Samsung ProXpress M332x, ProXpress M382x, ProXpress 402x Service Manual

Name: Samsung ProXpress M332x
Brand: Samsung
SKU: 2594236
Rating: 4.4 (15 reviews)

4.4 (15)

Mono Laser Printer

ProXpress M332x / M382x / 402x

series

(Ver 1.32)

SERVICEMANUAL

Mono Laser Printer

Contents

1. Precautions

2. Product Specifications

3. Disassembly and Reassembly

4. Troubleshooting

5. System Diagram

6. Reference Information

Refer to the service manual in the GSPN (see the rear cover) for more information.

Contents

1.	Precautions ......................................................................................................................................				1	−	1
	1.1.	Safety warning ........................................................................................................................			1	−	1
	1.2.	Caution for safety ....................................................................................................................			1	−	2
		1.2.1.	Toxic material.............................................................................................................		1	−	2
		1.2.2. Electric shock and fire safety precautions .........................................................................			1	−	2
		1.2.3.	Handling precautions ...................................................................................................		1	−	4
		1.2.4. Assembly and Disassembly precautions...........................................................................			1	−	4
		1.2.5. Disregarding this warning may cause bodily injury ............................................................			1	−	5
	1.3.	ESD precautions......................................................................................................................			1	−	6
2.	Product Specifications........................................................................................................................				2	−	1
	2.1.	Specifications..........................................................................................................................			2	−	1
		2.1.1.	Product Overview........................................................................................................		2	−	1
		2.1.2.	Specifications .............................................................................................................		2	−	2
			2.1.2.1.	General .......................................................................................................	2	−	2
			2.1.2.2.	Print ...........................................................................................................	2	−	3
			2.1.2.3.	Controller and Software..................................................................................	2	−	4
			2.1.2.4.	Paper Handling.............................................................................................	2	−	5
			2.1.2.5.	Consumables................................................................................................	2	−	7
			2.1.2.6.	Maintenance Part ..........................................................................................	2	−	8
	2.2.	Product Description..................................................................................................................			2	−	9
		2.2.1.	Front View.................................................................................................................		2	−	9
		2.2.2.	Rear View	..................................................................................................................	2	− 10
		2.2.3.	Paper Path..................................................................................................................		2	− 11
		2.2.4.	System layout .............................................................................................................		2	− 12
			2.2.4.1.	Feeding Part.................................................................................................	2	− 13
			2.2.4.2.	Image Creation .............................................................................................	2	− 15
			2.2.4.3.	Fuser unit ....................................................................................................	2	− 17
			2.2.4.4. LSU (Laser Scanning Unit) .............................................................................		2	− 18
			2.2.4.5.	Drive Unit ...................................................................................................	2	− 19
		2.2.5.	Hardware configuration ................................................................................................		2	− 20
			2.2.5.1.	Main Controller (M332x_M382x_M402xND) ....................................................	2	− 23
			2.2.5.2.	Main Controller (M402xNX)...........................................................................	2	− 27
			2.2.5.3.	OPE Controller.............................................................................................	2	− 29
			2.2.5.4.	SO-DIMM PBA............................................................................................	2	− 30
			2.2.5.5.	WLAN(M382xDW model only) ......................................................................	2	− 31
			2.2.5.6.	SCF PBA - Optional ......................................................................................	2	− 31
			2.2.5.7.	CRUM PBA.................................................................................................	2	− 32
			2.2.5.8.	SMPS Board ................................................................................................	2	− 33

i	Copyright© 1995-2013 SAMSUNG. All rights reserved.

Contents

	2.2.5.9.	HVPS board.................................................................................................	2	− 34
2.2.6.	Engine Firmware Control Algorithm ...............................................................................		2	− 35
	2.2.6.1.	Feeding .......................................................................................................	2	− 35
	2.2.6.2.	Transfer.......................................................................................................	2	− 35
	2.2.6.3.	Fusing.........................................................................................................	2	− 36
	2.2.6.4.	LSU............................................................................................................	2	− 36
2.2.7.	Software Descriptions ..................................................................................................		2	− 37
	2.2.7.1.	Software system overview ..............................................................................	2	− 37
	2.2.7.2.	Architecture .................................................................................................	2	− 37
	2.2.7.3. Data and Control Flow ...................................................................................		2	− 38
3. Disassembly and Reassembly ..............................................................................................................			3	−	1
3.1. Precautions when replacing parts ................................................................................................			3	−	1
3.1.1.	Precautions when assembling and disassembling ...............................................................		3	−	1
3.1.2.	Precautions when handling PBA.....................................................................................		3	−	1
3.1.3.	Releasing Plastic Latches..............................................................................................		3	−	2
3.2. Screws used in the printer..........................................................................................................			3	−	3
3.3. Replacing the Main SVC parts ...................................................................................................			3	−	4
3.3.1.	Left and Right Cover....................................................................................................		3	−	4
3.3.2.	Front Cover................................................................................................................		3	−	5
3.3.3.	Rear and Top Cover .....................................................................................................		3	−	6
3.3.4.	Main Board ................................................................................................................		3	−	8
3.3.5.	HVPS board ...............................................................................................................		3	−	9
3.3.6.	SMPS Board...............................................................................................................		3	− 10
3.3.7.	Laser Scanning Unit (LSU) ...........................................................................................		3	− 10
3.3.8.	Fuser Unit	..................................................................................................................	3	− 11
3.3.9.	Main Drive Unit..........................................................................................................		3	− 12
3.3.10.	Feed Drive Unit ..........................................................................................................		3	− 13
3.3.11.	Pick Up_Regi_MP Clutch .............................................................................................		3	− 13
3.3.12.	Pick-Up Roller............................................................................................................		3	− 14
3.3.13.	Transfer Roller............................................................................................................		3	− 15
3.3.14.	OPE Board.................................................................................................................		3	− 15
3.3.15.	MP Unit ....................................................................................................................		3	− 17
3.3.16.	Bin-full sensor ............................................................................................................		3	− 17
3.3.17.	Regi_Feed_Empty Sensor .............................................................................................		3	− 18
3.3.18.	Reverse Roller ...........................................................................................................		3	− 19
3.3.19.	SCF(Second Cassette Feeder) Unit .................................................................................		3	− 20
	3.3.19.1.	SCF Right Cover...........................................................................................	3	− 20
	3.3.19.2.	SCF Main Board ...........................................................................................	3	− 20
	3.3.19.3.	SCF Main Motor...........................................................................................	3	− 21
	3.3.19.4.	SCF Clutch ..................................................................................................	3	− 21

Contents

			3.3.19.5. SCF pick up _ forward roller .............................................................................		3	− 22
			3.3.19.6.	SCF Reverse Roller .......................................................................................	3	− 22
			3.3.19.7. SCF Main Drive Unit .....................................................................................		3	− 23
			3.3.19.8.	SCF Lift Assy...............................................................................................	3	− 23
			3.3.19.9.	SCF Pick-Up Unit .........................................................................................	3	− 24
			3.3.19.10. SCF Pick - Up _ Empty _ Feed Sensor ...................................................................		3	− 25
4.	Troubleshooting................................................................................................................................				4	−	1
	4.1.	Alignment and Adjustments.......................................................................................................			4	−	1
		4.1.1.	Control Panel ..............................................................................................................		4	−	1
		4.1.2. Understanding The Status LED ......................................................................................			4	−	4
		4.1.3.	Clearing paper jams .....................................................................................................		4	−	5
		4.1.4. Useful menu item for service .........................................................................................			4	− 17
		4.1.5.	Periodic Defective Image ..............................................................................................		4	− 19
		4.1.6.	Useful management tools ..............................................................................................		4	− 20
			4.1.6.1. Using Samsung Easy Printer Manager ...............................................................		4	− 20
			4.1.6.2. Using Samsung Printer Status (Windows only) ...................................................		4	− 22
			4.1.6.3. Using SyncThru Web Service (SWS) ................................................................		4	− 23
		4.1.7.	Updating Firmware ......................................................................................................		4	− 25
			4.1.7.1. Update the firmware by using the USB port ........................................................		4	− 25
			4.1.7.2. Update the firmware by using the network ..........................................................		4	− 26
		4.1.8.	Service Mode .............................................................................................................		4	− 28
	4.2.	Troubleshooting ......................................................................................................................			4	− 32
		4.2.1. Procedure of checking the symptoms...............................................................................			4	− 32
			4.2.1.1.	Basic Check List ...........................................................................................	4	− 33
		4.2.2. Error Code and Troubleshooting.....................................................................................			4	− 34
		4.2.3.	Image quality problem ..................................................................................................		4	− 62
		4.2.4.	Other errors ................................................................................................................		4	− 68
5.	System Diagram................................................................................................................................				5	−	1
	5.1. Block Diagram (ProXpress M332x_382x_402xND) .......................................................................				5	−	1
	5.2. Block Diagram (ProXpress M402xNX)........................................................................................				5	−	2
	5.3. Connection Diagram (ProXpress M332x_M382x_M402xND)..........................................................				5	−	3
	5.4. Connection Diagram (ProXpress M402xNX) ................................................................................				5	−	4
6.	Reference Information........................................................................................................................				6	−	1
	6.1.	Tool for Troubleshooting...........................................................................................................			6	−	1
	6.2.	Glossary	.................................................................................................................................		6	−	2
	6.3. The Sample ..................................................................................................Pattern for the Test				6	−	8
	6.4. Model Name .............................................................................................................and Code				6	−	9
	6.5.	Document ............................................................................................................Revision List			6	− 10

iii	Copyright© 1995-2013 SAMSUNG. All rights reserved.

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 fire hazards.

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 I(1) laser products, and elsewhere is certified as a Class I laser product conforming to the requirements of IEC 60825-1. 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.

•Wavelength: 800 nm

•Beam divergence

-Paraller: 11 degrees

-Perpendicular: 35 degrees

•Maximum power of energy output: 12 mW

WARNING

Never operate or service the product 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 precautions should always be followed to reduce risk of fire, electric shock, and personal injury.

1-1

1. Precautions

1.2. Caution for safety

1.2.1. Toxic material

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

1)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 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 product and potentially cause a fire or electric shock.

2)Use only the power cable supplied with the product. 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 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 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 product, remove the power plug from the wall socket.

6)Use caution when inserting or removing the power cord. When removing the power cord, grip it firmly and pull. The power cord must be inserted completely, otherwise a poor contact could cause overheating leading to a fire.

1-2	Copyright© 1995-2013 SAMSUNG. All rights reserved.

1. Precautions

7)Take care of the power cable. Do not allow it to become twisted, bent sharply around corners or power cable may be damaged. Do not place objects on top of the power cable. If the power cable is damaged it could overheat and cause a fire. 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 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 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 humidifier or in front of an air conditioner. Moisture and dust built up inside the machine can lead to overheating and cause a fire 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 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.

13)	When replacing the SMPS board, please wait 5 minutes after unplugging the power cord, then replace it. You

can get a shock by the electric discharge.

1-3

1. 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 product.

1)Ensure the product is installed on a level surface, capable of supporting its weight. Failure to do so could cause 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 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 product 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 caused to the product in such areas.

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

6)Ensure that the machine is installed and used in proper area to meet the temperature and humidity specifications.

•If the machine is stored at below zero Celsius for a long time, do not use the machine instantly after movement. It can malfunction. Take care of the machine storage. If the machine is stored at below zero Celsius for a long time, keep the machine at room temperature and install it.

1.2.4. Assembly and Disassembly precautions

1)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.

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-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 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 fluorescent 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.

1-4	Copyright© 1995-2013 SAMSUNG. All rights reserved.

1. 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 unit to cool down before disassembly.

2)Do not put fingers 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, use safe lifting and handling techniques.

This printer is heavy. 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.

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.

1-5

1. 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.

1-6	Copyright© 1995-2013 SAMSUNG. All rights reserved.

2. Product Specifications

2.1. Specifications

2.1.1. Product Overview

1)Speed

•M332x series : Up to 33 ppm in A4 (35 ppm in Letter)

•M382x series : Up to 38 ppm in A4 (40 ppm in Letter)

•M402x series : Up to 40 ppm in A4 (42 ppm in Letter)

2)Processor

•600 MHz (M332x series / M382x series / M402xND)

•600 MHz + 1GHz (M402xNX)

3)Printer Languages

•PostScript3, PCL6/5e, IBM ProPrinter, EPSON, SPL

4)Memory (Std / Max)

•M332xND / M382xD : 128 MB / 128 MB

•M382xND/DW : 128 MB / 512 MB

•M402xND : 256 MB / 512 MB

•M402xNX : 1GB / 1GB

5)Interfaces

•High-Speed USB 2.0

•Wired Network

•M382xD : Not Support

•M332xND, M382xND, M382xDW : Ethernet 10/100 Base Tx

•M402xND, M402xNX : Ethernet 10/100/1G Base Tx

•Wireless Network

•M382xDW Only : 802.11b/g/n

6)Consumables

•Integrated Toner System

:M3320ND / M3820D/ M3820ND / M3820DW / M4020ND / M4020NX

•Separated Toner System

:M3325ND / M3825D/ M3825ND / M3825DW / M4025ND / M4025NX

2-1

2. Product Specifications

2.1.2. Specifications

•Product Specifications are subject to change without notice.

2.1.2.1. General

Item		Specification
Temperature	Operating	10 to 30 °C (50 to 86°F)

	Storage	-20 to 40 °C (-4 to 104 °F)

Humidity	Operating	20 to 80% RH

	Storage	10 to 90% RH

Noise Level	Printing	•	M332x/M382x series: Less than 54 dB (A)
		• M402x series: Less than 56 dB (A)

Power Consumption	Ready mode	• M332x/M382x series & M402xND : Less than 10 Wh
		• M402xNX : Less than 15 Wh

	Average operating mode	Less than 700 W

	Power save mode	• M332x/M382x series & M402xND : Less than 1.1 Wh
			(M382xDW - Wi-Fi Direct on: Less than 2.8Wh / off : 1.6Wh)
		• M402xNX : Less than 3.9 Wh

Dimension (W x D x H)	Set (mm)	366.5 x 368 x 256.5 mm (14.42 x 14.48 x 10.09 inches)

Weight	Set (Kg)	10 Kg (22.04 lbs)

Reliability & Service	Recommended Monthly	• M332xND : 1000 ~ 2500 pages
	Printing Volume (AMPV)	• M382x series : 1500 ~ 3500 pages
		• M402x series : 2000 ~ 4000 pages

	Max. Monthly Print	•	M332xND : 50,000 pages
	Volume	•	M382x series : 80,000 pages
		•	M402x series : 100,000 pages

2-2	Copyright© 1995-2013 SAMSUNG. All rights reserved.

2. Product Specifications

2.1.2.2. Print

Item		Specification
Engine Speed	Simplex	•	M332x series
			• Up to 33 ppm in A4 (35 ppm in Letter)
		•	M382x series
			• Up to 38 ppm in A4 (40 ppm in Letter)
		•	M402x series
			• Up to 40 ppm in A4 (42 ppm in Letter)

	Duplex	•	M332x series
			• Up to 16 ipm in A4 (17 ipm in Letter)
		•	M382x series
			• Up to 19 ipm in A4 (20 ipm in Letter)
		•	M402x series
			• Up to 20 ipm in A4 (21 ipm in Letter)

FPOT	Ready Mode	As fast as 6.5 sec

	Sleep Mode	• M332x series : Less than 15.5 sec
		• M382x / 402x series : Less than 18 sec

Resolution	Optical (Standard)	600 x 600 dpi

	Enhanced	Up to 1,200 x 1,200 dpi effective output

Emulation		PostScript3, PCL6/5e, IBM ProPrinter, EPSON, SPL

2-3

2. Product Specifications

2.1.2.3. Controller and Software

Item		Specification
Processor		•	M332x/M382x series & M402xND : 600MHz
		•	M402xNX : 1GHz

Memory	Standard	•	M332x series : 128 MB
		•	M382x series : 128 MB
		•	M402xND : 256 MB
		•	M402xNX : 1 GB

	Max	•	M332x series : 128 MB
		•	M382xD : 128 MB
		•	M382xND/DW : 512 MB
		•	M402xND : 512 MB
		•	M402xNX : 1GB

Driver	Supporting OS	[Window]
		• XP (32 / 64 bit) / 2003 Server (32/64 bit) / Vista (32/64 bit)
			/ 2008 server (32/64 bit) / 7 (32/64 bit) / 2008 Server R2 / 8
			(32/64bit)
		[Mac]
		• X 10.5 ~ 10.8

		[Linux]
		• RedHat Enterprise WS 4, 5, 6 (32/64 bit)
		• Fedora 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 (32/64 bit)
		• OpenSuSE 10.2, 10.3, 11.0, 11.1, 11.2, 11.3, 11.4 (32/64 bit)
		• SuSE Linux Enterprise Desktop 10, 11 (32/64 bit)
		• Debian 4.0, 5.0, 6.0 (32/64 bit)
		• Mandriva 2007, 2008, 2009, 2009.1, 2010 (32/64 bit)
		• Ubuntu 6.06, 6.10, 7.04, 7.10, 8.04, 8.10, 9.04, 9.10, 10.04,
			10.10, 11.04 (32/64 bit)
		[Unix]
		• HP-UX 11.0, 11i v1, 11i v2, 11i v3 (PA-RISC, Itanium)
		• Sun Solaris 9, 10, 11 (x86, SPARC)

Network Protocols		[TCP/IP]
		• TCP/IPv4/IPv6, HTTP, SNMPv1/v2c/v3, SMTP, IPSec,
			DNS/WINS, DDNS, DHCP, SSL/TLS, BOOTP, AutoIP,
			Standard TCP/IP printing, LPR, IPP,UPnP(SSDP), Bonjour,
			Telnet, WSD, SLP, SetIP
		[Others]
		• HTTPs,IPPs, 802.1x(EAP-MD5, EAP-MSCHAPv2, PEAP,
			TLS), IPSec

2-4	Copyright© 1995-2013 SAMSUNG. All rights reserved.

2. Product Specifications

Item	Specification
Interface	•	High-Speed USB 2.0
	•	Wired Network
		•	M382xD : Not Support
		• M332xND, M382xND, M382xDW : Ethernet 10/100
			Base Tx
		• M402xND, M402xNX : Ethernet 10/100/1G Base Tx
	•	Wireless Network
		•	M382xDW Only : 802.11b/g/n

User Interface	•	M332xND / M382xD : LED Only
	• M382xND / M382xDW / M402xND : 2–Line LCD
	•	M402xNX : 4.3 inch LCD

Software and Application	•	Admin Deployment Application
	•	Easy Printer Manager

2.1.2.4. Paper Handling

Item		Specification
		•	M332xND / M382xD
			• 250-sheet Cassette Tray @80g/m²
Standard Capacity			•	1–sheet Manual Feeder
Standard Capacity		• M382xND / M382xDW / M402xND / M402xNX
		• M382xND / M382xDW / M402xND / M402xNX
			• 250-sheet Cassette Tray @80g/m²
			• 50–sheet Multi Purpose Tray @80g/m²

		•	M332xND
			• 771 sheet (@80g/m² ) with option cassette
		•	M382xD
			•	251 sheet @80g/m²
Max. Capacity
Max. Capacity				NOTE
				NOTE
				M382xD does not support the option cassette.

		• M382xND / M382xDW / M402xND / M402xNX
			• 820 sheet (@80g/m² ) with option cassette

Printing		•	Max. Size : 216 x 356 mm (8.5" x 14")
Printing		•	Min. Size : 76 x 127 mm (3.0" x 5.0")
		•	Min. Size : 76 x 127 mm (3.0" x 5.0")

		[M382xND / M382xDW / M402xND / M402xNX]
	Capacity	•	Plain Paper : 50 sheets @ 80g/m²
		•	Envelop : 5 sheets

	Media sizes	A4, A5, A6, Letter, Legal, Folio, Oficio, Executive, ISO B5, JIS B5,
Multi-purpose tray	Media sizes	3"x5", Envelope (Monarch, No.10, DL, C5, C6), Custom
Multi-purpose tray		3"x5", Envelope (Monarch, No.10, DL, C5, C6), Custom
	Media type	Plain, Thin, Thick, Thicker, Cotton, Colored, Envelope, Transparency,
	Media type	Pre-Printed, Recycled, Labels, Bond, Card stock, Archive
		Pre-Printed, Recycled, Labels, Bond, Card stock, Archive

	Media weight	16~58 lb (60 to 220 g/m²)

	Sensing	Paper Empty

2-5

2. Product Specifications

Item		Specification
	Capacity	250 sheets @ 80 g/m²

	Media sizes	A4, A5, A6, Letter, Legal, Folio, Oficio, Executive, ISO B5, JIS B5,
	Media sizes	Custom
Standard Cassette Tray		Custom

	Media types	Plain Paper, Thin, Thick, Recycled, Bond, Cardstock, Archive
	Media types

	Media weight	16~43 lb (60 to 163 g/m²)

	Sensing	Paper Empty

	Capacity	520 sheets @ 80 g/m²

	Media sizes	A4, A5, A6, Letter, Legal, Folio, Oficio, Executive, ISO B5, JIS B5

Optional Cassette Tray	Media types	Plain Paper, Thin, Thick, Recycled, Bond, Cardstock, Archive

	Media weight	16~43 lb (60 to 163 g/m²)

	Sensing	CST Open, Paper Empty

	Capacity	• Face-Down : 150 sheets @ 80 g/m²
Output Stacking	Capacity	• Face-Up : 1 sheet
Output Stacking		• Face-Up : 1 sheet
	Output Full sensing	Yes

	Supporting	Built-in

Duplex	Media sizes	A4, Letter, Oficio, Folio, Legal

	Media types	Plain Paper, Thin, Thick, Recycled, Bond
	Media types	Plain Paper, Thin, Thick, Recycled, Bond

	Media weight	16~32 lb (60 to 120 g/m²)

		• Envelop : 10 mm (0.4") from edge (Top, Bottom, Left, Right)
Printable Area	Non-Printable Area	• Other Media : 4 mm (0.16") from edge (Top, Bottom, Left,
		Right)

2-6	Copyright© 1995-2013 SAMSUNG. All rights reserved.

2. Product Specifications

2.1.2.5. Consumables

NOTE

M332x/ M382x/ M402x series have 2 types of consumable depending on model.

•Integrated Toner System : M3320ND / M3820D/ M3820ND / M3820DW / M4020ND / M4020NX

•Separated Toner System : M3325ND / M3825D/ M3825ND / M3825DW / M4025ND / M4025NX

Integrated Toner System

				M3820D	M4020ND
Item	Model Name	Average yield	M3320ND	M3820ND	M4020ND
Item	Model Name	Average yield	M3320ND	M3820ND	M4020NX
				M3820DW	M4020NX
				M3820DW
Laser Toner	MLT-D203S	Approx. 3,000 pages	O	O	O
Cartridge
Cartridge	MLT-D203L	Approx. 5,000 pages	O	O	O
	MLT-D203L	Approx. 5,000 pages	O	O	O

	MLT-D203E	Approx. 10,000 pages	X	O	O

	MLT-D203U	Approx. 15,000 pages	X	X	O

NOTE

•The yield of initial toner cartridge is approx. 3,000 pages.

•Declared cartridge yield in accordance with ISO/IEC 19752.

Separated Toner System

				M3825D	M4025ND
Item	Model Name	Average yield	M3325ND	M3825ND	M4025ND
Item	Model Name	Average yield	M3325ND	M3825ND	M4025NX
				M3825DW	M4025NX
				M3825DW
Toner Cartridge	MLT-D204S	Approx. 3,000 pages	O	O	O

	MLT-D204L	Approx. 5,000 pages	O	O	O

	MLT-D204E	Approx. 10,000 pages	X	O	O

	MLT-D204U	Approx. 15,000 pages	X	X	O

Imaging Unit	MLT-R204	Approx. 30,000 pages	O	O	O

NOTE

•The yield of initial toner cartridge is approx. 3,000 pages.

•Declared cartridge yield in accordance with ISO/IEC 19752.

2-7

2. Product Specifications

2.1.2.6. Maintenance Part

Some of the machine’s parts have shorter life span than machine’s life.

To ensure that the machine produces good copies and to extend its service life, it is recommended that these maintenance parts at specific intervals be replaced as instructed.

Item	Part Code		Life
Tray1 Pick up roller	JC73-00340A		Approx. 90,000 pages

Tray1 Separation(Reverse) roller	JC90-01063B		Approx. 60,000 pages

Transfer roller	JC66-02842A		Approx. 100,000 pages

Fuser Unit	•	JC91-01023A (110V)	Approx. 90,000 pages
	•	JC91-01024A (220V)

Tray2 Pick up / Forward roller	JC97-02259A		Approx. 200,000 pages
(Optional)

Tray2 Separation(Reverse) roller	JC97-02259A		Approx. 100,000 pages
(Optional)

2-8	Copyright© 1995-2013 SAMSUNG. All rights reserved.

2. Product Specifications

2.2. Product Description

This chapter describes the functions and operating principal of the main component.

2.2.1. Front View

NOTE

•This illustration may differ from your machine depending on your model. There are various types of machine.

•Some features and optional goods may not be available depending on model or country

1		Control Panel
2		Control board cover
3		Front cover
4		Paper level indicator
5		Tray 2
6		Tray 1
7		Multi-purpose (or manual feeder) tray
8		Output tray
9		Paper width guides on a multi-purpose (or manual
		feeder) tray
10		Toner cartridge

		NOTE
		M3320/M3820/M4020 series only.

11 Toner cartridge

NOTE

M3325/M3825/M4025 series only.

12 Imaging unit

NOTE

M3325/M3825/M4025 series only.

13 Output support

2-9

2. Product Specifications

2.2.2. Rear View

NOTE

•This illustration may differ from your machine depending on your model. There are various types of machine.

•Some features and optional goods may not be available depending on model or country

1	EDI port
2	Network port
3	USB port
4	5V output port for IEEE 1284B parallel connector

		NOTE
		The optional IEEE 1284B parallel connector can be used by plugging in both the USB port and the
		5V output port.


5	Power-switch
6	Power receptacle
7	Duplex unit
8	Rear cover

9	Tray back cover

2-10	Copyright© 1995-2013 SAMSUNG. All rights reserved.

2. Product Specifications

2.2.3. Paper Path

The following diagram displays the path the paper follows during the printing process.



Copyright© 1995-2013 SAMSUNG. All rights reserved.		2-11

Samsung ProXpress M332x, ProXpress M382x, ProXpress 402x Service Manual

2. Product Specifications

2.2.4. System layout

This model consists of the Engine parts, Hardware and Firmware. The engine parts consists of the mechanical parts comprising Frame, Duplex, Toner cartridge, Drive unit, Transfer roller, Fuser, Cassette. The Hardware part consists of the main control board, power board, operation panel, PC Interface.

1LSU (Laser Scanning Unit)

2Toner Cartridge

3Regi. Roller

4MP

5Feed Roller

6Pick-Up Roller

7Cassette

8Duplex Unit

9Fuser

10Exit Roller1

11Exit Roller2

2-12	Copyright© 1995-2013 SAMSUNG. All rights reserved.

2. Product Specifications

2.2.4.1. Feeding Part

It consists of a cassette, an MP tray for supplying different types of media (envelope, label, special paper) and parts related to paper feed initialization.

1) Cassette

The paper trays consist of the Main trays, Optional trays (SCF), and one Multi-Purpose (MP) tray. The basic cassette is located on front side of the machine and allows feeding of common paper. Paper size is set using the Size Guides in each tray. Adjust the Paper length/width guides to match the paper size.

2) Pick up / Reverse(Retard) roller

When pickup takes place, the pickup roller rotates to separate and transport the paper. The pickup roller rotates when the pickup clutch is activated. The retard roller serve to make sure that a single sheet of paper is moved to the paper path, and the paper is moved as far as the registration roller by the work of the feed roller. The following is a diagram of the pickup section :

3) Registration roller

It is used as an anti skew device, and to setup proper registration timing with that of the toned image on the drum. It also is used for jam detection to ensure paper has left the paper tray.

2-13

2. Product Specifications

4) MP Tray

The multi-purpose tray can hold special sizes and types of print material, such as postcards, note cards, and envelopes. It is useful for single page printing on letterhead or colored paper. It uses 3 rollers feeding method to feed 50 sheets of general papers.

5) Duplex Unit

It has paper transferring function, paper guide function, jam removing function. It is designed for basic attachment, and the duplex feeding takes a side feeding method. Usable papers are A4, letter, and legal size paper. For removing a jam occurred in a front part, it is designed to open a cassette and a guide. It is designed to open a rear cover to remove a jam in a rear part. If a face up tray is open, the duplex option cannot be used.

6) SCF (Second Cassette Feeder)

It is the same method with the main cassette, and the capacity is 520 sheets. It has a separate driving mechanism. It is designed for a common use with a main cassette.

2-14	Copyright© 1995-2013 SAMSUNG. All rights reserved.

2. Product Specifications

2.2.4.2. Image Creation

1) Printing process overview

This mono printing system includes the LSU with a laser beam, a toner cartridge and transfer roller.

This machine uses toner cartridge and laser beam for mono printing.

M332x/M382x/M402x series has 2 types of toner cartridge. M3320/M3820/M4020 series has the integrated toner system and M3325/M3825/M4025 series has the separated toner system. The separated toner system consists of toner cartridge and imaging unit. The imaging unit has an OPC drum, cleaning blade etc.

The OPC drum is charged with a negative voltage by the charge roller and is exposed by the light from the LSU (Laser Scanning unit). The light produced by a laser creates a latent image by discharging on the surface of the OPC drum. The negatively charged toners are attracted to the latent image due to and electric field. The toners (real image) on the OPC drum are moved to the transfer media by the positive bias applied to the transfer roller.

1)Charging the OPC drum : The scorotron gives the drum negative charges.

2)Laser exposure : Light produced by a laser diode irradiates the charged OPC through the lens and mirrors.

3)Development : This machine uses a dual-component development system . The magnetic roller carries negatively charged toner to the latent image on the drum surface.

4)Transfer : The transfer rollers opposite the OPC drums transfer toner from the drums to the transfer media (e.g. paper, OHP film, etc).

5)Cleaning for OPC drum: The cleaning blade removes remaining toners on the drum surface after image transfer to the paper.

2-15

2. Product Specifications

2) Integrated / Separated Toner System

By using the electronic photo process, it creates a visual image.

M3320/M3820/M4020 series

M3325/M3825/M4025 series

Integrated Toner System

Separated Toner System

•Operation condition : Temp 10~30 , Humidity 20~85% RH

•Developing Method : Non magnetic 1 element contacting method

•Toner : Non magnetic 1 element shatter type toner

•Toner Residual Sensor : Dot count with zCRUM

•OPC Cleaning : Collect the toner by using cleaning blade

•Handling of wasted toner : Collect the wasted toner in the cleaning frame by using cleaning blade

•OPC Drum Protecting Shutter : None

•Classifying device for toner cartridge: ID is classified by CRUM.

2-16	Copyright© 1995-2013 SAMSUNG. All rights reserved.

2. Product Specifications

2.2.4.3. Fuser unit

It is consisted of a halogen lamp, heat roller, pressure roller, thermistor and thermostat. It sticks the toner on a paper by heat and pressure to complete the printing job.

1)Thermostat

When a heat lamp is overheated, a Thermostat cuts off the main power to prevent overheating.

•Thermostat Type : NonContact type

•Control Temperature : 190 ± 5

2)Thermistor

It is a temperature detecting sensor.

•Temperature Resistance : 7 KΩ(180 )

3)Heat roller

The heat roller transfers the heat from the lamp to apply a heat on the paper.

The surface of a heat roller is coated with Teflon, so toner does not stick to the surface.

4)Pressure roller

A pressure roller mounted under a heat roller is made of a silicon resin, and the surface also is coated with Teflon. When a paper passes between a heat roller and a pressure roller, toner adheres to the surface of a paper permanently.

5)Halogen Lamp

•Voltage : 120 V, 115 ± 5 % / 220 V, 230 ± 5 %

•Capacity : 850 Watt ± 42.5W

2-17

2. Product Specifications

2.2.4.4. LSU (Laser Scanning Unit)

It is the core part of the LBP which switches from the video data received to the controller to the electrostatic latent image on the OPC drum by controlling laser beam, exposing OPC drum, and turning principle of polygon mirror. The OPC drum is turned with the paper feeding speed. The HSYNC signal is created when the laser beam from LSU reaches the end of the polygon mirror, and the 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 paper. The one side of the polygon mirror is one line for scanning.

OPC Drum

Photo Diode
	Polygon Mirror
	Polygon Motor
LD Driver circit	Motor Driver
LD Driver circit
LD(Laser Diode)
Protector panel

2-18	Copyright© 1995-2013 SAMSUNG. All rights reserved.

2. Product Specifications

2.2.4.5. Drive Unit

ProXpress M332x/M382x/M402x series has 2 drive units that is assembled to the right side of the machine. The main drive unit consists of a BLDC motor, a clutch, various gears for OPC, fuser, exit, feed etc.

The feed drive unit consists of 2 gears for MP, feed.

2-19

2. Product Specifications

2.2.5. Hardware configuration

ProXpress M332x / M382x / M402x series Electrical Circuit system consists of the following :

•Main controller

•OPE controller

•DDR3 SODIMM

•SCF board (Option)

•SMPS board

•HVPS board

•WLAN Module (M382xDW only)

•MICRO SD 4GB (M402xNX only)

Diagram of the M332xND/382xD/382xND/382xDW/402xND Series Electrical Circuit

The main controller controls all modules required to print, that is, LSU, HVPS, SMPS, FAN, Fuser, etc.

The main controller receives print data from the host through network or USB Port. It takes this information and generates printable video bitmap data. Engine and Video Controller are not separated.

The Main Controller adopts the A1500(600MHz) CPU, DIMM PBA on DDR3 memory to perform printing jobs successfully. The OPE controller displays the status of the system using 16 x 2line LCD in response to user actions or the main controller. M3320ND/ M3325ND/ M3820D/ M3825D model only supports LED OPE without LCD module.

The HVPS supplies high voltage for developing process. High Voltage controlled by PWM signal from CPU. SMPS makes +5V and +24V DC from 220V or 110 AC.

WLAN module is used for wireless communication.

2-20	Copyright© 1995-2013 SAMSUNG. All rights reserved.

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