Case study

Toshiba e-STUDIO2323AM: reconstructing a PJL/JBIG print stream for CUPS

Toshiba e-STUDIO2323AM/2823AM CUPS driver reconstructs the printers' PJL and JBIG-1 print stream from captured Windows GDI driver output. A CUPS raster filter and PPD generate jobs for a socket print queue, while protocol notes describe job envelopes, page blocks, paper options, and copy behavior. The author reports byte-level capture comparisons and printing on an e-STUDIO2323AM.

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: 0
Last commit: 2026-10-30
Language: Shell
License (GitHub): GPL-2.0

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: A macOS CUPS environment and an e-STUDIO2323AM or 2823AM printer for the documented driver route.
Limits: The printers have no automatic duplex unit; the filter always sends single-sided jobs.
Testing evidence: The author reports capture replay and printer tests; some management UI actions have only stub-based tests.
License: GPL-2.0-or-later License.

Cite

BibTeX

@misc{toshiba-estudio2323am-cups-driver-case,
  title = {{Toshiba e-STUDIO2323AM: reconstructing a PJL/JBIG print stream for CUPS}},
  howpublished = {\url{https://github.com/Tuteng-1/e-studio2323am-cups-driver}},
  url = {https://github.com/Tuteng-1/e-studio2323am-cups-driver},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/toshiba-estudio2323am-cups-driver-case/}}
}

Plain text

Toshiba e-STUDIO2323AM: reconstructing a PJL/JBIG print stream for CUPS. https://github.com/Tuteng-1/e-studio2323am-cups-driver (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/toshiba-estudio2323am-cups-driver-case/

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About this entry

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Primary sources

README.md GitHub · Tuteng-1/e-studio2323am-cups-driver · Revision 163cead
docs/protocol-notes.md GitHub · Tuteng-1/e-studio2323am-cups-driver · Revision 163cead
eSTUDIO2323AM-captures/FINDINGS.md GitHub · Tuteng-1/e-studio2323am-cups-driver · Revision 163cead