Fenix Imvico EPC1100 Operation Manual - 4 – Error Processing
FENIX IMVICO EPC1100 OPERATION MANUAL
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4 – ERROR PROCESSING
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The EPC1100 processes 3 types of error:
•
Head
temperature
error.
•
Head-up/Out-of
paper
error.
•
VCC/VP
error.
When an error occurs, the EPC1100 reports it to the host sending a one-byte code via
TxD (CON4, Pin 15), in the present baud rate configuration. Printing is not available
and no other operation is performed. Reception of data is not allowed (/RTS = 1
CON4, PIN16 for serial transmission, BUSY = 1 CON4, PIN11 for parallel
transmission). The error is continuously transmitted until its cause disappears (in case
that the EPC1100 can recover from that error).
The causes of the errors and the corresponding recovery are listed below.
•
HEAD TEMPERATURE ERROR.
If the thermal head temperature is higher than 80ºC, a head temperature error
occurs.
The EPC1100 reports the error sending the 68H code via TxD (for the serial
transmission) and setting the CON4, PIN13 (/ERR) to 0 (for
the
parallel
transmission).
This is a recoverable error. The EPC1100 allows printing when thermal head
temperature goes below 59ºC.
•
HEAD-UP/OUT-OF PAPER ERROR.
If the head is up or there is not paper, an error occurs.
EPC1100 rapports the error sending the 63H code via TxD. It is possible to know
this error testing PE signal (CON4, Pin 12).
This error is not recoverable. User must load paper and close the upper case.
•
VCC/VP ERROR.
The EPC1100 has an independent logical circuit that continuously checks VCC
and VP.
If any of them are out of the allowable range, not power supply is applied either to
the microcontroller or to the LTPH245 thermal printer mechanism. In this way, any
sudden increase of VCC or VP (up to 30 v dc) will not damage either the interface
or the LTPH245 thermal printer mechanism.
To notice this error, user must test the /ERR signal (CON4, Pin 13).
This error is recoverable. When the VCC and VP return to the permissible range,
the EPC1100 microcontroller and LTPH245 printer mechanism are
power
supplied.