The ESC/POS printer drivers were TCP-only — every path went through
sendRaw/probe to a raw socket on port 9100. Add a USB transport behind
the existing render layer without touching a single render*() function.
- printer-escpos.ts: sendRawUsb/probeUsb write the same ESC/POS bytes to a
kernel usblp char device (/dev/usb/lp0) via a plain fs write — no
libusb/CUPS/native dep (keeps MIT-only + minimal-deps appliance). A
discriminated Transport + transportFromConfig/sendTo/probeTo dispatch the
wire; anything not transport:"usb" is TCP, so existing host-only configs
need no migration. Shared transportField/devicePathField config fields.
- cashino + rongta resolve a Transport once; both are reachability-only over
USB, and the Rongta's HTTP status page degrades to the open-the-node probe
over USB (no guessed paper/cover — the standing honesty rule). host/port
made not-required so a USB printer needs neither.
- Tests: printer-escpos.test.ts (USB writes the exact rendered bytes; probe
present/absent; transportFromConfig TCP back-compat) + printer-cashino.test.ts
(USB-configured driver prints to the node, ready/offline).
USB itself is unverified on hardware (the on-site printers are networked);
the appliance-side usblp + udev provisioning is tracked as open-questions #14.
Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V
The advisory out-of-window slip for a subscriber had two problems:
1. Faulty character codes. It rendered via the generic text printReport,
which has no CP852 mapping for the em dash, ellipsis, or warning sign in
the composed strings — so they printed as "?" ("PARKIM ? JASHTE ORARIT").
Added ASCII transliterations for that typographic punctuation in the
ESC/POS encoder (— → -, ⚠ → !, … → ..., curly quotes/bullet), so they
degrade to a readable glyph instead of "?".
2. Not scannable. The slip printed only "Nr: SUBSESS-…" as plain text, so
the operator had to hand-key it. Gave the notice its own render function
(renderWindowChargeNotice) + a printWindowChargeNotice device method that
prints the occurrence id as a Code128 AND a QR — the same scan path as a
transient ticket, so the operator scans it straight into the booth pay
modal, which then quotes the combined window charge. Implemented on both
the rongta and cashino drivers.
Also fixed the booth pay modal: "Open barrier" no longer shows by default
for a subscriber. A prepaid subscriber with nothing owed sees only a small
"assist open" reveal (the audited manual open for a faulty reader / lost
card stays available, just not the default). A subscriber owing an
out-of-window charge is now two steps — take payment first, then "Open
barrier" appears — instead of an always-on open button.
Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V
After a completed payment the customer always gets a transparency record:
entry time, payment time, duration parked, amount + tender. One shared
ESC/POS renderer (renderReceipt + ReceiptData in @parking/devices), two
modes: VOUCHER = those figures PLUS the scannable Code128 barcode and an
emphasised walk-back-grace line, so the one slip both proves payment and
self-exits at a distant exit reader (replaced the old barcode-only voucher);
STANDALONE = detail-only, auto-printed at payment when no voucher is issued.
Figures fold from the SIGNED ledger (latest payment event); printed on the
booth printer (failover to dispenser). Best-effort: a printer fault never
blocks the exit that already happened — the modal shows a note and offers
"Reprint receipt".
Server: booth-print.ts printPaymentReceipt() + receiptFigures(); routes
POST /api/voucher (voucher) + new POST /api/receipt (standalone/reprint).
Both ESC/POS drivers gained printReceipt(). Web: BoothPayModal auto-prints
after a non-voucher payment + reprint button; api.ts printReceipt().
CP852 fixes found on a real printout: (1) uppercase Ë was mapped to 0xEB
(that's ű) — correct byte is 0xD3; (2) Intl.NumberFormat injects a NO-BREAK
SPACE (U+00A0/U+202F) that isn't in CP852 and printed as "?" — line() now
normalises it to a plain space ("1000 Lekë"); (3) grace line wrapped
mid-word — split into two short lines.
Full build green; both receipt modes render-verified; routes live.
Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V
The Cashino 80mm printer reported wrong status: it ran on the `rongta`
driver, whose readStatus() scrapes the Rongta board's /prn_stat.htm status
page — which the Cashino does not serve — yielding a bogus degraded/page-
error verdict while the printer was online and printing fine. Root cause:
the Cashino is an ESC/POS PRINT clone with no trustworthy STATUS mechanism.
Fix: extract the shared ESC/POS rendering + transport (renderTicket/
renderReport/renderSubscriptionCard/sendRaw/probe + CP852 map + code128/
qrCode) from printer-rongta into drivers/printer-escpos.ts, and add a
dedicated `cashino` driver that reuses that print path but is deliberately
NOT MonitorableDevice (no readStatus). isMonitorable() is then false, so the
device monitor falls back to healthCheck() — a plain TCP reachability ping:
reachable -> ready, unreachable -> offline, never a guessed paper/cover
state it cannot sense. Rongta driver unchanged (still scrapes its page,
still monitorable). Register + re-export cashinoDriver.
Verified at runtime (cashino registered, isMonitorable=false, no readStatus,
healthCheck->offline on unreachable) and live: /api/devices/status shows both
printers ready (lane via ping, booth via page). The live entry-dispenser at
10.0.10.9 was switched rongta->cashino in the operator DB (backed up).
Also fix the Albanian device-role chip wording, which read wrong as a
"{category} {role}" label: access mixed "i përzier" -> "hyrje/dalje"
(it means a barrier spanning both directions); printer lane "korsia" ->
"në korsi"; booth "kabina" -> "në kabinë". English tidied to match
(mixed->entry/exit, lane->at lane, booth->at booth).
Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V
julian