ZplTwinDiagnosticCodes
public static class ZplTwinDiagnosticCodesStable codes of printer twin diagnostics (ZPL5xxx, see DIAGNOSTICS.md and docs-internal/printer-twin.md).
Fields & Constants
| Field | Type | Description |
|---|---|---|
const ClockMissing = "ZPL5205" | string | Real-time clock commands (^FC, ^KD, ^SL, ^SO, ^ST) on a model without (or with unknown) real-time clock. |
const DarknessOutOfRange = "ZPL5502" | string | ~SD or ^MD darkness outside the documented range. |
const DpiHint = "ZPL5105" | string | Heuristic: ^PW/^LL are whole label sizes at another resolution, not at this printer's. |
const DpiMismatch = "ZPL5104" | string | The label was designed for another resolution (ZplTwinOptions.DesignDpi): it prints scaled. |
const EncodingUnsupported = "ZPL5303" | string | Unicode or TrueType use on a model whose profile says it is not supported (or unknown). |
const FieldClipped = "ZPL5102" | string | A field lies partly or completely outside the printhead width and is clipped. |
const FirmwareTooOld = "ZPL5201" | string | The command or parameter needs a newer firmware feature level than the profile's firmware. |
const FontFileNotResident = "ZPL5302" | string | ^A@ / ^CW / ^FL refers to a font file that is neither downloaded in the job nor known to be resident. |
const FontNotResident = "ZPL5301" | string | The font is not in the profile's resident font list (or the list is not exhaustive / unknown). |
const GlyphCoverage = "ZPL5304" | string | Text with characters outside the code page of a bitmap font, or whose glyph coverage in font 0 is not documented. |
const LanguageUnsupported = "ZPL5203" | string | The profile lists printer languages without ZPL. |
const LengthExceedsMaximum = "ZPL5103" | string | ^LL or the content is longer than the maximum print length. |
const MemoryBudget = "ZPL5402" | string | Memory budget summary per drive (downloads in the job). |
const MemoryOverflow = "ZPL5401" | string | Downloaded graphics, fonts and formats exceed the user memory of a drive. |
const OptionMissing = "ZPL5202" | string | The command needs a hardware option (peeler, rewinder, applicator, RFID, linerless) that is not installed or not available. |
const PrepeelIgnored = "ZPL5206" | string | ^MM prepeel parameter on a Link-OS printer ("not supported by Link-OS printers"). |
const PrintMethodUnsupported = "ZPL5204" | string | ^MTT (thermal transfer) on a direct-thermal-only model. |
const SpeedOutOfRange = "ZPL5501" | string | ^PR speed above the model's maximum (the printer runs at its maximum) or below its minimum. |
const UnknownFact = "ZPL5001" | string | A profile fact needed by a check is unknown; the check was skipped or is only a hint. |
const WidthExceedsPrinthead = "ZPL5101" | string | ^PW is wider than the printhead; the printer uses the printhead width. |

