Main trade-off
Canon MAXIFY GX4020
Five Legal originals per feeder load and a lower 18/13 ISO print rating.
Head-to-head
Canon GX4020 vs GX6120: Craft sheets or larger stacks of forms?
The short answer
Choose GX4020 when supported thicker paperboard or fax is part of the regular routine. Choose GX6120 when longer one-sided document stacks dominate. Its feeder takes 50 Letter or 10 Legal originals against 35 or five on GX4020, and its listed print rate is higher. Both feeders are single-sided. GX6120’s larger number does not include GX4020’s documented rear flat craft route or fax.
Before you choose
The reasoning and the trade-offs
A ten-sheet Legal packet exposes more than the headline feeder size
Under the listed plain-paper limits, a ten-sheet one-sided Legal packet fits one GX6120 feeder load but needs two on GX4020. That can matter when paperwork interrupts a small business owner who is also managing the household. If the packet is two-sided, both machines still need the backs handled manually. If it is fragile or unsuitable for feeding, their Letter-size glass does not accept the entire Legal page at once. Count loads only after checking size, condition and sides.
What this is based on
A ten-sheet Legal packet plus divided attention crossed with 10 versus 5 Legal-sheet feeder capacity. Ceiling calculations are 10/10 equals one and 10/5 equals two loads, for suitable one-sided plain originals only.
Main trade-off
Canon MegaTank GX6120
No fax, no documented equivalent 0.1–0.7 mm flat route and no automatic both-side scan.
Canon MAXIFY GX4020
- Choose it for
- Use the documented single-sheet flat route for compatible 0.1–0.7 mm paperboard.
- Keep fax alongside ordinary home-office printing and scanning.
- Main trade-off
- Five Legal originals per feeder load and a lower 18/13 ISO print rating.
Canon MegaTank GX6120
- Choose it for
- Load longer suitable one-sided packets before reloading the feeder.
- Choose the higher 24/15.5 ISO print rating for a document-heavy routine.
- Main trade-off
- No fax, no documented equivalent 0.1–0.7 mm flat route and no automatic both-side scan.
About this comparison
Canon GX4020 vs GX6120 for a business sharing its printer with family projects. Compare the flat craft path, Legal feeder loads, fax and faster print rating.
Both Canon office tanks use GI-26 pigment inks, Ethernet, automatic duplex and a 250-sheet cassette plus 100-sheet rear tray. A home-business buyer can plausibly cross-shop their different paper-handling strengths instead of treating the model number as a simple upgrade ladder.
Winner by situation
Start with what you need it to do
Supported thicker paperboard is a recurring project
GX4020 documents the dedicated flat route.
- Canon MAXIFY GX4020
- Better fit
- Canon MegaTank GX6120
- Caution
Ten one-sided Legal originals arrive together
GX6120 fits the suitable packet in one feeder load.
- Canon MAXIFY GX4020
- Caution
- Canon MegaTank GX6120
- Better fit
Fax remains part of the office workflow
GX4020 includes fax, subject to service compatibility.
- Canon MAXIFY GX4020
- Better fit
- Canon MegaTank GX6120
- Caution
Need automatic scanning of both sides
Both document feeders are single-sided.
- Canon MAXIFY GX4020
- Caution
- Canon MegaTank GX6120
- Caution
What matters in practice
The differences that matter
A ten-sheet Legal packet exposes more than the headline feeder size
Under the listed plain-paper limits, a ten-sheet one-sided Legal packet fits one GX6120 feeder load but needs two on GX4020. That can matter when paperwork interrupts a small business owner who is also managing the household. If the packet is two-sided, both machines still need the backs handled manually. If it is fragile or unsuitable for feeding, their Letter-size glass does not accept the entire Legal page at once. Count loads only after checking size, condition and sides.
How we reached this conclusion
A ten-sheet Legal packet plus divided attention crossed with 10 versus 5 Legal-sheet feeder capacity. Ceiling calculations are 10/10 equals one and 10/5 equals two loads, for suitable one-sided plain originals only.
The faster office purchase can leave a weekend project without its paper route
GX4020 documents a flat route for one compatible A4, B5 or Letter paperboard sheet from 0.1 to 0.7 mm. GX6120 lists a cassette and ordinary rear tray with separate weight and media rules. Its higher print rate does not establish the same thick-media capability. A household sharing work documents and weekend invitations should check the exact project stock before moving up the model range. Both can handle supported alternative papers, but the specific flat-path claim belongs to GX4020.
How we reached this conclusion
Weekday office output plus weekend paperboard projects crossed with different documented feed architecture. Unknown compatibility is retained rather than treated as proven absence or converted from paper weight.
Keeping the ink family does not keep the whole office workflow
Both use GI-26 inks and Ethernet, which can simplify compatible refill stock and a fixed network location. GX4020 also has fax, while GX6120’s listed functions are print, scan and copy. A home office with an occasional required fax should include a suitable alternative service or device in the purchase decision. The same caution applies to original handling: a larger feeder still scans one side at a time. Shared supplies make a transition easier, but they do not mean every existing task moves with them.
How we reached this conclusion
An existing wired home office with shared refill stock and occasional fax crossed with common ink family but different listed functions. Alternative fax service is a requirement to evaluate, not an assumed free replacement.
Choice A
Canon, 5779C002
Canon MAXIFY GX4020
Use the documented single-sheet flat route for compatible 0.1–0.7 mm paperboard.
- Best matched use
- Use the documented single-sheet flat route for compatible 0.1–0.7 mm paperboard.
Checked facts
- One-sided original capacity: 35 Letter or 5 Legal sheets.
- Supported craft route: Single-sheet rear flat feed, 0.1–0.7 mm, A4, B5 or Letter paperboard.
- Document print rating: 18 black and 13 color ISO ipm.
- Shared supplies and office functions: GI-26 pigment inks, Ethernet and fax.
Choice B
Canon, 6882C002
Canon MegaTank GX6120
Load longer suitable one-sided packets before reloading the feeder.
- Best matched use
- Load longer suitable one-sided packets before reloading the feeder.
Checked facts
- One-sided original capacity: 50 Letter or 10 Legal sheets.
- Supported craft route: 250-sheet cassette and 100-sheet rear tray with their listed media rules.
- Document print rating: 24 black and 15.5 color ISO ipm.
- Shared supplies and office functions: GI-26 pigment inks, Ethernet, print, scan and copy without fax.
Meaningful differences
What changes the fit
| What changes | Canon MAXIFY GX4020 | Canon MegaTank GX6120 | Why it matters |
|---|---|---|---|
| One-sided original capacity | 35 Letter or 5 Legal sheets. | 50 Letter or 10 Legal sheets. | The longer paper size doubles the per-load difference, without automating the backs. |
| Supported craft route | Single-sheet rear flat feed, 0.1–0.7 mm, A4, B5 or Letter paperboard. | 250-sheet cassette and 100-sheet rear tray with their listed media rules. | Do not transfer the flat-path thickness claim to the newer office model. |
| Document print rating | 18 black and 13 color ISO ipm. | 24 black and 15.5 color ISO ipm. | These are simplex test ratings, not total completion times for every job. |
| Shared supplies and office functions | GI-26 pigment inks, Ethernet and fax. | GI-26 pigment inks, Ethernet, print, scan and copy without fax. | The refill family is shared while the functional handoff still needs checking. |
What you give up
Every choice has a cost
If you choose Canon MAXIFY GX4020
- A flat path can help a project but remains one sheet at a time. The larger printed batch still needs media, source and output handling checked.
If you choose Canon MegaTank GX6120
- A larger feeder does not turn the originals for you. Existing fax and craft workflows must be replaced or kept elsewhere if they are still needed.
Recommendation switch
The decision flips if...
The special paper route or fax is essential
Choose Canon MAXIFY GX4020. GX4020 retains those documented functions.
Larger suitable one-sided packets dominate
Choose Canon MegaTank GX6120. GX6120 accepts more originals per load.
What matters in practice
Before you choose
The faster office model accepts more originals, while the lower-numbered printer retains a special paper path and fax.
What this comparison cannot tell you
- No measured photo-quality or total-job timing comparison.
- No automatic duplex scanning on either model.
- No monetary saving inferred from shared ink family.
What the facts say
What the comparison shows
Useful conclusions from the current ink-tank printers comparison, followed by the checked facts used to reach them.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Canon MAXIFY GX4020 |
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| Canon MegaTank GX6120 |
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
Canon MAXIFY GX4020
Use the documented single-sheet flat route for compatible 0.1–0.7 mm paperboard.
Keep fax alongside ordinary home-office printing and scanning.
See price & reviews on AmazonCanon MegaTank GX6120
Load longer suitable one-sided packets before reloading the feeder.
Choose the higher 24/15.5 ISO print rating for a document-heavy routine.
See price & reviews on AmazonLinks open in a new tab.