Samsung SCX-5835NX, SCX-5935NX Service Manual

Service Manual
■ 33 ppm(A4) Network-ready MFP
■ Toner cartridge : Initial : 4K / Sales : 4K,10K
■ Paper handling : 500 sheets Standard cassette : 500 sheets Optional cassette : 50 sheets DADF
The keynote of Product
DIGITAL LASER MFP
SCX-5835NX_5935NX Series
■ 160GB HDD
■ High Performance CCDM
■ Easy to install ( CRU & Option )
■ Color Graphic Touch-Screen LCD (7”)
■ Low Cost per Page
■ Direct USB
GSPN (Global Service Partner Network)
North America : service.samsungportal.com Latin America : latin.samsungportal.com CIS : cis.samsungportal.com Europe : europe.samsungportal.com China : china.samsungportal.com Asia : asia.samsungportal.com Mideast & Africa : mea.samsungportal.com
Samsung Electronics Co.,Ltd. June. 2010 Printed in Korea.
VERSION NO. : 1.00 CODE : 5835-N0000E
chapter 1 Precautions
1.1 Safety Warning …………………………………………………… 1-1
1.2 Caution for safety ………………………………………………… 1-2
1.3 ESD Precautions ………………………………………………… 1-5
1.4 Super Capacitor or Lithium Battery Precautions ……………… 1-5
chapter 2 Product Overview
2.1 Product Overview ………………………………………………… 2-1
2.1.1 Product Summary …………………………………………… 5-1

Contents

2.1.2 Specications ………………………………………………… 2-2
2.1.3 Model Comparison ………………………………………… 2-11
2.2 System Overview ………………………………………………… 2-14
2.2.1 System Conguration ……………………………………… 2-15
2.2.2 Hardware Conguration …………………………………… 2-15
2.2.3 Mechanic Conguration …………………………………… 2-22
chapter 3 Disassembly and Reassembly
3.1 Disassembly and Reassemblyons on Disassembly ………… 3-1
3.2 Maintenance Parts ……………………………………………… 3-2
3.3 General Disassembly …………………………………………… 3-3
3.3.1 Fuser Unit …………………………………………………… 3-3
3.3.2 DADF Pick up unit and rubber pad ……………………… 3-3
3.3.3 Pick up roller ………………………………………………… 3-4
3.3.4 Transfer roller ……………………………………………… 3-4
3.3.5 Cover ………………………………………………………… 3-5
3.3.6 DADF Board ………………………………………………… 3-7
3.3.7 Scan Assy …………………………………………………… 3-8
3.3.8 Middle Cover ………………………………………………… 3-10
3.3.9 HDD/ Main PBA/ Fax board ……………………………… 3-11
3.3.10 SMPS board ……………………………………………… 3-12
3.3.11 Main Drive unit ……………………………………………… 3-12
3.3.12 HVPS board ………………………………………………… 3-13
3.3.13 LSU Unit …………………………………………………… 3-13
chapter 4 Alignment and Troubleshooting
4.1 Alignment and Adjustments ……………………………………… 4-1
4.1.1 Paper path …………………………………………………… 4-1
4.1.2 Clearing Paper Jams ……………………………………… 4-2
Contents
4.1.3 Abnormal Image Printing and Defective Roller …………… 4-13
4.1.4 Control Panel overview …………………………………… 4-15
4.1.5 Understanding The Status LED …………………………… 4-18
4.1.6 Menu overview ……………………………………………… 4-19
4.1.7 Firmware Upgrade ………………………………………… 4-31
4.1.8 Diagnostics …………………………………………………… 4-35
4.2 Troubleshooting…………………………………………………… 4-59
4.2.1 Procedure of Checking the Symptoms …………………… 4-59
4.2.2 Error Message ……………………………………………… 4-60
4.2.3 Solution ……………………………………………………… 4-64
chapter 5 System Diagram
5.1 Block Diagram …………………………………………………… 5-1
5.2 Connection Diagram……………………………………………… 5-3
chapter 6 Reference Information
6.1 Tool for Troubleshooting ………………………………………… 6-1
6.2 Acronyms and Abbreviations …………………………………… 6-2
6.2.1 Acronyms …………………………………………………… 6-2
6.2.2 Service Parts ………………………………………………… 6-4
6.3 The Sample Pattern for the Test ………………………………… 6-8
6.4 Selecting a location ……………………………………………… 6-9
attached Exploded Views & Parts List
Contents
Precautions

1. Precautions

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

1.1 Safety warning

(1) Only to be serviced by a factory trained service technician.
High voltages and lasers inside this product are dangerous. This product should only be serviced by a factory trained service technician.
(2) Use only Samsung replacement parts.
There are no user serviceable parts inside the product. Do not make any unauthorized changes or additions to the product as these could cause the product to malfunctions and create an electric shocks
or re hazards.
(3) Laser Safety Statement
The product is certied 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 certied as a Class I laser product con­forming to the requirements of IEC 825. Class I laser products are not considered to be hazardous. The
laser system and product 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 product with the protective cover removed from Laser/Scanner
assembly. The reected beam, although invisible, can damage your eyes. When using this product, these basic safety pre-cautions should always be followed to reduce risk of re, electric shock, and personal injury.
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Precautions
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Samsung Electronics

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 imaging unit and toner cartridge away from children. The toner powder contained in the
imaging unit and toner cartridge may be harmful, and if swallowed, you should contact a doctor.
1.2.2 Electric shock and re safety precautions
Failure to follow the following instructions could cause electric shock or potentially cause a re.
(1) Use only the correct voltage, failure to do so could damage the product and potentially cause a re or
electric shock.
(2) Use only the power cable supplied with the product. Use of an incorrectly specied cable could cause the
cable to overheat and potentially cause a re.
(3) Do not overload the power socket, this could lead to overheating of the cables inside the wall and could
lead to a re, and/or cause your ceiling or lamp lights to icker.
(4) Do not allow water or other liquids to spill into the product, this can cause electric shock. Do not allow
paper clips, pins or other foreign objects to fall into the product, these could cause a short circuit leading to an electric shock or re hazard.
(5) Never touch the plugs on either end of the power cable with wet hands, this can cause electric shock.
When servicing the product, remove the power plug from the wall socket.
(6) Use caution when inserting or removing the power connector. When removing the power connector, grip it
rmly and pull. The power connector must be inserted completely, otherwise a poor contact could cause overheating possibly leading to a re.
(7) Take care of the power cable. Do not allow it to become twisted, bent sharply around corners or wise
damaged. Do not place objects on top of the power cable. If the power cable is damaged it could overheat and cause a re. Exposed cables could cause an electric shock. Replace the 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 re 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 lightning storms. Samsung recommends 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 product in a clean well ventilated location. Do not position the
machine near a humidier or in front of an air conditioner. Moisture and dust built up inside the machine can lead to overheating and cause a re or cause parts to rust.
(11) Do not position the product in direct sunlight. This will cause the temperature inside the product to rise
possibly leading to the product failing to work properly and in extreme conditions could lead to a re.
(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.
Precautions
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Samsung Electronics
1.2.3 Handling precautions
The following instructions are for your own personal safety to avoid injury and so as not to damage the
product.
(1) Ensure the product is installed on a level surface, capable of supporting its weight. Failure to do so could
cause copy quality problems, and/or the product to tip or fall.
(2) The product contains many rollers, gears and fans. Take great care to ensure that you do not catch your
ngers, 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 product
which if spilled could get into the machine and cause damage or a shock or re hazard.
(4) Do not install the machine in areas with high dust or moisture levels, beside on open window or close to a
humidier or heater. Damage could be caused to the product in such areas.
(5) Do not place candles, burning cigarettes, etc on the product, These could cause a re.
1.2.4 Assembly / Disassembly precautions
Replace parts carefully and always use Samsung 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 product 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 main board or network card is replaced. (2) Ensure that power is disconnected before servicing or replacing any electrical parts. (3) Disconnect 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-tting any parts do not use excessive force, especially when tting screws into
plastic. (6) Take care not to drop any small parts into the machine.
(7) Handling of the OPC Drum
- 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 uorescent or incandescent room lighting. Exposure for as little as 5 minutes can damage the surface of the photoconductive properties and will result in print quality degradation. Take extra care when servicing the product. 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.
Precautions
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Samsung Electronics
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 nger or hair into the rotating parts.
When operating a printer, do not put hand or hair into the rotating parts (Paper feeding entrance, motor,
fan, etc.). If do, you can get harm.
(3) When you move the printer
- When transporting/installing the equipment be sure to hold the positions as shown in the reference
chapter.
The equipment is quite heavy and weighs approximately 23.1Kg (including consumables), therefore pay
full attention when handling it.
- Be sure not to hold the movable parts or units (e.g. the control panel, DADF) when transporting the
equipment.
- Be sure to use a dedicated outlet with 110V/220Vpower input.
- The equipment must be grounded for safety.
- Select a suitable place for installation. Avoid excessive heat, high humidity, dust, vibration and direct
sunlight.
- Provide proper ventilation since the equipment emits a slight amount of ozone.
- To insure adequate working space for the copying operation, keep a minimum clearance of 10cm (3.9”
on the left, 10 cm (3.9”) on the right and 10 cm (3.9”) on the rear.
- The equipment shall be installed near the socket outlet and shall be accessible.
- Be sure to x and plug in the power cable securely after the installation so that no one trips over it.
Precautions
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Samsung Electronics

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 eld 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 classied as “anti-static”
can generate electrical charges sufcient to damage ESDs.
5. Do not use Freon-propelled chemicals. When sprayed, these can generate electrical charges sufcient 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 oor, can generate static electricity sufcient to damage an ESD.
1.4 Super Capacitor or Lithium Battery Precautions
1. Exercise caution when replacing a super capacitor or Lithium battery. There could be a danger of explosion
and subsequent operator injury and/or equipment damage if incorrectly installed.
2. Be sure to replace the battery with the same or equivalent type recommended by the manufacturer.
3. Super capacitor or Lithium batteries contain toxic substances and should not be opened, crushed, or
burned for disposal.
4. Dispose of used batteries according to the manufacture? instructions.
Product spec and feature

2. Product spec and feature

2.1 Product Overview

2.1.1 Product Summary

Premium LMFP with High Reliability and Quality
Target user : 10 Persons N/W Small Workgroup
■ 33 ppm(A4) Network-ready MFP
■ Toner cartridge : Initial : 4K / Sales : 4K,10K
■ Paper handling : 500 sheets Standard cassette : 500 sheets Optional cassette : 50 sheets DADF
■ 160GB HDD
■ High Performance CCDM
■ Easy to install ( CRU & Option )
■ Color Graphic Touch-Screen LCD (7”)
Low Cost per Page
■ Direct USB
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Product spec and feature
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Samsung Electronics
2.1.2 Specications
• Product Specications are subject to change without notice. See below for product specications.
2.1.2.1 General Print Engine
Item Description
Engine Speed Simplex Up to 33 ppm in A4 (35 ppm in Letter)
Duplex Up to 17 ipm in A4 (18 ipm in Letter)
FPOT From Ready Less than 8.5 sec
From Power Save Less than 25 sec
Resolution Optical 600 x 600 dpi
Enhanced Addressible 1200 dpi
Printer Languages PCL6, PostScript3, PDF 1.4, TIFF, EPSON/IBM Pro (Israel only)
Fonts PCL:93 scalable, 1 bitmap, PS:136, OCR Font(OCR-A, OCR-B),
barcode, 2-D barcode
Downloadable Fonts Yes (PCL & PS3 S/W Font)
2.1.2.2 Controller & S/W
Item Description
Processor Chorus3 360Mhz
DRAM Std. 256 MB
Max. 512 MB
Memory Expansion 1 DDR1 SODIMM Slots(Option Memory: 256MB DDR1)
Storage(Std.) 80GB HDD
Printer driver Supporting OS [Windows]
- Windows 2000/XP(32/64bit)/2003(32/64bit)/Vista(32/64bit)/ 2008(32/64bit)
[Linux]
- RedHat 8.0 ~ 9.0
- Fedora Core 1~4
- Madrake 9.2 ~ 10.1
- SuSE 8.2 ~ 9.2
[Mac]
- Mac OS X 10.3~10.5
Default Driver PCL6 (For Windows), PS (for Mac, Linux)
Product spec and feature
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Item Description
Printer driver
(Continue..)
Driver feature [Windows]
- Watermark, Overlay, N-up printing, Poster printing
- Duplex, Quality, Color mode (Color, Gray scale)
- Support Color spec., Device color, color management
[Mac/Linux]
- N-up printing, Duplex, Quality
- Color mode (Color, Gray scale)
WHQL Windows 2000/XP(include 64bit)/2003/Vista
Language
Localization
English, French, German, Italian, Spanish, Korean, Russian, Brazilian Portuguese
Scan driver TWAIN Yes (N/W and USB)
WIA Yes (USB Only)
Supporting OS [Windows]
- Windows 2000/XP(32/64bit)/2003/Vista(32/64bit)
[Linux]
- RedHat 8 ~ 9
- Fedora Core 1~4
- Madrake 9.2 ~ 10.1
- SuSE 8.2 ~ 9.2
[Mac]
- Mac OS 10.3~10.5
Application PC-FAX Yes
NW-FAX Yes (Supported through SmarThru Ofce)
OCR ReadIRIS
Smart Panel Yes (Install default: Windows, Linux, Mac)
Network Management
Set IP, SWAS 4.0 & SWS SWAS Plug-In
- Job Accounting, Storage management, Cloning, Remote Install
* Supported Web Browser:
- IE 5.5 or higher
- FireFox 1.5 or higher
- Safari 1.3 or higher
HDD File
N/A
Management S/W
SmarThru Smarthru Ofce v2.0, SmarThru WorkFlow v2.0 (Optional)
Product spec and feature
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Item Description
Interface Parallel
(IEEE 1284)
USB Hi-Speed USB 2.0 Host (2 channel)
Wired LAN Ethernet 10/100/1000 Base TX
Foreign Device Interface (FDI)
Network
Network OS [Windows]
Interface
No
* Use:
• Front
- Scan to USB
- USB direct printing
- F/W down load for system upgrade
• Rear
- Card Reader w/ Jscribe
Hi-Speed USB 2.0 Peripheral (1Channel)
Optional
- Microsoft Windows
2000/XP(32/64bits)/2003(32/64bits)/Vista(32/64bits) [Mac]
- Mac OS 10.3~10.5
[Linux]
- RedHat 8 ~ 9
- Fedora Core 1~4
- Madrake 9.2 ~ 10.1
- SuSE 8.2 ~ 9.2
[Novell]
- Netware 5.x, 6.x(TCP/IP Only)
[Others]
- Unix(HP-UX,Solaris,SunOS, SCO)
Protocol * TCP/IP :
TCP/IPv4, HTTP, SNMPv1/v2c/V3, LDAP, SMTP, SSL/TLS,
IPSec
IP Addressing Static IP, Auto IP, BOOTP, DHCP
SNMP/MIB Access Host Resource MIB(RFC 2790), Printer MIB(RFC 3805)
Finisher MIB(RFC(3806), Samsung private MIB, SNMP Trap
User Interface LCD 800 x 480 7 WVGA Color graphic LCD with Touch-Screen, 16bit
color
Product spec and feature
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Samsung Electronics
2.1.2.3 Scan
Item Description
Scan method Color CCDM
Compatibility TWAIN(USB & N/W), WIA(Only for USB)
Color Mode Mono / Gray / Color
Scan Speed Color/Mono. Gray 0.73msec/line @600*600dpi
Mono Binary 0.365msec/line @300*300dpi
Resolution Optical 600 x 600ppi
Enhanced 4,800 x 4,800ppi
Gray Scale 256 levels
Scan Size Max. Document
Max.216mm(8.5)
Width
Efective Scan
Max 208mm(8.2inch)
Width
Max. Document
Max.356mm (Legal)
Length
Scan Depth Color Internal : 36 bits
External : 24 bits
Mono - 1bit for Linearity & Halftone
- 8Bits for Gray scale
Image Compression PDF,JPEG,BMP,TIFF
Product spec and feature
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Samsung Electronics
2.1.2.4 Copy
Item Description
Copy Speed
(DADF)
SDMC (Single Document Multiple Copy)
MDSC (Multiple Document Single Copy)
FCOT From Ready Platen : Less than 9.5 sec
Zoom Range 25% ~ 400% in 1% increments (Platen)
Multi Copy 1~999
Original Type Text Platen: Scan 600x600dpi , Printing 600x600dpi
Simplex: up to 33 cpm in A4 (35 cpm in Letter) Duplex : up to 17 cpm in A4 (18 cpm in Letter)
Simplex: up to 29 cpm in A4 (30 cpm in Letter) Duplex : up to 12 cpm in A4 (13 cpm in Letter)
DADF : Less than 11.5 sec
25% ~ 200% in 1% increments (DADF)
DADF: Scan 300x300dpi, Printing 600x600dpi
Text/Photo Platen: Scan 600x600dpi, Printing 600x600dpi
DADF: Scan 300x300dpi, Printing 600x600dpi
Photo Platen: Scan 600x600dpi, Printing 1200x1200dpi
DADF: Scan 300x300dpi, Printing 600x600dpi
Reduce & Enlarge * Zoom Range : 25% to 400% in Platen, 25% to 200% in ADF
* Preset
[Original(100%)] [Auto Fit] [A4 → A5(71%)] [LGL→LTR(78%)] [LGL→A4(83%)] [A4→LTR(94%)] [EXE→LTR(104%)] [A5 → A4(141%)] 25%, 50%,150%, 200%, 400% [Custom:25-400%)]
Duplex Copy Using Platen
- 1 → 1Sided
- 1 → 2Sided
Using DADF
- 1 → 1Sided
- 1 → 2Sided Short,
- 1 → 2Sided Long,
- 2 → 1Sided
- 2 → 1Sided, Rotate Side2
- 2 → 2Sided Short
- 2 → 2Sided Long
Product spec and feature
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2.1.2.5 Fax
Item Description
Compatibility ITU-T G3
Communication System PSTN/PABX
Modem Speed 33.6Kbps
TX Speed 3sec (Mono/Standard/ECM-MMR, ITU-T G3 No.1 Chart)
Compression MH/MR/MMR/JBIG/JPEG
Color Fax Yes (TX only)
ECM Yes
Resolution
(Mono)
Std 203*98dpi
Fine 203*196dpi
S.Fine 300*300dpi
Resolution
(Color)
Std 200*200dpi (TX Only)
Fine 200*200dpi (TX Only)
S.Fine 200*200dpi (TX Only)
Scan speed Platen 0.365msec/line at 300*300dpi
DADF 0.365msec/line at 300*300dpi
Telephone Features
Speed Dial 200 Locations
One touch dial NONE
Chain Dial NONE
Manual Dial Yes
Last Number
Yes
Redial
Automatic Redial
Yes
Transmission
Pause Yes
Flash No
Handset & Cradle NONE
Ringer Volume OFF. LOW, MEDIUM, HIGH
Tone/Pulse Select Selectable in Tech Mode
VoIP Support Yes. ( The communication in VoIP network is supported, but
the fax quality may be fallen. Beacause the purpose of VoIP network is not fax but Internet network for voice. )
Product spec and feature
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2.1.2.6 Paper Handling
Item Description
Bypass Tray Capacity Plain paper : 50 sheets
Transparency : 5 sheets Envelopes : 5 sheets
Media sizes 76.2x127 mm(3x5) ~ 215.9x355.6mm (8.5x14.0)
Banner Size Printing : 216mm x 900mm
Media type Printer Default, Plain Paper, Thick Paper, Thin Paper, Bond
Paper, Color Paper, CardStock, Labels, Transparency, Envelope, Preprinted, Cotton, Recycled Paper, Archive
Media weight 16~43lb (60 to 163g/m²)
Standard Cassette Tray
Capacity 500 sheets @ 20lb (80g/m²)
Media sizes Letter, Legal, Ocio, Folio, A4, JIS B5, ISO B5, Executive, A5
Media types Plain Paper, Thin Paper, Pre-Printed, Recycled, Thick, Archive
Media weight Plain Paper : 75~90 g/m²
Thin Paper : 60~70 g/m² Thick Paper : 90~105 g/m² Pre-Printed : 75~90 g/m² Recycled : 60~90 g/m² Duplex : 75~90 g/m²
Optional
Cassette
Tray(SCF)
Optional
Cassette
Tray(SCF) (Continue..)
Capacity 500 sheets @ 20lb (80g/m²), drawer type
Media sizes Letter, Legal, Ocio, Folio, A4, JIS B5, ISO B5, Executive, A5
Media types Plain Paper, Thin Paper, Pre-Printed, Recycled, Thick, Archive
Media weight Plain Paper : 75~90 g/m²
Thin Paper : 60~70 g/m² Thick Paper : 90~105 g/m² Pre-Printed : 75~90 g/m² Recycled : 60~90 g/m² Duplex : 75~90 g/m²
Output Stacking 250 sheets @ 20lb (80g/m²)
DADF Capacity 50 sheets ( 20lb, 80g/m²)
2-sided Document
Yes (Reversing)
Scanning
Document Size Width: 145 ~ 216mm (5.7~8.5)
Length : 145 ~ 356mm (5.7 ~ 14.0) for Single page scan
145 ~ 400mm (5.7 ~ 15.7) for Multi pages scan
Bank Check Scan : 69.6mm x 152.4mm
Document Weight 12.5~28lb
Product spec and feature
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2.1.2.7 Consumables (CRU)
Item Description
Toner Cartridge MLT-D206S Average Continuous Black Cartridge Yield: 4,000* standard
pages
* Declared yield value in accordance with ISO/IEC 19752
MLT-D206L Average Continuous Black Cartridge Yield: 10,000* standard
pages
* Declared yield value in accordance with ISO/IEC 19752
2.1.2.8 Consumables (FRU)
Item Item Description
DADF Rubber Pad JC97-03069A 50,000 feeds
DADF Pick-up Assembly JC97-03070A 100,000 feeds
Pick up roller JC97-02441C 150,000 feeds
Transfer Roller JC66-01181A 100,000 images
Fuser Unit JC96-05064A(220V)
JC96-05063A(110V)
100,000 images
Product spec and feature
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2.1.2.9 Service & Environment
Item
AMPV Max Monthly Duty MPBF ( Mean Page Between Failure) MTTR (mean time to repari) Temperature
Humidity
Input Voltage Noise
Power Consumption
Dimensions (WxDxH) Weight (with consumables)
Operating 10℃ ~ 32℃ Storage 20℃ ~ 40℃ Operating 20~80% RH Storage 10~90% RH
Printing Simplex / Duplex Copying Simplex / Duplex Standby 39 dB Ready Less than 100W AVG. Less than 750W Power save Less than 25W Power off 0W
Description
2500 pages/month (A4 size, IDC 5% coverage) 75,000 pages/month (A4 size, IDC 5% coverage) 50,000 pages 30 minutes
AC 110-127V or AC 220-240V 52 dB
54 dB
500x465x547 mm
23.1Kg
Item Description
Optional Tray (SCF) SCX-S5835A 500 sheets feeder
Memory CLP-MEM202 256 MB
Jscribe SCX-KIT10J JScribe Related S/W Enabler
Product spec and feature
Service Manual
2-11
Samsung Electronics

2.1.3 Model Comparison

Printer
Copy
SAMSUNG SCX-5835NX SCX-5935NX
Image
Speed
(A4/Ltr.)
Copy size A4 A4 Legal Legal
Resolution 1,200 x 1,200 dpi 1,200 x 1,200 dpi 1,200 x 1,200 dpi 1,200 x 1,200 dpi
Emulation
Duplex Print Standard Standard Option Standard
Speed 35cpm 35cpm 35cpm 35cpm (Estimated)
Resolution 600dpi 600 dpi 600 dpi 600 dpi (Estimated)
Zoom 25 – 400% 25 – 400% 25 – 400%
33ppm/35ppm 33ppm/35ppm 43ppm/45ppm 38ppm/40ppm
PCL5e, PCL6, PS,
PDF1.5
HP
LJ M3035
PCL5, PCL6, PS,
PDF1.5
Lexmark
X642e
PCL5, PCL6, PS,
PDF1.5
Lexmark
New 4dte
PCL5, PCL6, PS,
PDF1.5
25 – 400%
(Estimated)
Scan Resolution 600dpi 600dpi 600dpi 600dpi (Estimated)
Fax
Paper
Handling
General
Modem
Speed
Memory HDD Backup
DADF 50sh. 50 sh 50sh. 50sh.
Input
Tray(Std.)
Memory
Std.(Max)
Toner 4K, 10K
33.6 Kbps LJ-M3035xs Only 33.6 Kbps 33.6 Kbps
HDD Backup
(LJ-M3035xs Only)
500 sh. Tray
50 sh. MP
256MB(512MB) 128MB(640MB) 256MB(?)
500 sh. Tray
100 sh. MP
Q7551x
(13,000 sh.)
- HDD Backup
500 sh. Tray
100 sh. MP
10K, 21K 9K, 15K
2 x 250 sh. Tray
50 sh. MP
Product spec and feature
Service Manual
2-12
Samsung Electronics

2.2 System Overview

■ Front View
1 Document feeder cover 11 Multi-purpose tray
2 Document feeder width guides 12 Front cover
3 Document feeder input tray 13 Document output tray
4 Document feeder output tray 14 USB memory port
5 Front cover handle 15 Control panel
6 Multi-purpose tray handle 16 Toner cartridge
7 Handle 17 Multi-purpose tray paper width guides
8 Paper level indicator 18 Scanner lid
9 Optional tray 2
10 Tray 1 20 Scanner glass
[a] Optional device.
[a]
19 Scanner lock switch
Product spec and feature
Service Manual
2-13
Samsung Electronics
■ Rear View
1 USB host port 6 Duplex unit
2 USB port 7 Rear cover
3 Network port 8 Power receptacle
4 Telephone line socket 9 Power-switch
5 Extension telephone socket (EXT) 10 Control board cover
Product spec and feature
Service Manual
2-14
Samsung Electronics
■ System Layout
520 sh. Cassette
Scanner / DADF
5
4
3
2
1
500 sh. Cassette
Scanner / DADF
5
4
3
2
1
1 OP Panel / 7 “ LCD Touch Screen
2 Toner Cartridge
3 MP Roller
4 Fuser Unit
5 Duplex Unit
Product spec and feature
Service Manual
2-15
Samsung Electronics
HVPS
MAIN PBA
OPE PBA
DADF PBA
SMPS
Fax Board
HVPS
MAIN PBAMAIN PBA
OPE PBA
DADF PBA
SMPSSMPS
Fax Board
2.2.1 System Conguration
SCX-5835NX_5935NX Series consist of Main Control Part, Operation Panel Part, Scanner Part, Line Interface Part ,Power Part and Optional DIMM(Dual-In-Memory Module) for Scan-To-Email. Main Controller is commonly applied in all products, SCX-5835NX_5935NX Series, and in case of necessary a part of components or Module is selectively adopted in accordance with required feature of each model.
2.2.2 Hardware Conguration
Product spec and feature
Service Manual
2-16
Samsung Electronics
4-1. Main Board
Scan MOTIC
CHORUS3(ASIC)
Flash Memory
USB IC
DDR2 DIMM
Network IC
4-1. Main Board
Scan MOTIC
CHORUS3(ASIC)
Flash Memory
USB IC
DDR2 DIMM
Network IC
2.2.2.1 Main Controller
The Main Control Part comprises 1 CPU and 1 B’D by adopting the dedicated Controller for Fax & LBP. The Scanner Part comprises DADF& CCD and connected with Main board through Harness.
Product spec and feature
Service Manual
2-17
Samsung Electronics
CPU (CHORUS3)
It uses the ARM 926EJS, 32Bit RISC Processor, which is dedicated Controller for Printer & Fax function and drives the each internal Operation Block by system program of Flash Memory and thereby controlling the whole System.
- Main Function Block : Completely Integrated System for Embedded Applications,
 32 Bit RISC Architecture, Efcient and Powerful ARM 926EJS Core. LSU Interface Module for Interfacing PVC or HPVC with LSU Dual Memory Bus Architecture
- Operation Frequency : AHB Bus: 133MHz, Internal System Bus: 120MHz
- Operation Power : 3.3V / 1.0V(core)
Flash Memory
It stores system program, Fonts data(PCL, PS/3), and can download the system program through PC Interface or Network.
- Capacity: 32M Byte
- Access Time : 80 nsec
System Memory (DDR2)
It is used as Swatch Buffer for Printing, Scan Buffer for Scanning and System Working Memory Area.
- System memory: 256MB Capacity
- Max Frequency: 120 MHz
System Data Memory (EEPROM + Flash Memory)
This memory, which is for storing the operation variable & the setting parameter of Elbert2, keeps the information.
Optional Memory (DIMM)
SCX-5835NX_5935NX Series provide one (1) Extension Slot for extending Memory. The RAM Extension
Slot can be used for:
General Memory Extension
256 MB Optional Memory is available.
Product spec and feature
Service Manual
2-18
Samsung Electronics
Fuse 5V
Fuse 5V
Fuse 24V
Fuse 24V
Fuse 5V
Fuse 5V
Fuse 5V
Fuse 5V
Fuse 24V
Fuse 24V
Fuse 5V
Fuse 5V
2.2.2.2 SMPS board
SMPS( Switching Mode Power Supply ) Board supplies electric power to a Main Board and other boards through a Main Controller by +5V,+24V from 110V/220V power input. It has safety protection modes for over current and load.
Product spec and feature
Service Manual
2-19
Samsung Electronics
DC Output Connector( CON3 )
Description PIN NO PIN ASSIGN PIN NO Description
Fuser ON
(Active High)
Fuser_On 1 2 24VS
Power
(Photo Triac Bias)
Power +24V 3 4 GND +24V Ground
Power +24V 5 6 GND +24V Ground
Power +24V 7 8 GND +24V Ground
Power +24V 9 10 GND +24V Ground
Power +5V 11 12 GND +5V Ground
Power +5V 13 14 GND +5V Ground
Relay On Relay_On 15 16 OFF/SINK +24V On/OFF
AC Input Connector( CON1 )
SMPS → Heater Controller( CON2 )
PIN ASSIGN PIN NO Description
1 AC_L
AC Input
2 AC_N
PIN ASSIGN PIN NO Description
1 AC_L
AC Output
for Heater
2 AC_N
Product spec and feature
Service Manual
2-20
Samsung Electronics
2.2.2.3 HVPS board
HVPS(High Voltage Power Supply)
HVPS Part outputs the generated high voltage for THV/MHV/BIAS/DETACH/FUSER BIAS by inputting 24V, and the output high voltage is provided into OPC Cartridge and Transfer Roller.
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