8. CN8 Connect to operation panel
Printer side connector:
| Pin# | Signal name | In/Output | Functions | Remarks |
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| 1 | /LF | Input | Paper feed signal input | Active at L |
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| 2 | ALM | Output | Printer error signal | Output in |
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| Output | printer error |
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1) | 3 | SG | - | Signal ground |
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Paper feed is executed according to the paper feed pitch set by ESC 2, ESC 3. However, if | ||||||
| there is no paper, line feed is not executed. |
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2) | While paper feed signal is at “L”, set Power on to activate | |||||
3) While paper feed signal is at “L”, release INIT signal to “H” to activate diagnostic printing.
4) ALM signal (for operation panel) indicates printer statuses as follows:
A protective resistance is incorporated on the board, a light diode can be located between 2 and 3. 2: anode and cathode.
Display pattern | Printer status | How to solve the problem | |
1 | Normal status |
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0 | Print (receive) ready |
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1 | No paper | Load the paper | |
0 |
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Head up status | Set head down | ||
1 | F/W write mode | Set the power on again | |
0 |
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Presenter in cramp status | Pull out the clamped paper | ||
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1 | Head temp high (80˚c) | Printer returns normal at head temp of | |
0 |
| 60˚c | |
Wrong head connection | Connect head cable properly | ||
1 | Remove jammed paper and turn | ||
0 | Presenter error | power on again, or input INIT signal |
9.CN9 Connect to presenter
Pin # | Signal | Input/output | Remarks |
6 | LED + | Output | To sensor LED1 |
7 | Sensor 1 | Input | From sensor 1 |
8 | SG | - | Signal GND |
9 | LED2 + | Output | To sensor LED2 |
10 | Sensor2 | Input | From sensor2 |
11 | SG | - | Signal GND |
12 | M + | Output | Motor drive output |
13 | M - | Output | Motor drive output |
* Connect to
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