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Canon LBP646Cdw vs G3270: Which Fits Your Documents?

Choose the LBP646Cdw for a print-only station organized around a cassette and occasional single-sheet feeding. Choose the G3270 if you need flatbed scanning/copying or supported long custom output. Those are separate needs: long print support does not enlarge its scanner.

Published by Pickoryx · Published 2026-10-13

Source checked 2026-10-13 06:44 UTC

Products compared

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The buying question

Do you need a scanner at the printer, and does your output fit ordinary sheets or require supported long custom paper?

A print-only cassette-based setup versus flatbed capture and rear-fed custom media.

Quick verdict

When the recommendation changes
  • A need to capture originals rules out the LBP646Cdw as a complete standalone solution.
  • For long output, check the exact size, paper and computer settings before choosing the G3270.

The differences that matter

Original Capture Capability

Canon Color imageCLASS LBP646Cdw

Print only.[1]

Canon MegaTank PIXMA G3270 (Black)

Flatbed scanning and copying; maximum original 8.5 × 11.7 inches.[2]

What this changes: Choose the G3270 if the station must capture paper originals; the LBP646Cdw requires a separate capture solution.[1, 2]

The better fit depends on your priorities

Paper Feed And Media Fit

Canon Color imageCLASS LBP646Cdw

250-sheet cassette plus one-sheet manual feed. Canon lists 3 × 5 to 8.5 × 14-inch paper for both.[1]

Canon MegaTank PIXMA G3270 (Black)

Rear tray: approximately 100 plain sheets, only 10 for Legal. Custom paper: 2.17 × 3.50 to 8.50 × 47.24 inches; above 26.61 inches high, Media Type becomes Plain Paper. OS support varies.[2, 3, 4, 5]

What this changes: Favor the LBP646Cdw for cassette-based ordinary document printing when no scanner is needed. Favor the G3270 for supported longer output, accepting rear loading and the exact media/settings limits.[1, 2, 4, 5]

The better fit depends on your priorities

Best for your routine

Ordinary document printing with capture handled elsewhere

Best fit: Canon Color imageCLASS LBP646Cdw

Based on listed features, not comparative testing.

The cassette/manual-feed arrangement suits this setup without requiring an onboard scanner.

View Canon Color imageCLASS LBP646Cdw on AmazonPaid link

Capture paper originals at the same station

Best fit: Canon MegaTank PIXMA G3270 (Black)

Based on listed features, not comparative testing.

The G3270 supplies the flatbed function missing from the print-only LBP646Cdw.

View Canon MegaTank PIXMA G3270 (Black) on AmazonPaid link

Print a supported custom sheet longer than 14 inches

Best fit: Canon MegaTank PIXMA G3270 (Black)

Based on listed features, not comparative testing.

The G3270 offers the longer documented range, subject to its paper and OS restrictions.

View Canon MegaTank PIXMA G3270 (Black) on AmazonPaid link

Value and trade-offs

One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.

Pay extra only for an arrangement that fits your actual originals and output. A larger paper load does not establish higher throughput or lower running cost.

Verified price history is unavailable; purchase timing cannot be assessed.

Limitations

  • This is a feature-fit comparison, without hands-on testing, measured quality, speed, jam-rate or running-cost conclusions.
  • Paper-size ranges are not a promise that every material works at every size. G3270 plain paper is limited to 64–105 g/m²; operating system and media settings matter.
  • These paper ranges do not establish two-sided printing eligibility. Confirm that separate requirement for the exact paper and software.

Questions shoppers ask

Can the G3270 scan an original as long as its supported print paper?

No. Its flatbed original limit is 8.5 × 11.7 inches. Long custom printing is a separate capability.

Does the G3270 hold 100 sheets regardless of size?

No. The manual limits Legal plain paper to 10 sheets; some paper or environmental conditions also require a smaller load.

Methodology and sources

Compared original capture separately from paper loading and supported output sizes.

AI-assisted research and writing organized the documented features and restrictions; Pickoryx did not test either printer.

View 5 sources
  1. 1.Canon Color imageCLASS LBP646CdwCanon · Official specifications · Source checked 2026-10-13 06:44 UTC
    Evidence used on this page
    • SKU 6929C008; Technical Specifications: Functions, Paper Capacity, Min / Max Paper Size: Print-only; 250-sheet cassette plus one-sheet manual feed; both listed from 3 × 5 to 8.5 × 14 inches.
  2. 2.Canon Support for MegaTank PIXMA G3270Canon · Official specifications · Source checked 2026-10-13 06:44 UTC
    Evidence used on this page
    • Technical Specifications: Media Handling, Paper Capacity, Copy and Scan: Rear tray; 100 sheets plain paper; flatbed scan and copy with 8.5 × 11.7-inch original limit.
  3. 3.Canon G3070 series online manual model listCanon · Official specifications · Source checked 2026-10-13 06:43 UTC
    Evidence used on this page
    • Online Manual heading, model list: Explicitly includes G3270.
  4. 4.Canon G3070 series: Supported Media TypesCanon · Official specifications · Source checked 2026-10-13 06:43 UTC
    Evidence used on this page
    • Page Sizes: OS note and Special sizes; Paper Weight: Custom size 2.17 × 3.50 to 8.50 × 47.24 inches; above 26.61 inches height Media Type is Plain Paper; OS-dependent support; plain paper 64–105 g/m².
  5. 5.Canon G3070 series: Paper Load LimitCanon · Official specifications · Source checked 2026-10-13 06:44 UTC
    Evidence used on this page
    • Paper Load Limits of Rear Tray, other paper and footnote 1: Approximately 100 plain sheets, but Legal limited to 10; certain media/conditions may require a smaller load.

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