Epson TK14 operation manual Error Processing, Error types, NEAR-END Paper Error

FENIX IMVICO TK14 OPERATION MANUAL

3.7- ERROR PROCESSING

3.7.1- Error types

When an error happens, the TK14 visually notifies the error type through the led, located next to the buttons. This fact allows the final user to have a direct and visual reference on the current printer status. On the other hand, the printer status and all its possible errors can also be obtained via software through the DEL EOT command. In this way, the application developer can have more complete information on the printer status, therefore being able to act accordingly.

The errors detected by the interface are the following: ‘near-end paper’, hardware error, power supply voltage error and printing head temperature error.

When any of these errors happen, the led blinks with a different blinking timing sequence for each of them. If no error happens the led will light permanently green.

ERROR				Sequence (RED BLINKING)
				(a = 0,5 seconds	, b = 2 seconds.)
‘NEAR-END	Led ON			a
PAPER’		1	b	1
	Led OFF
				t
PAPER	Led ON
JAM	Led OFF	2		2
					t
	Led ON
HARDWARE	Led OFF			4	4
					t
VOLTAGE	Led ON			6	6
ERROR	Led OFF
					t
	Led ON
TEMPERATURE				7	7
	Led OFF					t
	Led ON
No Paper /		Orange (no blinking)			t
Platen open	Led OFF

Fig. 3.8- LED Blinking sequence (RED).

More information on these errors can be found below:

NEAR-END PAPER ERROR

[Description] This error happens when the ‘near-end paper’ sensor detects that the paper roll is close to be finished. This means that using a paper roll with an external diameter of 80 mm and inner diameter of 25 mm, the sensor will trigger the error when there are still 10 meters of paper approximately.

[Recover action]This indication should be really taken as a warning, not as an error as such. The action depends on the application and the developer’s criteria. To recover from this error, user must change the paper roll.

[Notes]	Depending on the settings of command “ESC c 4” this error stops the printing or not (see
	point 4. CONTROL COMMANDS). If this error is set to stop the printing, it will be
	detected as any other error. If this error is not set to stop the printing, user must detect it
	by polling the status bytes. This error is indicated in the parallel port depending on the
	conditions set by the ”ESC c 3” command (See point 4. CONTROL COMMANDS).

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