LN 449 User Manual
This document provides comprehensive instructions for the LN 449 printer.
Important Safety Instructions
Before using the printer, please read carefully the following safety considerations in case of bodily injury or equipment damage.
1. Safety Warning
⚠ The print head will become very hot during printing; please do not touch the printhead and peripheral parts during printing and immediately after printing.
⚠ Please do not touch the printhead and connectors, in case that static damages the printer head.
2. Instructions
⚠ Warnings: Violating following instructions may cause serious injury or death.
- Do not plug several products in one porous power outlet. This may cause over-heat and a fire.
- If the plug is wet or dirty, dry or wipe it before using.
- If the plug does not fit perfectly to the outlet, do not plug in.
- Be sure to use only standardized porous power outlet.
- You must use the supplied adapter. It is dangerous to use other adapters.
- Do not pull the cable by pulling. This may damage the cable or cause a fire.
- Do not plug in or unplug with your wet hands. You may be electrocuted.
- Do not bend the cable by force or leave it under any heavy object. A damaged cable may cause a fire.
⚠ Note: Violating following instructions may cause slight damage of 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.
- Install the printer on a stable surface. If the printer falls, it may be broken and you may hurt yourself.
- Use the approved accessories only and do not try to disassemble, repair or remodel it by yourself. Call your dealer when you need these services. Do not touch the blade of auto cutter.
- Do not let water or other foreign objects drop into the printer. If this happened, switch off and unplug the printer before calling your dealer.
- 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.
- Other considerations:
- Place the printer on a solid and even base so that it cannot fall.
- Leave enough space around printer for operation and maintenance.
- Keep all liquids away from the printer.
- Do not expose the printer to high temperatures, direct sunlight or dust.
- Ensure the printer is connected to a socket with the correct mains voltage.
- Switch off the printer POWER supply when it's not in use for a long time.
- To ensure the printing quality and reliability, suggest use the same quality or recommend paper supplier.
- Please switch off the POWER supply when connect/disconnect all the ports or it will cause damage to the printer control circuit.
- Never carry out maintenance or repair work yourself. Always contact a qualified service Technician.
- Keep this User Manual in a place which is always easily accessible.
Other Precautions
The copyright for this user manual and various other manuals is property of our company. Any copying or conversion into electronic form and saving of this material without the express written permission is strictly prohibited. Use of the information contained in this manual is not subject to any patent liability. This manual has been prepared with utmost care and attention to detail but may contain certain errors and/or omissions. Our company is not legally liable for any damages resulting from the use of the information in this manual. Our company and its affiliates are not legally liable (United States excluded) for any damages, loss, costs, and/or expenses that result from the breakdown, malfunction, and/or misuse of the product due to violation or neglect of the operation and maintenance information and instructions provided by our company, as well as from the unauthorized alteration, repair, and/or modification of the product by the user and/or third party. We are not legally liable for any damages and/or issues resulting from the use of options and/or parts that are not authentic or authorized products.
4. WEEE (Waste Electrical and Electric Equipment)
🗑 This mark shown on the product or its literature indicates that the corresponding item should not be discarded at the end of its working life with other household waste. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate marked items from other types of waste and recycle them responsibly to promote the sustained 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 conduct environmentally safe recycling of such items. Commercial users should contact their suppliers and check the terms and conditions of purchase contracts. This product should not be combined with other commercial waste for disposal.
⚠ Caution: This is a Class A product. In a domestic environment this product may cause radio interference in which the user may be required to take adequate measures.
Chapter 1 Introduction
1.1 Packing List
Unpack the printer and keep the packing materials in case you need to ship the printer in the future. Any damages exist, please contact the local dealer.
Standard:
The package typically includes: Printer, Power Cable, USB Cable, USB Flash Drive, User Guide, 4x6 Shipping Label, and a USB C Adaptor (only for Mac).
Note: The packing materials are based on the order.
1.2 Appearance and Components
Front View
Components include: Top Cover, (Status Indicator), Feed Button, Cover Open Levers.
Rear View
Components include: Power Switch, External Paper Roll Inlet, Power Receptacle, USB Port.
Inside View
Components include: Print Head Module, Kick-stand Cover Lock, Movable Paper Sensor, Platen, Moveable Label Guides.
Note: The views are for reference; ports may vary by choice.
1.3 Specifications
| Items | Parameter |
|---|---|
| Printing | Printing method: Direct thermal |
| Resolution: 203dpi(8dots/mm) | |
| Printing speed: 50-150mm/s | |
| Printing width: 50-108mm | |
| Printing length: 25mm - 300mm | |
| Processor | 32 bits RISC CPU |
| Memory | RAM: 2MB, Flash: 2MB |
| Detection | Sensors: Paper out detection, seam label detection, black mark detection, open detection |
| Media | Types: Roll-fed or Fan-fed, Die-cut or Continuous label |
| Width: 2"(50 mm) – 4.65"(118 mm) | |
| Thickness: 0.003"(80 μm) – 0.0087"(220 μm) | |
| Label roll diameter: 5''(127mm) Max | |
| External Folding Paper: W:100mmx L:100mm-300mm | |
| Programming Language | TSPL |
| Software | Driver: Windows 2000, Vista, 7,8,10 |
| Resident Fonts: GBK 16x16 24x24dots, ASCII 8×16, 12×24dots |
| Items | Parameter |
|---|---|
| Barcode | 1D: Code 39, Code 93, EAN 8/13 (add on 2 & 5), UPC A/E (add on 2 & 5), I 2 of 5, Codabar, Code 128 (subset A, B, C) |
| 2D: QR Code | |
| Communication Interfaces | USB, Bluetooth |
| HMI | FEED button with three color lights, Tear paper upwards, Movable paper guides, Back feed and positioning automatically, Movable sensor for black label |
| Power | IP: AC230V+/-30V, 1.5A |
| Environment | Operation: 41°F (5°C)-104°F (40°C), 30%-85%, non-condensing |
| Storage: -4°F (-20°C)-122°F (50℃), 10%-90%, non-condensing | |
| Physical Characteristics | Dimension: 112(L) x 102(W) x 217(H)mm |
| Weight: 1.5Kg | |
| Options & Accessories | External label roll holder, Folding carton |
| Agency Approvals | CCC |
Chapter 2 Installation & Usage
2.1 Printer Connection
2.1.1 Power Connection
Follow these steps to connect the power:
- Make sure the printer's power switch is in the [power-off] position.
- Connect the power cord to the printer.
- Connect the other end of the power cord to the outlet.
Diagram description: A power switch is shown with OFF and ON positions. A printer is depicted with a power receptacle. A power cord connects the printer to an electrical outlet.
NOTE:
- Use the original power adapter only, in case of damage caused by improper charging.
- Please unplug the printer power cord if it is not in use for a long time.
2.1.2 USB Connection
Connect the USB cable to the printer and PC.
Diagram description: A USB cable is shown connecting the printer's USB port to a PC's USB port.
2.2 Fanfold Label Loading
Folding Paper Loading
- Turn the power on, adjust the paper guide to fit the width of paper.
- Insert the paper into the entry slot.
- The paper will be sucked into the paper guide automatically.
Diagram description: Shows steps for loading folded paper, including adjusting guides, inserting paper, and automatic feeding.
Roll Type Label Loading
Load the label roll onto the holder and align it with the printer.
Diagram description: Shows a label roll mounted on a holder connected to the printer.
NOTE:
- When the printer is powered on, the paper will be sucked into the paper guide automatically.
- The roll type label holder needs to be aligned with the hooks at the bottom of the printer.
2.3 Operation Panel
Feed Button
Turn on: In the shutdown state, turn on the power switch behind the printer; the indicator will light on.
Turn off: When the power switch is turned off, the printer shuts down and the indicator light is off. In the power-on state, turn off the power switch behind the printer; the indicator will light off.
Feed Button Functionality:
- Press the feed button: The printer sends the paper out to the specified position depending on the type of paper used. When using continuous paper, long press the feed button to send a fixed length of paper. If using label paper, press the feed button once to send out a whole label.
- When the printer is printing, press the feed button to pause the current printing (the light is green). Press the button again to resume the unfinished print task.
Chapter 3 Maintenance & Adjustment
Adhesives and coatings of the media can transfer to the printer parts over time along the media path, including the thermal print head and media sensor. This build-up can accumulate dust and debris. Failure to clean the print head, media path, and media sensor could result in inadvertent loss of labels, label jams, and possible damage to the printer.
Note:
- Make sure to turn off the printer before cleaning.
- As the print head gets hot during printing, if you want to clean the print head, turn the printer off and wait approximately 2~3 minutes before commencement.
- When cleaning the print head, do not touch the heated portion of the print head. The Print Head is susceptible to damage from static electricity, etc. So, it is strongly recommended to wear hand gloves during cleaning progress.
- Do not allow the print head to become scratched and/or damaged in any way.
3.1 Cleaning Print Head
- Open the printer cover and then use the cleaning pen to clean the head in the direction from the center of the head to two sides.
- After cleaning the head, do not use the printer until the alcohol used for cleaning evaporates completely (1~2 min) and the printer has completely dried.
3.2 Cleaning Roller and Paper Path
- Open the printer cover and then remove the paper.
- Remove any dust or foreign substance using a dry cloth or cotton swab.
- Soak the cloth or cotton swab in alcohol for medical use and use it to remove adhesive foreign substances or other pollution materials.
- After cleaning the parts, do not use the printer until the alcohol evaporates completely (1~2 min) and the printer has completely dried.








