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Scanner diagnostics

Test what the browser can see. Know when it cannot.

Use camera/file/browser checks around the workflow, then rely on OS and manufacturer diagnostics for the scanner transport and imaging hardware.

Run these first

Relevant live checks

Device & Browser Information CheckSee browser-exposed screen, viewport, language, CPU-thread class, memory class, connection hints, and platform information without installing software.
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Browser Permission CheckCheck whether common browser permissions such as camera, microphone, location, and notifications are granted, denied, or still waiting for a decision.
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First diagnostic sequence

Do the high-signal checks before risky changes

  1. 1

    Confirm the scanner appears in the operating system

  2. 2

    Test the manufacturer's scan utility

  3. 3

    Separate scan-hardware failure from browser upload/viewer issues

What DeviceOK/browser can help check
  • Check whether web scanning apps have browser permissions
  • Help diagnose file/upload/browser issues around scanning
What this browser page cannot prove
  • Drive generic scanner hardware directly across browsers
  • Test scanner lamps, motors or ADF sensors