Fitted with an automatic cutter, the Epson C31CA85790 is a USB-connected desktop direct thermal receipt printer running at up to 11.81 in/s and 180 x 180 dpi across a 2.83-inch print width. It accepts roll paper up to 3.15 inches wide and 3.15 mil thick on rolls to 3.27 inches in diameter, powered by a 24 V DC adapter. Standard memory stands at 4 KB, and barcode support spans UPC-A, UPC-E, Code 39, Code 128, EAN-8, EAN-13, ITF, Codabar, PDF-417, QR Code, Maxi Code, GS1-128 and GS1 DataBar variants. A programmable buzzer and Chinese font expansion round out the feature set. The printer weighs 3.50 lb in a dark gray chassis measuring 5.8 in tall, 5.7 in wide and 7.7 in deep, with Mac and PC platform support. FCC, ICES-003 Class A, UL1950, TUV (EN60950-1) and Energy Star certifications apply, alongside RoHS compliance and a four-year limited warranty.