Appendix D
Error Codes
The most common transmitted error codes are:
Lowercase “c”
The printer received a data byte from the host computer that contained a framing error (corrupted data - usually due to noise).
Uppercase “I”
An invalid command sequence was sent to the printer. The printer did not understand the command sequence and terminated the command interpreter.
Uppercase “R”
This code is sent every time the printer is turned ‘On’, signaling a hardware reset.
Uppercase “T”
This code signals a software reset. A software reset is made by sending the command sequence to the printer or by performing a reset using the front panel buttons.
Lowercase “v”
There is an input buffer overflow situation, caused when an overflow of data is sent to the printer.
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