Case study

Brother HL-4150CDN: reconstructing the XL2HB print stream

The Brother HL-4150CDN driver reconstructs the proprietary XL2HB print stream produced by Brother's 32-bit x86 filter. Its Python and optional Cython implementation handles raster encoding, color processing, PJL job settings and CUPS integration, with comparison fixtures for byte-level output matching.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 3
Last commit: 2026-11-03
Language: Python
License (GitHub): GPL-3.0

GitHub data as of 2026-11-10

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Evidence

Observed: Code and documentation observed; no download method or demo found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: Linux with CUPS and Ghostscript, plus Python 3.13 or newer as system python3.
Prerequisites: Brother's HL-4150CDN LPR package is needed to extract calibration tables locally.
Testing evidence: The author reports eight further models using the same filter, but they remain untested on hardware.
License: GPL-3.0-or-later license.

Cite

BibTeX

@misc{brother-hl4150cdn-driver-case,
  title = {{Brother HL-4150CDN: reconstructing the XL2HB print stream}},
  howpublished = {\url{https://github.com/cl445/brother-hl4150cdn-driver}},
  url = {https://github.com/cl445/brother-hl4150cdn-driver},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/brother-hl4150cdn-driver-case/}}
}

Plain text

Brother HL-4150CDN: reconstructing the XL2HB print stream. https://github.com/cl445/brother-hl4150cdn-driver (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/brother-hl4150cdn-driver-case/

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About this entry

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Primary sources

README.md GitHub · cl445/brother-hl4150cdn-driver · Revision 296ca54
docs/other-printers.md GitHub · cl445/brother-hl4150cdn-driver · Revision 296ca54
LICENSE GitHub · cl445/brother-hl4150cdn-driver · Revision 296ca54