✓ Royal Mail Authorised Inspector since 2008 | Trading since 2005
The Neopost IS-420 is a Mailmark-compliant, mid-volume franking machine that franks up to 65 letters per minute and is best suited to businesses sending up to around 300 mail items a day. Manufactured by Neopost (now Quadient), it pairs a semi-automatic feeder with an integrated weighing platform and up to 9 job memories to speed up everyday franking. Mailcoms supplies compatible ink and consumables for the IS-420.
The IS-420 franking machine, manufactured by Neopost Ltd, is one of the most recent franking machines to become Mailmark compliant. This machine supports the brand new service that was released by Royal Mail. This will therefore allow users to frank a new 2D barcode and benefit from a wide range of extras including lower franking prices and tracking of your mail items.
Neopost IS-420 Franking Machine

The Neopost IS-420 franking machine is a mid volume franking machine. This means that it is highly recommended for businesses to frank up to 300 mail items per day if you truly wish to benefit from franking. This is based on our experience with a similar machine. This machine has a top franking speed of 65 letters per minute and this is made possible via a semi-automatic feeder which comes as standard with this machine.
This mid volume franking machine comes with many features such as a integrated weighing platform. You can choose from several different platforms for this machine, including a 3, 5, 10 or 30 Kg scale. This will enable you to eliminate the chance of over or under paying for your mail items. For even easier franking, you can use as many as 9 job memories on this machine for your most commonly used jobs. These are available at the click of a button and are beneficial to use.
Other features that come with the Neopost IS-420 include up to 100 departmental accounts, various adverts, a fully automatic tape dispenser and much more. This is not the only franking machine on the market, and you can find similar machines to the IS-420 from Mailcoms. View our franking machines here.
View our range of Neopost IS-420 Franking Machine Supplies here.
Purchase Neopost IS-420 Franking Ink here.
IS-420 Specifications
View the specifications of the Neopost IS-420 Franking Machine below.
- Speed: 65 LPM
- Feeding System: Semi-Automatic Feeding
- Tape Dispenser: Automatic
- Weigh Platforms: 3, 5, 10 or 30 Kg scales
- Max. Envelope thickness: 12mm
- Min. Envelope Size: 89mm x 127mm
- Max. Envelope Size: 229mm x 324mm
- Job Memories: 9
- Connectivity: LAN or Analogue
- Adverts: 8 Standard, 2 Open
- Departmental Accounts: 25 as standard, 100 optional
- PIN Protection: Yes
- Smart Meter Enabled: Yes
- Mailmark Compatible: Yes
IS-420 Dimensions
View the dimensions of the Neopost IS-420 franking machine below.
- Length of machine: 748mm
- Height of machine: 298mm
- Depth of machine: 375mm
Frequently Asked Questions
What is the franking speed of the Neopost IS-420?
The Neopost IS-420 franks up to 65 letters per minute using its semi-automatic feeder.
Is the Neopost IS-420 Mailmark compatible?
Yes. The IS-420 supports Royal Mail’s Mailmark 2D barcode standard for lower franking prices and mail tracking.
How many mail items per day is the IS-420 suited to?
It is a mid-volume machine recommended for businesses franking up to around 300 mail items per day.
Where can I buy ink for the Neopost IS-420?
You can buy compatible IS-420 ink and supplies from Mailcoms on our Neopost IS-420 supplies page.

