Samsung ML-3750ND User manual

ML-375x Series
User’s Guide
Basic
imagine the possibilities
This guide provides information concerning installation, basic operation and troubleshooting on
windows.

1. Introduction
This chapter provides information you need to know before using the
machine.
•Keybenefits 3
•Featuresbymodels 5
•Usefultoknow 6
• About this user’s guide 7
• Safety information 8
• Machine overview 14
• Control panel overview 17
• Turning on the machine 18
• Installing the driver locally 19
• Reinstalling the driver 20

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Key benefits
Environmentally friendly
• To save toner and paper, this machine supports Eco feature.
• To save paper, you can print multiple pages on one single sheet of
paper (see Advanced Guide).
• To save paper, you can print on both sides of the paper (double-
sided printing) (see Advanced Guide).
• To save electricity, this machine automatically conserves electricity
by substantially reducing power consumption when not in use.
Print with excellent quality and speed
• You can print with a resolution of up to 1,200 x 1,200 dpi effective
output.
• Fast, on-demand printing.
- For single-side printing, 35 ppm (A4) or 37 ppm (Letter).
- For duplex printing, 17 ppm (A4) or 18 ppm (Letter).
Convenience
• Samsung Easy Printer Manager and Samsung Printer Status (or Smart
Panel) are a program that monitors and informs you of the machine’s
status and allows you to customize the machine’s settings (see
Advanced Guide).
• AnyWeb Print helps you screen-capture, preview, scrap, and print
the screen of Windows Internet Explorer more easily, than when you
use the ordinary program (see Advanced Guide).
Wide range of functionality and application support
• Supports various paper sizes (see "Print media specifications" on
page 79).
• Print watermark: You can customize your documents with words,
such as “Confidential” (see Advanced Guide).
• Print posters: The text and pictures of each page of your document
are magnified and printed across the multiple sheets of paper and
can then be taped together to form a poster (see Advanced Guide).

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Key benefits
• You can print in various operating systems (see "System requirements" on page 82).
• Your machine is equipped with a USB interface and/or a network interface.
Expand your machine’s capacity
• This machine has an extra memory slot for adding more memory (see "Available accessories" on page 48).
• Emulation compatible with PostScript 3 (PS3) enables PS printing.

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Features by models
Some features and optional goods may not be available depending on model or country.
( ●: Included, ○: Optional, Blank: Not available)
Features ML-3750ND ML-3753ND
Hi-Speed USB 2.0 port 1 ● ●
Hi-Speed USB 2.0 port 2 ●
IEEE 1284 parallel connector ○ ○
Network Interface Ethernet 10/100/1000 Base TX wired LAN ● ●
IPv6 ● ●
Eco printing ● ●
Duplex (2-sided) printing ● ●
Samsung Easy Printer Manager ● ●
Memory ○ ○
Tray 2 (520 sheets) ○ ○
SyncThru™ Web Service ● ●
PCL printer driver ● ●
PS printer driver ● ●
XPS printer driver ● ●

Useful to know
The machine does not print.
• Open the print queue list and remove the document from
the list (see "Canceling a print job" on page 40).
• Remove the driver and install it again (see "Installing the
driver locally" on page 19).
• Select your machine as your default machine in your
Windows.
Where can I purchase accessories or supplies?
• Inquire at a Samsung distributor or your retailer.
• Visit www.samsung.com/supplies. Select your country/
region to view product service information.
The status LED flashes or remains constantly on.
• Turn the product off and on again.
• Check the meanings of LED indications in this manual
and troubleshoot accordingly (see "Understanding the
status LED" on page 69).
A paper jam has occurred.
• Open and close the front door.
• Check the instructions on removing jammed paper in this
manual and troubleshoot accordingly (see "Clearing
paper jams" on page 63).
Printouts are blurry.
• The toner level might be low or uneven. Shake the toner
cartridge.
• Try a different print resolution setting.
• Replace the toner cartridge.
Where can I download the machine’s driver?
• Visit www.samsung.com/printer to download the latest
machine’s driver, and install it on your system.

7
1. Introduction
About this user’s guide
This user's guide provides information for your basic understanding
of the machine as well as detailed steps to explain machine usage.
• Read the safety information before using the machine.
• If you have a problem using the machine, refer to the
troubleshooting chapter.
• Terms used in this user’s guide are explained in the glossary
chapter.
• All illustrations in this user’s guide may differ from your machine
depending on its options or model you purchased.
• The screenshots in this user's guide may differ from your machine
depending on the machine’s firmware/driver version.
• The procedures in this user’s guide are mainly based on Windows
7.
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1
Conventions
Some terms in this guide are used interchangeably, as below:
• Document is synonymous with original.
• Paper is synonymous with media, or print media.
• Machine refers to printer or MFP.
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2
General icons
Icon Text Description
Caution
Gives users information to protect the
machine from possible mechanical damage
or malfunction.
Note
Provides additional information or detailed
specification of the machine function and
feature.

8
1. Introduction
Safety information
These warnings and precautions are included to prevent injury to
you and others, and to prevent any potential damage to your
machine. Be sure to read and understand all of these instructions
before using the machine. After reading this section, keep it in a safe
place for future reference.
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3
Important safety symbols
Explanation of all icons and signs used in this chapter
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4
Operating environment
Warning
Warning Hazards or unsafe practices that may result in
severe personal injury or death.
Caution Hazards or unsafe practices that may result in
minor personal injury or property damage.
Do not attempt.
Do not use if the power cord is damaged or if the
electrical outlet is not grounded.
This could result in electric shock or fire.
Do not place anything on top of the machine (water,
small metal or heavy objects, candles, lit cigarettes, etc.).
This could result in electric shock or fire.
• If the machine gets overheated, it releases smoke,
makes strange noises, or generates an odd odor,
immediately turn off the power switch and unplug the
machine.
• The user should be able to access the power outlet in
case of emergencies that might require the user to pull
the plug out.
This could result in electric shock or fire.
Do not bend, or place heavy objects on the power cord.
Stepping on or allowing the power cord to be crushed by
a heavy object could result in electric shock or fire.

Safety information 9
1. Introduction
Caution
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5
Operating method
Caution
Do not remove the plug by pulling on the cord; do not
handle the plug with wet hands.
This could result in electric shock or fire.
During an electrical storm or for a period of non-
operation, remove the power plug from the electrical
outlet.
This could result in electric shock or fire.
Be careful, the paper output area is hot.
Burns could occur.
If the machine has been dropped, or if the cabinet
appears damaged, unplug the machine from all
interface connections and request assistance from
qualified service personnel.
Otherwise, this could result in electric shock or fire.
If the plug does not easily enter the electrical outlet, do
not attempt to force it in.
Call an electrician to change the electrical outlet, or this
could result in electric shock.
Do not allow pets to chew on the AC power, telephone
or PC interface cords.
This could result in electric shock or fire and/or injury to
your pet.
If the machine does not operate properly after these
instructions have been followed, unplug the machine
from all interface connections and request assistance
from qualified service personnel.
Otherwise, this could result in electric shock or fire.
Do not forcefully pull the paper out during printing.
It can cause damage to the machine.
Be careful not to put your hand between the machine
and paper tray.
You may get injured.

Safety information 10
1. Introduction
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6
Installation / Moving
Warning
Caution
Do not block or push objects into the ventilation
opening.
This could result in elevated component temperatures
which can cause damage or fire.
Be care when replacing paper or removing jammed
paper.
New paper has sharp edges and can cause painful cuts.
When printing large quantities, the bottom part of the
paper output area may get hot. Do not allow children to
touch.
Burns can occur.
When removing jammed paper, do not use tweezers or
sharp metal objects.
It can damage the machine.
Do not allow too many papers to stack up in the paper
output tray.
It can damage the machine.
This machine's power reception device is the power cord.
To switch off the power supply, remove the power cord
from the electrical outlet.
Do not place the machine in an area with dust, humidity,
or water leaks.
This could result in electric shock or fire.
Before moving the machine, turn the power off and
disconnect all cords.
Then lift the machine:
• If the machine weighs under 20 kg (44.09 lbs), lift with
1 person.
• If the machine weighs 20 kg (44.09 lbs) - 40kg (88.18
lbs), lift with 2 people.
• If the machine weighs more than 40 kg (88.18 lbs), lift
with 4 or more people.
The machine could fall, causing injury or machine
damage.

Safety information 11
1. Introduction
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7
Maintenance / Checking
Caution
Do not place the machine on an unstable surface.
The machine could fall, causing injury or machine
damage.
The machine should be connected to
the power level which is specified on the label.
If you are unsure and want to check the power level you
are using, contact the electrical utility company.
Use only No.26 AWGaor larger, telephone line cord, if
necessary.
Otherwise, it can cause damage to the machine.
Do not put a cover over the machine or place it in an
airtight location, such as a closet.
If the machine is not well-ventilated, this could result in
fire.
Make sure you plug the power cord into a grounded
electrical outlet.
Otherwise, this could result in electric shock or fire.
Do not overload wall outlets and extension cords.
This can diminish performance, and could result in
electric shock or fire.
Use the power cord supplied with your machine for safe
operation. If you are using a cord which is longer than 2
meters (6 feet) with a 110 V machine, then the gauge
should be 16 AWG or larger.
Otherwise, it can cause damage to the machine, and
could result in electric shock or fire.
a. AWG: American Wire Gauge
Unplug this product from the wall outlet before
cleaning the inside of the machine. Do not clean the
machine with benzene, paint thinner or alcohol; do not
spray water directly into the machine.
This could result in electric shock or fire.
When you are working inside the machine replacing
supplies or cleaning the inside, do not operate the
machine.
You could get injured.

Safety information 12
1. Introduction
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8
Supply usage
Caution
Keep the power cable and the contact surface of the
plug clean from dust or water.
Otherwise, this could result in electric shock or fire.
• Do not remove any covers or guards that are
fastened with screws.
• Fuser units should only be repaired by a certified
service technician. Repair by non-certified
technicians could result in fire or electric shock.
The machine should only be repaired by a Samsung
service technician.
Keep cleaning supplies away from children.
Children could get hurt.
Do not disassemble, repair or rebuild the machine by
yourself.
It can damage the machine. Call a certified technician
when the machine needs repairing.
To clean and operate the machine, strictly follow the
user's guide provided with the machine.
Otherwise, you could damage the machine.
Do not disassemble the toner cartridge.
Toner dust can be dangerous if inhaled or ingested.
Do not burn any of the supplies such as toner cartridge
or fuser unit.
This could cause an explosion or uncontrollable fire.
When changing the toner cartridge or removing
jammed paper, be careful not to let toner dust touch
your body or clothes.
Toner dust can be dangerous if inhaled or ingested.
When storing supplies such as toner cartridges, keep
them away from children.
Toner dust can be dangerous if inhaled or ingested.
Using recycled supplies, such as toner, can cause
damage to the machine.
In case of damage due to the use of recycled supplies, a
service fee will be charged.

Safety information 13
1. Introduction
When toner gets on your clothing, do not use hot water
to wash it.
Hot water sets toner into fabric. Use cold water.

14
1. Introduction
Machine overview
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9
Accessories
Power cord Quick installation guide
Software CDa
a. The software CD contains the printer driver and applications.
Misc. accessoriesb
b. Miscellaneous accessories included with your machine may vary by country of purchase and specific
model.

Machine overview 15
1. Introduction
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10
Front view
1Output tray 4 Front cover 7 Tray 1 10 Paper width guides on a multi-purpose tray
2Control panel 5 Paper level indicator 8 Multi-purpose tray 11 Output support
3Control board cover 6Tray 2 9Multi-purpose tray paper
extension
1
8
7
6
3
4
5
2
9
10
11

Machine overview 16
1. Introduction
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11
Rear view
• This illustration may differ from your machine depending on its model.
• Some features and optional goods may not be available depending on model or country.
1Network port 4 IEEE 1284 parallel connector power supply jack 7 Duplex unit
2USB port 1 5 Power-switch 8 Rear cover
3USB port 2a(ML-3753ND only)
a. Two USB ports allow you to connect a printer to two separate computers. Printer drivers need to be installed on both computers for this operation. Double
connections from a printer to a single computer through the USB ports can result in serious damage to the printer and computer.
6Power receptacle 9Tray back cover
7
6
1
3
2
4
5
8
9

17
1. Introduction
Control panel overview
1Display Shows the current status and
prompts during an operation.
2(Menu) Enters menu mode and scrolls
through the available menus.
3OK Confirms the selection on the
display.
1
2
3
4
8
7
6
5
9
10
4(Back) Sends you back to the upper menu
level.
5
Numeric keypad
Use the keypad to enter numbers
and characters. It is useful for
entering IP addresses. (see "Entering
characters using the number
keypad" on page 24).
6(Cancel) Stops an operation at any time.
7(Power) You can turn the power on and off
with this button.
8(Status
LED)
Shows the status of your machine
(see "Status LED" on page 70).
9
Eco
Enters eco mode to reduce toner
consumption and paper usage (see
"Eco options" on page 43).
10
Arrows
Navigates available values by
moving to the next or previous
options.

18
1. Introduction
Turning on the machine
1Connect the machine to the electricity supply first.
Turn on the power switch.
2 If it is turned off, press the (Power) button, then release.

19
1. Introduction
Installing the driver locally
A locally connected machine is a machine directly attached to your
computer using the cable. If your machine is attached to a network,
skip the following steps below and go on to installing a network
connected machine’s driver (see Advanced Guide).
• If you are a Macintosh, Linux, or Unix OS user, refer to the
Advanced guide.
• The installation window in this User’s Guide may differ
depending on the machine and interface in use.
•SelectingCustom Installation allows you to choose
which programs to install.
• Only use a USB cable no longer than 3 meters (118 inches ).
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12
Windows
1Make sure that the machine is connected to your computer
and powered on.
If the “Found New Hardware Wizard” appears during the
installation procedure, click Cancel to close the window.
2 Insert the supplied software CD into your CD-ROM drive.
The software CD should automatically run and an installation
window will appear.
3 Select Install Now.
4 Read License Agreement, and select I accept the terms of
the License Agreement. Then, click Next.
5 Follow the instructions in the installation window.

20
1. Introduction
Reinstalling the driver
If the printer driver does not work properly, follow the steps below to
reinstall the driver.
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13
Windows
1Make sure that the machine is connected to your computer
and powered on.
2 From the Start menu, select Programs or All Programs >
Samsung Printers > your printer driver name > Uninstall.
3 Follow the instructions in the installation window.
4 Insert the software CD into your CD-ROM drive and install the
driver again (see "Installing the driver locally" on page 19).