Can you keep using it?
Can you keep using it?
Contact customer support if any of these apply
- !1304 returns repeatedly on clean paper after the path has been cleared.
- !You cannot clear the jam without forcing internal parts.
What to check first
Step-by-step checks
- 1
Consumable check
Turn the printer off before pulling jammed paper free.
Start with the official recovery step before moving on to parts or deeper servicing.
- 2
Consumable check
Remove visible jammed paper slowly and in the direction of travel if it comes free cleanly.
- 3
Safe first step
Check for torn scraps before restarting.
Background
What this message usually means
Canon uses support code 1304 for a paper jam condition in the GX4000 family. In practice it usually means a sheet is trapped in the feed or output path and must be removed before printing can continue safely.
Diagnosis
Likely causes
Paper is jammed in the feed path or near the output slot.
A torn scrap remains inside after an earlier jam.
The printer tried to feed paper that was curled, thick, or misaligned.
Service
When service or replacement is more likely
- -Repeated jam codes usually point to feed wear or hidden scraps, not one bad sheet.
- -Do not keep retrying jobs over a partial jam.
See also
Related codes in this family
Explore more
More Canon printer families
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Where to go next
Source notes
Canon's GX4000-series support-code list groups 1304 with printer paper-jam conditions.
Built around Canon GX4000-series support-code guidance. Exact wording, tray names, and consumables language 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: MAXIFY GX4020, MAXIFY GX4050, MAXIFY GX5020, MAXIFY GX5050, MAXIFY GX6020, MAXIFY GX6050
Last reviewed: 2026-04-12
Reference: Open reference