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 |
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 |