brother-ql

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brother-ql / core/src / RasterProtocolConfig

Interface: RasterProtocolConfig

Per-protocol wire-format constants.

QL and PT raster differ in three numeric constants and one rule — everything else (status request, raster opcode, PackBits, two-colour plane encoding) is shared and lives in encodeRasterJob. Per the plan §4.2 / §7, these are protocol-internal and do not leak onto the device registry.

• feedMarginDots — leading/trailing blank tape (ESC i d). QL = 35, PT = 14. Per brother_label/devices.py and Brother's PT raster manual; verify against print output during phase 4.
• invalidateBytes — leading invalidate sequence. QL is 200 by default but the encoder bumps it to 400 when the engine carries capabilities.twoColor. PT is always 200 (no two-colour PT model exists today).
• highResFlagBit — bit set in ESC i K flags when highRes is requested. QL uses bit 4 (0x10) for 300x600; PT uses bit 6 (0x40) for 180x360 / 360x720 (per nbuchwitz/ptouch).
• duplicateRasterLines — when highRes is on, PT requires each raster line to be sent twice. QL's high-res mode does not.

Properties

duplicateRasterLines

duplicateRasterLines: boolean

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feedMarginDots

feedMarginDots: number

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highResFlagBit

highResFlagBit: number

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invalidateBytes

invalidateBytes: number