Samsung Scx-5835fn Training Manual.pdf 2s13

SCX-5835FN (Elbert-II) Training Manual Aug. 2008

MechanicalTechnical book Rev 0.1 1 / 67

Agenda I.

General Specification

II.

Process

III.

Disassembly

IV.

Troubleshooting

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Ⅰ. General Specification

Objectives

Ⅰ. Understanding the General specifications of SCX-5835FN Ⅱ. Comprehension of the feature of major specs.

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Ⅰ. General Specification

Overall Spec. Feature

SCX-5835FN

Size (WDH)

472x478x543mm

Weight (Net)

22.2 kg

Power Consumption

Printing mode

750 W

Power save mode

25 W

Power down mode

1W

Printing/Copy

52/54 db

Standby

39 db

Noise

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Ⅰ. General Specification

Printing Printer Type

Mono - Laser Printing

Printing Speed

Simplex : 33 ppm (A4) / 35ppm (LTR) Duplex : 17 ipm (A4) / 18 ipm (LTR)

Resolution

1200dpi effective

Power save Mode

23.5 sec

Standby Mode

8.5 sec

FPOT

Warm up Time (Cold start)

Toner Cartridge

50 sec

Consumable

10K pages

In-box

4K pages 5 / 67

Ⅰ. General Specification

Scan Method

Color CCDM

Resolution

600 x 600 dpi (Optical)

Minimum Scan Line Time

0.73ms(Color) / 0.365(Mono)

Copy [ Simplex ] SDMC : 33m / MDSC : 29m Copying Speed (A4) [ Duplex ] 1-2 : 17ipm / 2-2 : 13ipm FCOT

9.5 sec - Platen 11.5 sec - DADF

Zoom Rate

25% ~ 400% - Platen 25% ~ 200% - DADF 6 / 67

Ⅰ. General Specification

Fax Modem Speed

33.6Kbps

Transmission Speed

App. 3.0 sec per page

Memory

80GB HDD

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Ⅰ. General Specification

Paper Handling

Capacity (75gr/20 lb)

Main Tray

500 sheets (80gsm)

Manual Tray

50 sheets (80gsm)

Optional Tray

N/A 250 sheets (face-down) 1 sheet (face-up)

Capacity of Output Rear output tray is available for the special media such as envelope, label, postcard, transparency and so on.

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Ⅰ. General Specification

Option Optional Feeder

500 sheets (80gsm)

Duplex Feeder (Factory option)

Letter, A4, Folio and Legal

Memory

Elbert2 provides one Extension Slot for extending Memory

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Ⅱ. Process

Objectives Ⅰ. Comprehension of System Layout Ⅱ. Studying the printing process and electro-photographic process Ⅲ. Understanding the basic structures and operating principle of each parts

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Ⅱ. Process 1. System Layout

DADF PART

ENGINE PART 11 / 67

Ⅱ. Process 2. Printing Process (General)

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Ⅱ. Process

3. Mechanical Parts 3-1. Feeding Section  Feeding type : Center Loading Cassette Type  Feeding capacity : Main 500 Sheets (80gsm Standard Paper) MPF 50 Sheets (80gsm Standard Paper) / 5 Sheets (Special Media)  Paper detecting sensor : Photo Interrupter

Cassette

MPF

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Ⅱ. Process

3. Mechanical Parts 3-2. Transfer Roller Assy Looks similar to Elbert’s but different. Do not be confuse. (There is not Gear-Transfer for Elbert-II model.)  Life span : 100,000 images

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Ⅱ. Process

3. Mechanical Parts 3-3. Driver Assy  Main motor ass’y (BLDC) : Paper Pickup, Paper Feeding, Toner Cartridge  Exit motor ass’y (STEP) : F Unit, Letting out paper or Putting back paper  Duplex motor ass’y (STEP) : Paper Transferring for duplex printing

Duplex Exit

Main

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Ⅱ. Process

3. Mechanical Parts 3-4. F Assy 3-4-1. F Detail  Fusing type : Thermal fixing with a couple of one heat roller and two pressure rollers  Hear roller : ø28.3, Anodized, singel halogen lamp, thick brown color coating  Pressure roller 1 : ø16.0 : PFA tube, Electrically conductive  Pressure roller 2 : ø20.0 : LSR+PFA, Electrically conductive  Single thermistor and a pair of thermostat  A ball bearing at each end of heat roller (total amount; two)  Jam removal lever / F door open for jam removal  Life span : 80,000 pages

Thermistor

Thermostat

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Ⅱ. Process

3-4-2. F Error

Error message is displayed. -Open Heat Error -Low Heat Error -Over Heat Error

“Over Heat Error“ Or “Low Heat Error”

Turn off the power and stay for 5minutes.

Turn on the printer.

Is the same message shown again?

No

OK

Yes End Samsung CC

SVC Engineer Replace the F Assy

Is the same message shown again?

Is the same message shown again?

Replace the SMPS

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Replace the Main PBA

Ⅱ. Process

3-4-3. F Disassembly 1. Turn off the Printer and unplug the power cable. 2. Open the Rear Cover.

4. Unfold the Guide-Output (Black mold part).

3. Unfasten the strap.

4. Unscrew 4 screws on the F.

5. Check the F Assy whether defective or not (go to the next page)

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Ⅱ. Process 3-4-4. Defective Checking • JC96-05064A : ELA UNIT-F 220V • JC96-05063A : ELA UNIT-F 110V

c

d

• 4712-001031 : THERMOSTAT • 1404-001364 : THERMISTOR-NTC ASSY

a

b

Thermostat (1)

(2) Halogen Lamp

Thermostat

1. Measure the resistance value between ⓐ and ⓑ - Defective : infinite - Non-defective : Approx. 0 (zero) ~ 1 ohm 2. If defective, replace the new thermostat. - Unscrews 2 screw ⓐ and ⓑ

1. Measure the resistance value between ⓒ and ⓓ - Defective : infinite - Non-defective : Approx. 0(zero) ~ 10 ohm 2. If defective, replace the new f ass’y

(3) Thermistor e

f

If you replace the thermistor , unscrew here

1. Measure the resistance value between ⓔ and ⓕ - Defective : infinite - Non-defective : Approx. 330 ~ 360 (K)ohm 2. If defective, replace the new thermistor. - Unscrews 1 screw.

※ Thermistor – Temperature-Measuring Device ※ Thermostat – Critical Temperature-Detecting Device

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Ⅱ. Process

3. Mechanical Parts 3-5. LSU  Laser diode : Dual type  Same as Elbert  Protecting glass for beam slot  Safety inter-rock switch against beam emission while front cover open

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Ⅱ. Process

3. Mechanical Parts 3-6. DADF  Faster ADF than Elbert : 30 m/LTR (MDSP)  Solenoid clutch  Duplex Auto Document Feeder : Capacity 50 Sheets

 Document Align : Center (with document guide)

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Ⅱ. Process

3. Mechanical Parts 3-7. Flatbed Scanner  Enhanced color CCD(Charge Coupled Device) : Kepler Middle with white LED light  Minimum Scan Line Time: 0.73ms(Color) / 0.365(Mono)  Scan Resolution : Optical 600 x 600 DPI

 Color Depth : 36 Bits (Internal), 24Bits (External)

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Ⅱ. Process

3. Mechanical Parts 3-8. OPE  LCD : 7" Color LCD ( 800 by 480 line color TFT LCD )

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Ⅱ. Process

3. Mechanical Parts 3-9-1. Toner Cartridge(1)  Capacity : 4,000 images (in box) / 10,000 images (After-Market) [ ISO19752 pattern on A4 paper and 68°F (50 %) ~75 °F (60 %) ]

 CRUM with encryption  Non-magnetic 1 element ing method  Toner: Non-magnetic 1 element shatter type toner (Average Dia. 8 ㎛ )

Frame- CR- Hol der PCB-CRUM Cl eani ng Bl ade

CR

Doctor Bl ade

Cap-Toner Frame- Cl eani ng

Drum OPC

DR

SR

Agi tat or1

Agi tat or2

Frame- Deve

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Ⅱ. Process 3-9-2. Toner Cartridge(2)  OPC Cleaning: Rake used toner into waste toner box with cleaning blade  OPC Drum protecting Shutter : Do not have

OPC drive gear Cleaning blade

OPC drum Waste toner box OPC Drum (no protecting shutter)

Waste toner box

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Ⅱ. Process 3-9-3. Toner Cartridge(3)  Method of toner supply : Toner is transported to the developing roller by supply roller.  Regulating toner level : SUS Blade (Doctor Blade)

Sus blade

Supply roller Developing roller

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Ⅱ. Process 3-9-4. Components layout Toner Cartridge

CR cleaning CR

Upper Frame Doctor Blade

CRUM

Cleaning Blade Agitator1 Cleaning Frame

OPC

DR

SR

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Agitator2

3-9-5. Applied voltage & measurement Gnd

Gnd

Gnd (-)1350V@NN

(-)390V

(-)590V

(-)1300 ~ (-)1450V

C/R D/R Voltage Measurement

D/R OPC

(+)1300V@NN

T/R

S/R Voltage Measurement 28 / 67

Gnd

(+)400 ~ 5000V

S/R

Ⅲ. Maintenance 3-9-6. Redistributing Toner

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Ⅱ. Process

3. System Layout 3-10. Duplex Unit  A4, Letter, Folio, Oficio and Legal  Recommended to use heavier paper than 75gsm for duplex printing  Standard

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Ⅱ. Process

3. System Layout 3-11. Optional Feeder (SCF)  Capacity : 500 sheets (80gsm)  Available paper size : A5, Executive, JIS B5, ISO B5, A4(210x297mm), Letter(216x279mm), Legal, Folio, Oficio

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Ⅱ. Process

4. Electrical Parts

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Ⅱ. Process

4. Electrical Parts 4-1. Main Board

4-1. Main Board Scan MOTIC

Flash Memory

CHORUS3(ASIC) USB IC

DDR2 DIMM

Network IC

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Ⅱ. Process

4. Electrical Parts

-2. Installing Printer Memory

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Ⅱ. Process

4. Electrical Parts

-3. HVPS

SUPPLY -630±3% DEV -430±3%

THV +1300±3% -1200±3%

OPC -130±15.4% MHV -1350±3%

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Ⅱ. Process

4. Electrical Parts

-4. SMPS

 F

 5V  24V

Fuse AC

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Ⅱ. Process

4. Electrical Parts

-5. PBA-DRIVER

Exit motor

A3983SLP (Duplex motor)

 Duplex motor A3983SLP (Exit motor)

Main Fan LSU Fan Duplex motor

SMPS

SMPS fan

→ SMPS Fan → Exit motor LSU fan

 Exit motor / Duplex motor  Main FAN / LSU FAN / SMPS FAN  SMPS  MAIN PBA

 MAIN PBA

 SMPS

→ main Fan

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Ⅱ. Process

4. Electrical Parts  DADF motor

 P_size sensor

-6. PBA-DADF

→ Exit solenoid

A3983SLP

 MAIN PBA

(DADF motor)

COVER OPEN sensor  Regi solenoid

 P_DET sensor

P_REGI sensor

 P_POS sensor

→ Pick Up solenoid

 DADF motor  DADF P_POS / DADF P_REGI / DADF P_DET sensor DADF Cover OPEN / P_SIZE sensor  DADF Exit solenoid / DADF Pick up solenoid 38 / 67

Ⅱ. Process

4. Electrical Parts

-7. PBA-OPE_MAIN  OP_KEY_SUB

 MAIN PBA

MAIN IF MAIN IF (POWER) (USB)

NOR FLASH 32MB

S3C2413C

OP_KEY_SUB

OP_KEY

LCD INTERFACE

TOUCH SCREEN BUZZER

 LCD MAIN IF

BACK LIGHT

 LCD BACK LIGHT IF  LCD TOUCH IF

 OP_KEY_SUB

DDR1 SDRAM 32MB

 LCD  OP_KEY_SUB / OP_KEY 39 / 67

DEBUG

JTAG

→ OP_KEY

Ⅱ. Process

4. Electrical Parts

-8. PBA-OPE_KEY_SUB

 MAIN PBA

 OPE_MAIN

 OPE_MAIN USB2415-AEZG (USB HUB IC)

 USB DIRECT

 USB HUB IC(USB2415-AEZG)  LEFT side KEY and LED of OPE -. LED : MACHINE STATUS GREEN and RED -. KEY : MACHINE SETUP KEY, JOB STATUS 40 / 67

Ⅱ. Process

4. Electrical Parts

 OPE_MAIN

-9. PBA-OPE_KEY

 RIGHT side KEY and LED of OPE -. LED : POWER SAVE / INTERRUP PRINTING -. KEY : INTERRUPT / CLEAR ALL / STOP CLEAR / ON HOOK / REDIAL-PAUSE / CLEAR / NUMBER 1 ~ 0 41 / 67

Ⅱ. Process

4. Electrical Parts

-10. PBA-FAX  MAIN PBA

 LINE SI2435  EXTERNAL

 SiLAB modem

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Ⅱ. Process

4. Electrical Parts

-11. PBA-SCF(Option)  Paper empty sensor → MAIN PBA S3F443FX  BLDC

 solenoid

 BLDC / Solenoid

 Paper empty sensor

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Ⅱ. Process

Review

Ⅰ. What is the function of paper feeding sensor ? Ⅱ. Do you know life span of Transfer Roller? Ⅲ. Do you know the function of Thermistor and Thermostat?

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Ⅲ. Disassembly

Objectives

Ⅰ. Studying the method of disassemble parts from a complete whole Ⅱ. Comprehension of the function of each parts Ⅲ. Understanding the basic structures of major part

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Ⅲ. Disassembly

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Ⅲ. Disassembly

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Ⅲ. Disassembly

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Ⅲ. Disassembly

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Ⅲ. Disassembly

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Ⅲ. Disassembly

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Ⅲ. Disassembly

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Ⅲ. Disassembly

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Ⅲ. Disassembly 5

5

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Ⅲ. Disassembly

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Ⅲ. Disassembly

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Ⅲ. Disassembly

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Ⅲ. Disassembly

1. Actual Training -. Refer to ‘Service Manual’ TBD

-. Refer to ‘Exploded view’ Adobe Acrobat Document

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Ⅳ. Troubleshooting

Objectives

Ⅰ. Building ability to deal with various problems raised in the field by reviewing troubleshooting Ⅱ. Check the solution of each problem. Ⅲ. Check the difference of each Jam.

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Ⅳ. Troubleshooting Clearing Jams in the Paper Tray Type

Case

Jam Removal

Jam 0

Leading edge of media does not 1. Pull out cassette arrive at registration within a certain 2. Remove jammed paper time after pick-up (If fails at a time,it tries pick-up again)

Jam 1

Leading edge of media does not 1. Open front cover arrive at Exit Sensor within a certain 2. Pull out toner cartridge time after registration 3. Remove jammed paper

Jam 2

Trailing edge of media does not leave Exit Sensor within a certain time after touching registration

1. Open rear cover (2. Pull down jam lever on f unit and open f cover) 3. Remove jammed paper from exit

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Jam Layout

Ⅳ. Troubleshooting Clearing Jams in the Paper Tray

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Ⅳ. Troubleshooting Clearing Jams in the Paper Tray

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Ⅳ. Troubleshooting Clearing Jams in the Paper Tray

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Ⅳ. Troubleshooting Clearing Jams in the D uplex Unit

Type

Case

Duplex Jam 1 Trailing edge of media leaves Exit Sensor, and does not arrive at Duplex Sensor

Jam Removal 1. Open rear cover 2. Remove jammed paper OR 1. Pull out duplex unit 2. Remove jammed paper from duplex unit

Duplex Jam 0 Leading edge of media does not 1. Open rear cover arrive at registration within a certain 2. Remove jammed paper time after touching Duplex Sensor OR 1. Pull out duplex unit 2. Remove jammed paper from duplex unit

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Jam Layout

Ⅳ. Troubleshooting Clearing Jams in the D uplex Unit

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Ⅳ. Troubleshooting Clearing Jams in the D A D F

Type Document Jam

Case All case of DADF Jam

Jam Removal 1. Open DADF open cover 2. Remove jammed paper OR 1. Open DADF open cover and Lift up DADF middle cover 2. Remove jammed paper

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Ⅳ. Troubleshooting Clearing Jams in the D A D F

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