Can You Refill a Franking Machine Ink Cartridge? Refill and Reset Explained

If your mailroom gets through several franking ink cartridges a year, you have probably looked at the invoice and wondered whether that empty plastic shell really has to go in the bin. It does not. Most franking ink cartridges can be professionally refilled and electronically reset, then put straight back into the same machine.

Here is how the process works, which cartridges suit it, and when a refill is the smarter choice over buying new.

The short answer

Yes, you can refill a franking machine ink cartridge, but not with a syringe at your desk. A franking cartridge holds a small chip that counts down the ink your machine thinks is left, so simply topping up the reservoir does nothing: the machine still reads the cartridge as empty and refuses to print. A proper refill and reset service refills the cartridge with Royal Mail approved ink and resets or replaces the chip, so the machine sees a full cartridge again and prints as normal.

Why franking cartridges are different from printer cartridges

An office inkjet cartridge is a simple ink container. A franking cartridge has to satisfy Royal Mail as well as your printer head. The ink itself is a specific approved formulation with fluorescent properties so that automated sorting equipment can read the impression, and on Mailmark machines the 2D data matrix barcode has to scan cleanly first time. That is why the ink you put in matters far more than it does on a general office printer, and why home refill kits are a poor idea. If you are unsure how the barcode side of things works, our guide to Mailmark for UK franking machine users covers it.

The second difference is the chip. Manufacturers lock the cartridge to a set number of impressions. Once that counter hits zero the cartridge is declared spent whether or not ink remains inside. Resetting that counter is the technical part of the job, and it needs the right equipment.

How a refill and reset service actually works

The process is deliberately simple and runs by post.

1. Order the service for your exact cartridge. Pick the item that matches your machine and cartridge size from the refill and reset range. Sizes matter here: the same machine family often has 10ml, 20ml and 42ml versions.
2. Send in your empty cartridge. You will get an email confirmation at checkout. Print it, pack it with the cartridge, and post both to Franking Machine Ink, PO Box 4, Cannock, WS12 4GS.
3. We refill, reset and test. The cartridge is refilled with Royal Mail approved franking ink and the usage counter is reset so your machine reads it as new.
4. It comes back ready to use. You fit it exactly as you would a new one. Our walkthrough on changing a franking machine ink cartridge covers the fitting and priming steps if you want a refresher.

Because the cartridge has to travel to us and back, a refill is not the option to pick when you have run dry mid-run. Keep one spare cartridge on the shelf and send the empty away while the spare is in the machine. That way you are never waiting on the post. Our delivery information page sets out current despatch timings.

Does a refilled cartridge print as well as a new one?

It should, and that is the standard the service is built to. A refilled cartridge is filled with Royal Mail approved ink and reset to the manufacturer's published life, so you get the same impression count you would expect from a new cartridge of that size. If you want to sanity check what that number should be for your model, see how many impressions a franking ink cartridge prints.

Print quality problems after a refill are usually the same problems you would get after fitting any cartridge: a print head that needs cleaning, a cartridge that was not seated properly, or envelopes that are too glossy or textured to take ink cleanly. Our guide to faint or streaky franking impressions runs through the fixes in order.

Which machines can use the service?

Coverage is broadest across the FP Mailing Postbase family and extends to a range of Pitney Bowes, Quadient and Neopost cartridges. If you are not certain which cartridge your machine takes in the first place, read which franking ink cartridge do I need before ordering, because the part number on the old cartridge is the fastest way to be sure.

If your particular cartridge is not covered by the refill service, a compatible or original replacement is the alternative. We stock both across the FP Mailing, Pitney Bowes, Quadient, Neopost and Frama ranges. If you are weighing up the options, original versus compatible franking ink lays out the trade-offs honestly.

The environmental case

This is where refilling earns its keep beyond the invoice. A franking cartridge is mostly moulded plastic and electronics that survive far longer than the ink inside them. Refilling reuses that shell instead of replacing it, which is a genuine reduction rather than a recycling claim.

Disposal is also less straightforward for businesses than many mailrooms assume. Council household waste recycling centres generally do not accept waste from commercial premises, so office cartridges cannot simply be dropped off with the household recycling. Sending the empty back for refilling sidesteps that problem entirely, because the cartridge never becomes waste in the first place.

When buying new still makes more sense

Refilling is not always the right call. Buy a new cartridge if:

• The cartridge is physically damaged, cracked or has a scored print head.
• You need ink today and have no spare in the cupboard.
• Your machine is due for replacement or decertification, in which case running down existing stock is tidier.
• You are switching colour. Red is used for certain services and blue for standard UK franking, and you can check which applies in blue or red franking ink.

It is also worth storing spares properly so they are usable when you need them. Sealed, upright and at room temperature is the rule, and how long franking ink lasts goes into detail.

Frequently asked questions

Can I refill a franking machine ink cartridge myself?

No. The cartridge chip counts impressions and will still read as empty after a manual top up, so the machine will refuse to print. Refilling also needs Royal Mail approved ink, which is not the same as general printer ink.

How long does the refill and reset service take?

The cartridge has to be posted to us, refilled, reset and posted back, so allow time for the round trip. Keep a spare cartridge in the machine while your empty is away and you will never be held up.

Is refilled franking ink approved by Royal Mail?

Our refill and reset service uses Royal Mail approved franking ink, so impressions print to the standard Royal Mail equipment expects, including Mailmark barcodes.

Will a refilled cartridge print as many impressions as a new one?

Yes. The cartridge is refilled to its rated volume and the counter is reset to the manufacturer's published life, so you get the same expected impression count as a new cartridge of that size.

What if my cartridge cannot be refilled?

Not every cartridge is suitable, usually because of damage or the design of the print head. If yours cannot be refilled, a new original or compatible cartridge is the alternative and we stock both for all major franking machine brands.

If you are not sure whether your cartridge is covered, get in touch with our team with the part number from the old cartridge and we will tell you straight. Otherwise, browse the refill and reset service and put your empties back to work. For wider guidance on franking and Royal Mail services, the Royal Mail franking pages are a useful reference.