High performance and Compact Printer mechanism
(STM-280 Series)
SAM4S has produced ECR printer mechanisms since 1994 and receipt printer mechanisms since 1998. SAM4S know-how and expertise has been featured in SAM4S ECRs and printers for over 20 years. Beginning in 2014, SAM4s will also produce 2" Thermal printer mechanisms.
SAM4S guarantees satisfaction to all its printer mechanism customers.
- High Speedy and Quality Printing
- Durability and Low noise
- Easy Paper loading
- Cover closed sensor (switch) to increase the accuracy
- Low power consumption and paper saving
| Model | STM-280H/280HN | STM-280V/280VN | STM-281VN | |
|---|---|---|---|---|
| Printing Format | Total number of dots | 384 dots/dot line | 384 dots/dot line | 384 dots/dot line |
| Dot Pitch (mm) | Vertical Direction 0.125 | Vertical Direction 0.125 | Vertical Direction 0.125 | |
| Horizental Direction 0.125 | Horizental Direction 0.125 | Horizental Direction 0.125 | ||
| Character Structure | 12(W) x 24(H)mm | 12(W) x 24(H)mm | 12(W) x 24(H)mm | |
| Character Size | 1.5(W) x 3.0(H)mm | 1.5(W) x 3.0(H)mm | 1.5(W) x 3.0(H)mm | |
| Number of Columns | 32 | 32 | 32 | |
| Available Printing Width | 48mm | 48mm | 48mm | |
| Printing Speed | Max. 100mm/sec | Max. 100mm/sec | Max. 100mm/sec | |
| Printing Direction | Unidirection with friction feed | Unidirection with friction feed | Unidirection with friction feed | |
| Paper Feeding | Feeding Method | Friction Feed (Drop In Type) | Friction Feed (Drop In Type) | Friction Feed (Drop In Type) |
| Minimum Feed Pitch | 0.0625mm | 0.0625mm | 0.0625mm | |
| P/Supply Voltage | Power Supply Voltage | 6 ~ 9.5V | 6 ~ 9.5V | 6 ~ 9.5V |
| Minimum Feed Pitch | 3.3V, 5V DC±5% | 3.3V, 5V DC±5% | 3.3V, 5V DC±5% | |
| TPH | Heat Element Density | 8 dots/mm (0.125 mm/dot) | 8 dots/mm (0.125 mm/dot) | 8 dots/mm (0.125 mm/dot) |
| Total number of head elements | 384 dots/line | 384 dots/line | 384 dots/line | |
| Heat Element typical resistance value | 176 Ω ± 4% | 176 Ω ± 4% | 176 Ω ± 4% | |
| Available printing width | 48 mm | 48 mm | 48 mm | |
| Line Feed Motor | PM type stepping motor | PM type stepping motor | PM type stepping motor | |
| Sensors | Head Temperature | Thermistor | Thermistor | Thermistor |
| Paper end sensor | Reflection Photo Sensor | Reflection Photo Sensor | Reflection Photo Sensor | |
| Printer Cover Open Sensor | STM-280H: Micro switch STM-280HN: None | STM-280V: Micro switch STM-280VN: None | - | |
| Paper Feeding | Paper Type | Single-Ply Thermal Paper Roll | Single-Ply Thermal Paper Roll | Single-Ply Thermal Paper Roll |
| Paper Size | 57.5 mm ±0.5mm(W) x Max Ø70mm or less | 57.5 mm ±0.5mm(W) x Max Ø70mm or less | 57.5 mm ±0.5mm(W) x Max Ø70mm or less | |
| Reliability | Life | 15,000,000 lines | 15,000,000 lines | 15,000,000 lines |
| MCBF | 37,000,000 lines | 37,000,000 lines | 37,000,000 lines | |
| TPH | 1x108 Pulse, 50Km | 1x108 Pulse, 50Km | 1x108 Pulse, 50Km | |
| Dimensions | 30(W)x15(H)x69.5(L)mm | 15(W)x30(H)x69.5(L)mm | 19.7(W)x31.5(H)x69.5(L)mm | |
