A470 Users Guide
Trouble Shooting Other Issues
Fault Mode
The printer will enter a Fault Mode and will not operate when certain failure conditions are en- countered. Confirmation of this condition can be accomplished by the host on the DTR (pin 8) or status with an
cover is depressed nor will it execute commands other the Reset <ESC><NUL> or Status <ESC><ENQ>. A parallel printer may indicate a fault when roll paper is low or out but is not in Fault Mode. Make sure the roll paper is present when conducting this test if DIP switches A1,A2, & A3 are closed ( parallel Interface selected) and switch A8 is Open (Fault On Low Paper).
The color of the LEFT LED on the front panel of the |
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printer will change from Green to Red if a fault condition | STATUS | SLIP | |
is encountered. Depressing the paper feed button on | |||
the printer cover will cause the printer to enter diagnos- |
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tic mode. This will cause the LED to flash a 3 bit code | POWER | LOW | |
to define the specific reason the printer entered Fault | |||
PAPER | |||
Mode. The error code is followed by a delay before be- |
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ing repeated. The diagnostic code will toggle the DTR |
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line and flash the Red LED if the | STATUS | SLIP | |
lected. It will toggle the Fault- line and flash the green |
LED if the parallel interface is selected. |
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| Error code |
| Diagnosed failure | |
● ● ▬ | Short | Short | Long | No motor sensor signal |
● ▬ ● | Short | Long | Short | Ram test failure |
● ▬ ▬ | Short | Long | Long | Firmware Error |
▬ ● ● | Long | Short | Short | No margin sensor signal |
▬ ▬ ▬ | Long | Long | Long | Head drive motor stalled |
The printer will remain in FAULT Mode until the power is cycled or the printer is reset with the <ESC> <NUL> command.
Pertech® 2006 | 20 |