■PRINTER CONNECTOR (CN8) (FLEXIBLE PT BOARD) PIN ARRAYS
Control circuit side connector:
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| Contents | No. |
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| Signal | I/O | Contents | ||||||
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1 |
| PHK |
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| Photo interrupter (cathode) | 2 |
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| VSEN | I | Power supply for paper sensor | ||||
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3 |
| PHE |
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| O |
| Photo interrupter (emitter) | 4 |
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| VH | I | Head driving power supply | ||||
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5 |
| VH |
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| I |
| Head driving power supply | 6 |
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| GNC | — | Ground for head | ||||
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7 |
| GND | — |
| Ground for head | 8 |
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| DIN | I | Data input | |||||||
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9 | NOT | I |
| Data latch | 10 |
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| CLK | I | Clock | ||||||||
| LAT |
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11 |
| STB6 | I |
| Enable 6 | 12 |
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| STB5 | I | Enable 5 | |||||||
13 |
| STB4 | I |
| Enable 4 | 14 |
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| VDD | I | Logic Power supply | |||||||
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15 |
| STB3 | I |
| Enable 3 | 16 |
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| STB 2 | I | Enable 2 | |||||||
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| FOR |
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17 |
| STB1 | I |
| 18 |
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| TH | O | Thermistor | ||||||||
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| Enable 1 |
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19 |
| TH |
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| O |
| Thermistor | 20 |
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| GND | — | Ground for head | ||||
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21 |
| GND | — |
| Ground for head | 22 |
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| VH | I | Head driving power supply | |||||||
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23 |
| VH |
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| DESIGN | 24 | NEW | ||||||||||
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| I | Head driving power supply |
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| N.C. | — | Open terminal | ||||||||
25 |
| SW1 | I | Head open switch* | 26 |
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| SW2 | O | Head open switch* | ||||||||
27 |
| MT/B | I | Stepping motor coil | 28 |
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| MT/B | I | Stepping motor coil | ||||||||
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| excitation signal B |
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| excitation signal B |
29 |
| MT/A | I | Stepping motor coil | 30 |
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| MT/A | I | Stepping motor coil | ||||||||
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| excitation signal A |
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| excitation signal A |
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* on MCL003 / MCL004/ MCL303#01 and MCL303#02 models
6
