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marklife-tspl — TSPL II with a zlib BITMAP ​

A TSC TSPL II job — CLS, SIZE, GAP, DENSITY, SPEED, BITMAP, PRINT — with one departure from the specification: the BITMAP command uses mode 3 and carries a zlib-deflated raster where the TSPL II manual defines mode 3 as LZO. The spec-aligned directives come from @thermal-label/tspl-core; this page documents only the departures.

No chassis bound

No registry entry binds to marklife-tspl. The T3 did until our own analysis showed it speaks CPCL; the P15, P15R, A1 and LP15 did until the same analysis showed they speak L11. The encoder is retained because a TSPL job shape exists for the family and a chassis may yet route here, but nothing on this page has been driven against hardware and every byte is inference.

Job byte stream ​

CLS\r\n
SIZE <w> mm,<h> mm\r\n
GAP 2 mm,0 mm\r\n                       (die-cut only)
SET GAP ON\r\n                          (die-cut only)
DENSITY <d>\r\n
SPEED 4\r\n
BITMAP 0,0,<wBytes>,<h>,3,<len>,<zlib payload>\r\n
PRINT <copies>\r\n

Continuous stock sends neither GAP nor SET GAP; the firmware feeds the length SIZE declares.

Departures from TSPL II ​

BITMAP mode 3 is zlib, not LZO. The payload is LabelBitmap.data — ceil(width / 8) bytes per row, 1 = dark — deflated with stock zlib (level 6, 32 KiB window) by tsplZlibCompress. This is not the 1 KiB window the YXQ raster needs; the two compressors are kept apart on purpose. A sixth field, the compressed length, precedes the payload.

Bit polarity is 1 = dark, inverted from the TSPL II specification's 0 = dark, and the same choice tspl-core makes.

SET GAP ON|OFF is a TSPL II directive not yet in tspl-core; buildSetGap in marklife-core/src/tspl/protocol.ts hosts it until the upstream builder lands.

Density ​

'light' | 'normal' | 'dark' map to DENSITY 5 | 8 | 12; densityLevel is sent through unchanged.