| Features |
| 3 Emulations in OneSmall size |
| light weight, and low price |
| High-speed print (Bi-directional) |
| Red and black print |
| Auto load |
| Paper end sensor |
| Built in power supply |
| Options |
| Special purpose winder AW-3-E (Option) that will be placed separately |
| General Specifications |
| Print method: Serial dot impact method (Bi-directional), 2-pass graphic (Unidirectional print) |
| Print width: Character type: 63.6 mm Graphic type: 38.7 mm |
| Print head: 9 pins |
| Print speed: Character type: Approx 3.6 lines/second Graphic type: Approx. 3 lines/second |
| Print columns 40 Columns |
| Interface: Serial (RS-232C), Parallel (Centronics compliant) |
| Command system: CBM mode, STAR mode, ESC/POS mode. The user can select the mode with the DIP switch and preset jumpers. |
| Input buffer: 6KB or 25 bytes (Selectable with the DIP switch) |
| Drawer function: 2-drawer, 1-drawer switch |
| Auto loading function: Automatically feeds the paper by several lines when it is inserted. |
| Paper end detection: Stops printing when the paper has run out. |
| Paper near end detection: Stops printing when the paper is running out. (Settable with a command) |
| Character size |
| Character type: 1.35 mm (W) x 2.4 mm (H) (7 dots)1.36 mm (W) x 3.1 MM (H) (9 dots) |
| Graphic type: 1.20 mm (W) x 2.4 MM (H) (7 dots)1.20 mm (W) x 3.1 mm (H) (9 dots) Line spacing |
| Character type: 4.23 mm (1/6 inch)Graphic type: 2.28 mm (1/9 inch) |
| Media |
| Ordinary paper and non-carbon paper: 76+/-9.5 mm (W) x ø83 mm (OD) |
| Ink Ribbon: Special purpose ribbon cartridge: Red/Black or Single Color (Black or Purple) |
| Model Differences |
| 3550: No auto cutter |
| 3550: WeightApprox. 2.8 kg |
| 3550: Outer dimensions 160 (W) x 212 (D) x 194 (H) mm |
| 3551: Auto cutter: AC-134-E (Capable of partial and full cut) |
| 3551: Weight Approx.: 3 kg |
| 3551: Outer dimensions: 160 (W) x 212 (D) x 173 (H) mm |
| Environmental |
| Operating temperature and Humidity: 0 to 40°C, 35 to 85 %RH (No dew condensation) |
| Storage temperature and Humidity: -20 to 60°C, 10 to 90 %RH (No dew condensation) |