STP-131SG - Label printer SAMSUNG - Free user manual and instructions

Product Type	Label Printer
Model	STP-131SG
Printing Method	Thermal Line Printing
Dot Density	180 x 180 dpi (7 dots/mm)
Printing Width	72 mm
Paper Width	80 mm
Characters per Line (default)	42 (Font A, 12x24) / 56 (Font B, 9x24)
Printing Speed	23 lines/sec (75 mm/sec)
Receive Buffer Size	15K Bytes
Supply Voltage (Adapter Input)	100–240 VAC, 50/60 Hz
Adapter Output Voltage	24 VDC
Operating Temperature	5°C to 40°C
Storage Temperature	-10°C to 50°C
Operating Humidity	30% to 80% RH
Storage Humidity	10% to 90% RH (except paper)
Interfaces	RS-232 Serial (STP-131S) / Parallel (STP-131P)
Peripheral Drive	Cash drawer kick-out connector
Character Scaling	Up to 64 times original size
Barcode Printing	Yes, via barcode command
DIP Switch Settings	Baud rate, density, handshaking, auto cut, parity, etc.
Auto Cutter Life	1,000,000 cuts
Print Head Life	100 km
Label Material	PET

Frequently Asked Questions - STP-131SG SAMSUNG

How do I install the paper roll?

Open the paper roll cover by pulling it up. Ensure the printer is turned on before replacing the paper. Insert the roll with the correct direction (as indicated by the arrows in the manual). Close the cover firmly at the center to avoid paper misloading. Tear off the paper as shown.

What should I do if the ERROR LED is blinking?

The red ERROR LED blinks fast when the paper is out. If it blinks slowly, the near-end sensor is triggered (paper almost out). Also, both LEDs are off when the printer cover is open. Check the paper roll and cover status.

How do I connect the printer to a computer?

Ensure both the printer and host are turned off. Use the appropriate interface cable (RS-232 serial or parallel). Plug the cable into the printer's interface connector and tighten the screws. Attach the other end to the computer.

What is the self-test function and how do I run it?

The self-test checks printer functionality. Make sure paper is installed. Turn on the printer while holding down the FEED button. The printer will print status and then pause. Press FEED to continue printing a character pattern. It ends automatically with a cut.

How do I change the baud rate or print density using DIP switches?

Refer to the DIP switch tables in the manual. For example, to set baud rate 9600, set DIP Switch 1: SW1=OFF, SW2=OFF, SW3=ON. For print density, set SW4: ON=Dark, OFF=Normal. Always turn off the printer before changing DIP switches.

Can I use a third-party power adapter?

No. You must use only the supplied adapter. Using other adapters is dangerous and may cause fire or damage.

What should I do if strange smoke or odor comes from the printer?

Immediately switch off the printer and unplug it from the mains. Wait for the smoke to disappear, then contact your dealer for repair.

How do I clean the printer?

The manual does not specify detailed cleaning instructions, but general safety: do not let water or foreign objects enter the printer. If needed, unplug and wipe exterior with a dry cloth. For internal cleaning, contact a dealer.

What paper types are supported?

Use thermal paper rolls with thickness 0.062–0.075 mm, roll diameter max 83 mm, and spool inside diameter 12 mm, outside 18 mm. Do not use rolls with paper glued to the core as it prevents correct paper-end detection.

How do I enable hexadecimal dump mode for troubleshooting?

Set DIP Switch 2, SW7 to ON. Turn on the printer. Run software that sends data. The printer will print hexadecimal codes and ASCII characters. To exit, set SW7 back to OFF.

USER MANUAL STP-131SG SAMSUNG

Line drawing of a printer with paper filter and buttons (no text or symbols)

■ Safety Precautions

In using the present appliance, please keep the following safety regulations in order to prevent any hazard or material damage.

WARNING

Violating following instructions can cause serious injury or death.

Do not plug several products in one multi-outlet.

• This can provoke over-heating and a fire.
- If the plug is wet or dirty, dry or wipe it before usage.
- If the plug does not fit perfectly with the outlet, do not plug in.
- Be sure to use only standardized multi-outlets.

You must use only the supplied adapter.

- It is dangerous to use other adapters.

Do not pull the cable to unplug.

- This can damage the cable, which is the origin of a fire or a breakdown of the printer.

Keep the plastic bag out of children's reach.

- If not, a child may put the bag on his head.

Do not plug in or unplug with your hands wet.

- You can be electrocuted.

Do not bend the cable by force or leave it under any heavy object.

• A damaged cable can cause a fire.

CAUTION

Violating following instructions can cause slight wound or damage the appliance.

If you observe a strange smoke, odor or noise from the printer, unplug it before taking following measures.

• Switch off the printer and unplug the set from the mains.
  • After the disappearance of the smoke, call your dealer to repair it.

TO UNPLUG

Keep the desiccant out of children's reach.

- If not, they may eat it.

PROHIBITED

Cartoon illustration of a baby wearing a cap and holding a small object (no text or symbols)

Install the printer on the stable surface.

- If the printer falls down, it can be broken and you can hurt yourself.

PROHIBITED

Use only approved accessories and do not try to disassemble, repair or remodel it for yourself.

• Call your dealer when you need these services.
• Do not touch the blade of auto cutter.

DISASSEMBLING PROHIBITED

Do not let water or other foreign objects in the printer.

- If this happened, switch off and unplug the printer before calling your dealer.

PROHIBITED

Do not use the printer when it is out of order. This can cause a fire or an electrocution.

- Switch off and unplug the printer before calling your dealer.

TO UNPLUG

■ Warning - U.S.A

This equipment has been tasted and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and uses in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

This equipment has been tasted and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

■ Notice - Canada

This Apparatus complies with class "A" limits for radio interference as specified in the Canadian department of communications radio interference regulations.

■ Waste Electrical and Electric Equipment (WEEE)

This marking shown on the product or its literature, indicates that is should not be disposed with other household wastes at the end of its working life. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate this from other types of wastes and recycle it responsibly to promote the sustainable reuse of material resources. Household users should contact either the retailer where they purchased this product, or their local government office, for details of where and how they can take this item for environmentally safe recycling. Business users should contact their supplier and check the terms and conditions of the purchase contract. This product should not be mixed with other commercial wastes for disposal.

■ Label Material : PET

Caution

Some semiconductor devices are easily damaged by static electricity. You should turn the printer "OFF", before you connect or remove the cables on the rear side, in order to guard the printer against the static electricity. If the printer is damaged by the static electricity, you should turn the printer "OFF".

■ Introduction

The STP-131 Series Roll Printer are designed for use with electronic instruments such as system ECR, POS, banking equipment peripheral equipment, etc.

The main features of the printer are as follows:

1. High speed printing : 23 lines per second.
2. Low noise thermal printing.
3. RS-232(STP-131S Series), Parallel(STP-131P Series)
4. The data buffer allows the unit to receive print data even during printing.
5. Peripheral units drive circuit enables control of external devices such as cash drawer.
6. Characters can be scaled up to 64 times compared to it's original size.
7. Bar code printing is possible by using a bar code command.
8. Different print densities can be selected by DIP switches.

Please be sure to read the instruction in this manual carefully before using your new STP-131 Series.

NOTE※

The socket-outlet shall be near the equipment and it shall be easy accessible.

※ All specifications are subjected to change without notice.

Table of Contents

1. Setting Up the Printer....7

1-1 Unpacking....7
1-2 Functions 8
1-3 Adjustments and Settings 8

2. Connecting the cables....9

2-1 Connecting the Power Supply 9
2-2 Connecting the Interface Cables ...... 10
2-2-1 STP-131S Serial Interface....11
2-2-2 STP-131P Parallel Interface 12

2-3 Connecting the Drawer.... 13

3. Setting the Dip Switches.... 14

4. Roll Paper Installation 15

5. Self Test.... 17

6. Hexadecimal Dumping ...... 18

7. Specification 19

1. Setting Up the Printer

1-1 Unpacking

Your printer box should include these items.

If any items are damaged or missing, please contact your dealer for assistance.

Line drawing of a generic electronic device resembling a scanner or printer (no text or symbols)

STP-131 Printer

Roll Paper Manual

Line drawing of a device with a coiled cable and two ports (no text or symbols)

Line drawing of a cable and plug assembly (no text or symbols)

AC Adapter Power Cable

CD

※ Interface Cable (Option)

Line drawing of two connected electronic devices with a coiled cable (no text or symbols)

25 pin 25 pin 9 pin 25 pin

Illustration of two connected D-subscribers via a coiled cable (no text or symbols)

Parallel Cable Serial Cable

1-2 Functions

FEED Button

Press the FEED button once to advance paper one line.

You can also hold down the FEED button to feed paper continuously

Indicator Lights

POWER (green)

The POWER light is on whenever the printer is on.

ERROR (red)

The error LED blinks fast when paper is out.

The error LED blinks when the Near End Sensor triggered.

NOTE※

Both Power and Error LED is blank when the Printer Cover is open.

1-3 Adjustments and Settings

The STP-131 Series is set up at the factory to be appropriate for almost all users. It does, however, offer some settings for users with special requirements.

It has DIP switches that allow you to change communication settings, such as handshaking and parity check, as well as print density.

This STP-131 Series also has a near-end sensor for the paper. This can give you a warning when the paper is almost out. If you find that there is not enough paper remaining on the roll when the paper low is triggered, the Error LED(Red) is turn on.

2. Connecting the cables

NOTE※

Before connecting any of the cables, make sure that both the printer and the host are turned off.

2-1 Connecting the Power Supply

※ CAUTION

When connecting or disconnecting the power supply from the printer, make sure that the power supply is not plugged into an electrical outlet. Otherwise you may damage the power supply or the printer.

If the power supply's rated voltage and your outlet's voltage do not match, contact your dealer for assistance. Do not plug in the power cord. Otherwise, you may damage the power supply or the printer.

• Make sure that the Printer's power switch is turned off, and the power supply's power cord is unplugged from the electrical outlet.
• Check the label on the power supply to make sure that the voltage required by the power supply matches that of your electrical outlet.
• Plug in the power supply's Adapter cable as shown below. Notice that the flat side of the plug faces down.

Line drawing of a portable electronic device with a cable inserted, showing internal structure and no text or symbols.

Diagram of a computer monitor rear panel showing ports and connectors (no text or labels)

Power Connector
Adapter Cable

NOTE※

To remove the DC cable connector grasp the connector at the arrow and pull it straight out. Make sure that the main unit's power cord is unplugged before you disconnect the DC cable connector

2-2 Connecting the Interface Cables

You need an appropriate interface cable.

Front view of a 2.5-pin D-sub connector with hexagonal connectors (no text or symbols)

Interface Connector (Serial or Parallel)

• Plug the cable connector securely into the printer's interface connector.
• Tighten the screws on both sides of the cable connector.

Diagram of a screwdriver with a rotating shaft, showing mechanical components without any text or symbols

- Attach the other end of the cable to the computer.

2-2-1 STP-131S Serial Interface

Pin No.	Signal name	Direction	Function
	FG.		-	FrameDataReceive
20	TxD	Output	Transmit
19	RxD		Input
21	CTS	Input Clear To	Send
22	SG		-	Signal Ground
18	RTS	Output	Request To Send

PRINTER
20	TXD(O)
19	RXD(I)
18	RTS(O)
21	CTS(I)
22~25	FG,SG (GND)

CONNECT

2-3 Connecting the Drawer

Front view of a 2.5-pin D-sub connector (no text or symbols)

Drawer Kick-out Connector

※ WARNING

Use a drawer that matches the printer specification. Using an improper drawer may damage the drawer as well as the printer.

※ CAUTION

Do not connect a telephone line to the drawer kick-out connector; otherwise the printer and the telephone line may be damaged.
Plug the drawer cable into the drawer kick-out connector on the back of the printer next to the power supply connector.

Pin No.	Signal name	Direction
1	Frame	ground
2	Drawer kick-out drive signal 1	Output
3	Drawer open/close signal	Input
4	+24V
5	Drawer kick-out drive signal 2	Output
6	Signal	ground

3. Setting the Dip Switches

No.	Dip Switch 1
	Level BPS	S/W1 S/W2	S/w3
	1	2400	ON	OFF	OFF
	2	4800	OFF	ON	OFF
	3	9600	OFF	OFF	ON
	4	19200	ON	OFF	ON
3	5	38400	ON	ON	OFF
	6	57600	OFF	ON	ON
	7	115200	ON	ON	ON
Function		ON		OFF
4	Density	Dark		Normal
5	Handshaking	Xon/Xoff		DTR/DSR
6	Auto Feeding	With cutting		Without cutting
7	-
8	Not used. Fixed to On

No.	Dip Switch 2
	Function	ON		OFF
1	Auto cut	Full Cut		Partial Cut
Parity		None Parity	Even Parity	Odd Parity
2		OFF	ON	ON
3		OFF	OFF	ON
4	Not used. Fixed to OFF
5	Not used. Fixed to OFF
6	Not used. Fixed to OFF
7	Not used. Fixed to OFF
8	Not used. Fixed to OFF

4. Roll Paper Installation

NOTE※

Be sure to use paper rolls that specifications. Do not use paper rolls that have the paper glued to the core because the printer cannot detect the paper end correctly.

4-1 Make sure that the printer is not receiving data; otherwise, data may be lost.

4-2 Open the paper roll cover by pull up the cover. You must turn on the printer before replace the paper roll.

Line drawing of a portable printer with a scroll wheel and control buttons (no text or symbols)

NOTE※

Do not open the print cover while the printer is operating. This may damage the printer.

4-3 Remove the used paper roll core if there is one.

4-4 Insert the paper roll.

Line drawing of a mechanical device with open lid and internal compartments (no text or symbols)

4-5 Be sure to note the correct direction that the paper comes off the roll.

O

×

4-6 Close the cover.

Line drawing of a printer with a magnified inset showing the paper roll and internal components (no text or symbols)

Line drawing of a printer with two buttons and a close-up of the button (no text or symbols)

NOTE※

When closing the cover, press the center of printer cover firmly to prevent Paper miss-loading.

4-7 Tear off the paper as shown.

Line drawing of a printer with paper feed and paper roll, showing no text or symbols

5. Self Test

The self-test checks whether the printer has any problems. If the printer does not function properly, contact your dealer. The self-test checks the following;

5-1 Make sure paper roll has been installed properly.
5-2 Turn on the power while holding down the FEED button. The self-test begins.
5-3 The self-test prints the current printer status, which provides the control ROM Version and the DIP switch setting.
5-4 After printing the current printer status, self-test printing will print the following, and pause.

SELF-TEST PRINTING. PLEASE PRESS THE FEED BUTTON.

5-5 Press the FEED button to continue printing. The printer prints a pattern using the built-in character set.

5-6 The self-test automatically ends and cuts the paper after printing the following.

\*\*\* COMPLETED \*\*\*

5-7 The printer is ready to receive data as soon as it completes the self-test.

6. Hexadecimal Dumping

This feature allows experienced users to see exactly what data is coming to the printer. This can be useful in finding software problems. When you turn on the hexadecimal dump function, the printer prints all commands and data in hexadecimal format along with a guide section to help you find specific commands.

To use the hexadecimal dump function, follow these steps:

6-1 Set DIP Switch 2 (sw-7 = Hex dump mode) of your printer ON position.

6-2 Turn on the power of your printer.

6-3 Run any software program that sends data to the printer. The printer will print all the codes it receives in a two-column format. The first column contains the hexadecimal codes and the second column gives the ASCII characters that corresponds to the codes.

1B 21 00 1B 26 02 40 40 40	40	. ! . . & . @ @ @ @
02 0D 1B 44 0A 14 1E 28 28	28	. . . D . . . . ( ( (
00 01 0A 41 0D 42 0A 43 43	43	. . . A . B . C C C

• A period (.) is printed for each code that has no ASCII equivalent.
• During the hex dump, all commands except DEL EOT is disabled.

6-4 Close the cover, then the printer enters the hexadecimal dump mode.

6-5 Set DIP Switch 2 (sw-7 = Hex dump mode) of your printer off position and then hexadecimal mode is off.

1. Specification

Printing method Thermal line printing
Dot density 180 X 180 dpi (7dots/mm)
Printing width 72 mm
Paper width 80 mm
Characters per line (default)	42 (Font A) (12 x 24)56 (Font B) (9 x 24)
Printing speed	23 lines/sec75 mm/sec
Receive Buffer Size 15K Bytes
※ NOTEPrinting speed may be slower, depending on the data transmission speed and the combination of control commands.
Supply voltage	SMPS Input voltage 100~240 VAC
	Frequency	50/60 Hz
	SMPS Output voltage 24 VDC
Environmental conditions	Temperature	5 ~ 40°C (Operating)-10 ~ 50°C (Storage)
	Humidity	30~80%RH (Operating)10 ~ 90 % RH (Storage); Except for paper
LIFE*	MechanismHead	30,000,000 lines100 Km
	Auto Cutter 1,000,000 Cuts
Paper	Paper thickness: 0.062 ~ 0.075mm
	Roll size::∅83 mm
	Roll spool diameter- Inside: ∅12mm (0.47")- Outside: ∅18mm (0.71")