EC-3150D-USB - Label printer EC Line - Free user manual and instructions

Product Type	Desktop Label Printer
Model	EC-3150D-USB
Brand	EC Line
Dimensions (W x D x H)	200 x 150 x 100 mm
Weight	1.0 kg
Power Supply	USB bus power (5V 1A) or optional AC adapter
Print Technology	Direct Thermal
Print Resolution	203 dpi (8 dots/mm)
Max Print Speed	30 mm/s
Max Label Width	58 mm
Max Label Length	150 mm
Supported Label Types	Continuous roll, die-cut, fanfold
Connectivity	USB Type B
Compatible Operating Systems	Windows, macOS, Linux (with drivers)
Barcode Symbologies	Code 39, Code 128, EAN-13, UPC-A, QR Code, Data Matrix, PDF417
Font Support	TrueType fonts via software
Software Included	Label design software (e.g., BarTender Lite)
Maintenance	Clean print head with isopropyl alcohol and lint-free swab; clean platen roller
Safety Instructions	Do not immerse in water; unplug before cleaning; only use recommended labels
Spare Parts Available	Print head, platen roller, cutter blade
Repairability	Modular design; parts replaceable by user

Frequently Asked Questions - EC-3150D-USB EC Line

What label sizes does the EC-3150D-USB support?

The printer supports label widths from 25 mm to 58 mm and lengths from 25 mm to 150 mm.

How do I connect the printer to my computer?

Use the supplied USB cable to connect the printer to a USB port on your computer. Install the driver from the included CD or download it from the EC Line website.

Does the printer require ribbon?

No, the EC-3150D-USB uses direct thermal printing technology, so only heat-sensitive labels are needed. No ink or toner is required.

What software can I use to design labels?

The printer works with popular label design software such as BarTender, NiceLabel, and Adobe Illustrator. A free version of BarTender Lite is included with the printer.

Can I print barcodes with this printer?

Yes, it supports many barcode symbologies including Code 39, Code 128, EAN-13, UPC-A, QR Code, Data Matrix, and PDF417.

How fast is the print speed?

The maximum print speed is 30 mm/s (about 1.2 inches per second) at 203 dpi resolution.

How do I clean the print head?

Turn off the printer and open the cover. Use a lint-free swab lightly moistened with isopropyl alcohol to gently wipe the print head. Allow it to dry completely before closing the cover.

What power source does the printer use?

The printer can be powered via the USB connection (bus power) or using an optional AC adapter (5V, 1A). The AC adapter may be required for sustained high-speed printing.

Can I use the printer with a Mac?

Yes, drivers are available for macOS. Download the appropriate driver from the EC Line support page.

What should I do if the printer stops feeding labels?

First, check that the label roll is loaded correctly and the paper guide is aligned. If the problem persists, clean the platen roller and ensure the label sensor is unobstructed. Refer to the manual for sensor calibration.

USER MANUAL EC-3150D-USB EC Line

Line drawing of a portable electronic device with ventilation slots and control buttons (no text or symbols)

Proficient in Commercial POS Receipt Printers

1. Introduction....2

1.1 Safety Warning ....2
1.2 Note 2

2. General Information ....3

2.1 Introduction ....3
2.2 Main Features ....3

3. Printer Parts ....3

4. Paper Roll Installation ....5

5. Specification 8

5.1 Specification Table 9

6. Setting Up the Printer 10

6.1 Unpacking 10
6.2 Power Cable Connection ....10
6.3 Data Cable Connection 10
6.4 Media Installation 10

7. Power On Utilities ....10

7.1 Self-Test 10
7.2 Gap Sensor Calibration .....11
7.3 Hexadecimal Dumping 12
7.4 Skip AUTO.BAS 12
7.5 Printer Initialization 13

8. Indicators and Buttons....13

8.1 Indicators 13
8.2 Buttons 13

9. Maintenance ....14

9.1 Printer Cleaning 14

1、Introduction

Thanks for choosing our new thermal label printer EC-3150. This product provides reliable performance and high printing quality at economic price. With powerful functions and easy operation design, EC-3150 is your best choice of thermal label printer.

CAUTION, NOTE

CAUTION: MUST COMPLY, OTHERWISE HUMAN GET HARM AND DEVICES MAGE.

NOTE: IMPORTANT INFOMATION AND TIPS FOR PRINTERS OPERATION.

SAFETY WARNING

PLEASE READ THE BELOW WARNINGS AND NOTES CAREFULLY BEFORE USING THE PRINTER.

1.1 SAFETY WARNING

CAUTION: THE PRINT HEAD IS A HEATED PART, PLEASE DO NOT TOUCH THE NT HEAD AND OTHER PARTS AROUND IT IN AND AFTER THE PRINTING PROCESS.

CAUTION: DO NOT TOUCH THE PRINT HEAD AND PLUG-IN PARTS TO AVOID NT HEAD DAMAGE.

CAUTION: DO NOT TOUCH THE PAPER TEAR-OFF KNIFE TO AVAOD GETTING RM.

1.2. Safety Notice:

* Don't touch the printer head with anything.

* Don't touch the cutter blade.

* Don't bend the power cord excessively or place any heavy objects onto it.

* Don't use the printer when it is out of order. This can cause a fire or and electrocution.

* When connecting or disconnecting the plug, always hold the plug but not the cord.

* Keep the desiccant out of children's reach.

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

* Install the printer on the stable surface. Choose firm, level surface where avoid vibration.

* Don't let water or other foreign objects into the printer.

* Don't connect a telephone line into the peripheral drive connector.

* We recommend that you unplug the printer from the power outlet if no use it for a long period.

2、General Information

2.1 Introduction

EC-3150 is designed for real-time and batch label printing, which is applicable in the field of transportation, logistics, post, retail sale, and etc. The printer can be connected with other equipment with various interface cards, such as Parallel, Serial, USB and LAN. It supports different paper media, including thermal paper roll, thermal label paper and sticker paper.

The printer provides direct thermal printing at selectable printing speed of 2.0, 3.0, 4.0, 5.0 and 6.0 inches per second. It accepts roll feed, die-cut and fan-fold labels. All common barcode format and QRCODE are available. Font and bar codes can be printed in 4 directions and in 1 to 10 times enlargement size. High performance and efficiency of label printing save your time!

2.2 Main Features

● Support thermal paper roll, thermal label paper and sticker paper.
● High speed printing, From2\~6inch/s
● Auto paper adjusting function.
● Auto temperature control for durable printing.
● Module design for different application.

3、Printer Parts

(1)

1- Top Cover 2- Base housing 3- Top Cover Open Button
4- Backing Paper Opening 5- Label Opening 6- Feed Button
7- Pause Button 8- Error Indicator 9- ONLINE/POWER Indicator

(2)

10- Power Switch

11- Power Jack

12- Cashdrawer Jack

13- Parallel Interface

14- USB Interface

15- Serial Interface

(3)

(4)

16- Print Head 17- Paper Roll 18- Label Guide 19- Paper Presence Sensor

20- Peel-off Roller Lever 21- Light Transmission Sensor Light Source

22- Paper Roll Spindle 23- Light Transmission Sensor Receiver

24- Peel-off Spindle 25- Peel-off Roller 26- Text sensor

4. Paper Roll Installation

(1) Insert the paper roll spindle into a paper roll, and place the paper roll into the printer. Fixing tab on the paper roll spindle should be inside the internal paper roll mount. Adjust the paper roll spindle position with the paper roll mount.

② Insert the paper roll spindle into the paper roll, and adjust the spindle position to make it in the center of the paper roll.

③ Place the paper roll into the internal paper roll mount. Please make sure the paper printing side face up as shown in the below photo.

Illustration of a rolled document with a black 'X' symbol above it, no text or symbols present.

(8)

Technical line drawing of a mechanical device with an open lid and internal compartments, showing no text or symbols.

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(2) Loading label for peel-off mode

① Thread the label through the label guides and move the label guides to adjust the fitness paper width.

Technical line drawing of a car interior showing dashboard, steering wheel, and door (no text or symbols)

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② Pull down the peel-off roller lever to unlock the peel-off roller.

Lever stands, the peel-off roller is locked.
Lever down, the peel-off roller is unlocked.

③ Split the label paper and backing paper manually and keep the label paper in the label opening. Thread the backing paper in front of the peel-off spindle and into the peel-off part.

Technical line drawing of a car interior showing structural components and airflow direction (no text or symbols)

(13)

④ Pull up the peel-off lever and the peel-off roller presses on the backing paper. Close the top cover.

graph TD
    A["Internal Component 14"] --> B["Assembly Part 15"]
    style A fill:#f9f,stroke:#333
    style B fill:#bbf,stroke:#333

Lever down, the peel-off roller is unlocked.
Lever stands, the peel-off roller is locked, and the backing paper is in the peel-off part.

Note:

If the peel-off function fails, please check:

1. The printing media is installed correctly.
2. The backing paper must be in front of the peel-off spindle.
3. The peel-off roller needs to press on the backing paper.
4. The peel-off roller lever must be stand.

Please refer the pictures below:

16)

17)

18)

3) Loading label for normal print mode If do not need sticker peel off automatically, load paper roll as below:

Technical line drawing of a mechanical device with internal compartments and mounting brackets (no text or symbols)

5. Specification

5.1 Specification Table

Parameter
Print	Printing method	Direct Thermal
	Resolution	203DPI
	Print width	16-82mm
	Print speed	2~6inch,Default 5 inch/s
	Memory	DRAM: 2M FLASH: 2M
	Print head temperature sensor	Thermal Sensitive Resistance
	Print head position sensor	Microswitch
	Paper detection sensor	Photoelectricity sensor
	Interface	Serial+USB+Ethernet
Bar code Font Graphics	Bar code	CODE128, EAN128, ITF, CODE39, CODE93, EAN13, EAN13+2, EAN13+5, EAN8, EAN8+2, EAN8+5, CODABAR, POSTNET, UPC-A, UPCA+2, UPCA+5, UPC-E, UPCE+2, UPC-E+5, CPOST, MSI, MSIC, PLESSEY, ITF14, EAN14 QRCODE
	Internal font	FONT 0 to FONT 8 Simplified Chinese, Traditional Chinese and Korean
	Enlargement & rotation	1 to 10 times enlargement in both directions 0°, 90°, 270°, 360° rotation
	Graphics	Mono PCX and BMP files can be downloaded into FLASH and DRAM
Media	Media type	Continuous, sticker, fan-fold, etc
	Media width	16mm - 82mm
	Media diameter	Max. 85mm
	Paper off mode	Tear off and Peel off
Power	Input	24V DC/2A
Environment condition	Work	5 - 45°C, 20 - 80%RH
	Storage	-40 - 55°C, ≤93%RH (40°C)
Physical dimension	Diameter	230(D) x 156(W) x 147(H)mm
	Weight	1.62kg

The printer supports both continuous and non-continuous paper.

● Continuous type: Paper roll
● Non-continuous type: 1) Label roll; 2) Sticker paper.

6. Setting Up the Printer

6.1 Unpacking

Please unpack the printer package, and inspect the parts according to the packing list. If any parts are missing or damaged, please contact the customer service of your purchased reseller or distributor.

6.2 Power Cable Connection

(19)

1) Make sure the printer power switch is OFF;

2) The printer power jack is a 3-pin socket and for 24V DC power input. Please plug the DC cord connector into the printer's power jack properly.

CAUTION:

■ When connecting or disconnecting the plug, always hold the plug but not the cord.

■ Avoid pulling the power cord, otherwise any damages may cause a fire or electrocution.

■ Avoid placing the power cord around other over heated equipment to prevent power cord melting, which may cause a fire or electrocution.

■ We recommend that you unplug the printer from the power outlet if no use it for a long period

6.3 Data Cable Connection

1) Make sure the printer power switch is OFF.
2) Plug the data cable connector into the printer's interface properly.
3) Plug the other end of the data cable with the host computer.

CAUTION:

■ Please do not plug the data cable when the printer power is ON.

6.4 Media Installation

To install the sticker paper and label roll, please refer"4. Paper Roll Installation".

7、Power On Utilities

There are five power-on utilities to set up and test printer hardware. These utilities are activated by pressing FEED button and PAUSE button.

7.1、Self-Test

To start the printer self-test, please follow the below steps,

1. Turn off the printer power.
2. Make sure the paper roll is installed correctly and the printer top cover is closed.
3. Press the FEED button and turning on the printer power simultaneously. When the self-test paper (chart 21) comes out, release the FEED button.

Self-test Page Sample:

SELFTEST....Self-test Mode

Abstract pattern of vertical striped lines with no text or symbols

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VERSION: V1.0....Firmware version

INTERFACE: PARALLEL......Interface type

SPEED: 5....Print speed

DENSITY: 7....Print darkness

SIZE: 76 mm, 60 mm....Paper width

GAP: 0 mm, 0 mm Gap distance

CODE PAGE: 437 Code page

MILAGE (m) : 44.7999999....Printed mileage (meter)

REFERENCE: 0 mm, 0 mm......Reference offset

DIRECTION: 0, 0.....Print direction

SHIFT: 0 ....Label print offset

OFFSET: 0 Paper tear-off offset Printer functions

SET PEEL: OFF.....Peel-off mode

SET TEAR: ON....Tear-off mode

SET HEAD: ON....Cover opening sensor

SET PRINTKEY: OFF....Press & print function

SET REPRINT: ON....Auto reprint function

SET KEY1 (FEED) : ON....Feed button function

SET KEY2 (PAUSE) : ON.....Pause button function

TAIWANESE BIG5: TST24.BF2....Traditional Chinese

CHINESE GB2312: TSS24.BF2.....Simplified Chinese

KOREAN KSC5601: K....Korean

button function

DRAM FILE: 0 FILE (S)

FLASH FILE: 0 FILE (S)

SECTOR SIZE: 4 KB

PHYSICAL DRAM: 2048 KBYTES

AVAILABLE DRAM: 1024 KBYTES FREE

PHYSICAL FLASH 2048 KBYTES

AVAILABLE FLASH 1024 KBYTES FREE

Numbers of download files

Physical & available

memory space

7.2 Gap Sensor Calibration

Gap sensor sensitivity should be calibrated at the following conditions

1. A brand new printer
2. Label stock changed
3. Printer initialization

This function is to reset the label gap sensor sensitivity when the printer power is turned on. User needs to start the calibration of the gap sensor sensitivity after loading a different type of label roll or the printer is initialized.

Please follow the steps below to calibrate the gap sensor:

1. Turn off the printer power.

2. Make sure the label roll is installed correctly and the printer top cover is closed.

3. Press and hold on the PAUSE button, then turn on the printer power. The printer will automatically calibrate the gap sensor sensitivity and save the gap length into DRAM. After then release the PAUSE button.

7.3 Dump mode

Please follow the steps below:

1. Turn off the printer power.
2. Make sure the label roll is installed correctly and the printer top cover is closed.
3. Press and hold on the PAUSE button and FEED button, then turn on the printer power. When the POWER indicator (blue light) and ERROR indicator (red light) light simultaneously, release both buttons. The printer is changed to Dump Mode and print as below chart.

Note: Printer will not print if data is not more than one piece of label, and need to press FEED button to force the printer to print it out.

7.4 Skip AUTO.BAS

User can download an auto execution file (AUTO.BAS) to flash memory. Printer will run the AUTO.BAS program immediately when turning on printer power. The AUTO.BAS program can be interrupted by the power-on utility.

Please follow the steps below to skip the AUTO.BAS:

1. Turn off the printer power.
2. Press and hold on the PAUSE button and FEED button, then turn on the printer power. When the POWER indicator (blue light) dims and ERROR indicator (red light) lights, release both buttons. The printer skips running the AUTO.BAS program. And then the POWER indicator lights.

7.5 Printer Initialization

Printer initialization is used to clear DRAM and restore printer settings to defaults. Please do the gap sensor sensitivity calibration after the printer initialization.

Please follow the steps below to initialize the printer:

1. Turn off the printer power.

2. Press and hold on the PAUSE button and FEED button, then turn on the printer power. When the POWER indicator (blue light) lights and ERROR indicator (red light) dims, release both buttons. The printer DRAM is cleared and printer settings are restored to defaults.

8. Indicators and Buttons

The printer has two indicators (POWER indicator in blue light and ERROR indicator in red light) and two buttons (PAUSE and FEED).

8.1 Indicators:

Item	Indicators Status	Descriptions
1	POWER indicator is ONERROR indicator is OFF	Printer is powered on and in normal print mode.
2	POWER indicator flashes slowly (640ms)ERROR indicator is OFF	Printer is paused.
3	POWER indicator flashes fast (160ms)ERROR indicator is OFF	Printed label is peel-off but not taken off.
4	POWER indicator is OFFERROR indicator flashes fast (160ms)	Printer cover is opened.
5	POWER indicator is OFFERROR indicator flashes slowly (640ms)	Paper shortage or gap sensor calibrated error.
6	POWER indicator flashes fast (160ms)ERROR indicator flashes fast (160ms)	Printer overheated protection is activated. After 1 minute, the printer will check again the temperature of print head. If the temperature gets right, printer resumes working.

8.2 Buttons

Item	Functions	Descriptions
1	Feed	Press the FEED button when POWER indicator is on and ERROR indicator is off. It feeds the label to the beginning of the next label
2	Pause	Press the feed button during printing and the printing job is suspended.
3	Self-test	Turn off the printer power.Make sure the paper roll is installed correctly and the printer top cover is closed.Press the FEED button and turning on the printer power simultaneously. When the self-test paper comes out, release the FEED button.
4	Gap sensor calibration	1. Turn off the printer power.2. Make sure the label roll is installed correctly and the printer top cover is closed.3. Press and hold on the PAUSE button, then turn on the printer power. The printer will automatically calibrate the gap sensor sensitivity and save the gap length into DRAM. After then release the PAUSE button.
5	Dump mode	1. Turn off the printer power.2. Make sure the label roll is installed correctly and the printer top cover is closed.3. Press and hold on the PAUSE button and FEED button, then turn on the printer power. When the POWER indicator (blue light) and ERROR indicator (red light) light simultaneously, release both buttons. The printer is changed to Dump Mode.

9. Maintenance

9.1 Printer Cleaning

To ensure the printing quality, please proceed this maintenance section to keep your printer in good conditions and extend its life.

Please use one of following material to clean the printer:

Cotton swab

Lint-free cloth

Vacuum / Blower brush

100% ethanol

The cleaning process is described as following

Printer Part	Method
Print Head	1. Turn off the printer power before cleaning the print head.2. Allow the print head to cool for at least one minute.3. Use a cotton swab and 100% ethanol to clean the print head surface.
Platen Roller	1. Turn off the printer power.2. Rotate the platen roller and use a cotton swab or lint-free cloth to wipe it thoroughly with 100% ethanol.
Exterior	Wipe it with water-dampened cloth.
Interior	Use a vacuum or blower brush to clean the dust.

Note:

■ Always turn off the printer power before cleaning the printer.
■ Do not touch print head by hand. Tweezers is not allowed to use for cleaning, otherwise the print head, platen roller or sensor may be damaged.
■ Please use 100% ethanol. DO NOT use medical alcohol, gasoline or acetone, which may damage the print head and platen roller.
■ Do the sensor calibration after cleaning the sensors.
■ Only turn on the printer and resume printing job after the ethanol volatilized.