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Zebra Label Printers
Zebra GK420D 203dpi Label Printer

Zebra GK420D 203dpi Label Printer

£220.00 ex vat£264.00 inc vat
  • Delivery: Free (UK Standard)
  • Same Working Day Dispatch
  • Warranty: 1 Year
  • Software included: Yes
Windows Compatible Windows Compatible

Product Video
Questions (9)
Reviews (22)

Please note that this version of the GK420d printer is USB and Serial connection only.  If you require a the networkable version of this printer please click HERE

The most popular of the direct thermal Zebra desktop printers. Ideal for short run labelling. Perfect for despatch labelling and much more. The recommended Royal Mail DMO labeller!

The Zebra GK420d direct thermal label printer is probably the UK’s best selling label printer. The incredibly simple clamshell design allows the quick change of labels, plus a slot at the rear of the printer allows the use of fanfold tags or labels. There is no printer ribbon, no ink or any other consumable other than the labels.

This model has USB and serial connectivity and is supplied with the basic Zebra Designer labelling software and Windows drivers so printing from most Windows applications is very easy. As this model is extensively used for printing shipping and courier labels, it has become the label printer of choice for printing Royal Mail DMO labels. In fact this model is recommended by Royal Mail. The GK420d can take a range of labels including the standard 150mm x 100mm courier labels and labels supplied by Royal Mail and Parcelforce.

Despite its low cost the Zebra GK2420d label printer is surprisingly robust, our own warehouse uses several and they have performed day in day out with nothing more than an occasional clean of the printhead. The label print speed is excellent and the clarity of print on barcodes is excellent ensuring that the tracking of stock and parcels is never a problem.

  • 1 x Zebra GK420D 203dpi 
  • 1 x Mains Power Cable
  • 1 x Labelling Software CD
  • USB Cable
  • Print methods: direct thermal
  • USB & Serial Connection (NON NETWORK)
  • Transmissive media sensor
  • Fast 32-bit processing
  • Selectable print speeds up to 8" (203 mm)/second
  • Zebra Printer Management
  • Zebra's E3 Printhead Energy Control
  • USB & Serial connectivity

Read our blog post on the Zebra GK420D Label Printer using Royal Mail DMO

5 Average Rating 5/5 (22 Reviews)
5 stars Great little printer Written by

Really easy to set up & use. Saves a lot of time. Really pleased.

5 stars Superb little machine Written by

Brilliant for royal mail click and drop label printing. Why have i not used this before i dont know. True little gem .

5 stars Zebra GK420D 203dpi Label Printer Written by

Excellent price for this label printer. Quickly delivered and fab customer service! Will buy from here again for sure! Thanks

5 stars Excellent! Written by

Brilliant service from Labelzone. Printer arrived on time. Brilliant label printer. No problems at all

4 stars Great product, makes printing labels a breeze! Written by

Love this product. Works with royal mail labels.

5 stars thermal printer Written by

Very good.

5 stars Zebra Printer for Royal Mail Labels Written by

Workhorse for our online business. Invaluable tool, our third Zebra GK402d (all still going strong) - use for all Royal Mail labels. Given the correct set up works for UPS, Parcel Force etc.. Low maintenance - only occasional cleaning required.

5 stars Absolute workhorse Written by

This machine is simply indestructible. We bought one about 2 years ago. 500 prints a day without a single issue, and it is still going strong. Recommended!

4 stars Does what it says on the tin! Written by

I alear had the same printer before which was past its use by date. As it did the job, I re-ordered the same model. It works fine, although Windows does not recognise it as a GK420D but installs as a ZP450CTP! I rang Zebra why that was but they couldn't say why and just said as long as it works carry on. I would have given 5 stars if it installed as the model GK420D. Very strange :-)

5 stars Replacement printer all good Written by

Replacement printer. All good, very happy. I would like to point out that this was one of the easiest shopping experiences. With living in Jersey, sometimes it's a problem claiming back or deducting VAT, and also shipping Costs, This company was superb, they've got everything right, auto deduct vat and free shipping!! well done Labelzone, will be back next time for sure

5 stars Happy Written by

Good product. Works perfectly fine. Came fast and with no issues. Overall very happy with the service as well as with the product.

5 stars Good product and service Written by

Great service - delivery and packaging good. Used these printers for years - this is for a new site.

5 stars Great machine and fantastic service Written by

Brilliant machine, makes life so much easier. Should have purchase one years ago. Service from this shop was outstanding and faultless,

5 stars DB Written by

Excellent quick delivery. Received a phone all about my labels since they noticed I ordered labels too big for printer. Amazing customer service. Machine and labels are of best quality. Fast and tidy.

5 stars Affordable & Efficient Written by

The GK420D thermal printer has halved the time it takes us to get our orders dispatched to our customers. Easy to understand instructions to get you up an running in no time at all. By far one of the best investments any small company like ourselves could ever make. Thank you LABELZONE for the fast turnaround from the point of order to receiving our GK420D. Brian @ Uav-Tech Ltd

5 stars No hassle to set up and configure Written by

Easy drop-in replacement for a 2844 that had gone splat, and absolutely no hassle to configure for our software to talk to.

5 stars AS good as ever Written by

never fail to deliver both on price and service -thank you

5 stars Label printer that does the job Written by

Great little label printer, that I bought as I'd opened a Royal Mail account and needed a label printer. This was the one they recommended, and it was economic and works like a dream. Only slightly negative comment, is the installation instructions...I'm not fluent in Mandarin, so waited for Royal Mails instructions!!

5 stars Excellent Written by

Purchased this on behalf of my company just over a fortnight ago now and this has reduced dispatch times dramatically, helping to allow my staff to focus on other tasks. I can't recommend this printer highly enough, and it will pay for itself within a year due to the ink cost saving!

4 stars Reliable workhorse Written by

A reliable, industrially suited printer, best choice every time.

5 stars ebaying joy Written by

This thermal printer has nearly halved my packing time. No more chopping up labels and taping them to boxes. Money very well spent and a very easy to use sturdy printer. A very uncomplicated printer perfect for printing My Hermes and Parcel Force labels. Am very pleased and enjoying the extra spare time on my hands!

4 stars A good no-fuss printer Written by

Purchased this from labelzone at a price cheaper than I could find elsewhere on the net. It's a good, uncomplicated, budget option and seems to perform well (although we haven't had it long). As with all budget label printers, there are a lot of plastic parts which makes it feel a bit cheap but then you get what you pay for and it doesn't compromise functionality. I would certainly buy another one if required.

Share your thoughts with other customers… write your own review

Hi, Does this printer print label size 4 x 6 Inch?

Hi James

Yes this printer will take a 4" wide labe, so a 4" x 6" will be fine.

Best Regards


Hi I have question related to Zebra GK420D 203dpi Label Printer could i use Z-Select 2000D DT Label/ 32mmx25mm rolls on him?


If the labels are on the 25mm cores then they will be fine in the GK420D

Best Regards

Does this printer have an internal Ethernet connection?

Hi Amy

No this version of the GK420d is USB and serial only.  The network version of the printer is here:

GK420d With Internal Ethernet

Best Regards


Hi, Are you able to use this printer with it being connected to a laptop/ computer and not to a wall socket? I.e. Does it always have to be connected via plug to be used? Many thanks, Abdullah


The GK420d must be mains powered, so will require a 240v socket.

Best Regards

How do you change the carbon roll.

The GK420d is direct thermal only so there is no print ribbon to replace on this model.

I need to print directly to the printer from a PC application I am writing. I can directly control the RS232 port, so does the printer support direct access using, say, Epson print codes?

Hi Dave there is a programming manual available here

This should give you what you need. If not let us know and we can put in touch with Zebra tech support.


Is this printer compatible for wireless network so more than one computer can print to this printer?

This printer does not have wireless capabilities, you would need to look at the GX range of Zebra printers which have a wireless option available.

what is the biggest size labels i can order for the above printer? Regards James

The maximum print width for this printer is 104mm, the maximum length this printer will print is 990mm (using continuous media)  attached is a list of Direct Thermal Labels that will fit this printer.

Does this printer work Mac OS 10.6 and can it be networked Thanks

Zebra do not supply the drivers for their products to work with Mac, they only provide windows drivers.  This particular printer does not have a network card onboard, however you can buy a networked version of the GK420D.

Ask a question about this product

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