IS-420 Digital Mailing System
Powerful Processing Delivered Fast and Friendly

Dynamic business environments count on powerful performers who can get the job done with accuracy and speed. The Neopost Intelligent Solution 420 Digital Mailing System delivers with fast and friendly operations that are easy to use and reliable.
With state-of-the-art technology and online services under your control, you’ll be sure to have the best-in-class solution to meet your requirements.
Practical to use, the highly capable IS-420 with whisper-quiet operation is fast and efficient. Plus, you’ll appreciate the sleek ergonomic design that saves you space and easily integrates into your business environment.
» Fast, Accurate Weighing and Rating
» Monitor, Track and Control the Online Generation
» Customizable Slogans and Printed Messages
» Weigh and Manage Your Mail with the Rate Wizard
» Easy Ink Management
» Take Control with Mail Accounting
» Secured Mail Delivery
» Smart and Friendly Operational Control
FAST, ACCURATE WEIGHING AND RATING
Using Differential Weighing, simply place all your mixed-weight mail on the weighing platform, remove an envelope and the correct rate is calculated.
With Smart Start technology, each time an envelope is removed from the weighing platform, the powerfeeder starts and is ready to process mail or automatically dispense a Secure Stick postage label.
MONITOR, TRACK AND CONTROL YOUR POSTAL EXPENSES ONLINE
Neopost Online Services give you greater control over your mailing system and postal expenditures. The Intelligent Solution 420 is connected to help you manage your operations more efficiently. Don’t run out of ink with Low Ink E-mail Alerts and simplify ink cartridge re-ordering.
You’ll enjoy hassle-free postal rate changes since they are automatically downloaded ensuring simplicity, accuracy, and compliance. If you have accountable mail, why not use eConfimation & eCertified services to track mail and receive status email alerts? With convenient online access, you can monitor and track postage, mail class, and department usage.
GIVE THE RIGHT IMPRESSION
Promote customer relations with printed messages that enhance the professional look of your organization. Select advertising slogans, or simply customize a text message to reinforce the communication to your customers.
Even your mail class die is set and embedded to automatically print the correct class so you can be sure to save time and costs.
WEIGHING YOUR COSTS HAS NEVER BEEN EASIER
Don’t be confused by postal rates. Let the IS-420 Rate Wizard give you a hand so you don’t have to be a postal expert. Whatever rate you need is in the Intelligent Solution 420 and, save even more time by eliminating keystrokes when you select the mail class you need from the Rate Shortcuts menu.
From single envelopes to larger packages, you’ll have the flexibility you need to weigh and manage your mail with ease.
DON'T RUN OUT OF INK
Managing ink couldn’t be easier. The IS-420 uses a long-life cartridge and prints a smaller indicia barcode, IBI Lite, optimizing ink yield and minimizing replenishment.
Plus, the Intelligent Solution 420 will send you a Low Ink E-mail Alert so you can be sure your mail keeps moving when needed. And thanks to the Click n’ Snap design, changing ink cartridges has never been easier.
MAIL ACCOUNTING SOLUTIONS THAT KEEP YOU IN CONTROL
Optimizing budget and effective costs control are expected in today’s business environment. The Neopost Mail Accounting Solution (MAS) delivers the detailed reports you need to track, analyze, allocate, forecast, and consolidate your mail processing activity by mail class, department, time-period and more, even from a distance.
You can even establish budget by department and then monitor costs with automatic alerts or limits controlling overspending. Connect to a PC with Neopost MAS installed and you’re never out of control.
SECURED MAIL DELIVERY
With the integrated envelope moistener, you can be sure to deliver tightly secured mail with a tip-to-tip seal.
And the IS-420 saves you even more time with its easy access reservoir that’s designed for efficient removal for easy fill, no spill and quick cleaning.
SMART AND FRIENDLY OPERATIONAL CONTROL
An intelligent operating panel that puts even the casual operator in control with a dashboard overview and simple-to-use navigational menu.
Eliminate errors and improve productivity with a host of smart functions and effortless menu prompts that deliver the fully loaded features of the IS-420.
Benefit by using the failsafe Rate Wizard and easy-to-use Shorcut Keys that save you time.
| STANDARD FEATURES | SPECIFICATIONS |
| Processing speed | 65 LPM (Letters Per Minute) |
| Security | Multi-level User Access Security System |
| Job Imprint Memories | 9 |
| Print Modes | Normal posting; Omit date; Omit Day; Date stamp; Advert |
| + Date stamp; Text only | |
| Imprint Customization | 8 standard, 2 open advertising slogans |
| 10 custom personalized text messages | |
| Automatically printed mail class | |
| Account Reporting and Control | 25 departments |
| Online Services | Automatic USPS rate downloads |
| Low-ink email alerts | |
| View mailing data online | |
| Track USPS eServices and eCertified | |
| Size | 30"L x 15"D x 12"H |
| Envelope Specs | Minimum: 3.5" x 5 " |
| Maximum: 10" x 13" | |
| Thickness: Up to 1/2 " | |
| Orientation: Portrait or landscape |
Related Products:
Neopost's wide range of quality, high-performance products can help to improve all aspects of your mailing and logistics operation.
| Folder Inserters: | |
![]() | The SI-30 is a compact folder inserter that is excellent for the office environment. |
| Letter Openers: | |
![]() | The 5001 letter opener opens up to 200 envelopes per minute, quickly and safely. |
| Data Management Systems: | |
![]() | Mail Accounting Software (MAS) allows you to have direct access to all of your mail accounting data, anytime and anywhere. |





