| Print speed | Up to 550 char/sec - ultra speed draft - 10 cpi  | 
| Up to 584 char/sec - high speed draft - 12 cpi  | 
| Up to 487 char/sec - high speed draft - 10 cpi  | 
| Up to 366 char/sec - draft - 10 cpi  | 
| Up to 121 char/sec - laser quality - 10 cpi | 
| Resolution | 10, 12, 15 cpi | 
| Number of Pins | 24 pins, 80 columns | 
| Character Pitch | 10cpi: 80 columns | 
| Interface | Hi-Speed USB - compatible with USB 2.0 specification, Parallel | 
| Memory | 128 kB | 
| Paper Size | 6 + 1 original (ความหนารวมไม่เกิน 0.014 นิ้ว)  | 
| Continuous paper 4 in - 10 in (width), 3.9 in x 3.9 in, 10.12 in x 14.29 in, 182 x 210 mm, 216 x 363 mm  | 
|   | 
| Paper Thickness Continuous Paper : 0.065 mm - 0.49 mm  | 
| Paper Thickness Label Base Sheet : 0.16 mm - 0.19 mm  | 
| Paper Thickness Multi Part : 0.12 mm - 0.46 mm  | 
| Paper Thickness Single Sheet : 0.065 mm - 0.14 mm | 
| Paper Capacity | Paper Formats : Sheet Paper (single- and multi-layer), Continuous Paper (single- and multi-layer), Labels (single- and multi-layer), Roll Paper, Envelopes, Cardboard | 
| Cartridge | EPSON SIDM BLACK RIBBON CARTRIDGE FOR LQ-590 : C13S015337 (5 Million Chars) | 
| MTBF | 25,000 Hours | 
| Print head life | 400 Million Strokes/Wire | 
| Operating System Support | Windows 10, Windows 7, Windows 8, Windows Vista, Windows XP | 
| Noise level | Operation: 55 dB (A) | 
| Power Supply | AC 220 - 240 V, 50 - 60 Hz | 
| Power Consumption | Operating : 49W  | 
| Sleep Mode : 0.5W  | 
| Power Off : 0.1W in power off mode | 
| Environment | Temperature : Operation 5° C - 35° C  | 
| Humidity : Operation 10% - 80% | 
| Dimensions | 437 x 375 x 177 mm (Width x Depth x Height) | 
| Weight | 7.2 kg | 
| Package Contents | Main Unit  | 
| CD-ROM  | 
| Set-up Manual  | 
| AC Power Cable  | 
| Ribbon Cartridge  | 
| Guide Stacker  | 
| Wing  | 
| Tractor | 
| - | Barcodes : Code 128, Code 39, EAN-13, EAN-8, Interleaved 2 of 5, POSTNET, UPC-A, UPC-E  | 
|   | 
| Character Tables : PC437, PC708, PC720, PC850, PC858, PC864, PCAR864, ISO-8859-15, Roman 8, Italic |