What PrintBench can tell you

PrintBench checks the sheet you print, measure and scan on your own equipment. It does not certify a printer, driver, viewer or scanner.

What PrintBench covers

• 100 × 150 mm and 4 × 6 inch stock; 203- and 300-DPI-generated test PDFs.
• One-page raster PDFs with exact media dimensions and fixed Code 128 / QR payloads.
• User-entered measurements, visual observations and exact comparisons of keyboard-scanner input and camera reads.
• No account or server-side processing. PrintBench itself makes no printer connection.
• Optional Send to SmartFACT PrintStation: opens PrintStation in a new tab for the selected sheet, carrying only the sheet name. Printer discovery and printing happen in PrintStation, not in PrintBench.

Software evidence and limits

The repository tests exact PDF dimensions, source pixels, dot placement, quiet zones and repeated generation. An independent PDF renderer and barcode decoder recover both values from the rendered symbol regions. Whole-page automatic discovery misses Code 128 on the 4 × 6 / 203 render in the tested decoder, although the symbol region decodes. These checks do not establish physical print quality or a barcode verification grade.

Automated desktop tests target Chromium, Firefox and WebKit. These are browser-engine checks, not certification of installed browsers, mobile devices or printer drivers. Your PDF viewer may scale a page unless actual size is selected.

Keyboard scanners

USB, Bluetooth and wireless receivers can work when they present as a normal keyboard. The app listens only in an explicitly armed field. It cannot identify the device, distinguish typing from scanning or read raw hardware reports. Browser keyboard handling, IME, scanner configuration and the OS may alter input before the app sees it. PrintBench does not certify a scanner or input method, so check yours with the test sheet.

The camera

On a device with a camera, the camera button beside the scanner field reads Code 128, QR, Data Matrix, EAN and UPC codes: the browser's own barcode reader where it has one (Chrome on Android), otherwise a decoder loaded from this site (Safari, Firefox). Automated tests read a picture of the printed sheet through a simulated camera in Chromium and WebKit. PrintBench does not certify cameras, phones or lighting, and a camera read is not a scan by your keyboard scanner.

Outside PrintBench

Custom label sizes, high-density grades, printer discovery, ZPL, USB/HID/serial access, print queues and background printing are not included in PrintBench. Use a normal PDF viewer and printer driver, or SmartFACT PrintStation to print the sheet directly.