Can you keep using it?
Can you keep using it?
Contact customer support if any of these apply
- !1403 appears at all after a restart, because Canon treats it as a repair path.
- !The printer will not return to ready or reports multiple printhead faults together.
What to check first
Step-by-step checks
- 1
Safe first step
Power the printer off once and leave it unplugged briefly before retrying.
Start with the official recovery step before moving on to parts or deeper servicing.
- 2
Safe first step
If the code returns, stop repeated print attempts.
- 3
Escalate
Gather the exact support code and model name before contacting Canon support.
Background
What this message usually means
Canon uses support code 1403 when the TS5000 series believes the printhead may be damaged. Unlike a simple reseat warning, Canon's official guidance points straight toward repair support, so this should be treated as a serious printhead fault rather than a routine cartridge issue.
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 printhead has developed an internal electrical fault.
The printer cannot complete its printhead self-checks.
A prior printhead or carriage issue has progressed to a hardware fault.
Service
When service or replacement is more likely
- -This is more serious than a missing-ink-tank or install-position warning.
- -Repeated cleaning cycles are not a realistic fix for a persistent 1403.
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 any supply-related wording means the next step is automatically to buy a cartridge, toner, drum, or printhead.
See also
Related codes in this family
Explore more
More Canon printer families
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Helpful guides for this problem
Guide
When a printer says paper jam but there isn't one
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 identify your Canon printer family before using an error code page
How to work out the right Canon family first so the code page you open is actually talking about your printer.
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
If the same message returns immediately after one careful recovery attempt or the printer cannot reach ready state, stop there and use the family-specific support path.
Keep browsing
Where to go next
Source notes
Canon's official 1403 page says the printhead may be damaged and directs users to request repair.
Built around Canon TS5000-series official support-code guidance. Exact wording can vary a little by regional model name and firmware, but the support-code meaning stays close across the family.
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: TS5010, TS5020, TS5040, TS5050, TS5051, TS5053, TS5060, TS5070, TS5080, TS5090
Last reviewed: 2026-04-12
Reference: Open reference