| Model | CT-S281 |
| Printing method | Line thermal dot printing |
| Print width | 48mm (384 dots/line) |
| Resolution | 8 x 8 dots/mm (203 dpi x 203 dpi) |
| Printing speed | Max. 80mm/sec |
| Number of print columns | Font A: 32 columns (12 x 24 dots) Font B: 42 columns (9 x 24 dots) Font C: 48 columns (8 x 16 dots) |
Character size (W × H) | Font A: 1.50 × 3.00 mm Font B: 1.13 × 3.00 mm Font C: 1.00 × 2.00 mm |
| Character type | Alphanumeric, International, PC437/850/852/857/858/860/863/864/865/866, WPC1252, Katakana, Thai Code 18 |
| Kanji (JIS level 1, level 2), Kana, JIS C 6226-1983 |
| User-defined logo/character | User-defined characters can be registered in flash memory |
| Barcode type | UPC-A/E, JAN (EAN) 13/8 columns, ITF, CODE 39, CODE 128, CODEBAR, CODE 93, PDF417, QRCODE |
| Line spacing | 4.23mm (1/6 inch), selectable with a command (min 1/203 inch) |
| Paper roll | Thermal paper roll: 58 × F83mm Paper thickness: 0.06 to 0.10 mm |
| Interface | Serial (RS-232C compliant) or USB |
| Buffer size | 4K bytes/45 bytes |
| Power consumption | Standby: Approx. 2W Printing: Approx. 18W (Approx. 26W max.) |
| Power source | AC adapter (28AD), Input: AC100-240V Output: DC8.5V, 3.0A |
| Weight (approx.) | 630 g |
Outer dimensions (W × D × H) | 106 × 180 × 105 mm |
| Operating temperature and humidity | 5 to 40 °C, 10 to 85 % RH (no condensation) |
| Storage temperature and humidity | -20 to 60 °C, 10 to 90 % RH (no condensation) |
| Reliability* | Thermal head: 100,000,000 pulses or 50 km Auto cutter life: 1 million cuts |
| Safety standards† | UL, C-UL, FCC class A, TUV-GS, CE marking |