Appendix A — Error Handling
148 ESim for the PC4 and PF8 Printer Programmer’s Reference Manual
Error Handling Principles
The firmware is able to handle a number of error conditions.
Code numbers represent the different error cases.
The printer controls output of the error code and its format and
waits until the error recovery is performed for each error code.
Error Action Source
For details on each error type, see “Error Types” on page 150.
A - Command Errors
The biggest group of error codes is command format and data
information errors such as “Syntax error” or “Form or image
name duplicate.” This source generates errors of type A.
B - Printing Errors
Printing errors, such as “Out of media,” “cover opened,” and
“cutting not completed”, occur when printing cannot be
correctly performed or completed. This source generates errors of
type B, C, and D.
C - Status
A status error is not a true error case, but the operator should be
made aware of the situation. A typical case is “LTS-detection
waiting”. This source generates errors of type E.
D - Special Mode
Some errors cause the printer to stop responding or generate
unexpected output. Examples are: “Flashing not completed,” or
“Dump mode”. This source generates errors of type F and G.
Error Action Output Information
The error code may be printed in the upper left corner of the
label, “ERR01” for example. The control LED changes to orange
or red.
Serial Port (RS-232 or USB)
• Output on the serial line when an error occurs is dependent
on the setup commands.
• The commands UN and US turn off or on most of the error
output information.