PrintDoctor: Receipt Printer

About

The field toolbox for ESC/POS thermal receipt printers. Find, test, and fix any network receipt printer from your phone - no laptop, no vendor utility, no guesswork. Built for POS technicians, systems integrators, and shop owners who just want the receipt printer to work. FIND YOUR PRINTER - Scan your WiFi network and find every printer listening on port 9100 in seconds - Save printer profiles (name, IP, paper width) for one-tap access - Works with any ESC/POS printer with a LAN or WiFi interface - Epson, Star, Xprinter, GOOJPRT, Rongta, MUNBYN, and the generic ones TEST IT - One-tap test pages: status page, font & style matrix, barcode + QR sample, 58/80mm ruler - See exactly what your printer can do before you wire it into a POS FIX GARBLED RECEIPTS (the killer feature) - Chinese, accents, or symbols printing as garbage? The Codepage Matrix prints the same sample line under every common ESC/POS codepage - including Big5, GB18030, and UTF-8 modes - each one labelled - Find the row that prints correctly, set that codepage in your POS software, done CASH DRAWER - Fire the drawer kick on pin 2 or pin 5 with selectable pulse widths - Built-in wiring explainer (RJ11/RJ12) for drawer installs PRINT LOGOS - Pick any image, preview it in true 1-bit with three dithering algorithms (Floyd-Steinberg, Bayer, threshold), and print it as a raster logo TRY EVERYTHING WITHOUT A PRINTER - The built-in Virtual Demo Printer renders every print job as an on-screen receipt - test the whole app before you're even on site HONEST BY DESIGN - One-time purchase. No subscription, no watermarks, no print limits, no ads, no account - Fully offline: the app talks only to printers on YOUR network, nothing else - iPhone can't speak classic-Bluetooth SPP, so PrintDoctor doesn't pretend to - network printing done right, with a clear in-app explanation Support: https://lampstandtech.com/printdoctor/support Privacy: https://lampstandtech.com/printdoctor/privacy