| Model | STP211 | STP312 | STP411 | ||
| Model number | -144 | -192 | -256 | -256 | -320 |
| Print system | Thermal serial dot system | ||||
| Print direction | Charater : Bidirectional logical seek Graphics : Unidirectional logical seek | ||||
| Print timing | Synchronized with the stepping motor | Synchronized with the stepping motor | Synchronized with the stepping motor | ||
| Home position detection | Mechanical switching system | ||||
| Number of columns | 24 | 32 | 42 | 42 | 40 |
| Character matrix (HxW dots) | 7 x 5 | 9 x 7 | |||
| Character size(HxW mm) | 2.40 x 1.50 | 2.40 x 1.20 | 2.40 x 1.26 | 2.40 x 1.60 | 2.47 x 1.88 |
| Dot configuration(HxW dots) | 8 x 144 | 8 x 192 | 8 x 256 | 9 x 320 | |
| Dot pitch(vertical mm) | 0.35 | 0.35 | 0.35 | 0.35 | 0.28 |
| Dot pitch(horizontal mm) | 0.32 | 0.24 | 0.25 | 0.35 | 0.28 |
| Printing width/Paper wodth(mm) | 46.1 / 58 |
64.0 / 80 |
89.6 / 112 |
||
| Printing speed(cps) | 46 | 42 | 41 | 31 / 52* | |
| Operating voltage range (V) | 4.0-5.5 | 4.5-5.5 | |||
| Operating temperature range(° C) | 0 to 50 | ||||
| Dimensions(WxHxD mm) | 84 x 47 x 27 | 126.5 x 45 x 20.4 | 153 x 44.5 x 20 | ||
| Weight (g) | Approx. 110 | Approx. 120 | Approx. 135 | ||
*Available
depending upon the motor control method.