Appendix A: Specifications
| Print Method | Impact dot matrix |
|
| Printhead | 9 pins, 0.30 mm diameter with thermal protection | |
| Print Speed |
|
|
| Mode | Characters per Second (CPS) | |
High Speed Draft (HSD) | 507 cps at 10 cpi |
|
Utility | 380 cps at 10 cpi |
|
Near Letter Quality (NLQ) | 95 cps at 10 cpi |
|
Super Speed Draft (SSD) | 570 cps at 12 cpi |
|
| Characters per Line (CPL) |
|
|
| Setting | ML720 | ML721 |
10 cpi | 80 cpl | 136 cpl |
12 cpi | 96 cpl | 163 cpl |
15 cpi | 120 cpl | 204 cpl |
17.1 cpi | 137 cpl | 233 cpl |
20 cpi | 160 cpl | 272 cpl |
| Emulations | Epson FX, IBM Proprinter, OKI Microline | |
| Interface | Standard: Centronics parallel, USB | |
| Optional: |
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| Graphics Resolution: |
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Epson/IBM | Single Density: 60 x 216 dpi | |
Emulations | Double Density: 120 x 216 dpi | |
| Quadruple Density: 240 x 216 dpi | |
MICROLINE | Single Density: 60 x 72 dpi / 72 x 72 dpi | |
Emulations | Double Density: 120 x 144 dpi / 144 x 144 dpi | |
| Quadruple Density: 240 x 144 dpi / 288 x 144 dpi | |
ML720/721 Printer Handbook | 67 |