Muratec F-114, F-114P User Manual

F-114 / F-114P

DIGITAL LASER MFP

SERVICE MANUAL

Contents

1. Precautions

2. Product Specifications & Features

3. Disassembly and Reassembly

4. Alignment & Troubleshooting

5. Exploded Views and Parts Lists

6. System Diagram

7. Reference Information

Contents

1. Precautions

1.1 Safety Warning 1-1

1.2 Caution for safety

1.3 ESD Precautions

2. Product Specifications and Features

2.1 Product Specifications 2-1

2.2 Summary of Product

2.2.1 Printer Components

2.2.2 Overview of System

2.2.3 System Layout

2.2.4 Main PBA(SPL Model)

2.2.5 SMPS & HVPS

2.2.6 Engine F/W

2.2.7 OPE PBA

1-2 1-5

2-5 2-5 2-9

2-11 2-15 2-18 2-22 2-23

3. Disassembly and Reassembly

.1 General Precautions on Disassembly 3-1

3.2 White Roller Ass,y

3.3 Rear Cover

3.4 Side Cover L

3.5 Side Cover R

3.6 OPE Unit

3.7 ADF Rubber Pad

3.8 CIS

3.9 Exit Roller

3.10 Front Cover Ass'y

3.11 Scan Ass'y

3-2 3-2 3-3 3-3 3-4 3-6 3-7 3-7 3-8 3-9

Continued

3.12 Scan Motor Ass'y 3-10

3.13 ADF Roller

3.14 Sub Hook PBA

3.15 Drive Ass'y

3.16 DC-Fan

3.17 Exit Cover Ass'y

3.18 LSU-Unit

3.19 Engine Shield Ass'y

3.20 Main PBA

3.21 SMPS

3.22 Fuser Ass'y

3.23 Transfer Ass'y

3.24 Feed Ass'y

3.25 Pick up Ass'y

3.26 Solenoid

3-11

3-12 3-13 3-13 3-14 3-15 3-15 3-16 3-17 3-18 3-20 3-21 3-23 3-23

4. Alignment & Troubleshooting

4.1 Alignment and Adjustments 4-1

4.1.1 Paper path 4-1

4.1.2 Clearing Paper Jams

4.1.3 User Mode(F-114P) 4

4.1.4 Tech Mode

4.1.5 Engine Test Mode

4.1.6 Identify Sale Date

4.1.7 Consumables and Replacement Parts

4.1.8 Abnormal Image Printing and Defective Roller

4.1.9 Error Messages

4.2 Troubleshooting

4.2.1 Procedure of Checkig the Symptoms

4.2.2 The cause and solution of image quality

4.2.2 Fax & Phone Problems

4-4

-12 4-13 4-18 4-19 4-20 4-21 4-22 4-25 4-25 4-26 4-42

Continued

4.2.3 Copy Problems 4-51

4.2.4 Paper Feed problems – Causes and Solutions

4.2.5 Printer Faults – Causes and Solutions

4.2.6 Toner Cartridge Service

4.2.7 Software Problems – Causes and Solutions

5. Exploded Views & Parts Lists

5.1 Main Exploded View 5-2

5.2 Top Cover Exploded View

5.3 OPE Ass’y Exploded View

5.4 Scan Upper Ass’y Exploded View

5.5 Main Frame Exploded View

5.6 Fuser Unit Exploded View

5.7 Exit Cover Exploded View

5.8 Cassette Unit Exploded View

4-55 4-63 4-73 4-78

5-5 5-7 5-9

5-11 5-14 5-16

5-18

6. System Diagram

6.1 Block Diagram 6-1

6.1 Connection Dia ram

7. Reference Information

7.1 Troubleshooting Tools 7-1

7.2 Acronyms and Abbreviations

7.3 Selecting printer locations

7.4 LAN (Optional Function)

7.5 Sample Tests Patterns

6-2

7-2 7-4 7-4 7-5

Service Manual

Precautions

1. Precautions

In order to prevent accidents and to prevent damage to the equipment please read the precautions listed below carefully before servicing the printer and follow them closely.

CAUTION - INVISIBLE LASER RADIATION 

WHEN THIS COVER OPEN.  DO NOT OPEN THIS COVER.

VORSICHT - UNSICHTBARE LASERSTRAHLUNG, 

WENN ABDECKUNG GEÖFFNET.  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 LASERSTRÅLNING VED ÅBNING, NÅR 

SIKKERHEDSBRYDERE ER UDE AF FUNKTION.  UNDGÅ UDSAETTELSE FOR STRÅLNING.

ADVARSEL. - USYNLIG LASERSTRÅLNING NÅR DEKSEL 

ÅPNES. STIRR IKKE INN I STRÅLEN.  UNNGÅ EKSPONERING FOR STRÅLEN.

VARNING - OSYNLIG LASERSTRÅLNING NÄR DENNA DEL 

ÄR ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD.  BETRAKTA EJ STRÅLEN. STRÅLEN ÄR FARLIG.

VARO! - AVATTAESSA JA SUOJALUKITUS OHITETTAESSA 

OLET ALTTIINA NÄKYMÄTTÖMÄLLE LASER- SÄTEILYLLE ÄLÄ KATSO SÄTEESEEN.

1.1 Safety Warning

(1) Only to be serviced by appropriately qualified service engineers.

High voltages and lasers inside this product are dangerous. This printer should only be serviced by a suitably trained and qualified service engineer.

(2) Use only authorized replacement parts

There are no user serviceable parts inside the printer. Do not make any unauthorized changes or additions to the printer, these could cause the printer to malfunction and create electric shock or fire haz-ards.

(3) 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, it is certified as a Class I laser product con-forming to the requirements of IEC 825. Class I 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 I level during normal operation, user maintenance, or prescribed service condition.

Warning >> 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 pre-cautions should always be followed to reduce risk of fire, electric shock, and injury to persons.

1-1

Service Manual

Precautions

1.2 Caution for safety

1.2.1 Toxic material

This product contains toxic materials that could cause illness if ingested.

(1) If the LCD control panel is damaged it is possible for the liquid inside to leak. This liquid is toxic. Contact with the skin

should be avoided, wash any splashes from eyes or skin immediately and contact your doctor. If the liquid gets into the mouth or is swallowed see a doctor immediately.

(2) 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.

1.2.2 Electric Shock and Fire Safety Precautions

Failure to follow the following instructions could cause electric shock or potentially cause a fire.

(1) Use only the correct voltage, failure to do so could damage the printer and potentially cause a fire cause an

electric shock.

(2) Use only the power cable supplied with the printer. Use of an incorrectly specified cable could cause the cable

to overheat and potentially cause a fire.

(3) Do not overload the power socket, this could lead to overheating of the cables inside the wall and could lead to

a fire.

(4) Do not allow water or other liquids to spill into the printer, this can cause electric shock. Do not allow paper

clips, pins or other foreign objects to fall into the printer these could cause a short circuit leading to an electric shock or fire hazard..

(5) Never touch the plugs on either end of the power cable with wet hands, this can cause electric shock. When

servicing the printer remove the power plug from the wall socket.

(6) Use caution when inserting or taking off the power plug. The power plug has to be inserted completely. If not,

a fire will be caused due to poor contact. When taking off the power plug, grip the plug and remove it.

(7) Take care of the power cable. Do not allow it to become twisted, bent sharply round corners or other wise

damaged. Do not place objects on top of the power cable. If the power cable is damaged it could overheat and cause a fire or exposed cables could cause an electric shock. Replace a damaged power cable immediately, do not reuse or repair the damaged cable. Some chemicals can attack the coating on the power cable, weakening the cover or exposing cables causing fire and shock risks.

(8) Ensure that the power sockets and plugs are not cracked or broken in any way. Any such defects should be

repaired immediately. Take care not to cut or damage the power cable or plugs when moving the machine.

(9) Use caution during thunder or lightening storms. It is recommend that this machine be disconnected from

the power source when such weather conditions are expected. Do not touch the machine or the power cord if it is still connected to the wall socket in these weather conditions.

(10) Avoid damp or dusty areas, install the printer in a clean well ventilated location. Do not position the machine

near a humidifier. Damp and dust build up inside the machine can lead to overheating and cause a fire.

(11) Do not position the printer in direct sunlight. This will cause the temperature inside the printer to rise possibly

leading to the printer failing to work properly and in extreme conditions could lead to a fire.

(12) Do not insert any metal objects into the machine through the ventilator fan or other part of the casing, it could

make contact with a high voltage conductor inside the machine and cause an electric shock.

1-2

Service Manual

Precautions

1.2.3 Handling Precautions

The following instructions are for your own personal safety, to avoid injury and so as not to damage the printer

(1) Ensure the printer is installed on a level surface, capable of supporting its weight. Failure to do so could cause

the printer to tip or fall.

(2) printer contains many rollers, gears and fans. Take great care to ensure that you do not catch your fingers, hair

or clothing in any of these rotating devices.

(3) Do not place any small metal objects, containers of water, chemicals or other liquids close to the printer which if

spilled could get into the machine and cause damage or a shock or fire hazard.

(4) Do not install the machine in areas with high dust or moisture levels, beside on open window or close to a

humidifier or heater. Damage could be cause to the printer in such areas.

(5) Do not place candles, burning cigarettes, etc on the printer, These could cause a fire.

1.2.4 Assembly / Disassembly Precautions

Replace parts carefully, always use authorized parts. Take care to note the exact location of parts and also cable routing before dismantling any part of the machine. Ensure all parts and cables are replaced correctly. Please carry out the following procedures before dismantling the printer or replacing any parts.

(1) Check the contents of the machine memory and make a note of any user settings. These will be erased if the

mainboard or network card is replaced. (2) Ensure that power is disconnected before servicing or replacing any electrical parts. (3) Disconnect printer interface cables and power cables. (4) Only use approved spare parts. Ensure that part number, product name, any voltage, current or temperature

rating are correct. (5) When removing or re-fitting any parts do not use excessive force, especially when fitting screws into plastic. (6) Take care not to drop any small parts into the machine. (7) Handling of the Toner Cartridge

- The OPC Drum can be irreparably damaged if it exposed to light. Take care not to expose the OPC Drum either to direct sunlight or to fluorescent or incandescent room lighting. Exposure for as little as 5 mins can damage the surface’s photoconductive properties and will result in print quality degradation. Take extra care when servicing the printer. Remove the OPC Drum and store it in a black bag or other lightproof container. Take care when working with the covers(especially the top cover) open as light is admitted to the OPC area and can damage the OPC Drum.

- Take care not to scratch the green surface of OPC Drum Unit. If the green surface of the Drum Cartridge is scratched or touched the print quality will be compromised.

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Service Manual

Precautions

1.2.5 Disregarding this warning may cause bodily injury

(1) Be careful with the high temperature part.

The fuser unit works at a high temperature. Use caution when working on the printer. Wait for the fuser to cool down before disassembly.

(2) Do not put finger or hair into the rotating parts.

Take care when using a printer. It contains many rotating parts. Ensure that fingers, hair, clothing etc. do not become caught in the mechanism as this could cause injury.

(3) When you move the printer.

This printer weighs 10kg including toner cartridge and cassette. Use safe lifting and handling techniques. Use the lifting handles located on each side of the machine. Back injury could be caused if you do not lift carefully.

(4) Ensure the printer is installed safely.

The printer weighs 10Kg, ensure the printer is installed on a level surface, capable of supporting its weight. Failure to do so could cause the printer to tip or fall possibly causing personal injury or damaging the printer.

(5) Do not install the printer on a sloping or unstable surface. After installation, double check that the printer is

stable.

1-4

Service Manual

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 >>Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

1. Immediately before handling a semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, employ a commercially available 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.

3. Use only a grounded tip soldering iron to solder or desolder ESDs.

4. 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.

5. Do not use Freon-propelled chemicals. When sprayed, these can generate electrical charges sufficient to damage ESDs.

6. 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 comparable conductive material.

7. 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.

8. Maintain continuous electrical contact between the ESD and the assembly into which it will be installed, until completely plugged or soldered into the circuit.

9. Minimize bodily motions when handling 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.

1-5

Service Manual

Product spec and feature

2. Product specification and feature

2.1 Product Specifications

Specfications are correct at the time of printing. Product specifications are subject to change without notice. See below for product specifications.

Model Name F-114P F-114 Functions Fax,Copier,Printer,Scanner Fax,Copier

General Size (W*D*H) w/o Hand Set 363.0 * 398.0 * 308.3(mm) 363.0 * 398.0 * 308.3(mm)

Power Power Switch Yes Yes Consumption Input Voltage

**Noise Operating(ADF) Less than 52 dBA Less than 52 dBA

EMI Approval EMI Approval Class B Class B PC Print Power Save Mode Yes (5/10/15/30/45min.off) Yes (5/10/15/30/45min.off)

Items F-114 Series

Weight Without Toner Cartridge 10kg 10kg With Toner Cartridge 11.5kg 11.5kg

LCD 16*2 16*2 Interface USB 1.1 USB 1.1 : f/w Down Load AMV(Average Month Volume)

Duty cycle, Monthly Printing Up to 10,000 pages Up to 10,000 pages

Engine Life Up to 120,000 Pages Up to 120,000 Pages

Power Sleep Mode Energy Star Compliant Energy Star Compliant

Standby Less than 39 dBA Less than 39 dBA Printing Less than 509 dBA Less than 50 dBA

Print Method Laser Laser N/W I/f No No * Speed (Engine) Up to 16 PPM in A4 size, -

Resolution Normal

Print Language GDI Toner Save Yes Yes(Text Mode) Fpot Stand by Approx. 12 seconds -

Printable Area 208 x 273 mm (Letter) Duplex Print

Printing 500 Scan to Copy

or Scan to Fax

ADF SCAN Up to 2,000 pages Up to 2,000 pages

RET No -

Power Save Less than 42 seconds -

500 500

AC110V~127V, 220V ~ 240V AC110V~127V, 220V ~ 240V

(Fax Rec., Memory Copy)

Up to 17 PPM in Letter size Up to 600 x 600 DPI effective output

Manual (driver support provided)

* Speed will be affected by Operating System used, computing performance, application software, connect-

ing method, media type, media size and job complexity.

** Sound Pressure Level, ISO 7779

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Service Manual

Product spec and feature

Items F-114 Series

Model Name F-114P F-114 Scan Halftone 256level 256level

Scan Method "CIS, Mono" "CIS, Mono" *Scan Speed Gray Up to 72 sec (Second /scan) Color - -

Black&White Up to 25 sec -

Resolution(Optical)

Up to 200 x 200 DPI effective output Up to 200 x 200 DPI effective output Halftone 256level Scan Width Max 216mm -

Effective 208mm -

Scan Length Max 400mm -

Copy Speed Up to 16 PPM in A4 size, Up to 16 PPM in A4 size,

Up to 17 PPM in Letter size Up to 17 PPM in Letter size Resolution

Up to 300 x 300 DPI effective output Up to 300 x 300 DPI effective output Halftone 256level 256level Copy Quality Selection Text 16sec/Letter 16sec/Letter

or Original Image type Photo 16sec/letter 16sec/letter selection Mode

FCOT Power Save Yes Yes

Stand by approx : 30sec approx : 30sec

*Copy Speed SDMC Up to 16 PPM in A4 size, Up to 16 PPM in A4 size,

Up to 17 PPM in Letter size Up to 17 PPM in Letter size

MDMC 3cpm 3cpm Zoom Range 50-150% 50-150% Multi Copy 1~99 1~99

Telephone Handset Yes Yes

1-Touch Dial 20 20 Speed Dial 80 80 TAD No No TAD I/F Yes Yes Tone/Pulse Tone (DTMF) Tone (DTMF)

Pulse : setting in tech mode Pulse : setting in tech mode Earth/Recall No No SMS No No External Phone Interface Yes Yes

Fax Compatibility ITU-T G3 ITU-T G3

Communication System PSTN/PABX PSTN/PABX Modem Speed 33.6Kbps 33.6Kbps TX Speed approx. 3 sec approx. 3 sec Compression MH/MR/MMR MH/MR/MMR ECM Yes Yes Resolution Std

Fine

S.Fine

Up to 203 x 98 DPI effective output Up to 203 x 98 DPI effective output

Up to 203 x 196 DPI effective output Up to 203 x 196 DPI effective output

Up to 203 x 392 DPI effective output Up to 203 x 392 DPI effective output

Std Up to 6 sec Up to 6 sec Fine Up to 12 sec Up to 12 sec S.Fine Up to 24 sec Up to 24 sec

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Service Manual

Product spec and feature

* Copy or Scan speed will be affected by Operating System used, computing performance, application software,

connecting method, media type, media size and job complexity.

Items F-114 Series

Model Name F-114P F-114 Fax Halftone 256level 256level (Continued) Memory Capacity

Optional Memory

Total memory: 8MB( Fax: 2MB) Total memory: 8MB(Fax: 2MB)

No No Broadcasting Yes Yes Delay TX Yes Yes Memory RX Yes Yes

Functions Voice Request No No

TTI Yes Yes RTI Yes Yes Polling Rx Polling Rx Polling Security Receive Yes Yes Flash No No Auto Reduction Yes Yes "F/W Upgrade Yes Yes from Remote"

Memory B/U Yes(96 Hour) Yes(96 Hour)

Paper Handling

Casstte Type Cassette Cassette

Input Capacity 250Sheets/20lb 250Sheets/20lb Optional Cassette Output Capacity

No No

Max. 150 sheets/20lb Max 150 sheets/20lb Output Control Face down Face down Bypass 1sh 1sh Media Size for For Fax and Copy: A4,Letter, For Fax and Copy: A4,Letter, Main Tray Legal For PC Print : A4,Letter, Legal For PC Print : A4,Letter,

Legal. Folio, Executive, B5 Legal. Folio, Executive, B5" Media Size for Envelope6 3/4, 7 3/4,#9, Envelope6 3/4, 7 3/4,#9, Bypass #10,DL,C5,B5 #10,DL,C5,B5 Media Weight Auto : 16 ~ 28 Ib Auto : 16 ~ 28 Ib

Bypass: 16 ~ 43 Ib Bypass: 16 ~ 43 Ib

ADF Input Capacity Min. 20 Sheets Min. 20 Sheets

Media Weight 12.5lb ~ 28lb, 32lb(1 sheet) 12.5lb ~ 28lb, 32lb(1 sheet)

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Service Manual

Product spec and feature

Items F-114 Series

Model Name F-114P F-114 Software Windows Win 2000 Yes No

Compatiblity Win 2003 Yes No (Scan/Print) Win XP Yes No

Win Vista Yes No

Driver GDI Printer SPL No

TWAIN Yes No FaxRCP Yes No (Windows ONLY) Mac Printer Yes No Mac Scanner No No Linux Printer Yes No Linux Scanner Yes No PC-FAX No No

M/S Certification WHQL Yes (Win 2000/2003/XP) -

WIA No No Bundle S/W SmarThru 3 Media CD-ROM Yes -

Manual Standalone Fax: Book Standalone Fax: Book

MFP: CD

Diskette No No

Consumables Life Initial 1,000 Pages 1,000 Pages

Running 3,000 Pages 3,000 Pages Toner Sensor (Software) Yes(Dot Counter) Yes(Dot Counter)

Periodic Replacing Parts Pick Up Roller : Up to 60,000 sheets

Transfer Roller : Up to 60,000 sheets Fuser Assembly : Up to 60,000 sheets ADF Roller : Up to 60,000 sheets ADF Rubber : Up to 10,000 sheets

2-4

Product spec and feature

2.2 Summary of Product

This chapter describes the functions and operating principals of the main components.

2.2.1 Printer Components

2.2.1.1 Front View

Summary of Product

Service Manual

2-5

Service Manual

Product spec and feature

Items F-114 Series

Model Name F-114P F-114 Software Windows Win 2000 Yes No

Compatiblity Win 2003 Yes No (Scan/Print) Win XP Yes No

Win Vista Yes No Driver GDI Printer SPL No

TWAIN Yes No

FaxRCP Yes No

(Windows ONLY)

Mac Printer Yes No

Mac Scanner No No

Linux Printer Yes No

Linux Scanner Yes No

PC-FAX No No M/S Certification WHQL Yes (Win 2000/2003/XP) -

WIA No No Bundle S/W SmarThru 3 Media CD-ROM Yes -

Manual Standalone Fax: Book Standalone Fax: Book

MFP: CD

Diskette No No

Consumables Life Initial 1,000 Pages 1,000 Pages

Running 3,000 Pages 3,000 Pages Toner Sensor (Software) Yes(Dot Counter) Yes(Dot Counter)

Periodic Replacing Parts Pick Up Roller : Up to 60,000 sheets

Transfer Roller : Up to 60,000 sheets Fuser Assembly : Up to 60,000 sheets ADF Roller : Up to 60,000 sheets ADF Rubber : Up to 10,000 sheets

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Service Manual

Product spec and feature

1 2 43 5 6 7

2.2.1.3 Control Panel

< F-114 / F-114P >

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Service Manual

Product spec and feature

S A V E

F A X

2-8

Service Manual

Product spec and feature

2.2.2.2 Line Interface.

This part connects the set with the PSTN. The main functions of this section are Line Interface, Line Monitoring, and connection to an external phone or TAD using the built in EXT connector..

2.2.2.3 Print Engine.

The Print Engine consists of the following sections: Frame, Paper Feed, Image Transfer, Imaging Unit, Toner Cartridge, Fuser, High Voltage Supply and Scanner. The set uses an Electro Photographic process using the LSU to develop a latent image on the OPC drum. The Toner process is a single part diamagnetic process. Copy and Transfer processes use a CIS Module.

2.2.2.5 Summary of Main Unit

- Main Board

This is an integral unit having the Engine and Video control on a single PBA. It controls the Electrophotographic Process to take the image from the PC Interface and generate the Video Data for the LSU. It also manages the transfer of that image onto paper and the fusing of the image. The main PBA unit consists of the following circuits: Motor (Paper Feed and Exit) Driver, the Clutch driver, Pre-transfer Lamp Driver, the Fuser Driver and the Fan Driver. The signals from the Paper Feed Sensor, the Paper Empty Sensor, MP sensor and Exit Sensor are input to the Main Board from the SMPS/HVPS PBA.

2.2.2 Overview of System

The F-114 / F-114P can be divided into the following main constituent parts: Main Controller, Operator’s Panel, PC Interface, Scanner, Line Interface and Power Supply. The Main Controller uses an SPGPm processor. The Operator’s panel; (OPE) has its own MICOM which communicates serially with a UART built into the SPGPm processor. The Scanner uses an Image Processor chip (CIP4) to control the CIS. The Line Interface an FM336 integrated with the Main Board and communicates with the LIU at speeds up to 33.6Kbps. The Power Supply has

both the SMPS and HVPS integrated on one PBA.

2.2.2.1 Main Controller.

The Main Controller of the F-114 / F-114P consists of two ASICs (CPU, Image Processor), Scanner, Fax Modem and Print sections. Bus Control, I/O Handling, Scanner, all motor drivers and the PC Interface function is controlled by the CPU. It uses the chorus2. These control the peripherals and the Image Processing.

2.2.2.4 Scanner.

The scanner is designed around a 200dpi CIS module. The CIS scanning width is maximum 216mm, effective width is 208mm. The F-114 operates at 200lpi, the F-114P operates at 300 lpi.

2-9

Product spec and feature

- SMPS Board & HVPS Board

These are integrated into a singe PBA. The Power Supply uses the 110VAC/220VAC supply voltage to generate the DC Voltages used by the system. The SMPS has 3 output channels (+5V, +12V, +24V, +24VS) and supplies the Main Board and the OPE Board.

The HVPS creates the high voltages (THV/MHV/Supply/Dev) used for the electrophotographic process. The high voltage is created from the 24VS line from the SMPS. High Voltage output is supplied to the Toner, the OPC Cartridge and the Transfer Roller.

- OPE Board

The Operation Panel is driven by its own internal program using the OPE MICOM chip separate from the Main Board processor. Data is transferred using the UART Port in the Main Controller serially. This unit consists of the MICOM, the Key Pad Matrix and the LCD.

- Toner Cartridge

The Toner Cartridge consists of integrated Exposure and Developer units. The Exposure Unit consists of the OPC Drum and the Charge Roller, and the Developer Unit consists of the toner particles and its tank, the Supply Roller and the Developer Roller.

- LSU (Laser Scanner Unit)

This is the core of the laser printer. It converts the video data received from the computer into an electrostatic latent image on the surface of the OPC drum. This is achieved by controlling the laser beam and exposing the surface of the OPC drum to the laser light. A rotating polygon mirror reflects the laser light onto the OPC and each side of the mirror is one scan line. The OPC drum turns as the paper feeds to scan the image down the page.

The /HSYNC signal is created when the laser beam from LSU reaches the end of the polygon mirror and this signal is sent to the controller. The controller detects the /HSYNC signal to adjust the vertical line of the image on paper. In other words after the /HSYNC signal is detected the image data is sent to the LSU to adjust the left margin on the paper.

- Toner Transfer

Toner is transferred from the OPC drum onto the paper using a PTL (Pre-transfer Lamp) and a transfer roller. The PTL shines light onto the OPC, this reduces the electrical charge on the surface of the OPC surface and improves the efficiency of the transfer. The transfer roller transfers toner from the OPC drum to the paper. Life span: Print over 100,000 sheets (at 15~30ºC)

- Fuser

This consists of a heat lamp, heat roller, pressure roller, thermistor and thermostat. By use of heat and pressure toner is caused to melt and adhere to the paper surface in order to complete the printing process.

Service Manual

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Service Manual

Product spec and feature

2.2.3 System Layout

2.2.3.1 Feeding section

There is a universal cassette which automatically loads paper and the manual feed which supplies paper single sheet at a time. The cassette has a friction pad which separates paper to ensure single sheet feeding, and it has a sensor, which checks when the paper tray is empty.

- Feeding Method: Universal Cassette Type

- Feeding Standard: Center Loading

- Feeding Capacity: Cassette-250 sheets (75g/m

, 20lb paper standard)

Manual 1 sheet (Paper, OHP, Envelop, etc.)

- Paper detecting sensor: Photo sensor

- Paper size sensor: None

2.2.3.2 Transfer Ass’y

This consists of the PTL (pre-transfer lamp) and the Transfer Roller. The PTL shines a light onto the OPC drum. This lowers the charge on the drum’s surface and improves transfer efficiency. The transfer roller transfers toner from the OPC drum surface to the paper.

- Life expectancy: Over 60,000 sheets (at 15~30°C)

2.2.3.3 Driver Ass’y

- Gear driven power unit. The motor supplies power to the paper feed unit, the fuser unit, and the toner cartridge.

2.2.3.4 Fixing Part(Fuser)

- The fuser consists of the Heat Lamp, Heat Roller, Pressure Roller, Thermistor, and Thermostat. It fixes toner to the paper using pressure and heat to complete the printing job.

2.2.3.4(a) Temperature-Intercepting Device (Thermostat)

The thermostat is a temperature sensing device, which cuts off the power to the heat lamp to prevent overheating fire when the heat lamp or heat roller overheats.

2.2.3.4(b) Temperature Detecting Sensor (Thermistor)

The Thermistor detects the surface temperature of the heat roller, this information is sent to the main processor which uses this information to regulate the temperature of the heat roller.

2.2.3.4(c) Heat Roller

The surface of the Heat Roller is heated by the Heat Lamp. As the paper passes between the Heat and Pressure rollers the toner is melted and fixed permanently to the paper. The surface of the roller is coated with Teflon. This ensures that toner does not adhere to the roller surface.

2.2.3.4(d) Pressure roller

The Pressure Roller mounted under the heat roller, it is made of a silicon resin, and the surface of the roller is coated with Teflon. This ensures that toner does not adhere to the roller surface.

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Product spec and feature

2.2.3.4(e) Safety Features

• To prevent overheating

- 1st protection device: Hardware cuts off when overheated

- 2nd protection device: Software cuts off when overheated

- 3rd protection device: Thermostat cuts off mains power to the lamp.

• Safety device

- Fuser power is cut off when the front cover is opened

- LSU power is cut off when the front cover is opened

- The temperature of the fuser cover's surface is maintained at less than 80ºC to protect the user and a caution label is attached where the customer can see it easily when the rear cover is opened.

2.2.3.5 Scanner

• Scan Image Controller

1.Minimum Scan Line Time : 1.23ms

2.Scan Resolution : Color (Max 600 DPI)

3.Scan Width : 208mm

4.Function

- White Shading Correction

- Gamma Correction

- CIS Interface

- 256 Gray Scale

• CIS Driver Circuit

- CIS Max Frequency : 0.5MHz

- CIS Line Time : 5ms

- White Data Output Voltage : Max 1.2V

• Tx Driver Circuit

- Tx Motor Speed : Max 2200pps

- Motor Driver : STA471A

- Voltage : 24V DC

Service Manual

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Service Manual

Product spec and feature

2.2.3.6 LSU (Laser Scanner Unit)

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Product spec and feature

2.2.3.7 Toner Cartridge

The toner cartridge is an integral unit containing the OPC unit and toner unit. The OPC unit consists of the OPC drum and charging roller, and the toner cartridge unit consists of the toner, 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: 3,000 sheets (IDC Pattern/A4 standard)

- Toner remaining amount detecting sensor: Yes

- OPC Cleaning: Electrostatic process

- Management of waste toner: Collect the toner using a Cleaning Blade

- OPC Drum protecting Shutter: Yes

- Classifying device for toner cartridge: ID is classified by interruption of the frame channel

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Service Manual

Product spec and feature

FLASH MEMORY

MODEM

EXPANSION I/O

(HCT273)

Battery

SDRAM

STA471

(SCAN MOTOR DRIVE I/C)

SUPER1284

BUFFER(INVERTER)

74HCTO 4M

MODEM CLOCK

MOTOR DIRVE IC (A3 977 SLP)

ASIC

74LVX161284

2.2.4 Main PBA(SPL Model)

The Engine Board and Controller Board have been integrated into a single PBA. This consists of the CPU, printer scanner and line control functions. The CPU functions as the bus controller, I/O handler, motor driver and PC inter-face. The main board sends the Current Image Video data to the LSU and manages the Electrophotographic printing process. Circuits on the PBA drive include the main motor (paper feed, cartridge, fuser), clutch driver, pre-transfer lamp driver, heat-lamp driver, CIS driver, scan motor driver, modem and fan driver. The signals from the paper feed jam sensor and paper empty sensor are inputted to the main board from the power supply PBA.

Line interface circuit, it is a circuit for interfacing a telephone line with a modem and DAA. The circuit consists of a matching circuit to conform to the impedance of the receiving telephone line and a circuit to conform to the impedance of a modem. Also, there is a ring detect circuit to detect a ring signal from the switchboard and a surge absorber to protect against lighting strike surges on the incoming line.

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Service Manual

Product spec and feature

2.2.4.2 Flash Memory

This stores the system program. Firmware upgrade is achieved by downloading from the new image using the PC Interface.

• Capacity : 0.5 M Byte

• Access Time : 70 nsec

2.2.4.3 SDRAM

This is used as a buffer, system working memory area, etc. while printing and scanning. This memory is also used to store faxes waiting to be sent or waiting to be printed.

• Access Time : 60 nsec

2.2.4.1 ASIC (Chorus2)

The unt's S3C46Q0X 16/32-bit RISC micro controller is designed to provide a cost-effective, low power, small die size and high performance micro-controller solution for MFP. The S3C46Q0X is developed using ARM7TDMI core, 0.18(m CMOS standard cell, and memory cell.

•Main function block

• 1.8V internal, 3.3V external (I/O boundary) microprocessor with 4KByte Cache

• Image Processor

• On-chip clock generator with PLL

• Memory & External Bank Control

• DMA Control (5-channel)

• Interrupt Control

• 2-port USB Host /1- port USB Device (ver 1.1) Interface Control

• UART (2 Channel)

• Synchronous Serial Interface Control

• Timer (4 Channel)

• Watch Dog Timer

• Power control: Normal, Slow, Idle, Stop and SL_IDLE mode

• A/D Converter (10-bit, 2 Channel)

• General I/O Port Control

• Print Head Control

• Carrier Motor Control

• Paper Motor Control

• Tone Generator

• RTC with calendar function

• S/W Assistant function( Rotator )

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Service Manual

Product spec and feature

2.2.4.4 Sensor input circuit

1) Paper Empty Sensor

The Paper Empty sensor (Photo Interrupter) on the SMPS/HVPS PBA is monitored by the CPU on signal(nP_EMPTY, CN3-Pin 1). When the cassette is empty the printer displays a message on the LCD panel.

2) MP Sensing

Presence of paper in the MP tray is detected by operation of the MP Sensor (Photo Interrupter) on the SMPS/HVPS PBA. The CPU monitors signal(MP_EMPTY, CN3-Pin 13) to recognize paper in the MP, and paper is fed from MP if there is paper present.

3) Paper Feed Sensor, (Toner Cartridge Sensor)

When paper passes the actuator on the feed sensor, it is detected by the Photo interrupter. signal(nP_FEED, CN3-Pin 2) monitored by the CPU and this signal starts the process of creating the image after certain delay time If the feed sensor is not detected within 1 sec. after paper is fed, a paper Jam0 occurs. (Displayed on the LCD panel). When a toner cartridge is inserted it also operates the Paper Feed sensor. A message is displayed on the LCD if no cartridge is detected.

4) Paper Exit Sensor

This detects that paper exits cleanly from the Machine using an exit sensor on the engine board and actuator on the frame. The monitors signal(P_EXIT, CN3-Pin 26) and detects the on/off time of the exit sensor and if jam status is detected then JAM2 is displayed the on the LCD panel.

5) Cover Open Senser

The Cover open sensor actuator is located on the front cover and the senor is in the main frame. When the front cover is opened the +24VS to the DC fan, solenoid, main motor, polygon motor part of LSU, HVPS that are cut off. The CPU monitors

signal(COVER_OPEN)

to recognize when the cover is opened.

6) DC FAN / SOLENOID Driving

It is driven by a transistor and controlled by signal(FAN, CN3-Pin 24) bit of the CPU. When it is high the fan is activated by turning on the TR, and it is off when the sleep mode is selected. There are two solenoids and these are driven by the Paper Pick-up and MP signals. The drive time is 300ms. The diode protects the driving TR from the Back-EMF pulse which is generated when the solenoid is de-energized.

7) Motor Driving

The motor driving circuit is activated when the Driver IC is enabled. An A3977 (Motor driver IC) is used in this case. The resistance Rs value of sensing and the voltage value of the V reference can be changed by the motor driving voltage value.

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Product spec and feature

2.2.5 SMPS & HVPS

The SMPS and HVPS are on one integrated board. The SMPS supplies the DC power to the system. It takes either 110V or 220V and outputs the +5V,

-5V/0.5A, 12V and 24V supplies to the main and ADF PBAs. The HVPS creates the high voltage of THV/MHV/Supply/Dev and supplies it to the toner cartridge. The CPU is used to modify some of these voltage settings to provide the ideal voltages to create the image. The HVPS part uses 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.

MAIN PBA CON.

CN3

(FAN CON.)

CN1

(H/L CON.)

F101

250V L2A

EXIT SENSOR

MHV

OPC

DEV

SUPPLY

THV

COVER OPEN SWITCH

MANUAL SENSOR

FEED SENSOR

PAPER-EMPTY SENSOR

110V : 125V/8A

220V : 250V T 5A H

110V : 125V/3A

220V : 250V 2A H

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+ 132 hidden pages

Muratec F-114, F-114P User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual