Exact model-family answer directory

Canon MAXIFY GX7021 troubleshooting

Choose the symptom actually shown by 4471C037. Canon printer; PIXMA/MegaTank/MAXIFY/imageCLASS ink/toner systems and maintenance paths differ. Error codes remain separate records because the same characters can mean different things on another platform.

offlinepaper jamnot printingblank pagesfadedsmudges

Reviewed records

16 exact answers

Not sure where the fault is?
Canon · ADF jam

Canon MAXIFY GX7021 automatic document feeder jams, skews or pulls multiple pages

For the Canon MAXIFY GX7021, original condition, guides, roller/separation pad and sensor path should be checked.

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Canon · cartridge not recognized

Canon MAXIFY GX7021 does not recognize ink or toner

For the Canon MAXIFY GX7021, exact part compatibility, shipping seals, contacts, seating and firmware should be checked before replacement.

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Canon · firmware

Canon MAXIFY GX7021 firmware update will not install

For the Canon MAXIFY GX7021, exact model, stable power/network and signed update path are required.

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Canon · offline

Canon MAXIFY GX7021 is offline or unavailable

For the Canon MAXIFY GX7021, prove the printer can print internally before repairing the network or computer queue.

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Canon · smudges

Canon MAXIFY GX7021 leaves smudges, spots or repeated marks

For the Canon MAXIFY GX7021, mark spacing and whether ink/toner is fused/dry identify media, roller, drum, fuser or maintenance faults.

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Canon · blank pages

Canon MAXIFY GX7021 prints blank pages

For the Canon MAXIFY GX7021, supply installation/venting, protective seals, nozzle/printhead output and driver document content should be separated.

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Canon · faded

Canon MAXIFY GX7021 prints faded, streaked, banded or with missing colors

For the Canon MAXIFY GX7021, internal quality output separates hardware/supply from app, driver and color profile.

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Canon · wrong colors

Canon MAXIFY GX7021 prints the wrong colors

For the Canon MAXIFY GX7021, internal output, one color-management owner, paper/ink profile and supply state should be controlled.

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Canon · slow printing

Canon MAXIFY GX7021 prints very slowly

For the Canon MAXIFY GX7021, resolution/quality mode, duplex, document complexity, connection and spool/driver should be timed separately.

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Canon · not printing

Canon MAXIFY GX7021 receives jobs but does not print

For the Canon MAXIFY GX7021, printer error state, local engine, connection, queue, driver and document should be separated.

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Canon · scanner not found

Canon MAXIFY GX7021 scanner is not found or scanning fails

For the Canon MAXIFY GX7021, local scanner operation, connection, driver/app, permissions and destination storage should be separated.

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Canon · maintenance

Canon MAXIFY GX7021 shows a maintenance box, drum, fuser, waste toner or service message

For the Canon MAXIFY GX7021, the exact consumable/service item and whether it is customer-replaceable are model-specific.

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Canon · paper jam

Canon MAXIFY GX7021 shows a paper jam or repeatedly jams

For the Canon MAXIFY GX7021, the exact feed/duplex/output location, media condition and a complete sheet count matter.

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Canon · AirPrint

Canon MAXIFY GX7021 will not AirPrint, Mopria or print from a phone

For the Canon MAXIFY GX7021, printer LAN connection, same-network discovery, guest isolation, protocol support and app permissions should be separated.

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Canon · Wi-Fi

Canon MAXIFY GX7021 will not connect to Wi-Fi

For the Canon MAXIFY GX7021, printer radio, supported band/security, setup mode, router isolation and account/app should be separated.

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Canon · duplex

Canon MAXIFY GX7021 will not print or scan two-sided

For the Canon MAXIFY GX7021, model capability, driver option, paper size/type and accessory detection must align.

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Confirm the model first

Which units this covers, and how to tell yours is one of them

Every answer below is scoped to these model identifiers. A neighbouring model in the same line can use a different part, a different reset sequence or a different radio, so matching the identifier before following a procedure is the step that decides whether the rest of the page applies to you.

Model numbers and patterns
4471C037
What that covers
Canon printer; PIXMA/MegaTank/MAXIFY/imageCLASS ink/toner systems and maintenance paths differ.

Published specification

What is true of this model and changes how you fix it

These are the properties that decide which procedure applies. Each is read from the manufacturer’s own published figures for this model, not carried over from a sibling that shares its retail name.

Type — BUSINESS refillable INK TANK all-in-one (MAXIFY)
A business-class MAXIFY MegaTank AIO — refillable ink BOTTLES with PIGMENT inks (more water/smudge-resistant, business-document oriented) and high-volume features (large paper capacity, fast duplex, fax/ADF). Still inkjet, so the printhead can CLOG if unused.
Pigment ink + volume
Pigment inks suit crisp, durable documents; the tank system gives very low running cost for offices. Don't run tanks dry. Initial charging uses some starter ink (normal).
Connectivity
Wi-Fi/Ethernet/USB via the Canon app; 'offline' is usually a network/queue issue.

Where these figures were read. canon.com MAXIFY GX7021 (business refillable INK TANK AIO, pigment), read 2026-09-01

Manufacturer support for this product line. Canon SupportPrinter support. Official Canon model manuals, drivers, errors and maintenance support.

Exact questions

Questions that only have an answer for the Canon MAXIFY GX7021

Each answer below uses this model’s own published figures. The same question asked about a different model in the line has a different answer, which is why it is answered here rather than on a general page.

My Canon MAXIFY GX7021 output smudges or clogs.+

The MAXIFY uses pigment inks that are more smudge-resistant than dye — if it is smudging, make sure the ink is dry before handling and that you are using the correct paper type/setting. If output is faded or streaked, it is a printhead clog (still an inkjet): run the nozzle check and Cleaning/Deep Cleaning, and never let the tanks run fully dry. As a high-volume business tank printer, keeping it used and the tanks topped up keeps it reliable and very low-cost per page.

Structured depth, not empty permutations

Every published record carries a direct answer, scope, ordered fixes, risk notes and sources.

Device and manufacturer hubs share a consistent record system, but each answer carries the relevant controls, fault boundaries, consequences and official support entry point for that platform.

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