Thermal Printer

SparkFun Thermal Printer
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Price: £41.40
(£34.50 + VAT)
Stock Quantity: 3
Model: COM-10438
Manufacturer: SparkFun
Average Rating: 5 out of 5 Stars!


Thermal Printer

This is a thermal printer like you would find on a cash register or adding machine. It will print simple strings passed to it via TTL serial, bitmap images (poorly) and it even generates several different formats of barcodes!

The thermal printer takes 2.25" (57mm) wide thermal paper with a max roll diameter of 1.5" (39mm). Thermal paper is inexpensive and commonly found in most office supply stores in 85ft lengths. You may have to remove some paper from these rolls in order for it to fit into the printer. But, you can always use the excess paper in the printer, since you don't need to have a 'core' in the paper for it to work.

The back panel has 2 3-pin connectors; one for power and one for serial communications. The thermal printer ships with default 19200bps baud rate. If you're using this printer in conjunction with an Arduino, you're going to need to connect it to the "Vin" pin and attach an external power supply, as the printer will draw more current than USB is capable of delivering. We've found that these printers can draw about 1.5A because they need to generate heat, the best supply for the job is a laptop-style power supply.

The print head has a rated life of 50km! That means this printer can handle a marathon's distance (~30 miles) of printing before the head hits its rated limit.

Use this printer in any project where you need a hard-copy of the output, or in an art project where you want to keep the output to stick on your fridge, or to build a DIY cash register for your lemonade stand!

NOTE: There is no protection in the printer for reverse voltage power supply. Also it is possible (as both connectors are the same) to mix up the power and comms leads. These printers are fully tested by ourselves prior to dispatch and we will not accept returns where power has been applied incorrectly causing damage to the unit. Please make sure your connections are correct before applying power.



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Thermal Printer
Click to enlarge
Thermal Printer
Click to enlarge
Thermal Printer
Click to enlarge
Thermal Printer
Click to enlarge
Thermal Printer
$ 41.40 New In Stock
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