| Model |
DP-654 |
DP-657 |
| Printing method |
Serial impact dot matrix |
| Printing direction |
Bi-directional |
| Printing speed |
3.6LPS±10% |
3.0LPS±10% |
| Number of columns |
40 columns, 360 dots/line |
40 columns, 400 dots/line |
| Font |
7 × 7 or 7 × 9 (half-dot) |
| Character size(W × H) |
1.36 × 2.4mm |
1.2 × 2.4mm |
| Line spacing |
1/6 inch |
1/9 inch (DR617DFG) |
| Motor |
Voltage: 24V V DC / Peak current: Approx. 1.5A / Average less than 0.3A |
| Reset pulse sensor |
Mechanical leaf switch |
| Dot pulse sensor |
Photo interrupter |
| Home position sensor |
Photo interrupter |
| Printing solenoid |
Voltage: 24V±1V DC / Resistance: 17Ω(24V DC, 25°C) |
| Paper feeding solenoid |
Voltage: 24V +1 -2 DC Resistance: 33Ω±10% |
| Connector terminals |
Connector 1(S16B-PH-K-S(16P): Counterpart PHR-16(16P)manufactured by JST)
Connector 2(S10B-PH-K-SC(8P): Counterpart PHR-10(8P)manufactured by JST) |
| Connecting method |
Pin connector |
| Paper feeding |
Friction feeding or sprocket feeding |
| Ink ribbon cartridge |
Two colors (Red and Black ), Single color (Black) |
| Paper feeding speed |
18 lines/sec. |
| Printing paper |
Receipt and journal 37~38mm, Outer dia Max. φ83mm |
| External dimensions (W × D × H) |
137 × 138 × 63.5mm |
| Weight |
Approx. 690g |
| Operating temp. range |
0~50°C |
| Storage temp. range |
-25~70°C |
| Reliability |
Mechanism: MCBF 4.0 million lines / Head: 80 million characters |
