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3412

Canon Printer Code 3412: Scanning Original on Platen Failed

Verified with sources4 sourcesReviewed Oct 18, 2026
Technician coming? See the 2 steps they must show you
Inkjet multifunction printer
Dinkun ChenCC BY-SA 4.0Image source

Risk level

Low

Usually safe to check without specialist tools.

Urgency

Low

Quick answer

Support code 3412 on Canon MAXIFY GX7000 series printers means scanning the original on the platen glass failed. Tap OK on the touch screen, verify the document or photo position and orientation on the glass, and specify a fixed scan size if Auto scan still fails.

Safety first

Stop and check this first

  • An original smaller than 3 cm (1.2 in.) square or cut into a non-rectangular shape may not be scanned properly in automatic detection modes.
  • The printer cannot scan the 1 mm (0.04 in.) striped area along the outer edges of the platen glass.

Safe checks you can perform

  • Tap OK and confirm the original is face down on the platen
  • Position the original for your function (mark or 1 cm gap)
  • Specify a standard scan size instead of Auto scan

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Use fixed size settings for clippings under 3 cm square
  • Do not attempt this professional task: Canon service inspection if fixed-size platen scans also fail

What a technician must be able to justify

Technician visit

These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.

These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.

  1. Use fixed size settings for clippings under 3 cm square

    What they doWhen digitizing clippings smaller than 3 cm (1.2 in.) square or cut-out irregular photos, always specify the scan size manually or crop from a preview in Scan Utility.

    They must show youthe scanned image captured using a fixed scan size setting.

    In writingthe scan preset saved for small or irregular originals.

  2. Canon service inspection if fixed-size platen scans also fail

    What they doIf support code 3412 continues to appear even when a standard A4 or Letter sheet is aligned with the corner mark and a fixed Scan size is selected, arrange a check with Canon service.

    They must show youa completed test scan from the platen glass without support code 3412.

    In writingthe scanner unit component repaired or replaced and the Canon case number.

Before accepting a part or repair

Nothing has been shown yet. Do not accept a part swap based on the code alone.

Follow these steps

Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.

  1. Tap OK and confirm the original is face down on the platen

    No special tools

    Who:
    you, at the touch screen and lifting the document cover.
    How:
    select OK on the printer touch screen to clear support code 3412, lift the document cover, and make sure the original is placed on the platen glass with the side to be scanned facing down.
    Result that matters:
    confirming the original is present on the platen glass and facing the scanner sensor.
    If the glass was empty or the sheet was face up:
    place it face down on the platen and try again.
    If the original was already face down:
    check its placement for your chosen scan mode.
    Evidence to keep:
    the type and dimensions of the original placed on the platen.

    Evidence: Canon MAXIFY GX7000 series support code 3412 · Loading Based on Use (Canon MAXIFY GX7000 series)

  2. Position the original for your function (mark or 1 cm gap)

    No special tools

    Who:
    you, arranging the item on the platen glass.
    How:
    for copying, faxing, or standard scan sizes, align the corner with the alignment mark; for a single item in Auto scan or up to 12 items in Auto multi scan, leave at least 1 cm (0.40 in.) from the diagonally striped border and between items.
    Result that matters:
    giving the scanner clear margins to detect the edges of each item.
    If the photo was touching the striped border or another photo:
    leave a 1 cm (0.40 in.) gap and scan again.
    If support code 3412 still appears with proper spacing:
    specify the original size manually.
    Evidence to keep:
    a note of whether Auto scan, Auto multi scan, or a standard size was selected.

    Evidence: Canon MAXIFY GX7000 series support code 3412 · Loading Based on Use (Canon MAXIFY GX7000 series)

  3. Specify a standard scan size instead of Auto scan

    No special tools

    Who:
    you, on the printer control panel or computer scan utility.
    How:
    in Scan on the control panel, set Doc.type to Document or Photo and specify a standard size (such as A4, Letter, or photo size) under Scan size instead of Auto scan, then align the original with the corner alignment mark.
    Result that matters:
    scanning the specified platen area without relying on automatic edge detection.
    If the scan succeeds once a size is specified:
    auto-cropping could not read the edges of that particular item.
    If code 3412 persists even when a standard size is specified:
    contact Canon support.
    Evidence to keep:
    the Doc.type and Scan size settings tested.

    Evidence: Canon MAXIFY GX7000 series support code 3412 · Loading Based on Use (Canon MAXIFY GX7000 series)

Still not solved

If the error persists, stop here. See what the technician must do and show you.

Where this code applies

A code is meaningful only inside the right product and version context.

Primary scope

System
Printers
Brand
Canon
Product type
Inkjet printer

Known code variants

  • Canon 3412
  • Canon GX7000 3412
  • Canon GX7050 3412
  • Canon support code 3412
  • código 3412 Canon
  • código de asistencia 3412
  • error de escaneado del original Canon
  • MAXIFY 3412
  • MAXIFY error 3412
  • Scanning original has failed Canon

What it means

On the Canon MAXIFY GX7000 series (and related Canon multifunction models with automatic platen cropping), support code 3412 indicates that the scanner could not detect or complete scanning of the item on the platen glass. This typically happens when the glass is empty, when a photo is placed against the edge instead of leaving a 1 cm (0.40 in.) margin during Auto scan or Auto multi scan, or when the item is smaller than 3 cm (1.2 in.) square. Other Canon series may assign different scanner codes, and this alert alone never proves a faulty CIS scanner bar.

Warnings and stop conditions

  • Lowsource verified

    An original smaller than 3 cm (1.2 in.) square or cut into a non-rectangular shape may not be scanned properly in automatic detection modes.

    Evidence: Canon MAXIFY GX7000 series support code 3412 · Loading Based on Use (Canon MAXIFY GX7000 series)

  • Lowsource verified

    The printer cannot scan the 1 mm (0.04 in.) striped area along the outer edges of the platen glass.

    Evidence: Loading Based on Use (Canon MAXIFY GX7000 series)

Symptoms and causes

Probable causes · in order

  • Original missing or misplaced on the platen glassCommon

    The original was not loaded on the platen glass or its position and orientation do not match the selected scan or copy function.

    Evidence: Canon MAXIFY GX7000 series support code 3412 · Loading Based on Use (Canon MAXIFY GX7000 series)

  • Missing 1 cm clearance during Auto scan or Auto multi scanPossible

    When scanning photos, postcards, or business cards with Auto scan or Auto multi scan, less than 1 cm (0.40 in.) of space was left from the diagonally striped platen edges or between items.

    Evidence: Canon MAXIFY GX7000 series support code 3412 · Loading Based on Use (Canon MAXIFY GX7000 series)

  • Original smaller than 3 cm square or irregularly shapedPossible

    The original measures less than 3 cm (1.2 in.) square or has a non-rectangular cut shape that automatic edge detection cannot crop.

    Evidence: Canon MAXIFY GX7000 series support code 3412 · Loading Based on Use (Canon MAXIFY GX7000 series)

Virtual technician

Does 3412 still appear after these checks?

Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.

Sources and technical references

  1. 1

    Canon MAXIFY GX7000 series support code 3412

    Canon PIXMA Manuals · 2021 · official_doc

  2. 2

    Código de asistencia 3412 de Canon MAXIFY GX7000 series

    Manuales de Canon PIXMA · 2021 · official_doc

  3. 3

    Loading Based on Use (Canon MAXIFY GX7000 series)

    Canon PIXMA Manuals · 2021 · official_doc

  4. 4

    Carga en función del uso (Canon MAXIFY GX7000 series)

    Manuales de Canon PIXMA · 2021 · official_doc

Sources: Canon MAXIFY GX7000 series support code 3412 · Código de asistencia 3412 de Canon MAXIFY GX7000 series · Loading Based on Use (Canon MAXIFY GX7000 series) · Carga en función del uso (Canon MAXIFY GX7000 series)reviewed 2026-10-18 · verified

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