~HD - Return Head Diagnostic

Status, Query & DiagnosticsUnsupported

Authored by RFID.me Last updated Editorial policy

Plain English

Returns printhead diagnostic data including element resistance values. Used to detect failing dots on the printhead before they cause print quality issues.

When to use

For preventive maintenance — detecting printhead wear before it affects print quality.

Syntax

~HD

Example

~HD

Run printhead diagnostic and return element resistance data

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