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HP ENVY 6420e Ink: Choose the Right HP 305 or 305XL

The HP ENVY 6420e takes one black and one tri-colour HP 305/305XL cartridge. Check the part numbers below, then choose standard or XL for each colour separately.

Content updated:

All-in-one inkjet printer

HP ENVY 6420e

Functions
Print, copy, scan, send mobile fax
Print speed
Black: Up to 10 ppm · colour: Up to 7 ppm
Two-sided printing
Automatic (standard)
Document feeder (ADF)
Standard, 35 Sheets
Connectivity
1 Hi-Speed USB 2.0 (client); 1 Wi-Fi 802.11ac (dual band)

Source: HP Support UK

This printer takes HP 305 and HP 305XL

One black and one tri-colour cartridge; you can mix standard and XL per slot.

Part of the HP ENVY 6400e series on HP's HP 305 list.

Compare cartridge prices Choose 305 or 305XL

We found no offer for the HP ENVY 6420e at the UK retailers we track. HP still publishes its specifications in Support; the cartridges below are widely available.

Search for the HP ENVY 6420e yourself at

Amazon.co.uk Search Amazon.co.uk →

These are the retailer's own search results. We do not check price, stock or seller there: make sure the exact model matches and whether the printer is new or used.

The HP 305 printers are being phased out: HP Store UK and Currys only sell HP 308 successors now, while Argos still listed the DeskJet 2810e, 2820e and 4220e and Amazon.co.uk had marketplace offers for the DeskJet 2724 and Plus 4130 on 23 September 2026. Printer prices are separate from the cartridge prices below.

Diagnose before you buy · HP ENVY 6420e

Separate automatic document feeding, duplex printing and cartridge faults

  1. The 6420e has a 35-sheet automatic document feeder. Compare a copy from the flatbed with an ADF copy: a fault limited to feeding originals is not, by itself, evidence that either ink cartridge is empty.
  2. Automatic duplex is a paper-handling operation. If a sheet stops during the second side, inspect the paper warning and the accessible paper path rather than replacing a cartridge because printing stopped.
  3. If both flatbed copies and ordinary prints lose the same colour, move to the cartridge warning, tape and seating checks. For the light bar, distinguish setup purple from an amber error and read the accompanying code.

What to buy — if ink is actually needed

A workflow that scans many documents does not necessarily consume much ink: scanning and printing are different jobs. Size the cartridges for pages actually printed or copied. For mostly black document copies, start by comparing XL black plus standard colour.

When to stop: Stop pulling if an original or sheet will not release easily. Follow the model’s paper-handling guidance; do not put hands into a moving carriage.

Model specifications: HP ENVY 6420e · HP instructions / requirements. Decision guidance updated 19 October 2026; specifications retain their separate source date.

Specifications according to HP

Specifications of the HP ENVY 6420e, as HP states them
Functions Print, copy, scan, send mobile fax
Print speed black (ISO, A4) Up to 10 ppm
Print speed color (ISO, A4) Up to 7 ppm
First page out (ready) Black: As fast as 18 sec
Recommended monthly page volume 100 to 400
Print quality black (best) Black: Up to 1200X 1200 rendered dpi (when Printing from a computer) Color: Up to 4800 x 1200 optimised dpi colour (when printing from a computer on selected HP photo papers and 1200 input dpi)
Print Cartridges/Bottle, Number 2 (1 each black, tri-color)
Wireless capability Yes, built-in Wi-Fi 802.11b/g/n
Connectivity, standard 1 Hi-Speed USB 2.0 (client); 1 Wi-Fi 802.11ac (dual band)
Mobile printing capability Apple AirPrint™; Chrome OS; HP app; Mopria-certified
Paper handling input, standard Up to 100 sheets input tray
Paper handling output, standard 25-sheet output tray
Duplex printing Automatic (standard)
Borderless printing Yes (up to 8.5 x 11 in, 210 x 297 mm)
Scanner type Flatbed, ADF
Scan resolution, optical Up to 1200 dpi
Automatic document feeder capacity Standard, 35 Sheets
Scan speed (normal, A4) Up to 2.8 ipm (200ppi, black and white); up to 2.8 ipm (200ppi, colour)
Faxing Yes, mobile fax (send only)
Dimensions (W x D x H) 432.5 x 361.1 x 174 mm
Weight 6.16 kg

HP Support lists the HP 305 cartridges (3YM60AE to 3YM63AE) for this model. The same list also names HP 67 and HP 805: the cartridges for these printers outside Europe. In the UK you buy the HP 305. HP 305, 67 and 805 by region

Specifications taken on 23 September 2026 · HP Support UK

Cartridges for the HP ENVY 6420e

The ENVY 6420e has two slots: black and tri-colour. Both come in standard (HP 305) and XL (HP 305XL), and you can mix them.

Need both slots at once? See the HP 305 2-pack (6ZD17AE).

What does a year of printing with the ENVY 6420e cost?

Enter your usage; prices are prefilled with the lowest checked cartridge price.

Adjust prices (prefilled: lowest checked price, 13 November 2026)

Assumption: black pages use the black cartridge, colour pages the tri-colour cartridge; yield = HP's figure (ISO/IEC 24711). In practice a colour page often uses some black too and cleaning cycles use ink, so treat the result as a lower bound. You buy whole cartridges, so the calculator rounds up per year.

Compatible cartridges for the ENVY 6420e

The seller offers these products as suitable for HP 305/305XL printers. Check that your exact model is on the seller's list, and bear the dynamic security above in mind.

Original HP reference offers

Direct, checked original offers for a like-for-like check. Compatible products stay separate below.

Original HP

  • HP 305 Black

    3YM61AE

    £13.99

    HP Store
    View offer

  • HP 305 Tri-colour

    3YM60AE

    £13.99

    HP Store
    View offer

  • HP 305XL Black

    3YM62AE

    £19.79

    Cartridge Save
    View offer

  • HP 305XL Tri-colour

    3YM63AE

    £18.19

    Cartridge Save
    View offer
Yield = the seller's own figure (not tested by 305-ink.com). Comparison = the same composition in original HP 305/305XL cartridges at the lowest checked price.
Product Stated pages Price Original HP 305/305XL, same composition Retailer
Cartridge Save Premium 305XL Tri-colour (remanufactured) Compatible 1× tri-colour · compatible colour 375 £13.64 checked 13 November 2026 £18.19 HP 305XL colour 200 pages At Cartridge Save
Cartridge Save Premium 305XL Black (remanufactured) Compatible 1× black · compatible black 650 £14.84 checked 13 November 2026 £19.79 HP 305XL black 240 pages At Cartridge Save
Cartridge Save Premium 305XL 2-pack (black + tri-colour, remanufactured) Compatible 1× black + 1× tri-colour · compatible black 650 · colour 375 £28.34 checked 13 November 2026 £37.98 HP 305XL black 240 · colour 200 pages At Cartridge Save
TonerGiant compatible HP 305XL black Compatible 1× black · compatible black 240 Price at retailer £19.79 HP 305XL black 240 pages At TonerGiant
TonerGiant compatible HP 305XL black + tri-colour multipack Compatible 1× black + 1× tri-colour · compatible black 240 · colour 200 Price at retailer £37.98 HP 305XL black 240 · colour 200 pages At TonerGiant
Premium compatible HP 305XL black Compatible 1× black · compatible black 240 Price at retailer £19.79 HP 305XL black 240 pages At The Cartridge Centre
Check more retailers (5)

Not ranked: where no exact HP 305 listing has been verified, we show a shop or range link only — never an invented price.

Check your exact model

If your printer shows another letter or an extra digit, look that model up in the printer finder. Models such as the DeskJet 2920 or ENVY 6120e look similar but take HP 308.

Sources (4)

Facts from HP and standards bodies are labelled as such. Calculations (cost per page and annual cost) are estimates by the 305-ink.com editorial team. Last reconciled on .