Brother TJ-4420TN Manual

The Brother TJ-4420TN is a high-performance thermal label printer designed for industrial and commercial use, featuring fast print speeds, high-resolution printing, durable construction, and compatibility with various label sizes and materials. It supports direct thermal printing technology, network connectivity options, and advanced barcode generation. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Printing Operations 8. Maintenance Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Thermal print head, Media sensor, Control panel with LCD display, Network interface, USB port, Power supply unit, Label roll holder.

Feature	Description
Print Method	Direct thermal
Print Resolution	203 dpi (8 dots/mm)
Print Speed	Up to 8 inches per second
Media Width	1.2" to 4.3" (30.5 mm to 109.2 mm)
Media Type	Direct thermal labels and tags
Interface	USB 2.0, Ethernet 10/100BASE-TX, Serial (RS-232)
Memory	32 MB SDRAM, 16 MB Flash memory
LCD Display	2-line backlit display for status and settings
Power Requirements	100-240V AC, 50/60Hz
Operating Environment	41°F to 95°F (5°C to 35°C), 20-80% RH

Installation

Unpack and inspect contents. Place on stable, level surface.

Install media: Open media cover, load label roll onto holder, thread through guide, close cover.
Connect interface cable: Use USB, Ethernet, or serial cable to connect to host computer or network.
Connect power: Plug power cord into printer and AC outlet.
Install printer driver: Insert installation CD or download from Brother website.

WARNING! Ensure printer is placed on a stable surface to prevent tipping. Keep area clear of obstructions.

First-Time Setup

Power on printer; follow initialization prompts.

Calibrate media: Printer will automatically detect media type and calibrate.
Configure network settings: Use control panel or BRAdmin utility to set IP address.
Set print darkness: Adjust using control panel or driver settings for optimal print quality.
Test print: Print configuration label to verify operation.

CAUTION! Do not touch print head during operation; it becomes hot. Allow to cool before maintenance.

Specifications

Print Technology: Direct thermal.
Resolution: 203 dpi (8 dots/mm).
Maximum Print Width: 4.09" (104 mm).
Media Roll Diameter: Up to 5" (127 mm) outer diameter.
Processor: 32-bit RISC processor.
Supported Barcodes: Code 39, Code 128, UPC-A/E, EAN-8/13, PDF417, Data Matrix, QR Code.
Fonts: Internal scalable and bitmap fonts.
Power Consumption: Approx. 70W (printing), 15W (standby).
Dimensions (WxDxH): 7.9" x 13.4" x 9.8" (200 x 340 x 250 mm).
Weight: Approx. 11 lbs (5 kg).

Controls and Settings

Access settings via control panel buttons and LCD display. Front Panel: POWER, FEED, PAUSE, CANCEL buttons.

LCD Display: Shows status, error messages, and menu options. Navigate with arrow keys, select with ENTER.

Print Settings: Darkness (0-30), Print speed, Media type, Tear-off position. Network Settings: IP address, Subnet mask, Gateway, Protocol (TCP/IP, LPR, Port 9100). System Settings: Language (ENGLISH default), Calibration, Self-test, Reset to factory defaults.

Connecting Devices

USB: Connect directly to computer. Ethernet: Connect to network router/switch. Serial: Connect to legacy systems.

Turn off printer before connecting cables.
Match cable type to correct port (USB, Ethernet RJ-45, Serial DB-9).
Configure communication settings in printer driver or control panel.

Tip: Use shielded cables for longer runs to prevent interference.

Printing Operations

Supports label printing from various software applications.

Load media: Ensure correct label size and type loaded.
Send print job: From application software, select Brother TJ-4420TN driver.
Monitor status: Check LCD for print progress or errors.
Pause/Resume: Use PAUSE button to temporarily halt printing.
Feed label: Press FEED button to advance media manually.
Cancel job: Press CANCEL to stop current print job.
Print configuration: Print settings label for reference.
Batch printing: Configure for continuous or batch mode operation.

WARNING! Do not use labels not approved for thermal printing. Incompatible media may damage print head.

Maintenance Features

Print Head Cleaning: Perform regularly via maintenance menu. Media Calibration: Automatic on power-up or manual via menu. Firmware Updates: Download from Brother support website.

Care & Cleaning

Unplug before cleaning. Use lint-free cloth slightly dampened with water or isopropyl alcohol for print head and rollers.

CAUTION! Do not use abrasive cleaners or solvents. Allow printer to cool completely before cleaning.

Regulatory Information

FCC Part 15: Class A digital device; complies with limits for commercial use. CE Mark: Conforms to European directives. RoHS compliant: Contains no hazardous substances above permitted levels. Copyright © 2025 Brother Industries, Ltd. For support, visit support.brother.com or contact 1-877-276-8437.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cord/outlet	Check power cord connection; verify outlet is working.
No print output	Driver/media/connection	Verify printer driver installed; check media loading; ensure cable connected.
Poor print quality	Print head/darkness/media	Clean print head; adjust darkness setting; use approved media.
Media jam	Misaligned media	Open cover, remove jammed media, reload correctly.
Network not detected	IP settings/cable	Verify network cable; check IP configuration using BRAdmin.
Error message on LCD	Various faults	Refer to error code in manual; perform recommended action.

Reset: Control panel > Settings > System > Reset to factory defaults.

Service: 1-877-276-8437; support.brother.com