Enum PrinterError 

pub enum PrinterError {
    NoMedia,
    EndOfMedia,
    CutterJam,
    PrinterInUse,
    PrinterOffline,
    InvalidMedia,
    BufferFull,
    CommunicationError,
    CoverOpen,
    FeedMediaFail,
    SystemError,
    UnknownError((u8, u8)),
}

Hardware-specific errors reported by the printer.

These errors are parsed from the printer’s status response and indicate physical problems with the device that need user intervention.

Variants

NoMedia

EndOfMedia

CutterJam

PrinterInUse

PrinterOffline

InvalidMedia

BufferFull

CommunicationError

CoverOpen

FeedMediaFail

SystemError

UnknownError((u8, u8))

Implementations

impl PrinterError

pub fn from_buf(buf: [u8; 32]) -> Self

Parse printer error from 32-byte status buffer.

Analyzes bytes 8 and 9 of the printer status response to determine the specific error condition reported by the hardware.

Arguments

• buf - 32-byte status response from printer

Returns

Parsed printer error or UnknownError((0, 0)) if no error

pub fn is_no_error(&self) -> bool

Check if this represents a “no error” state.

Returns true if the printer is reporting no error condition. Used to distinguish between actual errors and normal status.

Returns

true if no error is present, false otherwise

Trait Implementations

impl Debug for PrinterError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for PrinterError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for PrinterError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.