The first thing to do is plug the Star Micronics printer directly into an available ethernet port on your router and power up the printer. Once the printer is powered up, make sure your Android device is on the same network as is the printer. Next, fire up the Square App, log into your account, and swipe right from the left edge of the screen. From the sidebar, tap Account, and then tap Settings. The Settings window (Figure A) should list Printers — tap that and select the printer to be used.
Update: After several months this printer is still working strong and still haven’t had a problem with it. I noticed a couple of people complain about receiving the wrong printer- well the reason they received the wrong printer is because they ordered the wrong printer. The title plainly states the model is TSP143U, USB. TSP143U is the USB model, hence the U. If you need the ethernet model you’ll need one of the TSP143L series models.
Fonts Included: Column Capacity: 42/42 or 33/35 columns Character Size: 1.20 x 3.10 / 1.60 x 3.10 (W x H mm) Fonts: 7 x 9 / 9 x 9 Character Set: 95 Alphanumeric, 37 International, 128 x 123 GraphicTraditional / Simplified Chinese, Thai, Japanese, Korean Characters per Inch: 17.8/16 or 14.5/13.3 cpi
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Many receipt printers on the market offer cross compatibility with major brands and command sets, giving you more options if you need to replace an aging receipt printer. Some of these printers do require additional configuration to change emulation modes; our excellent support staff is happy to help you with these changes.
There are many benefits to having a receipt printer in your Restaurant, Retail, Grocery, or Hotel. Receipt Printers offer you the ability to market directly to your customer and keep them coming back with promotions. Whether you need a desktop, mobile, or kiosk based printer, we have a model to meet the demands of any business. We also carry receipt printers that are compatible with your Apple or Android devices.
Ink jet receipt printers use the same type of technology you see in home printers, using tiny nozzles to spray ink onto receipts. With ink jet printing, you can add color logos or other personalized elements to your receipts. However, you do have to buy replacement ink jet cartridges, adding to the long term costs.
Buying this combo and getting each Square POS piece individually was much cheaper than buying it from Square as part of their whole POS system. Plus, we were able to get our entire Square system in matching white. Cash box plugs into printer with a cable that looks like a phone cable, so it doesn’t require a USB port.
The STAR MICRONICS SM-T300I is also a light weight receipt printer. But it’s very durable and rugged. It’s also Apple MFi certified for iOS phone and iPads. It also works with Android and Windows. It’s been tested to take a little bit of beating and is used by people who are outside a lot. Having said that the price is higher than other printers. If you need something rugged, this device may be the one for you. But if you don’t. You will want to look at something else as this device can get expensive. The SM-T300i is easy to use. There is a well written and very detailed user manual. The user manual gives details on how to configure the receipt printer and how to load paper. Here is a link to the Star Micronics SM-T300i User Manual.
Hi @McNabbGames — I went ahead and combined your thread with another seller’s who had a similar question. I can assure you that we’re always looking into more affordable hardware options for our sellers. As for the technical explanation, from my limited understanding (I’m not an engineer), each printer manufacturer has a specific driver for their hardware, and since manufacturers don’t build printer drivers for Square Register, we would have to build one for each printer model – which is something we don’t have the bandwidth to do. 
Receipt printer worked wonderfully with my Square checkout terminal and drawer that I also ordered off Amazon. I love that it’s thermal so you don’t have to purchase ink. It was easy to load the paper and easy to unload. All the items you need for the printer are here on Amazon so I could have it delivered directly to my workplace.
Unless proven otherwise, I agree.  And in my business, giving a client a receipt on what amounts to a piece of adding machine paper is unprofessional.  I should be able to use any printer that is compatible with the iPad, not just the uni-tasker receipt printers.
Really solid receipt printer. Less expensive than 90% of the machines in its class, but it holds its own without an issue. Installation was slightly more involved than other reviewers had let on (it helps to know which port you’re connecting this through), but overall it was still pretty simple to get working. Just make sure that you don’t have an old version of the Epson receipt print driver on your computer, as this can cause the installation to fail.
Here are more informative websites.

This printer is fast and has useable options. I use it with my iPad and Square credit card reader. You can also use it for POS or other systems or configurations. Using it with Square credit card processor I save paper because I only print the customer copy because all the other transaction data is accessed online. And when I tap print on my iPad it starts and completes the printing in just one second. I saw this printer being used at my local drug store with a different setup and it too works well. Give it a try and I think you’ll be glad you did.
As a bluetooth only device, it is a bit glitchy. If you are wanting to use it with a phone/tablet only as a standalone device, look elsewhere. The miura m010 reader works great for this, though is unfortunately not available on amazon.
I have two businesses and both of them use these T20s, they are super fast printers. No more dealing with off-brand junk. This printer is the real deal and the auto cut works every time. I would purchase again for sure.
Just click the Transaction and the Receipt will preview on the right-hand side. At the bottom, you’ll see the receipt number (ex: Receipt #H8R5). Click that and it will show you the digital version of the receipt. From there you’re good to print on the standard 8×11 printer paper.
Printouts created using POS printers may include the business name, contact number, and address. This makes it easy for shoppers to remember where they bought items and return there for similar goods, providing an excellent marketing opportunity. Many POS printers also offer reverse-side printing, letting you add coupons or valuable tips and store policies to the back of each receipt.
Like I said the only issue im having which is not the printers fault is me utilizing the ESC/POS commands but I was having that issue with my other printer simply because I don’t program in C# and VB.Net(ALTHOUGH IT HAS SOME SAMPLES FOR VB6 FOR THOSE WHO STILL USE VB6!!)
*Note: We have had some Sellers complain about the receipts printing over too many pages when they want it to only print on one. The trick is to reduce the scale of the image within your printing options until it fits. (see screenshot)
The Star Micronics SM-S230i is light weight at only 7.7 ounces. It is small and easy to carry around. If you’re someone who sell at a farmers market, craft fair or some other place where mobility is very important, the Star Micronics SM-S230i may be what you need. It uses thermal paper and connects to your iPhone, iPad with bluetooth or USB. ​Here is the user manual for the Star Micronics SM-S230i.
Modern POS printers often feature speeds measured in inches per second, and these high-quality versions provide fast operation. They may also bear an indication of the mean time between failures, letting you know just how long you can expect the printer to provide excellent service and continued operation. These MTBF ratings can easily range into the hundreds of thousands of hours between service calls, delivering exceptional reliability.

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