Product and compatibility
What does POS Printer Emulator do?
It listens for POS receipt print jobs on Windows, renders a live receipt preview, and exposes parsed ESC/POS commands, raw bytes, warnings, and job details for testing and troubleshooting.
Do I need a physical receipt printer?
No. The emulator is specifically designed to let you test receipt output without purchasing or connecting printer hardware.
Which versions of Windows are supported?
The supported environment is a fully updated 64-bit Windows 11 Pro machine. Windows 10 and other Windows editions are unsupported.
Does it work with Epson receipt printers?
It supports common Epson-compatible ESC/POS workflows and includes guided setup for a TM-T88V-style Windows queue. Model-specific commands can vary, so complete final production validation with the exact hardware.
Does it support every ESC/POS command?
No emulator can assume every vendor extension. The Commands view identifies recognized instructions and flags unsupported data so you know what requires further testing.
Connection and setup
Which network port does it use?
The listener uses TCP port 9100, commonly called RAW printing or the JetDirect-style network-printer port.
Can my POS run on another computer?
Yes. Point the POS to the emulator computer’s local IPv4 address and port 9100. Both devices must be on a trusted network and the Windows firewall must allow the listener.
Can I create a Windows printer queue?
Yes. Use the application’s Printer Setup Wizard or follow the manual Standard TCP/IP port guide. Configure RAW protocol on port 9100.
Why did I receive a blank receipt?
The POS may have sent only initialization or control bytes. Select the job and inspect Raw data and Commands to see exactly what arrived.
Privacy and offline use
Is receipt data stored in the cloud?
No. Receipt contents, raw bytes, and eligible paid-license job history stay on the local Windows device. The service may receive privacy-safe registration, licensing, maintenance-entitlement, and aggregate usage events, but not receipt contents.
Can receipt testing work without internet access?
Core capture, rendering, diagnostics, and local history work locally. Registration, purchase, renewal, update, or account actions may require an internet connection.
Trial, licensing, and maintenance
Release status: v0.3.55 is the current public release and includes Annual Application Maintenance and Support for permanent paid licenses.
What are the Trial Version limits?
Trial Mode accepts up to five external POS print jobs per day and allows unlimited built-in Test Receipts. It keeps no historical jobs beyond the session, adds a TRIAL watermark, and locks paid features.
What is the five-day promotional trial?
It is a separate, one-time evaluation for an eligible verified customer and computer. It unlocks Lite, Pro, and Enterprise capabilities for five consecutive days, shows a live countdown, and returns to the previous license when it expires. Reinstalling does not create another promotional trial.
What do Lite, Pro, and Enterprise include?
Every paid level permanently includes unlimited print jobs, full local job history, no watermark, exports, printer profiles, Stored Logos, Printer State, capture/import/replay, and Copy Receipt as Image. Lite allows one total listener, Pro allows two, and Enterprise allows up to 15 plus the Standard Development Diagnostics Report and Advanced Diagnostics Package.
How much do the paid levels cost?
Lite is available at a one-time price of $24.99. Current Pro and Enterprise prices are controlled by the purchase service and shown before purchase. Optional one-year Maintenance and Support renewals are Lite $9.99, Pro $19.99, and Enterprise $59.99.
Is this a software subscription?
No. Lite, Pro, and Enterprise are permanent one-time-purchase licenses. Each new paid purchase includes one year of updates, upgrades, account and device licensing assistance, assisted support, and Check for Updates access. Maintenance renewals are optional one-time payments with no automatic recurring billing.
What happens when maintenance expires?
The purchased application, installed version, existing licensed features, history, and listener allowance continue working permanently. Update checks, update downloads, assisted support, and account or device recovery assistance pause until renewal. Local troubleshooting information, activation diagnostics, health checks, and privacy-safe log export remain available.
How quickly will support respond?
Unless a separately signed SLA states otherwise, an active-maintenance request may take up to six calendar months for an initial substantive response. A response may acknowledge the request, request information, provide status or guidance, or identify an unsupported matter; it does not promise diagnosis, correction, workaround, or resolution.
How does maintenance renewal work?
An early renewal adds 12 months to the current expiration date. If coverage has expired, the renewed year starts on the confirmed payment date and restores eligible update, account and device licensing assistance, and assisted-support access immediately.
How do I activate a paid level?
Purchase through the Customer Portal, open Settings → License in the installed app, and select Link This Computer. Sign in to your verified account, review the computer, choose an eligible license, and approve it. The app activates automatically. A paid license may be active on one computer at a time; deactivate the prior computer in the Customer Portal before moving it. Backup the replacement computer must be linked through the verified account.
Can I uninstall everything later?
Yes. The Windows uninstaller removes the desktop application, background service, firewall rule, shortcuts, and related application components.