Enum Error 

pub enum Error {
    UsbError(Error),
    DeviceOffline,
    DeviceListNotReadable,
    MissingEndpoint,
    InvalidResponse(usize),
    InvalidConfig(String),
    NoMediaInstalled,
    MediaMismatch {
        expected: Media,
        actual: Media,
    },
    ReadStatusTimeout,
    PrintTimeout,
    UnexpectedPhase(Phase),
    PrinterError(PrinterError),
}

Main error type for P-Touch printer operations.

This enum encompasses all possible errors that can occur when using the printer, from USB communication issues to printer-specific errors.

Variants

UsbError(Error)

USB communication error.

Wraps underlying rusb errors for device communication issues, timeouts, or permission problems.

DeviceOffline

Printer device is not connected or not responding.

This error occurs when the printer cannot be found on USB or fails to respond to initialization commands.

DeviceListNotReadable

MissingEndpoint

InvalidResponse(usize)

InvalidConfig(String)

Invalid configuration parameter provided.

This error occurs when configuration values are out of range or incompatible with the selected printer model.

NoMediaInstalled

MediaMismatch

Media type mismatch between configuration and installed tape.

The printer has different media installed than what was specified in the configuration. Check the installed tape and update config.

Fields

expected: Media

actual: Media

ReadStatusTimeout

PrintTimeout

Print job timed out waiting for completion.

The printer did not complete the print job within the expected time. This may indicate a hardware issue or very long label.

UnexpectedPhase(Phase)

PrinterError(PrinterError)

Hardware-level printer error.

Wraps printer-specific errors reported by the device itself, such as cover open, media issues, or mechanical problems.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.