Below is an IS series ink cartridge yield table listed on the Neopost website. All our compatible cartridges are programmed to give exactly the same yield as an original as below:

For verification on the Neopost website please copy and paste the following url into your internet browser: http://www.neopost.co.uk/cartridgecapacity.asp?OrderCode=300620

Cartridge Capacity 
ProductMachineCartridge Yield
Franking Machine Ink - IS-330/350/420/430/440/460/480 Inkjet CartridgeIS-330Average yield 6500 impressions
Franking Machine Ink - IS-330/350/420/430/440/460/480 Inkjet CartridgeIS-350Average yield 7620 impressions
Franking Machine Ink - IS-330/350/420/430/440/460/480 Inkjet CartridgeIS-420Average yield 9290 impressions
Franking Machine Ink - IS-330/350/420/430/440/460/480 Inkjet CartridgeIS-430Average yield 10600 impressions
Franking Machine Ink - IS-330/350/420/430/440/460/480 Inkjet CartridgeIS-460Average yield 12000 impressions
Franking Machine Ink - IS-330/350/420/430/440/460/480 Inkjet CartridgeIS-480Average yield 12800 impressions
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