Serial lasterrorcode returns "83" - what does it mean?

Hi there. I have a problem connecting to a serial port of a fiscal printer. I bought the usb/serial adapter and installed the driver on my Mac, then I can see the usb serial on the serial port list, but when I open the connection the error event of my serial, returns “83”. I can’t find anything helpful on the web.
I add a strange thing: if I unplug the port from the printer, I have no error!!!

Thanks for your suggestions

from errno.h:

/* Intelligent device errors /
#define EPWROFF 82 /
Device power is off /
#define EDEVERR 83 /
Device error, e.g. paper out */

So I have a problem on the port (the paper i present and work from its keyboard).

[quote=298493:@Christian Schmitz]from errno.h:

/* Intelligent device errors /
#define EPWROFF 82 /
Device power is off /
#define EDEVERR 83 /
Device error, e.g. paper out */[/quote]
Please, for the future: where can I find this errno.h?

if you install Xcode on a Mac, you find it inside the bundle in the Mac SDK.

For OS X error codes, I find osstatus.com to be wonderful for this sort of thing. Here’s what it shows for 83.