julian
bba988c4e8
Builds out subscription credentials on top of the rename.
- Operator chooses the credential type; only QR is live (RFID shown disabled
"soon"). Backend/schema keep accepting both — re-enabling RFID is UI-only.
- QR codes are AUTO-GENERATED server-side (SUB-<base32>, crypto-random,
globally-unique-checked) — the customer/operator never picks the value.
RF stays operator-entered (the physical card id). Reader output decided =
TCP/IP full string (Wiegand-numeric fallback noted).
- Multi-month: form takes a `months` count → server sets validTo =
validFrom + N months (day-clamp); one record/one window; total = N×monthly.
- The QR card is PRINTED so the operator can hand it over: real ESC/POS 2D QR
(GS ( k) added to the Rongta driver (printSubscriptionCard); auto-print on
create (best-effort — never fails the create; returns {printed,printError})
+ reprint via POST /api/subscriptions/:id/print and a "Print code" button.
Verified via buildServer+inject incl. a TCP capture of the on-wire QR bytes
(autogen+uniqueness, Jan31+3mo→Apr30, auto-print, GS ( k QR with embedded
code, reprint, no-QR→409). Updated wiki (subscription, rongta-printer). No
migration.
Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V
56 lines
2.9 KiB
Markdown
56 lines
2.9 KiB
Markdown
---
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type: entity
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tags: [parking, hardware, printer, device]
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sources: []
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updated: 2026-06-14
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---
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# Rongta 80mm thermal printer
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The chosen ticket/receipt printer: a **Rongta RP-series 80mm network thermal printer** (and the
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many ESC/POS-compatible OEM clones that share its firmware). Driver `rongta` in
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`packages/devices` implements [[device-adapter-pattern|PrinterDevice]].
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## Transport & protocol
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- **ESC/POS over a raw TCP socket on port 9100** (the JetDirect/RAW convention). The driver
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opens the socket, writes the ESC/POS byte stream, waits for flush, closes.
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- **No authentication** on the print socket — anyone who can reach port 9100 can print. Like
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every other field device it must sit on the **isolated device VLAN** ([[network-isolation]]).
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There is no real HTTP/control boundary on the device (same posture as [[dingtian-relay]]).
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- **Health check** is a TCP connect probe to 9100. The print socket exposes no status protocol
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we rely on; the print itself is the real reachability test (failover attempts the print).
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- **Live status** comes from the device's own web page `http://<host>/prn_stat.htm` (port 80),
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which decodes Cover Open / Cutter Error / Paper End / Paper Near End / Off-Line into Yes/No.
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We scrape that rather than hand-decode `DLE EOT` — this clone's DLE EOT reply bytes do **not**
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match the canonical ESC/POS bit layout (verified on hardware), so trusting the device's own
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decode avoids a false-healthy. Implemented as `readStatus()`; see [[printer-status-monitoring]].
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## Deployment (this site)
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- First printer verified reachable at **10.0.10.6:9100** from the host (TCP connect OK,
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2026-06-14).
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- **At least two printers**, by role — see [[printer-roles-failover]]:
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- **entry-dispenser** — outside, at the lane; the driver takes the entry ticket.
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- **booth-receipt** — inside the booth; receipts, AND the backup that prints the entry
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ticket if the outside dispenser is offline.
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## Ticket rendering
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`printTicket(TicketData)` builds ESC/POS: `ESC @` init, centered/bold/double-size header,
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lane, ticket id, issued-at, feed + partial cut (`GS V B`). CP437/ASCII subset. The entry ticket
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encodes the id as a **1D Code128** barcode (`GS k`).
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**`printSubscriptionCard(SubscriptionCardData)`** (added 2026-06-18) renders a **2D QR** of the
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[[subscription]] code via ESC/POS **`GS ( k`** (model 2, EC level M) — firmware-rendered, no bitmap
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dependency — plus the code as text + holder/validity. Used for the auto-printed + reprintable
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subscription card. (Verified: the `GS ( k` store/print byte sequences + the embedded code appear on
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the wire against a TCP capture.)
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## Status
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Driver written and compiles; entry-ticket layout is a first pass; live status monitoring is
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implemented and verified ([[printer-status-monitoring]]). The receipt/exit layout and the
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cash-drawer kick (ESC/POS `ESC p`) are **not yet implemented** — they arrive with the
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exit/payment flow. Replaces the generic "Epson TM / Citizen" booth-printer line in [[bom]].
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