If you have a Square Stand, in addition to the printers above, you can use certain USB interface receipt printers. The following receipt printers are only compatible with the Square Stand, not the Square card reader:
Fonts Included: Font Size: 5 x 9 / 7 x 9 Character Size: 1.20 (W) x 2.42 (H) / 1.50 (W) x 2.42 (H) mm Character Set: 95 Alphanumeric, 32 International Code Pages: 40 Character Per Inch: 16.90″ / 14.10″
Acts as a regular printer, you install it, and print whatever you want to it and it automatically scales it down to the margin on the printer paper and done deal(No need to go around playing with settings) NOTE: CHROME STILL LIKES TO USE 2 MILES OF THE PAPER SO I DONT KNOW ABOUT CHROME AS MY POS FRONT END. I USE FIREFOX OR OPERA)
EOM-POS Thermal Receipt Printer- USB, Ethernet, Serial Ports- Auto Cut – Cash Drawer Port (RJ11/RJ12)- Paper Width 3 1/8″ (80mm) – NOT COMPATIBLE with Mac, Square, Shopkeep, Clover, Shopify, or Paypal
Thermal Receipt Printer, PoweredUSB and USB Interfaces, Auto-cutter. No power supply. Order cables separately. Color: Dark gray. (Dual interface printers require modifications to the printer to use the standard USB interface. The standard USB port will not work unless you use power supply and reconfigure printer by removing the PoweredUSB card). Please Call for more information.
Purchased this item OCT 2014. Fast printing and compatible with Microsoft POS 2.0. It’s a reliable receipt printer that power on 16 hrs / day and 7 days / a week at my liquor store. I would buy it again if needed for my other business.
This thermal printer is designed for network and kitchen printing. 58mm and 80mm adjustable printing paper width, 300mm/s of high speed printing with excellent water resistant, oil proof, dustproof st…
Fonts Included: Fonts: 7 x 9 / 9 x 9 Column Capacity: 42/42 or 33/35 columns Character Size: 1.20 x 3.10 / 1.60 x 3.10 (W x H mm) Character Set: 95 Alphanumeric, 37 International, 128 x 123 Graphic Traditional / Simplified Chinese, Thai, Japanese, Korean Characters per Inch: 17.8/16 or 14.5/13.3 cpi
The Epson TM-U220 impact printer has been a mainstay in kitchen printing and dry cleaners for many years. The printer uses a ribbon to transfer ink to paper, making it more resistant to smears and discoloration from heat and humidity. Available with a variety of interfaces and cutting methods, the TM-U220 is a solid investment.
Fonts Included: Character Size: Font A: 12 × 24 Font B: 9 × 17 Font C: 9 × 24 KOR, CHN, JPN: 24 x 24 Characters Per Line: Font A: 42 Font B, C: 56 KOR, CHN, JPN: 21 Character Sets: Alphanumeric: 95 Extended Graphics: 128 × 37 page International: 32
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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. 
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.
With so many receipt printers on the market, it’s hard to know which one will support your software while giving you the best return on your investment. Thankfully, we have researched and reviewed these printers, testing them against software packages, and have determined that these are the best receipt printers in their class. From impact printing for kitchens and dry cleaners, to fast retail receipt printers for customer checkout, these printers will give you the best experience at your business.
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Cash Drawer   Features: This cash drawer box is made from robust steel. Comes with RJ11 cable, plug for connection to receipt printers. Standard-duty, fast and reliable cash drawer. The 3-position …
The following is an overview of the ShippingPass Pilot subscription service. You should review the Terms & Conditions for a more detailed description as well as service limitations prior to signing up for ShippingPass.
Fonts Included: Font Size: 5 x 9 / 7 x 9 Character Size: 1.2 (W) x 2.42 (H) / 1.5 (W) x 2.42 (H) mm Character Set: 95 Alphanumeric, 32 International Code Pages: 40 Character Per Inch (CPI): 16.9 / 14.1
Zebra POS Receipt Printers | Star Micronics POS Receipt Printers | Epson POS Receipt Printers | BIXOLON POS Receipt Printers | star POS Receipt Printers | Brother POS Receipt Printers | APG POS Receipt Printers | Fargo POS Receipt Printers | Intermec POS Receipt Printers | Datamax POS Receipt Printers
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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.
Printers can be a tough purchase decision, when you factor in the vast number of choices to research. The HP CP5225n and Lexmark Forms Printer 4227 plus are both suitable picks for IT workers and telecommuters…
It is a simple process all I can think is that square gets a percentage of royalties from their supported printer sales and thats why they are locking everything down to these ridiculously overpriced pieces of equipment. 
*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)
To create your own bar codes and labels, you’ll need to use a third-party application. At the moment, we don’t support bar code and label printers and can’t guarantee compatibility, but many customers have success using the DYMO Label Writer 450 and labels with Square.
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Product – Bixolon Srp-350plusiii Direct Thermal Printer – Monochrome – Wall Mount – Receipt Print – 2.83″ Print Width – 11.81 In/s Mono – 180 Dpi – 64 Mb – Usb – Serial – Ethernet – 3.15″ (srp-350plusiiicosg)