Samsung A3 Monochrome Overview

SVC Innovation Group

Samsung IT Solutions Business

ContentsContents 1. H/W Change Point• Frame• Imaging Unit• Fuser• Paper Handling• Drive• LSU

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WTB

LSU

COVER-INNER

OZONE FILTER

COVER SHIELD

COVER-LEFTUPPER & LOWER

HW CHANGE POINT – Frame(1/4)

COLOR MONO

4

FACE-UP TRAY 2ND EXIT

HW CHANGE POINT – Frame(2/4)

COLOR MONO

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[EXIT DRIVE]

COVER –REAR UPPER

SHIELD-MAIN UPPER

FRAME-REAR SHIELD MAIN

FRAME-SHIELD ENGINE

COVER –REAR UPPER

FRAME-REAR SHIELD MA IN UPPER

FRAME-REAR SHIELDMA IN UPPER

HW CHANGE POINT – Frame(3/4)

COLOR MONO

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IMAGING UNIT

CARTRIDGE-WTB

TONER K

ITB

WTB

TONER Y,M,C,K

IMAGING UNIT

Y,M,C,K

HW CHANGE POINT – Frame(4/4)

COLOR MONO

Cartridge-Drum Unit Layout

OPC Drum Φ30 (Mono

only)

Mag. Roll Φ18.2(Mono only)

Auger Mix Φ18(Mono only)

Auger Supply Φ18(Mono only)

Eraser Lamp(attached to set)

Doctor Blade Non-Magnetic

1.5t(Mono only)

Cleaning Blade 2.0t (Mono

only)Waste Toner Auger :

Φ10 (Mono only)

Pin Scorotron

(Color common)

T/C Sensor(Color

common )

Paper Guide SheetNon-Electrostatic

Film(Mono only)

Paper Separator(Mono only)

Cartridge-Drum Unit Air Flow Layout

Blow in

(Air curtain for blocking paper dust)

Blow out

(Ozone Filtering)

Blow out

(Suction of dispersed toner )

Cartridge-Drum Unit Main Part Spec.Cartridge-Drum Unit Main Part Spec.

List Color(35ppm) Mono(40ppm)

Yield Drum Cartridge : 75K(Y.M.C.Bk) Toner Cartridge : 20K(Y.M.C) 25K(Bk)

Drum Cartridge : 100K(Bk) Toner Cartridge : 35K(Bk)

Developer Toner+Carrier ←←

OPC Drum Out Diameter : Φ30, Length : 360mm Development Gap : 0.4±0.05

Out Diameter : Φ30, Length : 360mm Development Gap : 0.4±0.05

CleaningBlade

Width : 2.0t, Length : 8.5±0.1 Hardness : 76±3 degree

Width : 2.0t, Length : 8.5±0.1 Hardness : 72±3 degree

Pin Scorotron Gap ; 0.8±0.1mm ←←Mag. Roll

Out Diameter : Φ18.2±0.03 Magnetic Main Force(S1) : 115mT

Out Diameter : Φ18.2±0.03 Magnetic Main Force(S1) : 112.5mT

T/C Sensor Toner Density Transmission Sensor(TDK ) ←←

DoctorBlade

Doctor Gap : 0.55~0.6mm, Length : 336mm

Doctor Gap : 0.55~0.6mm, Length : 332.4mm

Auger

Developer : 330g Mixing Auger : Φ18(Single Spiral, CCW) Supply Auger : Φ18(Double Spiral, CCW)

Developer : 345g Mixing Auger : Φ18(Single Spiral, CCW) Supply Auger : Φ18(Double Spiral, CW)

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Free Belt System ( IFS )

IFS (Instant Fusing System)-. Thin SUS Belt (320µm) application ( Warm-up time is under 25 sec)

-. Roller Pressure Activation

3

[ IFS Concept Drawing ]

4

5

6

7

9.0 kg/f

9.0 kg/f

1

2

8

9

[ IFS Part Name & Material ]

Lamp

Gear -Drive

[ Ex : 2 roller system]

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Free Belt System ( IFS )

[ Heat Ass’y exploded View ]

Bush Belt Rear

Bush Belt Front

Brkt Inner Belt

Brkt Nip

Lamp (1300W)

Brkt Gap

Holder Inner

Brkt Nip Sub Ellipse

Drum Belt

Roller Pressure

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Temperature Control & Protection

1. NC sensor -. Tc : Center Lamp duty control-. Ts : Side Lamp duty control

2. H/W Protection Thermistor-. Safety device for overheating

3. Thermostat-. Mechanical Safety device for overheating

Lamp A (600W) Lamp B (700W)

THERMOSTATNC sensor : Tc

NC sensor : Ts

H/W protection Thermistor

Temperature Control(Lamp duty control)

NC sensor( Temperature sensing )

H/W Protection Thermistor

Thermostat

Lamp cut-off

[ Temperature Control Flow-Chart ]

[ Sensor Location]

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Temperature Control & Protection

◈ NC sensor ( Non-Contact temperature sensor ) -. Function : Temperature sensing device on LBP Heater surface -. Method : Senses infrared rays on the surface -. Process : Temperature sensing by comparing voltage drop of compensation voltage [ Voltage_drop = compensation_voltage(Vc) - detection_voltage(Vd)]

[ NC Sensor – exploded view ]

Rivet

FPC board

Spacer

Holder

Heater

Sensor

Infrared rays

[ Non-Contact Sensor ] [ Circuit Diagram]

◈ Thermostat

-. Basic structure① Base frame② Bimetal : Low_expansion (Ni+Fe), High_expansion (Ni+Mn+Cu or Ni+Fe+Cr etc.)③ Disk④ Pin (Ceramic)⑤ Cap (Aluminum)-. Process ① Bimetal consists of two different coefficients of thermal expansion. Excessive heating of bimetal surface will cause the bimetal to flip. (Snap Through)② The pin under the Bimetal will push a switch and cut off current to the lamp.

[ Normal ][ Overheating

]

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Color Mono

Main structure Belt IFS

Fusing system Belt driving

(Belt : Electrically conductive PI)Free Belt

(Belt : SUS 304 )

Main composition

Belt / Pressure Roller (LSR)

Fuser Roller / Heat Roller

Belt structure / Pressure Roller (sponge)

Lamp Dual 1300W (Normal Lamp) Dual 1300W (High performance Lamp)

Replacing system

Handle Lever + Screw (2 points) Screw (4 points)

Pressing system

Spring(Compression) – one side 14 Kg Spring(Tension) – one side 4.5 Kg

Pressure control system

Step Motor (on Fuser) + Cam

☞ Pressure Roller Moving

Step Motor (on Set) + Cam

☞ Belt system Moving

Jam control Step Motor ( backward acting ) Connect Jam control Lever and Side-cover

Torque 4.5 Kgf.cm Max 8.0 Kgf.cm Max

Media (Max) 320mm (SRA3) 305mm(12’x18’)

HW CHANGE POINT – Fuser(1/2)

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Color Mono

Main structure Belt IFS

WUT 45 second 25 second

FCOT Color 8.5sec / Mono 7.5sec Mono 5 sec

Sensor -Thermostat : 2ea

Square Bimetal Type 179℃

Gap 2.1~2.7mm

-NC Sensor : 2ea

Gap 5.2~5.8mm

-H/W Protection : Contact Thermistor 2ea

Gap 0.5~1.0mm

- Thermostat : 2ea

Square Bimetal Type 190℃ Gap 3.0~3.6mm

-NC Sensor : 2ea

Gap 4.5~5.5mm

-H/W Protection : Contact Thermistor 2ea

Gap 0.5~1.0mm

Power Draw connector ( when a fuser is assembled in the Set )

HW CHANGE POINT – Fuser(2/2)

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Part Specification Remark

Cassette

520 Sheet(80gsm) Tray2 x 2, Height 90 ㎜Auto Size Sensing, Universal TypeCenter Loading

12”×18”

MediaMax.:12”×18” (305×457 ㎜ )Min. : 3.5”×5.8”(89×148 ㎜ )Weight : 60 ~ 216g/ ㎡

Bypass

Pick UpRubber φ20 ㎜ , Retard Roller Type

Urethane

Feeding Roller

FRR (Forward / Reverse Roller)

Regi. Roller

Reflection Type Sensor, Dust exclusion device applicationRelease device application if you open Side Cover

ExitStacking 500 Sheets → Main Exit Tray 125 Sheets → 2nd Exit Tray

Duplex Efficiency : 100% (3Batch)Excludingfirst Sheet

Multi PurposeFeeder

100 sheetsPick up/Separation type: Retard Roller

HW CHANGE POINT – Paper-Handling(1/12)

◆ Main Specification

T1-A

T2-A

T1-C

T1-D

T2-C

T2-D

T2-B

T1-B

T1-E

T2-E

RE-A

RE-B

FU-A

EX-E

EX-C

EX-B

EX-A

EX-G

EX-FEX-D

SignalName

NameFunction /Operation

Type Remark

T1-A Tray1 paper size detection

Detects tray1 paper size (installation) Switch 5 built-in

type

T1-B Tray1 paper remaining quantity detection

Detects tray1 paper remaining quantity Transmission

2 built-in type

T1-C Tray1 paper empty detection

Detects tray1 paper empty Transmission

T1-D Tray1 upper limit detection

Detects tray1 upper limit Transmission

T1-E Tray1 transport detection

Detects tray1 paper pass Reflect

T2-A Tray 2 paper size detection

Detects tray1 paper size (installation) Switch 5 built-in

type

T2-B Tray2 paper remaining quantity detection

Detects tray2 paper remaining quantity Transmission

2 built-in type

T2-C Tray2 paper empty detection

Detects tray2 paper empty Transmission

T2-D Tray2 upper limit detection

Detects tray2 upper limit Transmission

T2-E Tray2 transport detection

Detects tray2 paper pass Reflect

RE-A Paper regi time detection

Detects paper regi. Time Reflect

RE-B Transparency detection Detects transparency Reflect

FU-A Paper curl detection Detects paper position Transmission

3 built-in type

EX-A Paper jam detection Detects fuser jam Transmission

EX-B Exit tray1 jam detection Detects exit jam Transmission

EX-C Exit tray1 paper full detection Detect paper full Transmission

EX-D Return transport path detection

Detects return(Exit2 tray) paper pass Transmission

EX-E 2nd Exit tray jam detection Change paper path Transmission

EX-F 2nd Exit tray paper full detection Change paper path Transmission

EX-G Return Path Solenoid Change paper path Plunger

HW CHANGE POINT – Paper-Handling(2/12)◆ Paper Path and Sensing Specification 1

SignalName

NameFunction /Operation

Type Remark

MP-A MPF solenoid MPF pick up roller up/down Plunger

MP-B MPF media size detection

Detects MPF paper size Resistance

MP-CMP media size detection (Long media)

Detects MPF paper size Transmission

MP-D MPF Paper empty detection

Detects MPF paper empty

Transmission

MP-E MPF clutch MPF power Switching

e-Clutch

MP-F Duplex clutch MPF power Switching

e-Clutch

MP-G Duplex jam detection 2

Detects duplex jam 2 Transmission

MP-H Duplex jam detection 1

Detects duplex jam 1 Transmission

T1-F Tray1 Lift Motor Lifting knock up plate DC Motor

T2-F Tray2 Lift Motor Lifting knock up plate DC Motor

※ Quantity : Default value is 1

(If there is not additional remark)

MP-A

MP-E

MP-B

MP-C

MP-F

MP-H

MP-G

MP-D

T2-F

T1-F

◆ Paper Path and Sensing Specification 2

HW CHANGE POINT – Paper-Handling(3/12)

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Lift Gear

Auto Size Sensing

Cover

Knock Up

Paper Guide F

Paper Guide R

◆ Cassette Design Direction

HW CHANGE POINT – Paper-Handling(4/12)

◆ Cassette Specifications

1) Feeding of plain paper and Special Media Paper is supported.

2) Auto sensing of 12 different kinds of paper.

3) Max. Media Size : 12"×18“ (305×457 ㎜ )

1) Structure : Cassette Type, plain paper recognized automatically.

2) Capacity : 520 Sheets (80g/ ㎡ )

3) Paper :

-. Plain Paper : A5, A4, A3, B5, B4, Letter, 11"×17"(Ledger), Statement, Legal

-. Special Paper : 12"×18“, Label, Card stock

4) Weight : Plain Paper 60 ~ 163g/ ㎡

5) Plate knock up Lift Type : Lift Motor + Up Limit Sensor

1) Retard Roller used to achieve high quality Paper feeding for A3 25 ~ 50 ppm MFP.

2) Pick Up Roller is φ 20mm making the first Cassettes’ height 90mm.

3) Good quality material for long life (Urethane, Life = 225K)

4) Feed Roller built-in with wall connector for ease of service.

1) Type : Center Loading reverse separation

2) Pick Up / Forward / Retard Roller

a) Coefficient of friction : Over 1.2

b) Material : Urethane (Hardness ; 50˚± 5˚)

C) The velocity ratio : Forward Roll VS Pickup Roll (1:1) , Forward Roll VS Retard Roll (1:0.67)

3) Torque Limiter : Torque ; (350±7%)gf

4) Picking Force : 250±5% gf

5) Retard Roll Pressure : 108±5% gf

6) Pick up Clutch On, Off Time : On 400mmsec , Off 930mm/sec (Letter Standard)≒ ≒

7) Paper feeding Velocity : 40PPM in Letter LEF (Long Edge Feeding)

Pick Up Roller

Empty Sensor

Forward Roller

Retard Roller

HW CHANGE POINT – Paper-Handling(5/12)◆ Pick-up Design Direction

◆ Pick-up Specifications

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1) Main Frame fixed for enhanced Skew quality

2) Easy roller replacement by accessing side cover.

3) Jam lever attached to RegiRoller for ease of jam removal.

1) Skew in Simplex

-. Top Skew : 2.0mm/241.3mm ( Option : 2.5mm/241.3mm)

-. Side Skew : 1.5mm/241.3mm ( Option : 2.0mm/241.3mm)

2) Skew in Duplex

-. Top Skew : 3.0mm/241.3mm ( Option : 3.5mm/241.3mm)

-. Side Skew : 2.3mm/241.3mm ( Option : 2.5mm/241.3mm)

3) Dog Ear, Nicks, Wrinkling

-. Plain Paper : 1/5,000

-. Special Media : 1/1,000

4) Margin

-. Top Margin : 4.23 ± 2 mm ( Tray2, 3 : 4.23 ± 2.5 mm)

-. Left, Right Margin : 3 ± 2 mm ( Tray2, 3 : 3 ± 2.5 mm)

Regi Roller

Shaft-Regi

Regi Sensor OHP Sensor

Jam Removal Lever

HW CHANGE POINT – Paper-Handling(6/12)◆ Regi. Design Direction

◆ Regi. Specifications

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1) Slide Open Method for ease of replacement parts and jam removal.

2) Duplex unification design.

3) Paper Path stabilization and twist prevention.

1) Structure -Slide Rail for easy of service -Presses located in 4 directions(left/right/up/down) for twist prevention.-Stabilized alignment through fixed point at frame unit and exit unit.

2) Duplex Specifications

a) Efficiency : 40ipm (100% , 3 Batch)

b) Paper : A4, A3, B5, B4, Letter, Ledger, Statement, Legal,12"×18”,

c) Weight : Plain Paper60 ~ 163g/ ㎡

d) Speed : Into 2 times 100% efficiency achievement

HW CHANGE POINT – Paper-Handling(7/12)◆ Side Design Direction

◆ Side Specifications

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1) Type : Center Loading reverse separation type

2) Pick Up / Forward / Retard Roller

a) Coefficient of friction : Over 1.2

b) Material : Urethane (Hardness ; 50˚± 5˚)

c) Speed ratio : Forward Roll VS Pickup Roll (1:1)

3) Torque Limiter : Torque ; (350±7%) gf

4) Picking Force : 220±5% gf

5) Retard Roll force : 170±5% gf

6) Tray Capacity : 100sheets (Weight 80g/ ㎡ standard)

7) Media : Max 12”×18” (305×457 ㎜ ) Min 3.5”×5.8” (89×148 ㎜ )

8) Weight : Plain paper 60 ~ 216g/ ㎡

9) Paper Feeding Speed: 40PPM in Letter LEF(Long Edge Feeding)

1) Retard Roller used to achieve high quality Paper feeding for A3 25 ~ 50 ppm MFP.

2) Easy roller replacement by accessing side cover.

3) Auto sensing of 12 different kinds of paper. (Volume Resistance + Photo Sensor)

MPF Tray

MPF Clutch

MPF Pick Up Roller

Long Paper Sensor

Empty Sensor

HW CHANGE POINT – Paper-Handling(10/12)◆ MPF Design Direction

◆ MPF Specifications

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1) Stack Structure

- 500 Sheets (80gsm) ( Height of Cover Top ~ Exit Entrance : 68mm)

- Paper Stack Quality: Paper Width ± 15mm

2) Out Bin full Sensor

1) Stack Height 66mm (500 Sheets Stack standard)

2) Duplex unification design

3) Dual use Fuser Motor

4) 2nd Exit can be installed.

HW CHANGE POINT – Paper-Handling(11/12)◆ Exit Design Direction

◆ Exit Specifications

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1) Stack Structure

- Paper Size : A5 ~ A3, Ledger

- Paper Weight : 60gsm ~ 163 gsm

- Stack Volume : 125 Sheets (80gsm standard)

2) Dual use Duplex Path

3) Out bin Full Sensor

4) Can be used even if duplex is applied (Duplex Efficiency 50~70%)

5) Sensor can recognize if it is installed or not

1) A5 ~ A3, Ledger paper

2) Dual use Duplex Path

3) Can be used even if finisher is installed

HW CHANGE POINT – Paper-Handling(12/12)◆ 2nd Exit Design Direction

◆ 2nd Exit Specifications

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COLOR

[MAIN DRIVE] - OPC/DEVE ; BLDC(4) , E-Clutch(4) - ITB ; BLDC - T1 Engage ; PM STEP

MONO

[MAIN DRIVE] - OPC/DEVE ; BLDC - REGI, /MP/Duplex ; BLDC , E-CLUTCH

[REGI./MP/DUP DRIVE] - REGI ; Hybrid STEP - MP/Duplex ; Hybrid STEP

HW CHANGE POINT – Drive(1/3)

REGI. CLUTCH OPC/Deve. BLDC

REGI./MP/DUP BLDC

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HW CHANGE POINT – Drive(2/3)

COLOR

[FUSER RELEASE DRIVE] - Driving system inside fuser unit

MONO

[FUSER RELEASE DRIVE] - Driving system outside the fuser unit

Color : No driving system - Toner duct is a vertical structure.

[DUCT DRIVE] : A driving system is added. - Toner duct is a horizontal structure.

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HW CHANGE POINT – Drive(3/3)

COLOR

[EXIT DRIVE]

MONO

[EXIT DRIVE] - The bracket is the only new part.

Driving systems of Pick-up, WTB & Toner-bottle are common in both color & mono devices.

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[Major performance] - Optical parts : motor(2) ,LD PBA(4) ,Flens(8) - Additional devices : skew assy, shutter assy, joint PBA - Size : L496*W358*H75 - Weight : 5.66Kg

[Major Performance] - Optical parts : motor(1) ,LD PBA(1), Flens(2) - Additional devices : No additional device - size : L275*W410*H40 - Weight : 1.6kg

HW CHANGE POINT – LSU(1/3)

COLOR MONO

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[Not Required additional PBA B’d ] - 1 connector is used

[Required additional PBA B’d] - multiple connectors are used

In the case of mono, LSU consists of 1 laser beam (for K color).

In the case of Color, LSU consists of 4 laser beams (for K, C, M, Y color)

HW CHANGE POINT – LSU(2/3)

COLOR MONO

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[No shutter assy] - Because LSU and OPC are in parallel position, no need for special shutter drive to cover glass pollution.

[shutter assy] - Because LSU and OPC are in vertical position, shutter drive is used for protecting cover glass pollution.

Optical system including optical parts is the same as color device, but (compared with color) sub-parts and additional devices are reduced, so frame and structure is different.

HW CHANGE POINT – LSU(3/3)

COLOR MONO

Cover glass

Cover glass

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Thank You

Samsung IT Solutions Business