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Canon Support Code 1200: Scanning unit or cover is open

✅ Usually fixable yourself

The printer detected that the scanning unit or cover is open.

What to try

  1. Close the scanning unit / cover.
  2. Wait a moment for the printer to recognize it.
  3. On ink tank models, do not close it while you are still refilling an ink tank.

When it needs a technician

Rarely. Canon lists no repair step for this code. If it keeps coming back after the steps above, contact Canon support.

Which models show 1200

Canon documents this code for models including PIXMA G6000 series, PIXMA TS3100 series, PIXMA TS3300 series, PIXMA TS3400 series, PIXMA TS5100 series, PIXMA TS6300 series, PIXMA TS7400 series, PIXMA TS8300 series.

First steps for any printer error

  1. Write down the exact code before you do anything else — similar-looking codes often mean completely different things.
  2. Power the printer off, unplug it for a couple of minutes, then power it back on. A surprising number of transient errors clear here.
  3. Open the covers and check for paper scraps, packaging material, or anything blocking the carriage.
  4. Check the cartridges or tanks are genuine, correctly seated, and not empty.
  5. Confirm the printer is plugged directly into a wall outlet, not a power strip or extension lead.
  6. Check your model’s own manual — codes are model-specific, and the manual is the authority for your machine.

Source: Canon Inkjet Manual - PIXMA G6000 series, support code 1200. Codes are model-specific, so your own model's manual is the final word. Reviewed October 2026.

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Related Canon codes

5100 — Print head / cartridge holder cannot moveB203 — Error that needs a Canon repairB204 — Error that needs a Canon repair6000 — Printer error (check for a paper jam first)1300 — Paper jam (rear tray / output slot)1003 — Out of paper / paper not loaded (front tray or cassette)2110 — Paper settings do not match the cassette2114 — Paper settings do not match the rear tray4103 — Cannot print with current print settings2900 — Print head alignment sheet could not be scanned2700 — Copy or scan timed out after an error3402 — Copy memory is full

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