Can you keep using it?
Can you keep using it?
Contact customer support if any of these apply
- !1003 returns even with correctly loaded paper and a clean cassette.
- !The printer repeatedly tries to feed paper but cannot pull a sheet in from the cassette.
What to check first
Step-by-step checks
- 1
Consumable check
Reload plain paper in the cassette and align the side guides with the paper edges.
Start with the official recovery step before moving on to parts or deeper servicing.
- 2
Consumable check
Make sure the paper stack is inserted fully and sits flat before trying again.
- 3
Consumable check
Press OK on the printer once the paper is loaded correctly.
Background
What this message usually means
Canon uses support code 1003 on GX1000-series printers when the cassette does not have paper loaded correctly or the paper did not feed as expected. In practice it usually means the paper stack, guides, or cassette loading needs attention before the printer can continue.
Before the message
What users usually notice first
Messages like this often appear after the printer fails one of its normal startup, supply, or paper-path checks and cannot return to ready state cleanly.
Diagnosis
Likely causes
The cassette is empty or the paper stack is not seated correctly.
The paper guides are not aligned with the edges of the paper.
The printer could not pull a sheet cleanly from the cassette.
Service
When service or replacement is more likely
- -Treat 1003 as a paper-loading or feed-start check first, not a hardware failure.
- -If the printer also reports a jam code, clear the jam before retrying 1003.
Avoid wrong turns
Common misreads of this message
- -Treating the message like a confirmed failed part instead of a support clue about which system has stopped the printer.
- -Assuming no physical path issue exists just because no full sheet is visible at first glance.
See also
Related codes in this family
Explore more
More Canon printer families
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How to identify your Canon printer family before using an error code page
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What a false paper-jam warning usually points to, from hidden scraps and tray issues to faults that are no longer simple jams.
Guide
How to tell if a printer fault is a cartridge issue or a service issue
How to separate ordinary cartridge or toner trouble from the kind of printer fault that usually points to real service.
Boundary
When to stop troubleshooting and move to support
Use the message once to classify the problem, then move to support if the printer still cannot return to ready after the first safe checks.
Keep browsing
Where to go next
Source notes
Canon's official 1003 support page identifies the code as a paper-out or paper-not-fed condition and points users back to proper cassette loading.
Built around Canon GX1000-series support-code guidance. Exact wording and cartridge naming can vary a little by region and model variant.
Printer error codes can vary a little by firmware, region, and exact model variant. Use this guide as a family-level starting point and stop if the next step would require disassembly or service-mode changes.
Known family variants: GX1020, GX2020, GX3020, GX4020
Last reviewed: 2026-04-12
Reference: Open reference