassembly and Reassembly
3) Release 4 hooks on the right and left side with a flat bladed screwdriver and then remove the duplex ass'y.
Hook Hook
Duplex Ass'y
Hook Hook
4) Remove the transfer roller by turning the bush on each end of the roller
Duplex Ass'y
Transfer Roller
6-20
Service Manual Samsung Electronics
Disassembly and Reassembly
6.4.5 Fuser
1) Open the DEVE cover
Pull
Caution: Before opening the exit cover, completely open the DEVE cover until it is at right angles to the main frame and the toner cartridges are ejected 2) Open the exit cover.
Exit Cover
Push
Deve Cover
Service Manual Samsung Electronics
6-21
Disassembly and Reassembly
3) Release 5 screws (3*10 silver) and then remove the harness cover.
Screw
Screw
Harness Cover
Screw Screw Screw
4) Remove one harness.
Harness
5) Remove the fuser by holding both sides of the fuser and then pulling the fuser upwards.
6-22
Service Manual Samsung Electronics
Disassembly and Reassembly
6.4.6 Exit Cover
>> Before disassembling it:
* Remove the front cover (Refer to 6.4.1) * remove the rear cover (Refer to 6.4.3) * remove the duplex cover (Refer to 6.4.4.) 1) Remove the E-ring and the hinge pin by using a flat bladed screwdriver.
E-Ring Hinge Pin
2) Remove the exit cover.
Service Manual Samsung Electronics
6-23
Disassembly and Reassembly
6.4.7 SMPS and Main PBA
>> Before disassembling it
*Remove the rear cover (Refer to 6.4.3) 1) Release 5 screws (3*6 machine screw, gold) from the main PBA bracket.
Screw Screw
Screw
Main PBA Bracket
Screw
Screw
2) Release 2 screws (3*10 machine screw, silver) connected to the main PBA parallel port and then remove the main PBA bracket
Screw
Screw
6-24
Service Manual Samsung Electronics
Disassembly and Reassembly
3) Release 5 screws from the SMPS. Release one screw (3*10 silver) from the harness guide. A: Right side 3EA (3 * 6 Gold) B: Left side 1EA (3 * 10 Silver) C: Bottom 1EA (4 * 10 Silver)
Harness Guide
Screw
Screw
A A
Screw
B
Screw
SMPS
Screw
C
Screw
4) Remove 4 harnesses from the SMPS.
CON4 CON3 CON4 CON3
CON1
CON2 CON1 Fuse CON2
Service Manual 6-25
Samsung Electronics
Disassembly and Reassembly
5) Remove all harness connected to the main PBA. 6) Release 5 screws (3*6 machine screw, gold) from the main PBA and then remove the main PBA.
Screw
Screw
Screw
Main PBA
Screw Screw
EXIT CN19 DUPLEX CN24
CN17 WASTE TONER CN15 TH3 CN11 PTL
CN10 ITB CN7 CN4
HVPS PANEL
T2 HOME CN26
BLDC1 CN27
FSR_ROLL CN28 FUSER_FAN CN29
CN9 NIC
SMPS CN30
USB
MP EMPT CN30 MP SOL CN32 FEED CN33
CN1
Parallel Port
PICK_UP CN25 CLT_FEED CN23 EMPT CN21
CN16 SCF
CN12 LSU CN6 OPC KEY
CN5
DRIVER
CN14 LSU SW CN8
EASER
CN35 LSU_FAN
6-26
Service Manual Samsung Electronics
Disassembly and Reassembly
6.4.8 Fuser Fan
>> Before disassembling it:
* Remove the top cover (Refer to 6.4.1) * Remove the rear cover (Refer to 6.4.3) * Remove the main PBA bracket. (Refer to 6.4.7) 1) Release 3 screws (3*10 silver) remove one harness from the main PBA and then take out the fuser fan.
Screw
Screw
Fuser Fan
Screw
Service Manual Samsung Electronics
6-27
Disassembly and Reassembly
6.4.9 Main Drive Ass'y
>>Before disassembling it:
* * * * Remove Remove Remove Remove the the the the rear cover (Refer to 6.4.3) fuser (Refer to 6.4.5) SMPS (Refer to 6.4.7) fuser fan (Refer to 6.4.8)
1) Remove all harnesses from the harness guides. 2) Remove the SMPS cover bracket.
Bracket-Cover SMPS
3) Look inside the OPC drum cavity and locate the T2 cam. Remove the washer using tweezers and then remove the T2 cam.
Cam-Drive Washer-Plain
6-28
Service Manual Samsung Electronics
Disassembly and Reassembly
4) Remove the washer using tweezers and then remove the OPC gear and pin. (The OPC gear can be found inside the printer after removing the OPC drum unit. Take care that the pin is not lost as you remove the gear.)
Pin-Drive
Gear-Drive
Washer-Plain
5) Remove the 3 harnesses Motor, Duplex solenoid and Feed Regi Clutch Release 6 screws (3*10 silver) and then take out the main drive ass'y.
Screw
Screw Screw Harness
Screw
Screw
Screw
Service Manual Samsung Electronics
6-29
Disassembly and Reassembly
6.4.10 HVPS (High Voltage Power Supply)
>>Before disassembling it:
* Disassemble the front cover & top cover (Refer to 6.4.1) * Disassemble the rear cover (Refer to 6.4.3) * Disassemble the main PBA bracket (Refer to 6.4.7.) 1) Remove one harness from the main PBA
CN7
HVPS
CHARGER SUPPLY
T1
T2
USB
CN1(to Panel)
Parallel Port
CN2(to Deve)
2) Remove one harness and 4 high-voltage harnesses from the HVPS.
Harness Harness
Red Black
Black Red
Harness
6-30
Service Manual Samsung Electronics
Disassembly and Reassembly
3) Remove 5 screws (3*6 machine screw, gold) and then remove the HVPS.
Screw
Screw
Screw
Screw
Screw
Service Manual Samsung Electronics
6-31
Disassembly and Reassembly
6.4.11 DEVE drive ass'y
>>Before disassembling it:
* Disassemble the rear cover (Refer to 6.4.3) * Disassemble the main PBA (Refer to 6.4.7) 1) Remove the main PBA shield and harness guide by releasing 5 screws (2 EA 3*6 machine screw, gold; 2 EA 3*10 silver, 1 EA 4*10 silver)
Harness Guide
Screw
3x 10 White
Screw Screw
3 x 6 Yellow
Main PBA Shield
Screw
Screw
4x 10 White
2) Remove the ground harness and the harness guide bracket by releasing 3 screws (2 EA 3*6 machine screw, gold: 1 EA 4*10 silver).
Screw
B
Screw
Harness Guide Bracket
Screw
4 x 10 White
6-32
Service Manual Samsung Electronics
Disassembly and Reassembly
3) Separate the harness from the DEVE motor.
Motor Harness
4) Release 5 screws (3*10 silver) from the DEVE drive ass'y. Remove 4 harnesses connected to the DEVE drive PBA and then remove the DEVE drive ass'y.
Screw
SUPPLY
Screw
Screw
Screw
Screw Harness
CLT_4TH CN5 CLT_3RD CN9
CLT-2ND CN4
CN8 CLT-1ST
Service Manual Samsung Electronics
6-33
Disassembly and Reassembly
6.4.12 DEVE drive PBA and DEVE cover open S/W
>>Before disassembling it:
* Disassemble the rear cover (Refer to 6.4.3) * Disassemble the main PBA (Refer to 6.4.7) * Disassemble the main PBA bracket (Refer to 6.4.7.2) 1) Release 1 screw (3*10 silver) and then take out the DEVE cover open S/W.
Screw
Deve Cover Open S/W
2) Remove all harnesses and 6 screws (3*10 silver) and then take out the DEVE drive PBA.
SUPPLY
Screw Screw
Screw
BLCD_DEV CN1 SOL_T1_CLN CN10
Screw
CN7 SOL-3RD CN2 SOL-2ND
SOL_1ST CN6 SOL_4TH CN3 CLT_4TH CN5 CLT_3RD CN9
CN1
Screw Screw
CLT-2ND CN4
CN8 CLT-1ST
6-34
Service Manual Samsung Electronics
Disassembly and Reassembly
3) Remove 4 high-voltage terminals.
Terminal
Terminal
Terminal
Terminal
Service Manual Samsung Electronics
6-35
Disassembly and Reassembly
6.4.13 DEVE Drive Motor ITB Cleaning Solenoid
>>Before disassembling it:
* * * * Disassemble Disassemble Disassemble Disassemble the the the the rear cover (Refer to 6.4.3) main PBA (Refer to 6.4.7) main PBA bracket (Refer to 6.4.7) DEVE drive motor. (Refer to 6.4.7)
1) Release 4 screws (3*6 gold) and then remove the DEVE drive motor.
Screw
Screw
Screw
Screw
2) Unplug one harness from the DEVE drive PBA and then remove the ITB cleaning solenoid.
ITB Solenoid
6-36
Service Manual Samsung Electronics
Disassembly and Reassembly
6.4.14 Erase Lamp
>> Before disassembling it:
* Remove all consumable parts (Toner cartridge, ITB unit, and OPC drum) (Refer to 6.3.3) * Disassemble the front cover and top cover (Refer to 6.4.1) * Disassemble the waster toner ass'y. (Refer to 6.4.18) 1) Release 2 screws (4*15 gold) and 2 clips located close to the DEVE cover hinge and remove the LSU cover: A Release one screw (4*10 silver) and then remove the lamp cover: B
Screw
Screw
Screw
B
A
2) Release 2 clips and lift the eraser lamp ass'y, remove one harness and then remove the erase lamp.
Erase Lamp
Service Manual Samsung Electronics
6-37
Disassembly and Reassembly
6.4.15 DEVE cover
>> Before disassembling it:
* Remove all consumable parts (Toner cartridge, ITB unit, and OPC drum) (Refer to 6.3.3) * Disassemble the front cover and top cover (Refer to 6.4.1) * Disassemble the LSU cover. (Refer to 6.4.14) 1) Remove 2 screws (3*10 silver) and then remove the DEVE open link guide.
Screw
Deve Open Link Guide
Screw
Deve Open Link
2) Separate the DEVE cover by pulling it in the direction of the arrow.
LSU Cleaner
Deve Cover
6-38
Service Manual Samsung Electronics
Disassembly and Reassembly
6.4.16 LSU unit
>> Before disassembling it:
* Remove the consumable parts (Toner cartridge, ITB unit, and OPC drum) (Refer to 6.3.3) * Disassemble the Deve cover. (Refer to 6.4.15) 1) Release 4 screws (4*10 silver). (Use a short length cross-head screwdriver.)
Screw
Screw
Screw
Screw
2) Release one screw (3*8 yellow). (Use a short length cross-head screwdriver.)
LSU Ground
Screw
Service Manual Samsung Electronics
6-39
Disassembly and Reassembly
3) Separate 2 harnesses and remove the LSU unit.
Harness Harness
6-40
Service Manual Samsung Electronics
Disassembly and Reassembly
6.4.17 DEVE OEM PBA
>> Before disassembling it:
* Disassemble the front cover and the top cover. (Refer to 6.4.1)
1) Separate one harness(CN1) from the HVPS and one harness(CN2) from the DEVE OEM PBA. Remove 6 screws (3*8 black) and then take out the DEVE OEM PBA.
Harness Screw Screw
Screw
Deve OEM PBA
Screw
Screw Screw
2) Remove 12 terminals.
Terminals
Service Manual Samsung Electronics
6-41
Disassembly and Reassembly
6.4.18 Waste toner ass'y
>> Before disassembling it:
* Disassemble a front cover and a top cover. (Refer to 6.4.1) 1) Release 6 screws (3*10 silver). * Upper part: 4 screws * Lower part: 2 screws
Screw
Screw
Screw Screw
Screw
Screw
2) Remove the waste toner ass'y by first reaching into the OPC cavity and lightly depressing the waste toner receiver whilst at the same time gently pulling the waste toner motor assy away from the set. Once the ass'y is released refer to the photograph and remove the ass'y.
OPC Lifter
Caution: * It is very likely that waste toner will be spilled when removing the waste toner ass'y.
Service Manual Samsung Electronics
6-42
Disassembly and Reassembly
3) Release one screw (3*10 silver) and then remove the sensor cover.
Screw
Service Manual Samsung Electronics
6-43
Disassembly and Reassembly
6.4.19 MPT(Multi Purpose Tray)
>> Before disassembling it:
* Disassemble all consumption parts (Toner cartridge, ITB unit, and OPC drum) (Refer to 6.3.3) * Disassemble the front cover and top cover (Refer to 6.4.1) * Disassemble the rear cover. (Refer to 6.4.3) * Disassemble the duplex cover. (Refer to 6.4.4) * Disassemble the SMPS & main PBA. (Refer to 6.4.7) 1) Release 4 screws (3*10 silver)
Screw
Screw
Screw
Screw
2) Release the 2 clips located underneath the machine (see photograph). Pull the MP Ass'y upward and release the assy.
Snap -Fit
Snap -Fit
Note : it is not possible to remove the assy at this stage, take care not to put excessive strain on the cable harness.
Service Manual Samsung Electronics
6-44
Disassembly and Reassembly
6.4.20Pick-UpAss'y
>> Before disassembling it:
*Disassemble *Disassemble *Disassemble *Disassemble *Disassemble *Disassemble *Disassemble all consumable parts (Toner cartridges, ITB unit and OPC drum) (Refer to 6.3.3) the front cover and top cover (Refer to 6.4.1) the rear cover. (Refer to 6.4.3) the duplex cover. (Refer to 6.4.4) the SMPS & main PBA. (Refer to 6.4.7) the Erase Lamp. (Refer to 6.4.14) the Waster Toner Ass'y (Refer to 6.4.18)
1) Undo 2 screws (3*10 silver) and remove the "Pick-up Solenoid". Then remove the plastic circlip which retains the Pick-Up Gear and also remove the gear wheel. Release the shaft retaining bearing.
Pick-Up Solenoid
Screw
Screw
2) Remove the 3 screws (4*10 silver) in the "Pick-up Ass'y"
Screw
Screw Screw
Pick-Up Ass'y
Traninung Manual Samsung Electronics
6-45
Disassembly and Reassembly
3) Remove the 3*8 black screw retaining the Guide Pick-Up plate. Using a small flat bladed screwdriver or similar tool force the brass ground plate off the retaining lugs and bend it upward slightly. Release the Eraser Lamp harness and paper Empty Sensor harness, these pass between the main engine frame and base frame and cannot be removed.
Guide Pick-Up Plate Ground Feed
Eraser Lamp Harness
Screw
4) Remove the "ACTUATOR-EMPY (JC72-00465A)" sensor arm and then take out the "Pick-up Ass'y" by lifting the right hand side and sliding the shaft from the frame.
6-46
Traninung Manual Samsung Electronics
Disassembly and Reassembly
No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Code
6003-000119 JC33-00007A JC61-00482A JC70-00359A JC70-00360A JC72-00463A JC72-00465A JC72-00719A JC72-00729A JC72-01076A JC72-01218A JC72-41191A JC72-41364A JC73-00149A MLC500-5538 MLC500-5542
Description
SCREW-TAPTITE SOLENOID-PICK UP SPRING ETC-PICK UP IPR-GROUND FEED IPR-GUIDE INPUT PMO-CAP CONNECTOR L PMO CAP CONNECTOR U PMO-ACTUATOR EMPTY PMO-SHAFT PICK UP PMO-GUIDE PAPER PMO-HOLDER ERASER PMO-BEARING SHAFT PMO-BUSHING_P/U,MP RPR-RUBBER PICK UP PBA-ERASER ASS'Y PBA-PAPER EMPTY ASS'Y
Qt'y
1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1
< Pick-Up Ass'y ExplodedView and Parts List >
Traninung Manual Samsung Electronics
6-47