toString method
A string representation of this object.
Some classes have a default textual representation,
often paired with a static parse function (like int.parse).
These classes will provide the textual representation as
their string representation.
Other classes have no meaningful textual representation
that a program will care about.
Such classes will typically override toString to provide
useful information when inspecting the object,
mainly for debugging or logging.
Implementation
@override
String toString() {
if(isReadyToPrint) return "Ready";
if(isPaperOut) return "PaperOut";
if(isReceiveBufferFull) return "Full";
if(isRibbonOut) return "RibbonOut";
if(isHeadTooHot) return "Hot";
if(isHeadCold) return "Cold";
if(isHeadOpen) return "Open";
if(isReadyToPrint) return "Ready";
return "Unknown";
}