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What Printer Do I Need for USPS Labels? | Official Requirements 2025

Introduction: The Official Answer for USPS Shipping
If you’re using USPS Click-N-Ship or any online postage service, you need labels that meet their specifications to ensure smooth processing and avoid delays. So, what printer do you need for USPS labels? The official and most reliable answer is a 4×6 inch direct thermal label printer. This guide explains why this is the standard and what to look for.

 
 

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Why a Direct Thermal 4×6” Printer is the USPS Standard

USPS (and most other carriers) design their automated sorting systems around specific label formats:

  • Exact Size (4×6 inches): This is the standard dimension for all USPS domestic and international shipping labels, including Priority Mail, First-Class Package, and Ground Advantage.

  • Direct Thermal Technology: USPS requires labels printed with this technology for optimal scanning reliability. It produces a smudge-proof, high-contrast image without ink. The labels are also less expensive than inkjet/laser alternatives.

  • Scanability: A dedicated thermal printer produces perfectly aligned, crisp barcodes and clear address blocks that the USPS automated equipment can read at high speeds, preventing misrouting.

 
 

LW Series Label

September 5, 2024

100% Compatible DYMO Label Writer printer, Continuous Paper Label Roll,Cut-to-Length Label.

Product Features:

1.Same as the original,Anti Corrosion, Anti High / Low temperature, Anti Abrasion resistant, Anti Fade,Strong adhesive, Waterproof.

2.Factory Outlet,Reasonable & Competitive price.

3.Premium Quality Guaranteed: 100% Guaranteed, 1:1 replacement or refund for any defective goods.

4.Fast Delivery, 3~7 working days, 100% tested before shipment. 

Certification: FC、CE、Rohs、SGS、MSDS

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Tattoo Stencil Printer

M08E-WS Tattoo Printer

July 2, 2024

2024 Upgraded Tattoo Stencil Printer,The upgraded stencil printer for tattooing is a professional tattoo printer machine for tattoo artists, adds Tattoo Preview and Anti-wrinkle function, instantly see how the tattoo will look on you, printing stay away from wrinkles and paper jams.Compatible with Mobile Phone,Tablets Laptops & PC.

Product Features:

High Definition: Updated Printhead+Anti-Wrinkle Function

Powerful ePrinter App:Multiple Pattern Combination Printing/Mirror and Rotate functions/Image cutting/Colour to line drawing/Scale Interface/Tattoo Preview

Hightly Compatible–AIMO tattoo printer works with smartphones, pads, PC without needing purchase extra equipment;M08E-WS tattoo printer supports Android, iOS, Windows, MacOS.

Inkless Thermal Printer Tattoo: AIMO M08E-WS tattoo stencil printer bluetooth adopts advanced thermal technology to print clear and precise patterns and lines, no ink clogging or cleaning problems.

Certification:FCC、CCC、 CE、Rohs、IC

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P12 PRO Mini Label Printer

August 30, 2024

P12 Pro handheld rechargeable label maker is compatible with iPhone & Andriod phones. A great choice for home, office, school, nursing home, small business organization

Features:

  • Compact and Portable: weighing only 220g and measuring 82*82*61mm, you can print your labels anywhere, anytime.
  • Power & Capacity: Lithium battery, 1000mAh, 1.5 hours of battery life.
  • High Definition: 203dpi, dark color imaging, smooth printing effects and pictures.
  • Inkless Printing: Support thermal and thermal transfer printing technology, no need to replace the ink cartridge, easy to operate, and environmental protection.
  • High Compatibility: supports wireless printing on IOS and Android phones, tablets, and other mobile devices.
  • Tested Materials: Consumables are resistant to water, cold, high temperature, chemicals, and abrasion.
  • Applications: garden, kitchen, bathroom, office, etc.

 

Certificate: FCC、ROHS、 CE

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Xmas Gifts Decorations Round Sticker

Christmas Thermal Labels

November 27, 2025

AIMO Self-Adhesive Circle Labels, Xmas Gifts Decorations Round Sticker for M110/M108/M122/M120/M220/M200/M150/M421 Label Printer, Holiday Labels for DIY, Greeting Card. These thermal labels let you skip the hassle of handwritten tags—simply print batches of labels easily from your phone. They take the stress out of holiday prep, so you can focus on spreading joy and cheer all season long.

Product Features：

  • Thermal Paper Features: AIMO self-adhesive Multi-Purpose labels are water resistant, oil resistant, abrasion resistant, strong adhesion, and BPA free.
  • Unique Design: These holiday labels fit a variety of scenarios and uses—ideal for holiday, gift, name, and decoration labels, as well as labels for trees and greeting cards.
  • Clear Printing– Direct thermal print technology provides clear lettering without messy, expensive ink or toner
  • 𝐌𝐨𝐫𝐞 𝐜𝐨𝐬𝐭-𝐞𝐟𝐟𝐞𝐜𝐭𝐢𝐯𝐞-The price is competitive, and the printing effect and paper quality can meet your needs.

Certification: FCC、 CE、Rohs、IC

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Cutting Machine \likcut S501

S501 Vinyl Cutting Machine

July 29, 2025

Likcut S501 Vinyl Cutting machine can cut over 46 materials, from vinyl to cardstock, iron-on transfers and even matless smart material. The cuts are precise and clean for DIY crafting projects.

With a cutting speed of up to 3.3 inches per second and Bluetooth and USB-Type C connectivity, it gives you a variety of options for use.

Product Features:

· High-Speed Precision Cutting

· Versatile Connectivity Options

· Wide Range of Compatible Materials

· Integrated Software Support

· Multifunctional Creativity Station

· Bare metal weight not exceeding 2kg

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AM-243BT Shipping Label Printer

December 22, 2023

Bluetooth Thermal label printer small enough to free up your desktop space, easily held in one hand. With Bluetooth, you can print anytime and anywhere.The distance between home and office will be shortened, and the working place will no longer be limited. The right piece of equipment for offices, homes, stores and industry warehouses.

Product Features:

Bluetooth wireless printing via phone or laptop.

Print in sizes 1.0″-4.6″, compatible with multiple sizes printing labels.

Satisfy most major platforms needs and transport package needs.

Adjust the position automatically and precisely.

High speed printing at 150mm/s.

Certification: FC、CCC、 CE、Rohs、ICC

Read More »
 
 
 

Your Simple Checklist for a USPS-Ready Printer

  1. Must be a “Label Printer”: Not a standard paper printer. It’s designed to handle rolls of 4×6” thermal labels.

  2. Uses “Direct Thermal” Printing: Check the specs. You only need to buy label rolls, no ink or toner.

  3. Connectivity: Choose USB for a fixed setup or Bluetooth for portability. Ensure it works with your computer or phone.

Simplify USPS Shipping with AIMO
AIMO’s range of 4×6 label printers, from the portable M421 to the desktop D450BT, are perfect companions for any USPS shipper.

  • Guaranteed Compatibility: Our printers are engineered to the exact 4×6” standard. They produce flawless labels that are fully compliant with USPS technical specifications right out of the box.

  • Seamless Workflow Integration: Print directly from the USPS website, third-party platforms like Pirateship, or e-commerce sites. The labels print perfectly every time, with barcodes positioned for optimal scanning.

  • Cost-Effective & Professional: Eliminate the hassle of taping paper to boxes. Print peel-and-stick labels that look professional and ensure your packages are processed efficiently.

Conclusion: The Right Tool for the Job
For anyone regularly using USPS, the answer to “what printer do I need?” is clear: a dedicated 4×6 direct thermal label printer. It’s the single most effective upgrade for reliability, cost-saving, and professionalism in your shipping process.

Ship with USPS confidently and efficiently. Explore AIMO’s USPS-compatible thermal label printers.

 

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